sackley 2003/11/10 03:50:03
Added: src/scratchpad/src/org/apache/poi/hwpf/model/hdftypes
ListTables.java
Log:
initial check in
Revision Changes Path
1.1
jakarta-poi/src/scratchpad/src/org/apache/poi/hwpf/model/hdftypes/ListTables.java
Index: ListTables.java
===================================================================
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache POI" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache",
* "Apache POI", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.poi.hwpf.model.hdftypes;
import org.apache.poi.util.LittleEndian;
import org.apache.poi.hwpf.model.io.*;
import java.util.HashMap;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
public class ListTables
{
private static final int LIST_DATA_SIZE = 28;
private static final int LIST_FORMAT_OVERRIDE_SIZE = 16;
HashMap listMap = new HashMap();
HashMap overrideMap = new HashMap();
public ListTables(byte[] tableStream, int lstOffset, int lfoOffset)
{
// get the list data
int length = LittleEndian.getShort(tableStream, lstOffset);
lstOffset += LittleEndian.SHORT_SIZE;
int levelOffset = lstOffset + (length * LIST_DATA_SIZE);
for (int x = 0; x < length; x++)
{
ListData lst = new ListData(tableStream, lstOffset);
listMap.put(new Integer(lst.getLsid()), lst);
lstOffset += LIST_DATA_SIZE;
int num = lst.numLevels();
for (int y = 0; y < num; y++)
{
ListLevel lvl = new ListLevel(tableStream, levelOffset);
lst.setLevel(y, lvl);
levelOffset += lvl.getSizeInBytes();
}
}
// now get the list format overrides. The size is an int unlike the LST size
length = LittleEndian.getInt(tableStream, lfoOffset);
lfoOffset += LittleEndian.INT_SIZE;
int lfolvlOffset = LIST_FORMAT_OVERRIDE_SIZE * length + 4;
for (int x = 0; x < length; x++)
{
ListFormatOverride lfo = new ListFormatOverride(tableStream, lfoOffset);
lfoOffset += LIST_FORMAT_OVERRIDE_SIZE;
int num = lfo.numOverrides();
for (int y = 0; y < num; y++)
{
ListFormatOverrideLevel lfolvl = new ListFormatOverrideLevel(tableStream,
lfolvlOffset);
lfo.setOverride(y, lfolvl);
lfolvlOffset += lfolvl.getSizeInBytes();
}
overrideMap.put(new Integer(lfo.getLsid()), lfo);
}
}
public void writeListDataTo(HWPFOutputStream tableStream)
throws IOException
{
Integer[] intList = (Integer[])listMap.keySet().toArray(new Integer[0]);
// use this stream as a buffer for the levels since their size varies.
ByteArrayOutputStream levelBuf = new ByteArrayOutputStream();
// use a byte array for the lists because we know their size.
byte[] listBuf = new byte[intList.length * LIST_DATA_SIZE];
for (int x = 0; x < intList.length; x++)
{
ListData lst = (ListData)listMap.get(intList[x]);
tableStream.write(lst.toByteArray());
ListLevel[] lvls = lst.getLevels();
for (int y = 0; y < lvls.length; y++)
{
levelBuf.write(lvls[y].toByteArray());
}
}
tableStream.write(levelBuf.toByteArray());
}
public void writeListOverridesTo(HWPFOutputStream tableStream)
throws IOException
{
Integer[] intList = (Integer[])overrideMap.keySet().toArray(new Integer[0]);
// use this stream as a buffer for the levels since their size varies.
ByteArrayOutputStream levelBuf = new ByteArrayOutputStream();
// use a byte array for the lists because we know their size.
byte[] overrideBuf = new byte[intList.length * LIST_FORMAT_OVERRIDE_SIZE];
for (int x = 0; x < intList.length; x++)
{
ListFormatOverride lfo = (ListFormatOverride)overrideMap.get(intList[x]);
tableStream.write(lfo.toByteArray());
ListFormatOverrideLevel[] lfolvls = lfo.getLevelOverrides();
for (int y = 0; y < lfolvls.length; y++)
{
levelBuf.write(lfolvls[y].toByteArray());
}
}
tableStream.write(levelBuf.toByteArray());
}
}
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