org.apache.poi.poifs.poibrowser.DocumentDescriptor Maven / Gradle / Ivy
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this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
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http://www.apache.org/licenses/LICENSE-2.0
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See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package org.apache.poi.poifs.poibrowser;
import java.io.*;
import org.apache.poi.poifs.filesystem.*;
/**
* Describes the most important (whatever that is) features of a
* {@link POIFSDocument}.
*
* @author Rainer Klute <[email protected]>
*/
public class DocumentDescriptor
{
String name;
POIFSDocumentPath path;
DocumentInputStream stream;
int size;
byte[] bytes;
/**
* Creates a {@link DocumentDescriptor}.
*
* @param name The stream's name.
*
* @param path The stream's path in the POI filesystem hierarchy.
*
* @param stream The stream.
*
* @param nrOfBytes The maximum number of bytes to display in a
* dump starting at the beginning of the stream.
*/
public DocumentDescriptor(final String name,
final POIFSDocumentPath path,
final DocumentInputStream stream,
final int nrOfBytes)
{
this.name = name;
this.path = path;
this.stream = stream;
try
{
size = stream.available();
if (stream.markSupported())
{
stream.mark(nrOfBytes);
final byte[] b = new byte[nrOfBytes];
final int read = stream.read(b, 0, Math.min(size, b.length));
bytes = new byte[read];
System.arraycopy(b, 0, bytes, 0, read);
stream.reset();
}
}
catch (IOException ex)
{
System.out.println(ex);
}
}
}