| /* |
| * 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.studio.ldapbrowser.common.dnd; |
| |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.DataInputStream; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.directory.studio.ldapbrowser.common.BrowserCommonConstants; |
| import org.apache.directory.studio.ldapbrowser.core.BrowserConnectionManager; |
| import org.apache.directory.studio.ldapbrowser.core.BrowserCorePlugin; |
| import org.apache.directory.studio.ldapbrowser.core.model.IBrowserConnection; |
| import org.apache.directory.studio.ldapbrowser.core.model.ISearch; |
| import org.eclipse.swt.dnd.ByteArrayTransfer; |
| import org.eclipse.swt.dnd.Transfer; |
| import org.eclipse.swt.dnd.TransferData; |
| |
| |
| /** |
| * A {@link Transfer} that could be used to transfer {@link ISearch} objects. |
| * Note that only the connection id and search name is converted to a platform specific |
| * representation, not the complete object. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class SearchTransfer extends ByteArrayTransfer |
| { |
| |
| /** The Constant TYPENAME. */ |
| private static final String TYPENAME = BrowserCommonConstants.DND_SEARCH_TRANSFER; |
| |
| /** The Constant TYPEID. */ |
| private static final int TYPEID = registerType( TYPENAME ); |
| |
| /** The instance. */ |
| private static SearchTransfer instance = new SearchTransfer(); |
| |
| |
| /** |
| * Creates a new instance of SearchTransfer. |
| */ |
| private SearchTransfer() |
| { |
| } |
| |
| |
| /** |
| * Gets the instance. |
| * |
| * @return the instance |
| */ |
| public static SearchTransfer getInstance() |
| { |
| return instance; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| * |
| * This implementation only accepts {@link ISearch} objects. |
| * It just converts the id of the connection and the name of the search |
| * to the platform specific representation. |
| */ |
| public void javaToNative( Object object, TransferData transferData ) |
| { |
| if ( !( object instanceof ISearch[] ) ) |
| { |
| return; |
| } |
| |
| if ( isSupportedType( transferData ) ) |
| { |
| ISearch[] searches = ( ISearch[] ) object; |
| try |
| { |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| DataOutputStream writeOut = new DataOutputStream( out ); |
| |
| for ( ISearch search : searches ) |
| { |
| byte[] connectionId = search.getBrowserConnection().getConnection().getId().getBytes( "UTF-8" ); //$NON-NLS-1$ |
| writeOut.writeInt( connectionId.length ); |
| writeOut.write( connectionId ); |
| byte[] searchName = search.getName().getBytes( "UTF-8" ); //$NON-NLS-1$ |
| writeOut.writeInt( searchName.length ); |
| writeOut.write( searchName ); |
| } |
| |
| byte[] buffer = out.toByteArray(); |
| writeOut.close(); |
| |
| super.javaToNative( buffer, transferData ); |
| |
| } |
| catch ( IOException e ) |
| { |
| } |
| } |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| * |
| * This implementation just converts the platform specific representation |
| * to the connection id and search name and invokes |
| * {@link BrowserConnectionManager#getBrowserConnectionById(String)} to get the |
| * {@link IBrowserConnection} object and {@link IBrowserConnection#getSearchManager()} |
| * to get the {@link ISearch} object. |
| */ |
| public Object nativeToJava( TransferData transferData ) |
| { |
| try |
| { |
| if ( isSupportedType( transferData ) ) |
| { |
| byte[] buffer = ( byte[] ) super.nativeToJava( transferData ); |
| if ( buffer == null ) |
| { |
| return null; |
| } |
| |
| List<ISearch> searchList = new ArrayList<ISearch>(); |
| try |
| { |
| IBrowserConnection connection = null; |
| ByteArrayInputStream in = new ByteArrayInputStream( buffer ); |
| DataInputStream readIn = new DataInputStream( in ); |
| |
| do |
| { |
| if ( readIn.available() > 1 ) |
| { |
| int size = readIn.readInt(); |
| byte[] connectionId = new byte[size]; |
| readIn.read( connectionId ); |
| connection = BrowserCorePlugin.getDefault().getConnectionManager() |
| .getBrowserConnectionById( new String( connectionId, "UTF-8" ) ); //$NON-NLS-1$ |
| } |
| |
| ISearch search = null; |
| if ( readIn.available() > 1 && connection != null ) |
| { |
| int size = readIn.readInt(); |
| byte[] searchName = new byte[size]; |
| readIn.read( searchName ); |
| search = connection.getSearchManager().getSearch( new String( searchName, "UTF-8" ) ); //$NON-NLS-1$ |
| } |
| else |
| { |
| return null; |
| } |
| |
| if ( search != null ) |
| { |
| searchList.add( search ); |
| } |
| } |
| while ( readIn.available() > 1 ); |
| |
| readIn.close(); |
| } |
| catch ( IOException ex ) |
| { |
| return null; |
| } |
| |
| return searchList.isEmpty() ? null : searchList.toArray( new ISearch[0] ); |
| } |
| |
| } |
| catch ( Exception e ) |
| { |
| e.printStackTrace(); |
| } |
| |
| return null; |
| |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| protected String[] getTypeNames() |
| { |
| return new String[] |
| { TYPENAME }; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| protected int[] getTypeIds() |
| { |
| return new int[] |
| { TYPEID }; |
| } |
| |
| } |