Overview  Package   Class  Tree  Deprecated  Index  Help 
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES    
SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD

org.apache.poi.openxml4j.util
Class ZipInputStreamZipEntrySource

java.lang.Object
  extended by org.apache.poi.openxml4j.util.ZipInputStreamZipEntrySource
All Implemented Interfaces:
java.io.Closeable, ZipEntrySource
public class ZipInputStreamZipEntrySource
extends java.lang.Object
implements ZipEntrySource

Provides a way to get at all the ZipEntries from a ZipInputStream, as many times as required. Allows a ZipInputStream to be treated much like a ZipFile, for a price in terms of memory. Be sure to call close() as soon as you're done, to free up that memory!

Nested Class Summary
static class ZipInputStreamZipEntrySource.FakeZipEntry
          So we can close the real zip entry and still effectively work with it.
 
Constructor Summary
ZipInputStreamZipEntrySource(ZipSecureFile.ThresholdInputStream inp)
          Reads all the entries from the ZipInputStream into memory, and closes the source stream.
 
Method Summary
 void close()
          Indicates we are done with reading, and resources may be freed
 java.util.Enumeration<? extends java.util.zip.ZipEntry> getEntries()
          Returns an Enumeration of all the Entries
 java.io.InputStream getInputStream(java.util.zip.ZipEntry zipEntry)
          Returns an InputStream of the decompressed data that makes up the entry
 boolean isClosed()
          Has close been called already?
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ZipInputStreamZipEntrySource

public ZipInputStreamZipEntrySource(ZipSecureFile.ThresholdInputStream inp)
                             throws java.io.IOException
Reads all the entries from the ZipInputStream into memory, and closes the source stream. We'll then eat lots of memory, but be able to work with the entries at-will.

Throws:
java.io.IOException
Method Detail

getEntries

public java.util.Enumeration<? extends java.util.zip.ZipEntry> getEntries()
Description copied from interface: ZipEntrySource
Returns an Enumeration of all the Entries

Specified by:
getEntries in interface ZipEntrySource

getInputStream

public java.io.InputStream getInputStream(java.util.zip.ZipEntry zipEntry)
Description copied from interface: ZipEntrySource
Returns an InputStream of the decompressed data that makes up the entry

Specified by:
getInputStream in interface ZipEntrySource

close

public void close()
Description copied from interface: ZipEntrySource
Indicates we are done with reading, and resources may be freed

Specified by:
close in interface java.io.Closeable
Specified by:
close in interface ZipEntrySource

isClosed

public boolean isClosed()
Description copied from interface: ZipEntrySource
Has close been called already?

Specified by:
isClosed in interface ZipEntrySource
Overview  Package   Class  Tree  Deprecated  Index  Help 
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES    
SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD