| // Copyright 2009 The Apache Software Foundation |
| // |
| // Licensed 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.tapestry5.internal.services; |
| |
| import org.apache.tapestry5.internal.util.Base64InputStream; |
| import org.apache.tapestry5.services.ClientDataEncoder; |
| import org.apache.tapestry5.services.ClientDataSink; |
| import org.apache.tapestry5.services.URLEncoder; |
| |
| import java.io.BufferedInputStream; |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.util.zip.GZIPInputStream; |
| |
| public class ClientDataEncoderImpl implements ClientDataEncoder |
| { |
| private final URLEncoder urlEncoder; |
| |
| public ClientDataEncoderImpl(URLEncoder urlEncoder) |
| { |
| this.urlEncoder = urlEncoder; |
| } |
| |
| public ClientDataSink createSink() |
| { |
| try |
| { |
| return new ClientDataSinkImpl(urlEncoder); |
| } |
| catch (IOException ex) |
| { |
| throw new RuntimeException(ex); |
| } |
| } |
| |
| public ObjectInputStream decodeClientData(String clientData) |
| { |
| // The clientData is Base64 that's been gzip'ed (i.e., this matches |
| // what ClientDataSinkImpl does. |
| |
| try |
| { |
| BufferedInputStream buffered = new BufferedInputStream( |
| new GZIPInputStream(new Base64InputStream(clientData))); |
| |
| return new ObjectInputStream(buffered); |
| } |
| catch (IOException ex) |
| { |
| throw new RuntimeException(ex); |
| } |
| } |
| |
| public ObjectInputStream decodeEncodedClientData(String clientData) throws IOException |
| { |
| return decodeClientData(urlEncoder.decode(clientData)); |
| } |
| } |