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New method toInputStream() added.

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git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353331 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Rainer Klute 2003-09-01 18:51:08 +00:00
parent 5b6df1dd86
commit 0f1a7a40b6
1 changed files with 30 additions and 0 deletions
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30
src/java/org/apache/poi/hpsf/MutablePropertySet.java
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@ -54,10 +54,14 @@
*/
package org.apache.poi.hpsf;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.LinkedList;
import java.util.ListIterator;
import org.apache.poi.util.LittleEndian;
import org.apache.poi.util.LittleEndianConsts;
@ -240,4 +244,30 @@ public class MutablePropertySet extends PropertySet
}
}
/**
* <p>Returns the contents of this property set stream as an input stream.
* The latter can be used for example to write the property set into a POIFS
* document. The input stream represents a snapshot of the property set.
* If the latter is modified while the input stream is still being
* read, the modifications will not be reflected in the input stream but in
* the {@link MutablePropertySet} only.</p>
*
* @return the contents of this property set stream
*
* @throws WritingNotSupportedException if HPSF does not yet support writing
* of a property's variant type.
* @throws IOException if an I/O exception occurs.
*/
public InputStream toInputStream()
throws IOException, WritingNotSupportedException
{
final ByteArrayOutputStream psStream = new ByteArrayOutputStream();
write(psStream);
psStream.close();
final byte[] streamData = psStream.toByteArray();
return new ByteArrayInputStream(streamData);
}
}