/*
* 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.directory.ldapstudio.browser.ui.dnd;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import org.apache.directory.ldapstudio.browser.core.model.ldif.LdifFile;
import org.apache.directory.ldapstudio.browser.core.model.ldif.container.LdifContentRecord;
import org.apache.directory.ldapstudio.browser.core.model.ldif.container.LdifRecord;
import org.apache.directory.ldapstudio.browser.core.model.ldif.parser.LdifParser;
import org.eclipse.swt.dnd.ByteArrayTransfer;
import org.eclipse.swt.dnd.TransferData;
public class LdifContentRecordTransfer extends ByteArrayTransfer
{
private static final String TYPENAME = "org.apache.directory.ldapstudio.browser.ldifContentRecord";
private static final int TYPEID = registerType( TYPENAME );
private static LdifContentRecordTransfer instance = new LdifContentRecordTransfer();
private LdifContentRecordTransfer()
{
}
public static LdifContentRecordTransfer getInstance()
{
return instance;
}
public void javaToNative( Object object, TransferData transferData )
{
if ( object == null || !( object instanceof LdifContentRecord[] ) )
return;
if ( isSupportedType( transferData ) )
{
LdifContentRecord[] records = ( LdifContentRecord[] ) object;
StringBuffer sb = new StringBuffer();
for ( int i = 0; i < records.length; i++ )
{
sb.append( records[i].toFormattedString() );
}
try
{
ByteArrayOutputStream out = new ByteArrayOutputStream();
DataOutputStream writeOut = new DataOutputStream( out );
byte[] bytes = sb.toString().getBytes();
writeOut.writeInt( bytes.length );
writeOut.write( bytes );
byte[] buffer = out.toByteArray();
writeOut.close();
super.javaToNative( buffer, transferData );
}
catch ( IOException e )
{
}
}
}
public Object nativeToJava( TransferData transferData )
{
try
{
if ( isSupportedType( transferData ) )
{
byte[] buffer = ( byte[] ) super.nativeToJava( transferData );
if ( buffer == null )
return null;
LdifContentRecord[] records = null;
try
{
ByteArrayInputStream in = new ByteArrayInputStream( buffer );
DataInputStream readIn = new DataInputStream( in );
if ( readIn.available() > 1 )
{
int size = readIn.readInt();
byte[] bytes = new byte[size];
readIn.read( bytes );
String ldif = new String( bytes );
LdifFile model = new LdifParser().parse( ldif );
LdifRecord[] ldifRecords = model.getRecords();
records = new LdifContentRecord[ldifRecords.length];
for ( int i = 0; i < ldifRecords.length; i++ )
{
if ( ldifRecords[i] instanceof LdifContentRecord )
{
records[i] = ( LdifContentRecord ) ldifRecords[i];
}
else
{
return null;
}
}
}
readIn.close();
}
catch ( IOException ex )
{
return null;
}
return records;
}
}
catch ( Exception e )
{
e.printStackTrace();
}
return null;
}
protected String[] getTypeNames()
{
return new String[]
{ TYPENAME };
}
protected int[] getTypeIds()
{
return new int[]
{ TYPEID };
}
}