org.eclipse.hyades.logging.events.cbe.util
Class EventHelpers

java.lang.Object
  |
  +--org.eclipse.hyades.logging.events.cbe.util.EventHelpers

public class EventHelpers

extends java.lang.Object

Miscellaneous routines to support functions such as validation, serialization and comparison.

Since:

1.0.1

Version:

1.0.1

Author:

Denilson Nastacio, Jason Cornpropst, Scott Brown

Method Summary

static boolean	compareEObject(java.lang.Object obj1, java.lang.Object obj2) Deep-comparison for two EMF objects.
static long	dateToLong(java.lang.String inDate)
static java.lang.String	longToDate(long inDateTime)
static void	serializableRead(org.eclipse.emf.ecore.EObject o, java.io.ObjectInputStream in) Generic serialization routine for EMF object.
static void	serializableWrite(org.eclipse.emf.ecore.EObject o, java.io.ObjectOutputStream out) Generic serialization routine for EMF object.

Methods inherited from class java.lang.Object

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

Method Detail

serializableRead

public static void serializableRead(org.eclipse.emf.ecore.EObject o,
                                    java.io.ObjectInputStream in)
                             throws java.lang.ClassNotFoundException,
                                    java.io.IOException

Generic serialization routine for EMF object.

Parameters:

o - EMF object to be serialized

in - Java IO input stream contained the serialized strem

Throws:

java.lang.ClassNotFoundException - if the class of an object inside the stream cannot be found in the classpath

java.io.IOException - if the input stream cannot be read for whatever reason

serializableWrite

public static void serializableWrite(org.eclipse.emf.ecore.EObject o,
                                     java.io.ObjectOutputStream out)
                              throws java.io.IOException

Generic serialization routine for EMF object.

Parameters:

o - EMF object to be serialized

out - Java IO stream to where the serialized object will be written.

Throws:

java.io.IOException - if the object cannot be written to the output stream for whatever reason.

compareEObject

public static boolean compareEObject(java.lang.Object obj1,
                                     java.lang.Object obj2)

Deep-comparison for two EMF objects.

If the the two EMF objects are of the same type, it traverses their features recursively until a difference is found.

When comparing lists, this method ignores order.

This is a helper for implementing the equals method on EMF objects, where obj1 is the object where equals was called and obj2 is the parameter for that call.

Therefore obj1 can never be null and when obj2 is null, the result is false.

Parameters:

obj1 - first element in the comparison

obj2 - second element in the comparison

Returns:

true if the two objects are identical instancesor false otherwise.

dateToLong

public static long dateToLong(java.lang.String inDate)

Parameters:

inDate - The date in string format (CCYY-MM-DDThh:mm:ssZ)

Returns:

The date in milliseconds since 1970-01-01T00:00:00Z. If the input cannot be converted or the date is older than 1970 then zero will be returned.

Throws:

java.lang.IllegalArgumentException - if the date paremeters does not follow the xsd:dateTime convention.

See Also:

Converts the creationTime from a string in XML Schema datetime format (CCYY-MM-DDThh:mm:ss) to a long representing the milliseconds since 1970-01-01T00:00:00

longToDate

public static java.lang.String longToDate(long inDateTime)

Parameters:

inDateTime - The date in milliseconds since 1970-01-01T00:00:00Z

Returns:

The date in string format (CCYY-MM-DDThh:mm:ssZ)

See Also:

Converts a long representing UTC in milliseconds to the XML Schema datetime format (CCYY-MM-DDThh:mm:ssZ)