org.apache.poi.hwpf.model.ComplexFileTable Maven / Gradle / Ivy
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this work for additional information regarding copyright ownership.
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(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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package org.apache.poi.hwpf.model;
import java.io.IOException;
import org.apache.poi.util.LittleEndian;
import org.apache.poi.hwpf.model.io.*;
public final class ComplexFileTable
{
private static final byte GRPPRL_TYPE = 1;
private static final byte TEXT_PIECE_TABLE_TYPE = 2;
protected TextPieceTable _tpt;
public ComplexFileTable()
{
_tpt = new TextPieceTable();
}
public ComplexFileTable(byte[] documentStream, byte[] tableStream, int offset, int fcMin) throws IOException
{
//skips through the prms before we reach the piece table. These contain data
//for actual fast saved files
while (tableStream[offset] == GRPPRL_TYPE)
{
offset++;
int skip = LittleEndian.getShort(tableStream, offset);
offset += LittleEndian.SHORT_SIZE + skip;
}
if(tableStream[offset] != TEXT_PIECE_TABLE_TYPE)
{
throw new IOException("The text piece table is corrupted");
}
int pieceTableSize = LittleEndian.getInt(tableStream, ++offset);
offset += LittleEndian.INT_SIZE;
_tpt = new TextPieceTable(documentStream, tableStream, offset, pieceTableSize, fcMin);
}
public TextPieceTable getTextPieceTable()
{
return _tpt;
}
public void writeTo(HWPFFileSystem sys)
throws IOException
{
HWPFOutputStream docStream = sys.getStream("WordDocument");
HWPFOutputStream tableStream = sys.getStream("1Table");
tableStream.write(TEXT_PIECE_TABLE_TYPE);
byte[] table = _tpt.writeTo(docStream);
byte[] numHolder = new byte[LittleEndian.INT_SIZE];
LittleEndian.putInt(numHolder, table.length);
tableStream.write(numHolder);
tableStream.write(table);
}
}