com.isomorphic.util

## Class DataTools

- java.lang.Object
- - com.isomorphic.util.DataTools

-     public class DataTools
      extends java.lang.Object

  `DataTools` is a utility class with the following facilities:
  - `getProperties()` and `setProperties()`: `getProperties()` allow the properties of any Java object to be extracted as a Map, and `setProperties` allows any Map to be applied to a Java object, calling setter methods named after the keys of the Map. These methods are very useful for going from Java beans to a JavaScript representation and back.
  - prettyPrint(), which uses a JSTranslater to output a text summary of arbitrary Java objects, very useful for logging
  - many utilities for manipulating Java Collections
  See Also:
    `DataTools.prettyPrint(Object)`, `DataTools.getProperties(Object)`, `DataTools.setProperties(Map, Object)`

- - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static java.util.List` | `addAll(java.util.List target, java.util.Iterator source)` Adds all the elements of an `Iterator` to a `List`.
    `static java.util.List` | `addAll(java.util.List target, java.util.List source)` Adds the contents of one `List` to another.
    `static java.util.List` | `addAsList(java.util.List targetList, java.lang.Object sourceList)` Add either a single object or List to another List.
    `static void` | `addDisjunctionToSet(java.util.List one, java.util.List two)` Adds elements of the second `List` that are missing in the first.
    `static void` | `addToIntInMap(java.util.Map map, java.lang.Object key, int addition)` Add to the value of an Integer instance stored in the map "map" under key "key".
    `static java.util.List` | `arrayToList(java.lang.Object[] arr)` Creates a `List` from an array.
    `static java.util.List` | `arrayToList(java.lang.Object[] arr, int from, int length)` Creates a `List` containing a subset of an array.
    `static java.lang.Object[]` | `arrayUnion(java.lang.Object[] one, java.lang.Object[] two)` Creates a new array containing all the elements of two arrays.
    `static java.lang.String` | `bcrypt(java.lang.String plaintext)` Returns the hash of the passed-in string, encrypted using the bcrypt algorithm
    `static java.util.List` | `buildList(java.lang.Object[] args)` Creates a `List` containing the passed in objects
    `static DataTypeMap` | `buildMap(java.lang.Object[] args)` Creates a `Map` of key/value pairs.
    `static java.lang.Object` | `castValue(java.lang.Object value, java.lang.Class targetType, DataSource ds)` Converts specified `value` to `targetType`.
    `static int` | `checkSize(java.lang.Object obj)` Obtains the size of a `Map`, `List` or `String`.
    `static java.lang.Object` | `combineAsLists(java.lang.Object one, java.lang.Object two)` Combine two single objects or Lists into one new List, or return a single Object if one argument is single and the other argument is null.
    `static boolean` | `contains(java.lang.String str, java.lang.String substr)` Tests if the specified substring is present in the specified string.
    `static java.lang.Object` | `deepMerge(java.lang.Object source, java.lang.Object target, boolean overwrite)` Merges one collections data structure into another.
    `static void` | `deepRemoveEmptyCollections(java.lang.Object data)` Walks a nested Collection-based datastructure and removes all Collections entities that are zero-sized.
    `static void` | `deepRemoveKey(java.lang.Object keyToRemove, java.lang.Object data)` Walks a nested Collection-based datastructure and removes all instances of keyToRemove (and its associated value) from any Map objects found in the data structure.
    `static void` | `deepRemoveNullValues(java.lang.Object data)` Walks a nested Collection-based datastructure and removes all entities that have a null value.
    `static java.util.Map` | `divideMap(java.util.Map origMap, java.util.List retainKeys)` Alters a `Map` so that it retains only the specified keys, returning a `Map` with any keys not retained.
    `static java.util.List` | `enumToList(java.util.Iterator i)` Converts an `Iterator` to a `List`.
    `static java.lang.String` | `fastDateFormat(java.util.Date date)` Returns a `String` representation of a `Date` object.
    `static java.util.Map` | `find(java.util.List rows, java.lang.Object propertyName, java.lang.Object value)` Given a List of Maps, return the first Map that has a certain value for a key
    `static java.util.List` | `findAll(java.util.List rows, java.util.Map properties)` Given a List of Maps, return all Maps that have common key/value pairs with another Map.
    `static java.util.List` | `findAll(java.util.List rows, java.lang.Object propertyName, java.lang.Object value)` Given a List of Maps, return all Maps that have a certain value for a key.
    `static java.lang.String` | `formatDate(java.lang.String format, java.util.Date date)` Returns the parameter date formatted according to the parameter format string.
    `static java.lang.Class` | `getCachedClass(java.lang.String className)` Returns loaded `Class` object for specified name.
    `static java.lang.reflect.Field[]` | `getClassFields(java.lang.Class c)` Returns array of all fields declared in specified class and it's supper classes.
    `static java.lang.reflect.Method[]` | `getClassMethods(java.lang.Class c)` Returns array of all methods declared in specified class and it's supper classes.
    `static int` | `getIntInMap(java.util.Map map, java.lang.Object key)` Get value of an Integer instance stored in the map "map" under key "key", as the primitive type `int`.
    `static java.lang.Object` | `getLoggerRepository()` Returns log4j `LoggerRepository` instance that was configured from `log4j.isc.config.xml`.
    `static java.util.Map` | `getProperties(java.lang.Object bean)` Gets the properties for a JavaBean and returns them as a `Map`.
    `static java.util.List` | `getProperty(java.util.List rows, java.lang.Object column)` Given a result set, as a `List` of rows, and a column name, returns the `List` of values for that column.
    `static java.util.Map` | `getPropertyDescriptors(java.lang.Class beanClass)` Gets the properties for a JavaBean class through introspection and returns them as a `Map`. Removes properties added by byte-code instrumentation: `interceptFieldCallback` property is removed if class implements `net.sf.cglib.transform.impl.InterceptFieldEnabled` interface; `fieldHandler` property is removed if class implements `org.hibernate.bytecode.javassist.FieldHandled` interface;
    `static java.util.Map` | `getPropertyDescriptors(java.lang.Object bean)` Gets the property descriptors for a JavaBean and returns them as a `Map`.
    `static java.lang.Class` | `getPropertyType(java.lang.Class c, java.lang.String propertyName)` Returns type of specified property in provided class.
    `static java.lang.Class` | `getRealClass(java.lang.Object bean)` Checks if provided bean is a proxy and extracts real class.
    `static java.lang.Object` | `getSingle(java.lang.Object toFetchFrom)` Retrieves the element of a single element `List`, or the key of a single key/value pair `Map`.
    `static java.lang.String` | `getStackTrace(java.lang.Throwable t)` Returns the stack trace of a `Throwable` object as a `String`.
    `static java.lang.String` | `getStackTrace(java.lang.Throwable t, int lineCount)` Returns the stack trace of a `Throwable` object as a `String` shortened to requested number of lines.
    `static java.lang.String` | `getterName(java.lang.reflect.Method method)` Tests if method is getter and returns property name.
    `static java.lang.String` | `hashValue(java.lang.String plaintext)` Returns the hash of the passed-in string, encrypted using the MD5 algorithm
