| /* |
| * 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.mina.filter.codec; |
| |
| import org.apache.mina.api.IoSession; |
| |
| /** |
| * Decodes binary or protocol-specific data into higher-level message objects. |
| * |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| * |
| */ |
| public interface ProtocolDecoder<INPUT,OUTPUT> { |
| |
| /** |
| * Decode binary or protocol-specific content of type <code>INPUT</code> into higher-level protocol message objects, of type OUTPUT |
| * @param session the session for this message |
| * @param input the received message to decode |
| * @return the decoded message or <code>null</code> if nothing was decoded |
| */ |
| OUTPUT decode(IoSession session, INPUT input); |
| |
| /** |
| * Finish decoding, for example if the decoder accumulated some unused input, it should discard it, or throw an Exception |
| */ |
| void finishDecode(IoSession session); |
| } |