268 lines
8.3 KiB
Java
268 lines
8.3 KiB
Java
|
|
/* ====================================================================
|
|
* The Apache Software License, Version 1.1
|
|
*
|
|
* Copyright (c) 2002 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 apache@apache.org.
|
|
*
|
|
* 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.hssf.record;
|
|
|
|
import java.util.ArrayList;
|
|
|
|
import org.apache.poi.util.LittleEndian;
|
|
|
|
/**
|
|
* Title: Continue Record - Helper class used primarily for SST Records <P>
|
|
* Description: handles overflow for prior record in the input
|
|
* stream; content is tailored to that prior record<P>
|
|
* @author Marc Johnson (mjohnson at apache dot org)
|
|
* @author Andrew C. Oliver (acoliver at apache dot org)
|
|
* @version 2.0-pre
|
|
*/
|
|
|
|
public class ContinueRecord
|
|
extends Record
|
|
{
|
|
public final static short sid = 0x003C;
|
|
private byte[] field_1_data;
|
|
|
|
/**
|
|
* default constructor
|
|
*/
|
|
|
|
public ContinueRecord()
|
|
{
|
|
}
|
|
|
|
/**
|
|
* Main constructor -- kinda dummy because we don't validate or fill fields
|
|
*
|
|
* @param id record id
|
|
* @param size record size
|
|
* @param data raw data
|
|
*/
|
|
|
|
public ContinueRecord(short id, short size, byte [] data)
|
|
{
|
|
super(id, size, data);
|
|
}
|
|
|
|
/**
|
|
* Main constructor -- kinda dummy because we don't validate or fill fields
|
|
*
|
|
* @param id record id
|
|
* @param size record size
|
|
* @param data raw data
|
|
* @param offset of the record's data
|
|
*/
|
|
|
|
public ContinueRecord(short id, short size, byte [] data, int offset)
|
|
{
|
|
super(id, size, data, offset);
|
|
}
|
|
|
|
/**
|
|
* USE ONLY within "processContinue"
|
|
*/
|
|
|
|
public byte [] serialize()
|
|
{
|
|
byte[] retval = new byte[ field_1_data.length + 4 ];
|
|
|
|
LittleEndian.putShort(retval, 0, sid);
|
|
LittleEndian.putShort(retval, 2, ( short ) field_1_data.length);
|
|
System.arraycopy(field_1_data, 0, retval, 4, field_1_data.length);
|
|
return retval;
|
|
}
|
|
|
|
public int serialize(int offset, byte [] data)
|
|
{
|
|
throw new RecordFormatException(
|
|
"You're not supposed to serialize Continue records like this directly");
|
|
}
|
|
|
|
/**
|
|
* set the data for continuation
|
|
* @param data - a byte array containing all of the continued data
|
|
*/
|
|
|
|
public void setData(byte [] data)
|
|
{
|
|
field_1_data = data;
|
|
}
|
|
|
|
/**
|
|
* get the data for continuation
|
|
* @return byte array containing all of the continued data
|
|
*/
|
|
|
|
public byte [] getData()
|
|
{
|
|
return field_1_data;
|
|
}
|
|
|
|
/**
|
|
* Use to serialize records that are too big for their britches (>8228..why 8228 and
|
|
* not 8192 aka 8k? Those folks in washington don't ususally make sense...
|
|
* or at least to anyone outside fo marketing...
|
|
* @deprecated handle this within the record...this didn't actualyl work out
|
|
*/
|
|
|
|
public static byte [] processContinue(byte [] data)
|
|
{ // could do this recursively but that seems hard to debug
|
|
|
|
// how many continue records do we need
|
|
// System.out.println("In ProcessContinue");
|
|
int records = (data.length / 8214); // we've a 1 offset but we're also off by one due to rounding...so it balances out
|
|
int offset = 8214;
|
|
|
|
// System.out.println("we have "+records+" continue records to process");
|
|
ArrayList crs = new ArrayList(records);
|
|
int totalsize = 8214;
|
|
byte[] retval = null;
|
|
|
|
for (int cr = 0; cr < records; cr++)
|
|
{
|
|
ContinueRecord contrec = new ContinueRecord();
|
|
int arraysize = Math.min((8214 - 4), (data.length - offset));
|
|
byte[] crdata = new byte[ arraysize ];
|
|
|
|
System.arraycopy(data, offset, crdata, 0, arraysize);
|
|
|
|
// System.out.println("arraycopy(data,"+offset+",crdata,"+0+","+arraysize+");");
|
|
offset += crdata.length;
|
|
contrec.setData(crdata);
|
|
crs.add(contrec.serialize());
|
|
}
|
|
for (int cr = 0; cr < records; cr++)
|
|
{
|
|
totalsize += (( byte [] ) crs.get(cr)).length;
|
|
}
|
|
|
|
// System.out.println("totalsize="+totalsize);
|
|
retval = new byte[ totalsize ];
|
|
offset = 8214;
|
|
System.arraycopy(data, 0, retval, 0, 8214);
|
|
for (int cr = 0; cr < records; cr++)
|
|
{
|
|
byte[] src = ( byte [] ) crs.get(cr);
|
|
|
|
System.arraycopy(src, 0, retval, offset, src.length);
|
|
|
|
// System.out.println("arraycopy(src,"+0+",retval,"+offset+","+src.length+");");
|
|
offset += src.length;
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
/**
|
|
* Fill the fields. Only thing is, this record has no fields --
|
|
*
|
|
* @param ignored_parm1 Ignored
|
|
* @param ignored_parm2 Ignored
|
|
*/
|
|
|
|
protected void fillFields(byte [] ignored_parm1, short ignored_parm2)
|
|
{
|
|
|
|
// throw new RecordFormatException("Are you crazy? Don't fill a continue record");
|
|
// do nothing
|
|
}
|
|
|
|
/**
|
|
* Make sure we have a good id
|
|
*
|
|
* @param id the alleged id
|
|
*/
|
|
|
|
protected void validateSid(short id)
|
|
{
|
|
if (id != ContinueRecord.sid)
|
|
{
|
|
throw new RecordFormatException("Not a Continue Record");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Debugging toString
|
|
*
|
|
* @return string representation
|
|
*/
|
|
|
|
public String toString()
|
|
{
|
|
StringBuffer buffer = new StringBuffer();
|
|
|
|
buffer.append("[CONTINUE RECORD]\n");
|
|
buffer.append(" .id = ").append(Integer.toHexString(sid))
|
|
.append("\n");
|
|
buffer.append("[/CONTINUE RECORD]\n");
|
|
return buffer.toString();
|
|
}
|
|
|
|
public short getSid()
|
|
{
|
|
return this.sid;
|
|
}
|
|
|
|
/**
|
|
* Fill the fields. Only thing is, this record has no fields --
|
|
*
|
|
* @param ignored_parm1 Ignored
|
|
* @param ignored_parm2 Ignored
|
|
* @param ignored_parm3 Ignored
|
|
*/
|
|
|
|
protected void fillFields(byte [] ignored_parm1, short ignored_parm2, int ignored_parm3)
|
|
{
|
|
}
|
|
}
|