org.apache.poi.ddf.AbstractEscherOptRecord Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of poi Show documentation
Show all versions of poi Show documentation
Apache POI - Java API To Access Microsoft Format Files
/* ====================================================================
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
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
the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==================================================================== */
package org.apache.poi.ddf;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import org.apache.poi.util.HexDump;
import org.apache.poi.util.LittleEndian;
/**
* Common abstract class for {@link EscherOptRecord} and
* {@link EscherTertiaryOptRecord}
*/
public abstract class AbstractEscherOptRecord extends EscherRecord
{
private List properties = new ArrayList();
/**
* Add a property to this record.
*
* @param prop the escher property to add
*/
public void addEscherProperty( EscherProperty prop )
{
properties.add( prop );
}
@Override
public int fillFields( byte[] data, int offset,
EscherRecordFactory recordFactory )
{
int bytesRemaining = readHeader( data, offset );
short propertiesCount = readInstance( data, offset );
int pos = offset + 8;
EscherPropertyFactory f = new EscherPropertyFactory();
properties = f.createProperties( data, pos, propertiesCount );
return bytesRemaining + 8;
}
/**
* The list of properties stored by this record.
*
* @return the list of properties
*/
public List getEscherProperties()
{
return properties;
}
/**
* The list of properties stored by this record.
*
* @param index the ordinal index of the property
* @return the escher property
*/
public EscherProperty getEscherProperty( int index )
{
return properties.get( index );
}
private int getPropertiesSize()
{
int totalSize = 0;
for ( EscherProperty property : properties )
{
totalSize += property.getPropertySize();
}
return totalSize;
}
@Override
public int getRecordSize()
{
return 8 + getPropertiesSize();
}
public T lookup( int propId )
{
for ( EscherProperty prop : properties )
{
if ( prop.getPropertyNumber() == propId )
{
@SuppressWarnings( "unchecked" )
final T result = (T) prop;
return result;
}
}
return null;
}
@Override
public int serialize( int offset, byte[] data,
EscherSerializationListener listener )
{
listener.beforeRecordSerialize( offset, getRecordId(), this );
LittleEndian.putShort( data, offset, getOptions() );
LittleEndian.putShort( data, offset + 2, getRecordId() );
LittleEndian.putInt( data, offset + 4, getPropertiesSize() );
int pos = offset + 8;
for ( EscherProperty property : properties )
{
pos += property.serializeSimplePart( data, pos );
}
for ( EscherProperty property : properties )
{
pos += property.serializeComplexPart( data, pos );
}
listener.afterRecordSerialize( pos, getRecordId(), pos - offset, this );
return pos - offset;
}
/**
* Records should be sorted by property number before being stored.
*/
public void sortProperties()
{
Collections.sort( properties, new Comparator()
{
@Override
public int compare( EscherProperty p1, EscherProperty p2 )
{
short s1 = p1.getPropertyNumber();
short s2 = p2.getPropertyNumber();
return s1 < s2 ? -1 : s1 == s2 ? 0 : 1;
}
} );
}
/**
* Set an escher property. If a property with given propId already
exists it is replaced.
*
* @param value the property to set.
*/
public void setEscherProperty(EscherProperty value){
for ( Iterator iterator =
properties.iterator(); iterator.hasNext(); ) {
EscherProperty prop = iterator.next();
if (prop.getId() == value.getId()){
iterator.remove();
}
}
properties.add( value );
sortProperties();
}
public void removeEscherProperty(int num){
for ( Iterator iterator = getEscherProperties().iterator(); iterator.hasNext(); ) {
EscherProperty prop = iterator.next();
if (prop.getPropertyNumber() == num){
iterator.remove();
}
}
}
/**
* Retrieve the string representation of this record.
*/
@Override
public String toString()
{
String nl = System.getProperty( "line.separator" );
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append( getClass().getName() );
stringBuilder.append( ":" );
stringBuilder.append( nl );
stringBuilder.append( " isContainer: " );
stringBuilder.append( isContainerRecord() );
stringBuilder.append( nl );
stringBuilder.append( " version: 0x" );
stringBuilder.append( HexDump.toHex( getVersion() ) );
stringBuilder.append( nl );
stringBuilder.append( " instance: 0x" );
stringBuilder.append( HexDump.toHex( getInstance() ) );
stringBuilder.append( nl );
stringBuilder.append( " recordId: 0x" );
stringBuilder.append( HexDump.toHex( getRecordId() ) );
stringBuilder.append( nl );
stringBuilder.append( " numchildren: " );
stringBuilder.append( getChildRecords().size() );
stringBuilder.append( nl );
stringBuilder.append( " properties:" );
stringBuilder.append( nl );
for ( EscherProperty property : properties )
{
stringBuilder.append(" ").append(property.toString()).append(nl);
}
return stringBuilder.toString();
}
@Override
public String toXml(String tab) {
StringBuilder builder = new StringBuilder();
builder.append(tab).append(formatXmlRecordHeader(getClass().getSimpleName(),
HexDump.toHex(getRecordId()), HexDump.toHex(getVersion()), HexDump.toHex(getInstance())));
for (EscherProperty property: getEscherProperties()){
builder.append(property.toXml(tab+"\t"));
}
builder.append(tab).append("\n");
return builder.toString();
}
}