    `static java.lang.String` | `hashValue(java.lang.String plaintext, java.lang.String algorithm)` Returns the hash of the passed-in string, encrypted using the specified algorithm
    `static java.util.Map` | `identityMap(java.util.List list)` Stores the elements of a `List` as the keys and values of a `Map`.
    `static void` | `incrementIntInMap(java.util.Map map, java.lang.Object key)` Add to the value of an Integer instance stored in the map "map" under key "key".
    `static boolean` | `isNumberType(java.lang.Class clazz)` Returns `true` if provided class is either assignable to `Number` or represents one of primitive number types `byte, short, int, long, float, double`.
    `static boolean` | `isTextType(java.lang.Class clazz)` Returns `true` if provided class is either assignable to `Character` or assignable to `String` or represents primitive `char` type.
    `static org.apache.commons.jxpath.JXPathContext` | `jxPathContext(java.lang.Object obj)` Returns JXPathContext in lenient mode
    `static java.util.List` | `keysAsList(java.util.Map map)` Creates a `List` of the keys from a `Map`.
    `static java.util.List` | `keysNotPresent(java.util.Map map, java.util.List keys)` Given a `Map` and a `List` of keys, returns the list of keys in the `List` that are not present in the `Map`.
    `static java.lang.Object[]` | `listToArray(java.util.List list)` Creates an `Object` array from a `List`.
    `static java.lang.String[]` | `listToStringArray(java.util.Collection list)` Creates a `String` array from a `List`.
    `static java.util.List` | `makeList(java.lang.Object element)` Creates a `List` containing one element.
    `static java.util.List` | `makeListIfSingle(java.lang.Object obj)` Creates a `List` containing one element if the element is not a `List`.
    `static java.util.Map` | `mapDisjunction(java.util.Map one, java.util.Map two)` Creates a new `Map` containing the key/value pairs whose keys are not present in both `Maps` supplied.
    `static java.util.Map` | `mapIntersection(java.util.Map primary, java.util.Map secondary)` Constructs a `Map` containing the key/value pairs of the primary `Map` whose keys are present in the secondary `Map`.
    `static java.util.List` | `mapIntersectionKeys(java.util.Map one, java.util.Map two)` Returns the list of keys that are present in both `Maps`.
    `static java.util.Map` | `mapMerge(java.util.Map source, java.util.Map target)` Copies the key/value pairs of a `Map` into another `Map`, replacing the key/value pair of the target `Map`.
    `static java.util.Map` | `mapMergeNonNull(java.util.Map source, java.util.Map target)` Copies the key/value pairs of a `Map` into another `Map`, replacing the key/value pair of the target `Map` if the source value is non-null.
    `static java.util.Properties` | `mapToProperties(java.util.Map map)` Creates a `Properties` object from a `Map`.
    `static java.util.Map` | `mapUnion(java.util.Map primary, java.util.Map secondary)` Constructs a `Map` containing all the key/value pairs of the `Maps` supplied as arguments, with the first `Map` taking precedence.
    `static java.lang.String` | `md5(java.lang.String plaintext)` Returns the hash of the passed-in string, encrypted using the MD5 algorithm
    `static java.lang.Object` | `nestedGet(java.lang.Object struct, java.lang.String fetch)` Retrieves a object from a series of nested `Lists` or `Map`.
    `static java.util.LinkedHashMap` | `orderedMapUnion(java.util.Map primary, java.util.Map secondary)` Does the same as `mapUnion`, but keeps order of key/value pairs.
    `static java.lang.String` | `prettyPrint(java.lang.Object obj)` Formats information about an `Object` for viewing or printing as a `String`.
    `static java.util.Map` | `putAllNotPresent(java.util.Map target, java.util.Map source)` Copies the key/value pairs of a `Map` into another `Map`, adding only key/value pairs for which the target `Map` does not already have a mapping (as determined by the `containsKey` method).
    `static java.util.Map` | `putCombinedList(java.util.Map map, java.lang.Object key, java.lang.Object value)` Put a value into a Map, combining with any existing value as though combineAsLists() had been called on the existing value and new value.
    `static java.util.Map` | `putMultiple(java.util.Map map, java.lang.Object key, java.lang.Object value)` Puts a key/value pair into a `Map`, if there is already a value under that key, create a `List` to hold the values.
    `static java.util.Map` | `putMultipleAsList(java.util.Map map, java.lang.Object key, java.lang.Object value)` Works like the `putMultiple` method, but in this case values are always encapsualted in a `List`.
    `static boolean` | `recursiveFileDelete(java.io.File file)` Recursively deletes a directory.
    `static void` | `registerTransformer(java.lang.Class targetType, DataTools.Transformer transformer)` Register a Transformer.
    `static java.util.Map` | `remapRow(java.util.Map row, java.util.Map remap)` Change the keys used in a `Map` to a new set of keys.
    `static java.util.Map` | `remapRow(java.util.Map row, java.util.Map remap, boolean keepNonRemapped)` Change the keys used in a `Map` to a new set of keys.
    `static java.util.List` | `remapRows(java.util.List rows, java.util.Map remap)` Remap the keys in a `List` of `Maps`.
    `static java.util.List` | `remapRows(java.util.List rows, java.util.Map remap, boolean keepNonRemapped)` Remap the keys in a `List` of `Maps`.
    `static java.util.Map` | `removeEmptyStringValuedKeys(java.util.Map map)` Removes all keys from the passed-in `map` where the values are empty strings.
    `static java.util.Map` | `removeNullValuedKeys(java.util.Map map)` Removes all keys from the passed-in `map` where the values are `null`.
    `static java.util.Map` | `reverseMap(java.util.Map origMap)` Reverses a `Map` so that values point at keys.
    `static java.util.List` | `setDisjunction(java.util.Collection one, java.util.Collection two)` Creates a new `List` containing all elements from the first `Collection` that are not in the second `Collection`.
    `static java.util.List` | `setIntersection(java.util.Collection one, java.util.Collection two)` Creates a new `List` containing the common elements of two `Collections`.
    `static java.lang.Object` | `setProperties(java.util.Map propertyMap, java.lang.Object bean)` As the three-argument version of this method, but passes a null dataSource
    `static java.lang.Object` | `setProperties(java.util.Map propertyMap, java.lang.Object bean, DataSource dataSource)` Sets the properties for a JavaBean provided as key-value pairs in a `Map`.
    `static java.lang.Object` | `setProperties(java.util.Map propertyMap, java.lang.Object bean, DataSource dataSource, DSRequest dsRequest)` This version of setProperties accepts a DSRequest for use as context by the conversion process.
    `static java.util.List` | `setUnion(java.util.List one, java.util.List two)` Creates a new `List` containing all the elements of two `Lists`.
    `static java.lang.String` | `sha(java.lang.String plaintext)` Returns the hash of the passed-in string, encrypted using the SHA-1 algorithm
    `static java.util.List` | `subsetByPrefix(java.util.List list, java.lang.String prefix)` Returns any strings within `list` which begin with `prefix`.
    `static java.util.Map` | `subsetMap(java.util.Map origMap, java.util.List keys)` Given a `Map` and a `List` of keys, returns a subset of the `Map` containing the key/value pairs as specified by the `List` of keys.
    `static java.util.Map` | `substringKeyMap(java.lang.String prefix, java.util.Map source)` Constructs a `Map` of key/value pairs from the source `Map` whose keys start with a specific prefix.
    `static java.util.List` | `toLowerCaseList(java.util.List list)` Given a `List` of strings, returns a new `List` of lower cased strings.

