Module openj9.dtfj

Package com.ibm.dtfj.corereaders

Class CoreReaderSupport

java.lang.Object

com.ibm.dtfj.corereaders.CoreReaderSupport

All Implemented Interfaces:

ICoreFileReader, ResourceReleaser

Direct Known Subclasses:

NewAixDump, NewElfDump, NewWinDump

public abstract class CoreReaderSupport
extends Object
implements ICoreFileReader

Field Summary

Fields

Modifier and Type	Field	Description
protected J9RASReader	_j9rasReader

Constructor Summary

Constructors

Constructor	Description
CoreReaderSupport(DumpReader reader)

Method Summary

Modifier and Type	Method	Description
protected boolean	coreCheckOffset(long location)
protected long	coreGetPosition()
protected long	coreReadAddress()
protected byte	coreReadByte()
protected byte[]	coreReadBytes(int n)
protected int	coreReadInt()
protected long	coreReadLong()
protected short	coreReadShort()
protected void	coreSeek(long position)
IAbstractAddressSpace	getAddressSpace()	Creates a representation of the address space capable of reading data from memory as a flat address space even though it may be fragmented across regions of several files or transport media.
protected abstract MemoryRange[]	getMemoryRangesAsArray()
protected abstract boolean	is64Bit()
protected abstract boolean	isLittleEndian()
boolean	isTruncated()
void	releaseResources()

Methods declared in class java.lang.Object

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

Methods declared in interface com.ibm.dtfj.corereaders.ICoreFileReader

extract, getAdditionalFileNames

Field Details

_j9rasReader

protected J9RASReader _j9rasReader

Constructor Details

CoreReaderSupport

public CoreReaderSupport(DumpReader reader)

Method Details

getMemoryRangesAsArray

protected abstract MemoryRange[] getMemoryRangesAsArray()

isLittleEndian

protected abstract boolean isLittleEndian()

is64Bit

protected abstract boolean is64Bit()

coreReadInt

protected int coreReadInt()
                   throws IOException

Throws:

IOException

coreSeek

protected void coreSeek(long position)
                 throws IOException

Throws:

IOException

coreReadLong

protected long coreReadLong()
                     throws IOException

Throws:

IOException

coreReadAddress

protected long coreReadAddress()
                        throws IOException

Throws:

IOException

coreReadShort

protected short coreReadShort()
                       throws IOException

Throws:

IOException

coreReadByte

protected byte coreReadByte()
                     throws IOException

Throws:

IOException

coreReadBytes

protected byte[] coreReadBytes(int n)
                        throws IOException

Throws:

IOException

getAddressSpace

public IAbstractAddressSpace getAddressSpace()

Description copied from interface: ICoreFileReader

Creates a representation of the address space capable of reading data from memory as a flat address space even though it may be fragmented across regions of several files or transport media. Note that this method is expected to be called several times and should always return the same instance.

Specified by:

getAddressSpace in interface ICoreFileReader

Returns:

isTruncated

public boolean isTruncated()

Specified by:

isTruncated in interface ICoreFileReader

Returns:

true if the core file is truncated, false otherwise

coreGetPosition

protected long coreGetPosition()
                        throws IOException

Throws:

IOException

coreCheckOffset

protected boolean coreCheckOffset(long location)
                           throws IOException

Throws:

IOException

releaseResources

public void releaseResources()
                      throws IOException

Specified by:

releaseResources in interface ResourceReleaser

Throws:

IOException