// Copyright (c) 2010 Shardul Deo // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. package com.googlecode.protobuf.socketrpc; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.net.Socket; import com.google.protobuf.MessageLite; import com.google.protobuf.MessageLite.Builder; import com.googlecode.protobuf.socketrpc.RpcConnectionFactory.Connection; /** * {@link Connection} impl that wraps a {@link Socket}. * * @author Shardul Deo */ class SocketConnection implements Connection { private final Socket socket; private final OutputStream out; private final InputStream in; private final boolean delimited; SocketConnection(Socket socket, boolean delimited) throws IOException { this.socket = socket; this.delimited = delimited; // Create input/output streams try { out = new BufferedOutputStream(socket.getOutputStream()); in = new BufferedInputStream(socket.getInputStream()); } catch (IOException e) { // Cleanup and rethrow try { socket.close(); } catch (IOException ioe) { // It's ok } throw e; } } @Override public void sendProtoMessage(MessageLite message) throws IOException { // Write message if (delimited) { try { message.writeDelimitedTo(out); out.flush(); } catch (IOException e) { // Cannot write anymore, just close socket socket.close(); throw e; } } else { message.writeTo(out); out.flush(); socket.shutdownOutput(); } } @Override public void receiveProtoMessage(Builder messageBuilder) throws IOException { // Read message if (delimited) { messageBuilder.mergeDelimitedFrom(in); } else { messageBuilder.mergeFrom(in); } } @Override public void close() throws IOException { if (!socket.isClosed()) { socket.close(); } } @Override public boolean isClosed() { return socket.isClosed(); } }