- - ### Method Detail

    - #### keysNotPresent

          public static java.util.List keysNotPresent(java.util.Map map,
                                                      java.util.List keys)

      Given a `Map` and a `List` of keys, returns the list of keys in the `List` that are not present in the `Map`.

      Parameters:
        `map` - the `Map`
        `keys` - the `List` of keys
      Returns:
        the list of keys in the supplied `List` that are not present in the `Map`

    - #### subsetMap

          public static java.util.Map subsetMap(java.util.Map origMap,
                                                java.util.List keys)

      Given a `Map` and a `List` of keys, returns a subset of the `Map` containing the key/value pairs as specified by the `List` of keys.

      Parameters:
        `origMap` - the original `Map`
        `keys` - the keys denoting the key/value pairs that should be included in the result `Map`
      Returns:
        the subset of the original `Map` containing only the key/value pairs corresponding to the supplied `List` of keys

    - #### subsetByPrefix

          public static java.util.List subsetByPrefix(java.util.List list,
                                                      java.lang.String prefix)

      Returns any strings within `list` which begin with `prefix`. Non-string members of `list` are ignored.

      Parameters:
        `list` - the list of strings
        `prefix` - strings in the list with this prefix will be returned
      Returns:
        a list of the strings in the supplied list that begin with the specified prefix

    - #### removeNullValuedKeys

          public static java.util.Map removeNullValuedKeys(java.util.Map map)

      Removes all keys from the passed-in `map` where the values are `null`.

      Parameters:
        `map` - the `Map` on which to operate

    - #### removeEmptyStringValuedKeys

          public static java.util.Map removeEmptyStringValuedKeys(java.util.Map map)

      Removes all keys from the passed-in `map` where the values are empty strings.

      Parameters:
        `map` - the `Map` on which to operate

    - #### divideMap

          public static java.util.Map divideMap(java.util.Map origMap,
                                                java.util.List retainKeys)

      Alters a `Map` so that it retains only the specified keys, returning a `Map` with any keys not retained.

      Parameters:
        `origMap` - the original `Map`
        `retainKeys` - the `List` of keys corresponding to the key/value pairs that should be retained
      Returns:
        a `Map` containing the key/value pairs that were not retained

    - #### mapUnion

          public static java.util.Map mapUnion(java.util.Map primary,
                                               java.util.Map secondary)

      Constructs a `Map` containing all the key/value pairs of the `Maps` supplied as arguments, with the first `Map` taking precedence. If the same key is present in both `Maps`, the returned `Map` will contain the key/value pair of the first `Map`.

      Parameters:
        `primary` - the first `Map`
        `secondary` - the second `Map`
      Returns:
        the union of the two `Maps`

    - #### orderedMapUnion

          public static java.util.LinkedHashMap orderedMapUnion(java.util.Map primary,
                                                                java.util.Map secondary)

      Does the same as `mapUnion`, but keeps order of key/value pairs. Key/value pairs of primary `Map` will go first, then key/value pairs from secondary `Map` ignoring dublicates. Consider using `LinkedHashMap` for primary and secondary maps to get full value from this method.

      Parameters:
        `primary` - the first `Map`
        `secondary` - the second `Map`
      Returns:
        the union of the two `Maps`

    - #### deepMerge

          public static java.lang.Object deepMerge(java.lang.Object source,
                                                   java.lang.Object target,
                                                   boolean overwrite)
                                            throws java.lang.Exception

      Merges one collections data structure into another. Any nodes/items not present in the target get created. Those that are present are merged. Note that the initial source and target must be of the same type and their data must not contain conflicting types.
      Parameters:
        `source` - the `Object` to be copied from
        `target` - the `Object` to be copied into
        `overwrite` - controls how non-collection/non-map collisions are resolved. If true, target values are overwritten with source values. If false, target values are not overwritten.
      Returns:
        the merged `Object`
      Throws:
        `java.lang.Exception`

    - #### deepRemoveKey

          public static void deepRemoveKey(java.lang.Object keyToRemove,
                                           java.lang.Object data)
                                    throws java.lang.Exception

      Walks a nested Collection-based datastructure and removes all instances of keyToRemove (and its associated value) from any Map objects found in the data structure.
      Parameters:
        `keyToRemove` - the key to remove
        `data` - the nested data structure to walk
      Throws:
        `java.lang.Exception`

    - #### deepRemoveNullValues

          public static void deepRemoveNullValues(java.lang.Object data)
                                           throws java.lang.Exception

      Walks a nested Collection-based datastructure and removes all entities that have a null value. For Maps this means the removal of keys with a value of null, for Collections this means the removel of null elements.
      Parameters:
        `data` - the nested data structure to walk
      Throws:
        `java.lang.Exception`

    - #### deepRemoveEmptyCollections

          public static void deepRemoveEmptyCollections(java.lang.Object data)
                                                 throws java.lang.Exception

      Walks a nested Collection-based datastructure and removes all Collections entities that are zero-sized.
      Parameters:
        `data` - the nested data structure to walk
      Throws:
        `java.lang.Exception`

    - #### mapMerge

          public static java.util.Map mapMerge(java.util.Map source,
                                               java.util.Map target)

      Copies the key/value pairs of a `Map` into another `Map`, replacing the key/value pair of the target `Map`.

      Parameters:
        `source` - the `Map` to be copied from
        `target` - the `Map` to be copied into
      Returns:
        the merged `Map`

    - #### mapMergeNonNull

          public static java.util.Map mapMergeNonNull(java.util.Map source,
                                                      java.util.Map target)

      Copies the key/value pairs of a `Map` into another `Map`, replacing the key/value pair of the target `Map` if the source value is non-null.

      Parameters:
        `source` - the `Map` to be copied from
        `target` - the `Map` to be copied into
      Returns:
        the merged `Map`

    - #### putAllNotPresent

          public static java.util.Map putAllNotPresent(java.util.Map target,
                                                       java.util.Map source)

      Copies the key/value pairs of a `Map` into another `Map`, adding only key/value pairs for which the target `Map` does not already have a mapping (as determined by the `containsKey` method).

      Parameters:
        `source` - the `Map` to be copied from
        `target` - the `Map` to be copied into
      Returns:
        the merged `Map`

    - #### mapIntersection

          public static java.util.Map mapIntersection(java.util.Map primary,
                                                      java.util.Map secondary)

      Constructs a `Map` containing the key/value pairs of the primary `Map` whose keys are present in the secondary `Map`.

      Parameters:
        `primary` - the primary `Map`
        `secondary` - the secondary `Map`
      Returns:
        the intersection of the two `Map`

    - #### mapIntersectionKeys

          public static java.util.List mapIntersectionKeys(java.util.Map one,
                                                           java.util.Map two)

      Returns the list of keys that are present in both `Maps`.

      Parameters:
        `one` - the first `Map`
        `two` - the second `Map`
      Returns:
        the list of keys that is the intersection of the `Maps`

    - #### substringKeyMap

          public static java.util.Map substringKeyMap(java.lang.String prefix,
                                                      java.util.Map source)

      Constructs a `Map` of key/value pairs from the source `Map` whose keys start with a specific prefix. The new `Map`'s keys are the origin keys without the prefix.

