patterntesting.runtime.util
Class ObjectInspector

java.lang.Object
  patterntesting.runtime.util.ObjectInspector

public final class ObjectInspector
extends Object

This class lets you examine an object and dump its internal attributes. It was introduced to find some secrets of IBM's classloader.

Since:

1.2.10-YEARS (24.01.2012)

Author:

oboehm

Field Summary

static String

NOTHING_FOUND The value for "nothing found".

Constructor Summary

ObjectInspector(Object obj)
Instantiates a new object inspector.

Method Summary

void	dump(Writer writer) Dump the inspected class.
String	findValue(Object value) Find the value in of the attributes of the inspected object.
Collection<Field>	getAllFields() Gets all fields of the wrapped object.
Class<?>	getType() Gets the type (class) of the stored object.
boolean	isArrayType() Checks if the wrapped object is an array type.
static boolean	isArrayType(Object obj) Checks if the given object is an array.
boolean	isComplexType() Checks if the wrapped object is complex type.
static boolean	isComplexType(Object obj) Checks if the given object is of complex type.
boolean	isIterable() Checks if the type of the wrapped object could be iterated.
static boolean	isIterable(Object obj) Checks if the type of the given object could be iterated.
String	toLongString() To long string.
String	toString() Dumps all attributes of the inspected object in the form attribute=value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NOTHING_FOUND

public static final String NOTHING_FOUND

The value for "nothing found".

Constructor Detail

ObjectInspector

public ObjectInspector(Object obj)

Instantiates a new object inspector.

Parameters:

obj - the object to be inspected

Method Detail

getType

public Class<?> getType()

Gets the type (class) of the stored object.

Returns:

the type

findValue

public String findValue(Object value)
                 throws ValueNotFoundException

Find the value in of the attributes of the inspected object. You can give a Pattern as parameter if you want to use wildcards for the search.

Parameters:

value - the value or the pattern you want to look for

Returns:

the string

Throws:

ValueNotFoundException - the value not found exception

getAllFields

public Collection<Field> getAllFields()

Gets all fields of the wrapped object. Not only the (public) class fields but also the private and protected fields of the superclass.

Returns:

the all fields

dump

public void dump(Writer writer)
          throws IOException

Dump the inspected class.

Parameters:

writer - the writer

Throws:

IOException - Signals that an I/O exception has occurred.

isComplexType

public boolean isComplexType()

Checks if the wrapped object is complex type.

Returns:

true, if is complex type

isComplexType

public static boolean isComplexType(Object obj)

Checks if the given object is of complex type. These are all types which

• are not a primitive type (like int, char, ...)
• are not a String class
• are not of subtype Numer (like Long, Short, ...)

Parameters:

obj - the obj

Returns:

true, if is complex type

isArrayType

public boolean isArrayType()

Checks if the wrapped object is an array type.

Returns:

true, if is array type

isArrayType

public static boolean isArrayType(Object obj)

Checks if the given object is an array.

Parameters:

obj - the obj

Returns:

true, if is array type

isIterable

public boolean isIterable()

Checks if the type of the wrapped object could be iterated. This is the case e.g. for Collections and its subclasses.

Returns:

true, if is iterable

isIterable

public static boolean isIterable(Object obj)

Checks if the type of the given object could be iterated. This is the case e.g. for Collections and its subclasses.

Parameters:

obj - the object

Returns:

true, if is iterable

toString

public String toString()

Dumps all attributes of the inspected object in the form attribute=value.

Overrides:

toString in class Object

Returns:

the string

See Also:

Object.toString()

toLongString

public String toLongString()

To long string.

Returns:

the string