org.apache.poi.openxml4j.opc

Class ZipPackagePart

java.lang.Object

org.apache.poi.openxml4j.opc.PackagePart

org.apache.poi.openxml4j.opc.ZipPackagePart

All Implemented Interfaces:

RelationshipSource

public class ZipPackagePart
extends PackagePart

Zip implementation of a PackagePart.

Version:

1.0

Author:

Julien Chable

See Also:

PackagePart

Field Summary

Fields inherited from class org.apache.poi.openxml4j.opc.PackagePart

_container, _contentType, _partName

Constructor Summary

Constructors

Constructor and Description
ZipPackagePart(OPCPackage container, PackagePartName partName, String contentType) Constructor.
ZipPackagePart(OPCPackage container, ZipEntry zipEntry, PackagePartName partName, String contentType) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Close this part : flush this part, close the input stream and output stream.
void	flush() Flush the content of this part.
protected InputStream	getInputStreamImpl() Implementation of the getInputStream() which return the inputStream of this part zip entry.
protected OutputStream	getOutputStreamImpl() Implementation of the getOutputStream().
long	getSize()
ZipEntry	getZipArchive() Get the zip entry of this part.
boolean	load(InputStream ios) Load the content of this part.
boolean	save(OutputStream os) Save the content of this part and the associated relationships part (if this part own at least one relationship) into the specified output stream.

Methods inherited from class org.apache.poi.openxml4j.opc.PackagePart

addExternalRelationship, addExternalRelationship, addRelationship, addRelationship, addRelationship, addRelationship, clear, clearRelationships, getContentType, getInputStream, getOutputStream, getPackage, getPartName, getRelatedPart, getRelationship, getRelationships, getRelationshipsByType, hasRelationships, isDeleted, isRelationshipExists, isRelationshipPart, removeRelationship, setContentType, setDeleted, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ZipPackagePart

public ZipPackagePart(OPCPackage container,
              PackagePartName partName,
              String contentType)
               throws InvalidFormatException

Constructor.

Parameters:

container - The container package.

partName - Part name.

contentType - Content type.

Throws:

InvalidFormatException - Throws if the content of this part invalid.

ZipPackagePart

public ZipPackagePart(OPCPackage container,
              ZipEntry zipEntry,
              PackagePartName partName,
              String contentType)
               throws InvalidFormatException

Constructor.

Parameters:

container - The container package.

zipEntry - The zip entry corresponding to this part.

partName - The part name.

contentType - Content type.

Throws:

InvalidFormatException - Throws if the content of this part is invalid.

Method Detail

getZipArchive

public ZipEntry getZipArchive()

Get the zip entry of this part.

Returns:

The zip entry in the zip structure coresponding to this part.

getInputStreamImpl

protected InputStream getInputStreamImpl()
                                  throws IOException

Implementation of the getInputStream() which return the inputStream of this part zip entry.

Specified by:

getInputStreamImpl in class PackagePart

Returns:

Input stream of this part zip entry.

Throws:

IOException - Throws if an IO Exception occur in the implementation method.

getOutputStreamImpl

protected OutputStream getOutputStreamImpl()

Implementation of the getOutputStream(). Return null. Normally will never be called since the MemoryPackage is use instead.

Specified by:

getOutputStreamImpl in class PackagePart

Returns:

null

getSize

public long getSize()

Overrides:

getSize in class PackagePart

Returns:

The length of the part in bytes, or -1 if not known

save

public boolean save(OutputStream os)
             throws OpenXML4JException

Description copied from class: PackagePart

Save the content of this part and the associated relationships part (if this part own at least one relationship) into the specified output stream.

Specified by:

save in class PackagePart

Parameters:

os - Output stream to save this part.

Throws:

OpenXML4JException - If any exception occur.

load

public boolean load(InputStream ios)

Description copied from class: PackagePart

Load the content of this part.

Specified by:

load in class PackagePart

Parameters:

ios - The input stream of the content to load.

Returns:

true if the content has been successfully loaded, else false.

close

public void close()

Description copied from class: PackagePart

Close this part : flush this part, close the input stream and output stream. After this method call, the part must be available for packaging.

Specified by:

close in class PackagePart

flush

public void flush()

Description copied from class: PackagePart

Flush the content of this part. If the input stream and/or output stream as in a waiting state to read or write, the must to empty their respective buffer.

Specified by:

flush in class PackagePart