      Parameters:
        `prefix` - the prefix to be matched with the keys
        `source` - the source `Map`
      Returns:
        the new `Map`

    - #### identityMap

          public static java.util.Map identityMap(java.util.List list)

      Stores the elements of a `List` as the keys and values of a `Map`. This can serve as a `HashSet` which disallows duplicates and can quickly determine whether a set has a given member.

      Parameters:
        `list` - the `List` to be stored
      Returns:
        the `Map` containing the uniques elements of the list

    - #### reverseMap

          public static java.util.Map reverseMap(java.util.Map origMap)

      Reverses a `Map` so that values point at keys. If more than one value in the original `Map` has the same key (where "same" is determined by `hashcode`), the multiple keys are placed into a `List` in the reversed `Map`.

      Note: If in the original `Map`, `Lists` are mapped to values, and more than one `List` maps to the same value, this method will work incorrectly since it won't be able to tell `Lists` it created for multiple values from `Lists` that were keys in the original `Map`.

      Parameters:
        `origMap` - the original `Map`
      Returns:
        the reversed `Map`

    - #### putMultiple

          public static java.util.Map putMultiple(java.util.Map map,
                                                  java.lang.Object key,
                                                  java.lang.Object value)

      Puts a key/value pair into a `Map`, if there is already a value under that key, create a `List` to hold the values.

      Parameters:
        `map` - the `Map` to which the key/value pair should be added
        `key` - the key in the key/value pair
        `value` - the value in the key/value pair
      Returns:
        the `Map`, with the key/value pair added to it

    - #### putMultipleAsList

          public static java.util.Map putMultipleAsList(java.util.Map map,
                                                        java.lang.Object key,
                                                        java.lang.Object value)

      Works like the `putMultiple` method, but in this case values are always encapsualted in a `List`.

      Parameters:
        `map` - the `Map` to which the key/value pair should be added
        `key` - the key in the key/value pair
        `value` - the value in the key/value pair
      Returns:
        the `Map`, with the key/value pair added to it

    - #### addAll

          public static java.util.List addAll(java.util.List target,
                                              java.util.List source)

      Adds the contents of one `List` to another.

      Parameters:
        `target` - the `List` to which the contents of the source `List` should be added
        `source` - the `List` to be added to the target `List`
      Returns:
        the combined `List`

    - #### addAll

          public static java.util.List addAll(java.util.List target,
                                              java.util.Iterator source)

      Adds all the elements of an `Iterator` to a `List`.

      Parameters:
        `target` - the `List` to which the contents of the source `List` should be added
        `source` - the `List` to be added to the target `List`
      Returns:
        the combined `List`

    - #### addAsList

          public static java.util.List addAsList(java.util.List targetList,
                                                 java.lang.Object sourceList)

      Add either a single object or List to another List. If `sourceList` is a List, adds its items, if it's an Object, just adds the Object itself. Returns the modified `targetList`.

    - #### combineAsLists

          public static java.lang.Object combineAsLists(java.lang.Object one,
                                                        java.lang.Object two)

      Combine two single objects or Lists into one new List, or return a single Object if one argument is single and the other argument is null.

    - #### putCombinedList

          public static java.util.Map putCombinedList(java.util.Map map,
                                                      java.lang.Object key,
                                                      java.lang.Object value)

      Put a value into a Map, combining with any existing value as though combineAsLists() had been called on the existing value and new value.

    - #### setUnion

          public static java.util.List setUnion(java.util.List one,
                                                java.util.List two)

      Creates a new `List` containing all the elements of two `Lists`.

      Parameters:
        `one` - the first `List`
        `two` - the second `List`
      Returns:
        the combined `List`

    - #### addDisjunctionToSet

          public static void addDisjunctionToSet(java.util.List one,
                                                 java.util.List two)

      Adds elements of the second `List` that are missing in the first. If the first or second `List` is `null`, the first will be unchanged.

      Parameters:
        `one` - the first `List`
        `two` - the second `List`

    - #### arrayUnion

          public static java.lang.Object[] arrayUnion(java.lang.Object[] one,
                                                      java.lang.Object[] two)

      Creates a new array containing all the elements of two arrays.

      Parameters:
        `one` - the first array
        `two` - the second array
      Returns:
        the combined array

    - #### setIntersection

          public static java.util.List setIntersection(java.util.Collection one,
                                                       java.util.Collection two)

      Creates a new `List` containing the common elements of two `Collections`.

      Parameters:
        `one` - the first `Collection`
        `two` - the second `Collection`
      Returns:
        the common elements

    - #### mapDisjunction

          public static java.util.Map mapDisjunction(java.util.Map one,
                                                     java.util.Map two)

      Creates a new `Map` containing the key/value pairs whose keys are not present in both `Maps` supplied.

      Parameters:
        `one` - the first `Map`
        `two` - the second `Map`
      Returns:
        the `Map` of the disjunction

    - #### setDisjunction

          public static java.util.List setDisjunction(java.util.Collection one,
                                                      java.util.Collection two)

      Creates a new `List` containing all elements from the first `Collection` that are not in the second `Collection`.

      Parameters:
        `one` - the first `Collection`
        `two` - the second `Collection`
      Returns:
        the `List` of elements present in the first `List` that are not in the second `List`

    - #### enumToList

          public static java.util.List enumToList(java.util.Iterator i)

      Converts an `Iterator` to a `List`.

      Parameters:
        `i` - the `Iterator`
      Returns:
        the `List` of `Iterator` elements

    - #### arrayToList

          public static java.util.List arrayToList(java.lang.Object[] arr,
                                                   int from,
                                                   int length)

      Creates a `List` containing a subset of an array.

      Parameters:
        `arr` - the source array
        `from` - the array index of the first element of the subset
        `length` - the number of elements in the subset
      Returns:
        the `List` of elements from the subset of the source array

    - #### arrayToList

          public static java.util.List arrayToList(java.lang.Object[] arr)

      Creates a `List` from an array.

      Parameters:
        `arr` - the source array
      Returns:
        the `List` of elements from the source array

    - #### listToArray

          public static java.lang.Object[] listToArray(java.util.List list)

      Creates an `Object` array from a `List`.

      Parameters:
        `list` - the source `List`
      Returns:
        the `Object` array containing the elements of the source list

    - #### listToStringArray

          public static java.lang.String[] listToStringArray(java.util.Collection list)

      Creates a `String` array from a `List`.

      Parameters:
        `list` - the source `List`
      Returns:
        the array of `Strings` from the source `List`

    - #### mapToProperties

          public static java.util.Properties mapToProperties(java.util.Map map)

      Creates a `Properties` object from a `Map`. The keys and values in the map must be strings.

      Parameters:
        `map` - the source `Map`
      Returns:
        the `Properties` object containing the keys/values of the source `Map` as properties

    - #### keysAsList

          public static java.util.List keysAsList(java.util.Map map)

      Creates a `List` of the keys from a `Map`.

      Parameters:
        `map` - the source `Map`
      Returns:
        the list of keys from the source `Map`

    - #### makeList

          public static java.util.List makeList(java.lang.Object element)

      Creates a `List` containing one element.

      Parameters:
        `element` - the element
      Returns:
        the `List` containing the element

    - #### makeListIfSingle

          public static java.util.List makeListIfSingle(java.lang.Object obj)

      Creates a `List` containing one element if the element is not a `List`.

