| /* |
| * Copyright 2000-2010 JetBrains s.r.o. |
| * |
| * 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 com.intellij.util.io.socketConnection.impl; |
| |
| import com.intellij.openapi.Disposable; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.util.Disposer; |
| import com.intellij.util.EventDispatcher; |
| import com.intellij.util.io.socketConnection.*; |
| import gnu.trove.TIntObjectHashMap; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.Socket; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.LinkedBlockingQueue; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| /** |
| * @author nik |
| */ |
| public abstract class SocketConnectionBase<Request extends AbstractRequest, Response extends AbstractResponse> implements SocketConnection<Request, Response> { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.util.io.socketConnection.impl.ServerSocketConnectionImpl"); |
| private final Object myLock = new Object(); |
| private int myPort = -1; |
| private final AtomicReference<ConnectionState> myState = new AtomicReference<ConnectionState>(new ConnectionState(ConnectionStatus.NOT_CONNECTED)); |
| private boolean myStopping; |
| private final EventDispatcher<SocketConnectionListener> myDispatcher = EventDispatcher.create(SocketConnectionListener.class); |
| private final List<Thread> myThreadsToInterrupt = new ArrayList<Thread>(); |
| private final RequestResponseExternalizerFactory<Request, Response> myExternalizerFactory; |
| private final LinkedBlockingQueue<Request> myRequests = new LinkedBlockingQueue<Request>(); |
| private final TIntObjectHashMap<TimeoutInfo> myTimeouts = new TIntObjectHashMap<TimeoutInfo>(); |
| private final ResponseProcessor<Response> myResponseProcessor; |
| |
| public SocketConnectionBase(@NotNull RequestResponseExternalizerFactory<Request, Response> factory) { |
| myResponseProcessor = new ResponseProcessor<Response>(this); |
| myExternalizerFactory = factory; |
| } |
| |
| @Override |
| public void sendRequest(@NotNull Request request) { |
| sendRequest(request, null); |
| } |
| |
| @Override |
| public void sendRequest(@NotNull Request request, @Nullable AbstractResponseToRequestHandler<? extends Response> handler) { |
| if (handler != null) { |
| myResponseProcessor.registerHandler(request.getId(), handler); |
| } |
| |
| try { |
| myRequests.put(request); |
| } |
| catch (InterruptedException ignored) { |
| } |
| } |
| |
| @Override |
| public void sendRequest(@NotNull Request request, @Nullable AbstractResponseToRequestHandler<? extends Response> handler, |
| int timeout, @NotNull Runnable onTimeout) { |
| myTimeouts.put(request.getId(), new TimeoutInfo(timeout, onTimeout)); |
| sendRequest(request, handler); |
| } |
| |
| @Override |
| public <R extends Response> void registerHandler(@NotNull Class<R> responseClass, @NotNull AbstractResponseHandler<R> handler) { |
| myResponseProcessor.registerHandler(responseClass, handler); |
| } |
| |
| @Override |
| public boolean isStopping() { |
| synchronized (myLock) { |
| return myStopping; |
| } |
| } |
| |
| protected void processRequests(RequestWriter<Request> writer) throws IOException { |
| addThreadToInterrupt(); |
| try { |
| while (!isStopping()) { |
| final Request request = myRequests.take(); |
| LOG.debug("sending request: " + request); |
| final TimeoutInfo timeoutInfo = myTimeouts.remove(request.getId()); |
| if (timeoutInfo != null) { |
| myResponseProcessor.registerTimeoutHandler(request.getId(), timeoutInfo.myTimeout, timeoutInfo.myOnTimeout); |
| } |
| writer.writeRequest(request); |
| } |
| } |
| catch (InterruptedException ignored) { |
| } |
| setStatus(ConnectionStatus.DISCONNECTED, null); |
| removeThreadToInterrupt(); |
| } |
| |
| protected void addThreadToInterrupt() { |
| synchronized (myLock) { |
| myThreadsToInterrupt.add(Thread.currentThread()); |
| } |
| } |
| |
| protected void removeThreadToInterrupt() { |
| synchronized (myLock) { |
| myThreadsToInterrupt.remove(Thread.currentThread()); |
| } |
| } |
| |
| @Override |
| public void dispose() { |
| LOG.debug("Firefox connection disposed"); |
| } |
| |
| @Override |
| public int getPort() { |
| return myPort; |
| } |
| |
| protected void setStatus(@NotNull ConnectionStatus status, @Nullable String message) { |
| synchronized (myLock) { |
| myState.set(new ConnectionState(status, message, null)); |
| } |
| myDispatcher.getMulticaster().statusChanged(status); |
| } |
| |
| @Override |
| @NotNull |
| public ConnectionState getState() { |
| synchronized (myLock) { |
| return myState.get(); |
| } |
| } |
| |
| @Override |
| public void addListener(@NotNull SocketConnectionListener listener, @Nullable Disposable parentDisposable) { |
| if (parentDisposable != null) { |
| myDispatcher.addListener(listener, parentDisposable); |
| } |
| else { |
| myDispatcher.addListener(listener); |
| } |
| } |
| |
| @Override |
| public void close() { |
| synchronized (myLock) { |
| if (myStopping) return; |
| myStopping = true; |
| } |
| LOG.debug("closing connection"); |
| synchronized (myLock) { |
| for (Thread thread : myThreadsToInterrupt) { |
| thread.interrupt(); |
| } |
| } |
| onClosing(); |
| myResponseProcessor.stopReading(); |
| Disposer.dispose(this); |
| } |
| |
| protected void onClosing() { |
| } |
| |
| protected void attachToSocket(Socket socket) throws IOException { |
| setStatus(ConnectionStatus.CONNECTED, null); |
| LOG.debug("connected"); |
| |
| final OutputStream outputStream = socket.getOutputStream(); |
| final InputStream inputStream = socket.getInputStream(); |
| myResponseProcessor.startReading(myExternalizerFactory.createResponseReader(inputStream)); |
| processRequests(myExternalizerFactory.createRequestWriter(outputStream)); |
| } |
| |
| protected void setPort(int port) { |
| myPort = port; |
| } |
| |
| private static class TimeoutInfo { |
| private final int myTimeout; |
| private final Runnable myOnTimeout; |
| |
| private TimeoutInfo(int timeout, Runnable onTimeout) { |
| myTimeout = timeout; |
| myOnTimeout = onTimeout; |
| } |
| } |
| } |