edu.umd.cs.findbugs.classfile.impl

Class DelegatingCodeBaseEntry

java.lang.Object

edu.umd.cs.findbugs.classfile.impl.DelegatingCodeBaseEntry

All Implemented Interfaces:

ICodeBaseEntry

public class DelegatingCodeBaseEntry
extends java.lang.Object
implements ICodeBaseEntry

Implementation of ICodeBaseEntry that delegates to another codebase entry. This is needed for codebase entries in nested zipfiles, which are implemented using a private zipfile codebase.

Author:

David Hovemeyer

Constructor Summary

Constructors

Constructor and Description
DelegatingCodeBaseEntry(ICodeBase frontEndCodeBase, ICodeBaseEntry delegateCodeBaseEntry)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
ClassDescriptor	getClassDescriptor() Return the ClassDescriptor of the class resource accessed by this codebase entry.
ICodeBase	getCodeBase() Get the codebase this codebase entry belongs to.
int	getNumBytes() Get the number of bytes in the resource.
java.lang.String	getResourceName() Get the name of the resource.
int	hashCode()
java.io.InputStream	openResource() Open an input stream reading from the resource.
void	overrideResourceName(java.lang.String resourceName) Override the resource name of this codebase entry.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DelegatingCodeBaseEntry

public DelegatingCodeBaseEntry(ICodeBase frontEndCodeBase,
                               ICodeBaseEntry delegateCodeBaseEntry)

Method Detail

getNumBytes

public int getNumBytes()

Description copied from interface: ICodeBaseEntry

Get the number of bytes in the resource. Returns <0 if the number of bytes is not known.

Specified by:

getNumBytes in interface ICodeBaseEntry

Returns:

number of bytes in the resource, or <0 if not known.

getResourceName

public java.lang.String getResourceName()

Description copied from interface: ICodeBaseEntry

Get the name of the resource.

Specified by:

getResourceName in interface ICodeBaseEntry

Returns:

the name of the resource

openResource

public java.io.InputStream openResource()
                                 throws java.io.IOException

Description copied from interface: ICodeBaseEntry

Open an input stream reading from the resource.

Specified by:

openResource in interface ICodeBaseEntry

Returns:

InputStream reading from the resource.

Throws:

java.io.IOException - if an error occurs reading from the resource

getCodeBase

public ICodeBase getCodeBase()

Description copied from interface: ICodeBaseEntry

Get the codebase this codebase entry belongs to.

Specified by:

getCodeBase in interface ICodeBaseEntry

Returns:

the codebase this codebase entry belongs to

getClassDescriptor

public ClassDescriptor getClassDescriptor()
                                   throws ResourceNotFoundException,
                                          InvalidClassFileFormatException

Description copied from interface: ICodeBaseEntry

Return the ClassDescriptor of the class resource accessed by this codebase entry. Do not call this method unless ClassDescriptor.isClassResource() returns true. This method may require the class data to be loaded in order to determine the class.

Specified by:

getClassDescriptor in interface ICodeBaseEntry

Returns:

ClassDescriptor of this entry

Throws:

ResourceNotFoundException - InvalidClassFileFormatException if the codebase entry does not reference a valid classfile

InvalidClassFileFormatException

overrideResourceName

public void overrideResourceName(java.lang.String resourceName)

Description copied from interface: ICodeBaseEntry

Override the resource name of this codebase entry.

Specified by:

overrideResourceName in interface ICodeBaseEntry

Parameters:

resourceName - the new resource name

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object