      Parameters:
        `obj` - the element
      Returns:
        the `List`

    - #### contains

          public static boolean contains(java.lang.String str,
                                         java.lang.String substr)

      Tests if the specified substring is present in the specified string.

      Parameters:
        `str` - the enclosing string
        `substr` - the substring
      Returns:
        `true` if the substring is contained in the string, `false` otherwise

    - #### jxPathContext

          public static org.apache.commons.jxpath.JXPathContext jxPathContext(java.lang.Object obj)

      Returns JXPathContext in lenient mode

      Parameters:
        `obj` - the context bean
      Returns:
        JXPathContext instance

    - #### nestedGet

          public static java.lang.Object nestedGet(java.lang.Object struct,
                                                   java.lang.String fetch)

      Retrieves a object from a series of nested `Lists` or `Map`. The location of the structure is described by a string of `Map` keys or `List` indexes, separated by periods.

      For example, specifying the string `"dog.2"` would retrieve the object with key `"dog"` from the supplied `Map`; this object should be a `List` - the second element of this `List` would be retrieved and returned.

      Parameters:
        `struct` - the enclosing `List` or `Map`
        `fetch` - the string describing the location of the desired object
      Returns:
        the desired object
      Throws:
        `java.lang.ClassCastException` - if any of the enclosing data structures is neither a `Map` nor a `List`

    - #### buildList

          public static java.util.List buildList(java.lang.Object[] args)

      Creates a `List` containing the passed in objects
      Parameters:
        `args` - any number of arguments of Objects to add to the returned list
      Returns:
        the `List` containing the passed in args

    - #### buildMap

          public static DataTypeMap buildMap(java.lang.Object[] args)

      Creates a `Map` of key/value pairs.
      Parameters:
        `args` - any (even) number of arguments - key then value then key then value etc.
      Returns:
        the `Map` containing the five key/value pairs

    - #### getSingle

          public static java.lang.Object getSingle(java.lang.Object toFetchFrom)

      Retrieves the element of a single element `List`, or the key of a single key/value pair `Map`. Returns `null` if the `toFetchFrom` argument is not a `List` or `Map`, or if `toFetchFrom` does not contain a single element.

      Parameters:
        `toFetchFrom` - the source `List` or `Map`
      Returns:
        the single element or key

    - #### checkSize

          public static int checkSize(java.lang.Object obj)

      Obtains the size of a `Map`, `List` or `String`.

      Parameters:
        `obj` - the `Map`, `List` or `String`
      Returns:
        the size of the `Map`, `List` or `String`, as an `int` or `0` if the object is of another class

    - #### fastDateFormat

          public static java.lang.String fastDateFormat(java.util.Date date)

      Returns a `String` representation of a `Date` object. This method is faster than using the `SimpleDateFormat` methods.

      Parameters:
        `date` - the date to be formatted
      Returns:
        the formatted date as a `String`

    - #### getStackTrace

          public static java.lang.String getStackTrace(java.lang.Throwable t,
                                                       int lineCount)

      Returns the stack trace of a `Throwable` object as a `String` shortened to requested number of lines.

      Parameters:
        `t` - the `Throwable` object
        `lineCount` - number of lines to keep in stack trace `String`
      Returns:
        the stack trace for `t` as a `String`

    - #### getStackTrace

          public static java.lang.String getStackTrace(java.lang.Throwable t)

      Returns the stack trace of a `Throwable` object as a `String`.

      Parameters:
        `t` - the `Throwable` object
      Returns:
        the stack trace for `t` as a `String`

    - #### remapRow

          public static java.util.Map remapRow(java.util.Map row,
                                               java.util.Map remap,
                                               boolean keepNonRemapped)

      Change the keys used in a `Map` to a new set of keys. Given an existing `Map` and a mapping from old keys to new keys, create a new `Map` that uses the new keys.

      Parameters:
        `row` - the row, a `Map`
        `remap` - the map of original to new column names
        `keepNonRemapped` - `boolean` indicating whether to keep data under keys that are not remapped
      Returns:
        the row with remapped keys, or the original row, if `remap` is `null`

    - #### remapRow

          public static java.util.Map remapRow(java.util.Map row,
                                               java.util.Map remap)

      Change the keys used in a `Map` to a new set of keys. Given an existing `Map` and a mapping from old keys to new keys, create a new `Map` that uses the new keys. Columns from the original row that were not remapped will be retained.

      Parameters:
        `row` - the row, a `Map`
        `remap` - the `Map` of original to new column names
      Returns:
        the row with remapped keys, or the original row, if `remap` is `null`

    - #### remapRows

          public static java.util.List remapRows(java.util.List rows,
                                                 java.util.Map remap,
                                                 boolean keepNonRemapped)

      Remap the keys in a `List` of `Maps`.

      Parameters:
        `rows` - the `List` of rows
        `remap` - the `Map` of original to new column names
        `keepNonRemapped` - `boolean` indicating whether to keep data under keys that are not remapped
      Returns:
        the result set with remapped columns, or the original `List`, if `remap` is `null`

    - #### remapRows

          public static java.util.List remapRows(java.util.List rows,
                                                 java.util.Map remap)

      Remap the keys in a `List` of `Maps`. Columns from the original row that were not remapped will be retained.

      Parameters:
        `rows` - the `List` of rows
        `remap` - the `Map` of original to new column names
      Returns:
        the result set with remapped columns, or the original `List`, if `remap` is `null`

    - #### getProperty

          public static java.util.List getProperty(java.util.List rows,
                                                   java.lang.Object column)

      Given a result set, as a `List` of rows, and a column name, returns the `List` of values for that column.

      The result set is represented as a `List` of `Map` objects, with each `Map` representing a row of data. The keys and values in each row correspond to the column names and data, respectively.

      For rows that do not have a value for the specified column, no value will be present in the return list, in other words, an empty object will not be added for that row.

      Parameters:
        `rows` - the `List` of rows
        `column` - the column name or key
      Returns:
        the `List` of values for `column`

    - #### find

          public static java.util.Map find(java.util.List rows,
                                           java.lang.Object propertyName,
                                           java.lang.Object value)

      Given a List of Maps, return the first Map that has a certain value for a key
      Parameters:
        `rows` - the List of Maps
        `propertyName` - the propertyName (key in the Map)
        `value` - expected value of the propertyName (may be null)
      Returns:
        the first matching Map in the List, or null if no matches

    - #### findAll

          public static java.util.List findAll(java.util.List rows,
                                               java.lang.Object propertyName,
                                               java.lang.Object value)

      Given a List of Maps, return all Maps that have a certain value for a key.
      Parameters:
        `rows` - the List of Maps
        `propertyName` - the propertyName (key in the Map)
        `value` - expected value of the propertyName (may be null)
      Returns:
        a List of matching Maps, or an empty list if no matches

    - #### findAll

          public static java.util.List findAll(java.util.List rows,
                                               java.util.Map properties)

      Given a List of Maps, return all Maps that have common key/value pairs with another Map.
      Parameters:
        `rows` - the List of Maps
        `properties` - Map of key/value pairs to match. May not have null values.
      Returns:
        a List of matching Maps, or an empty list if no matches

    - #### toLowerCaseList

          public static java.util.List toLowerCaseList(java.util.List list)

      Given a `List` of strings, returns a new `List` of lower cased strings.

      Parameters:
        `list` - the `List` of strings
      Returns:
        the `List` of lower cased strings

    - #### prettyPrint

          public static java.lang.String prettyPrint(java.lang.Object obj)

      Formats information about an `Object` for viewing or printing as a `String`.

      Parameters:
        `obj` - the `Object` to be formatted for output
      Returns:
        the information `String` to be used for the `Object` in viewing or printing

    - #### addToIntInMap

          public static void addToIntInMap(java.util.Map map,
                                           java.lang.Object key,
                                           int addition)

      Add to the value of an Integer instance stored in the map "map" under key "key".

      If no Integer is currently stored under "key", creates a new Integer with value 0 before adding to it.

      This method exists because of the horrific chain of typecasts otherwise necessary to achieve this effect.

    - #### incrementIntInMap

          public static void incrementIntInMap(java.util.Map map,
                                               java.lang.Object key)

      Add to the value of an Integer instance stored in the map "map" under key "key".

      If no Integer is currently stored under "key", creates a new Integer with value 0 before adding to it.

      This method exists because of the horrific chain of typecasts otherwise necessary to achieve this effect.

    - #### getIntInMap

          public static int getIntInMap(java.util.Map map,
                                        java.lang.Object key)

      Get value of an Integer instance stored in the map "map" under key "key", as the primitive type `int`.

      Returns 0 if no Integer is currently stored in the Map.

    - #### getterName

          public static java.lang.String getterName(java.lang.reflect.Method method)

      Tests if method is getter and returns property name. Returns `null` if provided method is not getter.
      Parameters:
        `method` - `Method` Getter to extract property name.
      Returns:
        `String` Getter property name or `null` if provided method is not getter.

    - #### getClassFields

          public static java.lang.reflect.Field[] getClassFields(java.lang.Class c)

      Returns array of all fields declared in specified class and it's supper classes. Array contains fields with all modifiers. Returns empty array if provided parameter is `null`.
      Parameters:
        `c` - `Class` to be inspected.
      Returns:
        `Field[]` Array of class fields.

    - #### getClassMethods

          public static java.lang.reflect.Method[] getClassMethods(java.lang.Class c)

      Returns array of all methods declared in specified class and it's supper classes. Array contains methods with all modifiers as well as overriden methods from super classes. Returns empty array if provided parameter is `null`.
      Parameters:
        `c` - `Class` to be inspected.
      Returns:
        `Method[]` Array of class methods.

    - #### getPropertyType

          public static java.lang.Class getPropertyType(java.lang.Class c,
                                                        java.lang.String propertyName)
                                                 throws java.beans.IntrospectionException

      Returns type of specified property in provided class. Property name can be composed of sub-properties separated by dot for example:
      - property1 - type of property1 will be returned
      - property1.subproperty - type of sub-property will be returned
      Property will be looked up in specified order:
      1. Among fields declared in specified class
      2. Among methods declared in specified class
      3. Among fields declared in all supper classes
      4. Among methods declared in all supper classes
      Only getter methods are tested: method has no parameters and it's name starts with either "get" or "is".
      Throws `NullPointerException` if either of parameters is null.
      Parameters:
        `c` - `Class` to be inspected.
        `propertyName` - `String` Name of property.
      Returns:
        `Class` Type of property.
      Throws:
        `java.beans.IntrospectionException` - when specified class has no such property.

    - #### getCachedClass

          public static java.lang.Class getCachedClass(java.lang.String className)

      Returns loaded `Class` object for specified name. Cached class is returned if exists otherwise class object is loaded and cached. Returns `null` if class can not be loaded (not in class path).
      Parameters:
        `className` - `String` qualified class name to load.
      Returns:
        `Class` object of `null` if class can not be loaded (not in class path).

    - #### getRealClass

          public static java.lang.Class getRealClass(java.lang.Object bean)

      Checks if provided bean is a proxy and extracts real class. If bean is not a proxy class then its getClass() is returned. Current implementation checks only for Hibernate proxies. Real class is extracted via `realClass = (Class) ((HibernateProxy) bean).getHibernateLazyInitializer().getPersistentClass();`
      Parameters:
        `bean` - `Object`
      Returns:
        `Class`

    - #### getProperties

          public static java.util.Map getProperties(java.lang.Object bean)
                                             throws java.lang.Exception

      Gets the properties for a JavaBean and returns them as a `Map`.

      Parameters:
        `bean` - the JavaBean object
      Returns:
        the JavaBean properties as a `Map`
      Throws:
        `java.lang.Exception`

    - #### getPropertyDescriptors

          public static java.util.Map getPropertyDescriptors(java.lang.Object bean)
                                                      throws java.lang.Exception

      Gets the property descriptors for a JavaBean and returns them as a `Map`.

      Parameters:
        `bean` - the JavaBean object
      Returns:
        the JavaBean property descriptors as a `Map`
      Throws:
        `java.lang.Exception`

    - #### getPropertyDescriptors

          public static java.util.Map getPropertyDescriptors(java.lang.Class beanClass)
                                                      throws java.lang.Exception

      Gets the properties for a JavaBean class through introspection and returns them as a `Map`.

      Removes properties added by byte-code instrumentation:
      - `interceptFieldCallback` property is removed if class implements `net.sf.cglib.transform.impl.InterceptFieldEnabled` interface;
      - `fieldHandler` property is removed if class implements `org.hibernate.bytecode.javassist.FieldHandled` interface;
      Parameters:
        `beanClass` - the JavaBean class
      Returns:
        the JavaBean class's property descriptors as a `Map`
      Throws:
        `java.lang.Exception`

    - #### setProperties

          public static java.lang.Object setProperties(java.util.Map propertyMap,
                                                       java.lang.Object bean)
                                                throws java.lang.Exception

      As the three-argument version of this method, but passes a null dataSource
      Parameters:
        `propertyMap` - a `Map` providing the key-value pairs
        `bean` - the JavaBean object
      Returns:
        the JavaBean properties as a `Map`
      Throws:
        `java.lang.IllegalArgumentException` - if a value provided in the `Map` cannot be converted to an appropriate type
        `java.lang.Exception`

    - #### setProperties

          public static java.lang.Object setProperties(java.util.Map propertyMap,
                                                       java.lang.Object bean,
                                                       DataSource dataSource)
                                                throws java.lang.Exception

      Sets the properties for a JavaBean provided as key-value pairs in a `Map`. This method performs automatic type detection and conversion where possible. Conversion is done via standard bean semantics. Additionally, some standard conversions are performed automatically - for example inbound java.util.Date object will be auto-converted to java.sql.Date or java.sql.Timestamp.

      Keys for which conversion fails or for which there are no corresponding Bean properties are ignored.

      For properties that have primitive value on the target bean (eg properties of `int` type), generally, the static "valueOf(String)" method for the primitive type (eg Boolean.valueOf(String)) will be invoked on the result of "toString()" for the Object being assigned to the primitive property.

      As special cases the null string ("") and the `null` value will become 0 when assigned to numeric primitive types (which cannot be null).

      If the null string is assigned to a non-primitive numeric type (eg Long), the property will be assigned `null`.

      If the target bean property is an enum, this method attempts to set an appropriate value by use of the enum translate strategy set by calling setEnumTranslateStrategy() on the dataSource, if one is provided. See `DataSource.setEnumTranslateStrategy(String)`. If there is no DataSource, or it cannot set a value by cleanly using the enumTranslateStrategy, it will attempt to infer a value by considering the incoming value first as a String to match against the enumerated type's value names, and failing that as an integer to match against the enumerated type's values as an ordinal value. If that fails, it sets the target bean property to null.

      If the target bean property is of Joda-Time type (`org.joda.time.DateTime, DateMidnight, LocalDateTime, LocalDate, LocalTime`), then value is passed to the target type constructor taking `Object` parameter. See Joda documentation for supported inputs.

      If the target bean property is of Java 8 Date/Time API type (`java.time.LocalDate, LocalDateTime, LocalTime`), it is created with `ZoneId.systemDefault()` for `Date` input or attempting `<target-type>.parse(input.toString())` for everything else.

      Otherwise, if the type accepted by a setter method on the target bean cannot accept the type of the value in the propertyMap, this method will attempt type conversion by looking for a constructor on the setter method type that accepts instances of the value's type.

      Also, if a Map value is found in the values of the passed in propertyMap, and the recipient field on the bean is not a Map, this method will treat the target field as a bean, attempting to create the bean via newInstance() and populating it via a recursive call to this method. In other words, this method will auto-create and populate inner beans.

      Similarly if a Collection is found in the propertyMap, it will be applied to a target field of Collection type. If the target field is of an abstract Collection type, the default types used are:

      - Map -> LinkedHashMap
      - List or Collection -> ArrayList
      - Set -> HashSet
      - Queue -> LinkedList
      Java Generics declarations will be automatically used to determine the type of each member of any collection. For example, a bean property declared of type List will be populated automatically with instances of SomeBean.

      A DataSource can be optionally passed as the third argument and can modify some of the above behaviors, including choice of concrete type when populating bean properties that declare only an abstract type or base type - See `DataSource.setProperties(Map, Object)` for details.

      Parameters:
        `propertyMap` - a `Map` providing the key-value pairs
        `bean` - the JavaBean object
        `dataSource` - a context DataSource, if applicable. Can be null
      Returns:
        the JavaBean object
      Throws:
        `java.lang.IllegalArgumentException` - if a value provided in the `Map` cannot be converted to an appropriate type
        `java.lang.Exception`

    - #### setProperties

          public static java.lang.Object setProperties(java.util.Map propertyMap,
                                                       java.lang.Object bean,
                                                       DataSource dataSource,
                                                       DSRequest dsRequest)
                                                throws java.lang.Exception

      This version of setProperties accepts a DSRequest for use as context by the conversion process. In particular, the DSRequest is passed to the getDataSource() method of a `DynamicDSGenerator`.
      Parameters:
        `propertyMap` - a `Map` providing the key-value pairs
        `bean` - the JavaBean object
        `dataSource` - a context DataSource, if applicable
        `dsRequest` - a context DSRequest, if applicable
      Returns:
        the JavaBean object
      Throws:
        `java.lang.IllegalArgumentException` - if a value provided in the `Map` cannot be converted to an appropriate type
        `java.lang.Exception`

    - #### registerTransformer

          public static void registerTransformer(java.lang.Class targetType,
                                                 DataTools.Transformer transformer)

      Register a Transformer. The Transformer interface specifies a single transform() method. The transform() method must be capable of creating an object of type targetType from the input Object. In a simple case, this could typically be done by making use of Object.toString.
      Parameters:
        `targetType` - the Class that this Transformer is capable of transforming to
        `transformer` - the Transformer object itself

    - #### castValue

          public static java.lang.Object castValue(java.lang.Object value,
                                                   java.lang.Class targetType,
                                                   DataSource ds)

      Converts specified `value` to `targetType`.
      Implemented conversion rules:
      - Returns `null` if passed value is `null`
      - If passed value can be cast to `targetType` then same value returned
      - For primitive types returns appropriate object for example:if `targetType` is `Long.TYPE` method returns `Long`
      - If `targetType` is `Boolean` and passed value is instance of `Number` then 0 converted to `false`; any other number converted to `true`
      - If `targetType` is `Boolean` and passed value is instance of `Character` then 'T', 't', 'Y' and 'y' converted to `true`; any other character converted to `false`
      - If `targetType` is `Boolean` and passed value is instance of `String` then "true", "t", "yes" and "y" (ignoring case) converted to `true`; any other string converted to `false`
      - If `targetType` is `Byte` and passed value is instance of `Boolean` then `false` converted to 0; `true` converted to 1
      - If `targetType` is `Byte` and passed value is instance of `Number` then value may be rounded and/or truncated
      - If `targetType` is `Byte` and passed value is instance of `String` then value is parsed with `Byte.valueOf()`
      - If `targetType` is `Short` and passed value is instance of `Boolean` then `false` converted to 0; `true` converted to 1
      - If `targetType` is `Short` and passed value is instance of `Number` then value may be rounded and/or truncated
      - If `targetType` is `Short` and passed value is instance of `String` then value is parsed with `Short.valueOf()`
      - If `targetType` is `Integer` and passed value is instance of `Boolean` then `false` converted to 0; `true` converted to 1
      - If `targetType` is `Integer` and passed value is instance of `Number` then value may be rounded and/or truncated
      - If `targetType` is `Integer` and passed value is instance of `Character` then caracter value is returned
      - If `targetType` is `Integer` and passed value is instance of `String` then value is parsed with `Integer.valueOf()`
      - If `targetType` is `Long` and passed value is instance of `Boolean` then `false` converted to 0; `true` converted to 1
      - If `targetType` is `Long` and passed value is instance of `Number` then value may be rounded and/or truncated
      - If `targetType` is `Long` and passed value is instance of `Character` then caracter value is returned
      - If `targetType` is `Long` and passed value is instance of `String` then value is parsed with `Long.valueOf()`
      - If `targetType` is `Long` and passed value is instance of `Date` then `Date.getTime()` returned
      - If `targetType` is `Float` and passed value is instance of `Boolean` then `false` converted to 0; `true` converted to 1
      - If `targetType` is `Float` and passed value is instance of `Number` then value may be rounded and/or truncated
      - If `targetType` is `Float` and passed value is instance of `Character` then caracter value is returned
      - If `targetType` is `Float` and passed value is instance of `String` then value is parsed with `Float.valueOf()`
      - If `targetType` is `Float` and passed value is instance of `Date` then `Date.getTime()` returned
      - If `targetType` is `Double` and passed value is instance of `Boolean` then `false` converted to 0; `true` converted to 1
      - If `targetType` is `Double` and passed value is instance of `Number` then value may be rounded
      - If `targetType` is `Double` and passed value is instance of `Character` then caracter value is returned
      - If `targetType` is `Double` and passed value is instance of `String` then value is parsed with `Double.valueOf()`
      - If `targetType` is `Double` and passed value is instance of `Date` then `Date.getTime()` returned
      - If `targetType` is `Character` and passed value is instance of `Boolean` then `false` converted to 'f'; `true` converted to 't'
      - If `targetType` is `Character` and passed value is instance of `Number` then character for value code returned (value may be rounded and/or truncated)
      - If `targetType` is `Character` and passed value is instance of `String` then returns first string charater; `(char) 0` returned for empty string
      - If `targetType` is `String` then `value.toString()` returned
      - If `targetType` is `BigInteger` and passed value is instance of `Boolean` then `false` converted to `BigInteger.ZERO`; `true` converted to `BigInteger.ONE`
      - If `targetType` is `BigInteger` and passed value is instance of `Number` then value may be rounded
      - If `targetType` is `BigInteger` and passed value is instance of `Character` then caracter value is returned
      - If `targetType` is `BigInteger` and passed value is instance of `String` then value is parsed
      - If `targetType` is `BigInteger` and passed value is instance of `Date` then `Date.getTime()` returned
      - If `targetType` is `BigDecimal` and passed value is instance of `Boolean` then `false` converted to `BigDecimal.ZERO`; `true` converted to `BigDecimal.ONE`
      - If `targetType` is `BigDecimal` and passed value is instance of `Number` then value converted to `BigDecimal`
      - If `targetType` is `BigDecimal` and passed value is instance of `Character` then caracter value is returned
      - If `targetType` is `BigDecimal` and passed value is instance of `String` then value is parsed
      - If `targetType` is `BigDecimal` and passed value is instance of `Date` then `Date.getTime()` returned
      - If `targetType` is `java.util.Date` and passed value is instance of `Number` then `java.util.Date` created with value as miliseconds (value may be rounded and/or truncated)
      - If `targetType` is `java.util.Date` and passed value is instance of `String` then value is parsed with `DateFormat.getDateTimeInstance()`
      - If `targetType` is `java.sql.Date` and passed value is instance of `Number` then `java.sql.Date` created with value as miliseconds (value may be rounded and/or truncated)
      - If `targetType` is `java.sql.Date` and passed value is instance of `String` then value is parsed with `DateFormat.getDateInstance()`
      - If `targetType` is `java.sql.Date` and passed value is instance of `java.util.Date` then value is converted
      - If `targetType` is `java.sql.Date` and passed value is instance of `java.sql.Time` then value is converted
      - If `targetType` is `java.sql.Date` and passed value is instance of `java.sql.Timestamp` then value is converted
      - If `targetType` is `java.sql.Time` and passed value is instance of `Number` then `java.sql.Time` created with value as miliseconds (value may be rounded and/or truncated)
      - If `targetType` is `java.sql.Time` and passed value is instance of `String` then value is parsed with `DateFormat.getTimeInstance()`
      - If `targetType` is `java.sql.Time` and passed value is instance of `java.util.Date` then value is converted
      - If `targetType` is `java.sql.Time` and passed value is instance of `java.sql.Date` then value is converted
      - If `targetType` is `java.sql.Time` and passed value is instance of `java.sql.Timestamp` then value is converted
      - If `targetType` is `java.sql.Timestamp` and passed value is instance of `Number` then `java.sql.Timestamp` created with value as miliseconds (value may be rounded and/or truncated)
      - If `targetType` is `java.sql.Timestamp` and passed value is instance of `String` then value is parsed with `DateFormat.getDateTimeInstance()`
      - If `targetType` is `java.sql.Timestamp` and passed value is instance of `java.util.Date` then value is converted
      - If `targetType` is `java.sql.Timestamp` and passed value is instance of `java.sql.Date` then value is converted
      - If `targetType` is `java.sql.Timestamp` and passed value is instance of `java.sql.Time` then value is converted
      Parameters:
        `value` - `Object` value to be converted.
        `targetType` - `Class` conversion target type.
        `ds` - `DataSource` initiating conversion.
      Returns:
        `Object` converted value.
      Throws:
        `java.lang.ClassCastException` - if value can not be converted or parsing exception occurs.

    - #### isTextType

          public static boolean isTextType(java.lang.Class clazz)

      Returns `true` if provided class is either assignable to `Character` or assignable to `String` or represents primitive `char` type.
      Parameters:
        `clazz` - `Class` for testing.
      Returns:
        `boolean` `true` if specified class represents class for text; `false` - for all other classes.

    - #### isNumberType

          public static boolean isNumberType(java.lang.Class clazz)

      Returns `true` if provided class is either assignable to `Number` or represents one of primitive number types `byte, short, int, long, float, double`.
      Parameters:
        `clazz` - `Class` for testing.
      Returns:
        `boolean` `true` if specified class represents class for numbers; `false` - for all other classes.

    - #### recursiveFileDelete

          public static boolean recursiveFileDelete(java.io.File file)

      Recursively deletes a directory.
      Parameters:
        `file` - file or directory to delete
      Returns:
        true if successful, false otherwise cannot be converted to an appropriate type

    - #### md5

          public static java.lang.String md5(java.lang.String plaintext)
                                      throws java.lang.Exception

      Returns the hash of the passed-in string, encrypted using the MD5 algorithm
      Parameters:
        `plaintext` - the text to encrypt
      Returns:
        the encrypted (MD5) hash of the supplied plaintext
      Throws:
        `java.lang.Exception`

    - #### sha

          public static java.lang.String sha(java.lang.String plaintext)
                                      throws java.lang.Exception

      Returns the hash of the passed-in string, encrypted using the SHA-1 algorithm
      Parameters:
        `plaintext` - the text to encrypt
      Returns:
        the encrypted (SHA) hash of the supplied plaintext
      Throws:
        `java.lang.Exception`

    - #### bcrypt

          public static java.lang.String bcrypt(java.lang.String plaintext)
                                         throws java.lang.Exception

      Returns the hash of the passed-in string, encrypted using the bcrypt algorithm
      Parameters:
        `plaintext` - the text to encrypt
      Returns:
        the encrypted (bcrypt) hash of the supplied plaintext
      Throws:
        `java.lang.Exception`

    - #### hashValue

          public static java.lang.String hashValue(java.lang.String plaintext)
                                            throws java.lang.Exception

      Returns the hash of the passed-in string, encrypted using the MD5 algorithm
      Parameters:
        `plaintext` - the text to encrypt
      Returns:
        the encrypted (MD5) hash of the supplied plaintext
      Throws:
        `java.lang.Exception`

    - #### hashValue

          public static java.lang.String hashValue(java.lang.String plaintext,
                                                   java.lang.String algorithm)
                                            throws java.lang.Exception

      Returns the hash of the passed-in string, encrypted using the specified algorithm
      Parameters:
        `plaintext` - the text to encrypt
        `algorithm` - the encryption algorithm to use. Search the client-side documentation for "HashAlgorithm" for details.
      Returns:
        the encrypted hash of the supplied plaintext
      Throws:
        `java.lang.Exception`

    - #### formatDate

          public static java.lang.String formatDate(java.lang.String format,
                                                    java.util.Date date)

      Returns the parameter date formatted according to the parameter format string. This method is trivial - it just creates a SimpleDateFormat object and calls its format() method - but it is useful for formatting dates in Velocity expressions
      Parameters:
        `format` - A valid SimpleDateFormat format string
        `date` - The date to format
      Returns:
        The date formatted according to the format string

    - #### getLoggerRepository

          public static java.lang.Object getLoggerRepository()

      Returns log4j `LoggerRepository` instance that was configured from `log4j.isc.config.xml`. Use this method to access log4j loggers for custom categories defined in this file.

      Note: use this method only if log4j logging is used.

      Returns:
        log4j `LoggerRepository` instance if configured, otherwise `null`.

        Note: `Object` return type is used to avoid unnecessary log4j dependency if alternative logging system is used.