| /* |
| * ==================================================================== |
| * 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| */ |
| |
| package org.apache.hc.core5.reactor; |
| |
| import java.io.IOException; |
| import java.net.SocketAddress; |
| import java.nio.channels.Channel; |
| import java.nio.channels.SelectionKey; |
| |
| import org.apache.hc.core5.annotation.Contract; |
| import org.apache.hc.core5.annotation.ThreadingBehavior; |
| import org.apache.hc.core5.util.Args; |
| |
| /** |
| * Default implementation of {@link ListenerEndpoint}. |
| * |
| * @since 4.0 |
| */ |
| @Contract(threading = ThreadingBehavior.SAFE_CONDITIONAL) |
| public class ListenerEndpointImpl implements ListenerEndpoint { |
| |
| private volatile boolean completed; |
| private volatile boolean closed; |
| private volatile SelectionKey key; |
| private volatile SocketAddress address; |
| private volatile IOException exception; |
| |
| private final ListenerEndpointClosedCallback callback; |
| |
| public ListenerEndpointImpl( |
| final SocketAddress address, |
| final ListenerEndpointClosedCallback callback) { |
| super(); |
| Args.notNull(address, "Address"); |
| this.address = address; |
| this.callback = callback; |
| } |
| |
| @Override |
| public SocketAddress getAddress() { |
| return this.address; |
| } |
| |
| public boolean isCompleted() { |
| return this.completed; |
| } |
| |
| @Override |
| public IOException getException() { |
| return this.exception; |
| } |
| |
| @Override |
| public String toString() { |
| return "[address=" + address + ", key=" + key + ", closed=" + closed + ", completed=" |
| + completed + ", exception=" + exception + ", callback=" + callback + "]"; |
| } |
| |
| @Override |
| public void waitFor() throws InterruptedException { |
| if (this.completed) { |
| return; |
| } |
| synchronized (this) { |
| while (!this.completed) { |
| wait(); |
| } |
| } |
| } |
| |
| public void completed(final SocketAddress address) { |
| Args.notNull(address, "Address"); |
| if (this.completed) { |
| return; |
| } |
| this.completed = true; |
| synchronized (this) { |
| this.address = address; |
| notifyAll(); |
| } |
| } |
| |
| public void failed(final IOException exception) { |
| if (exception == null) { |
| return; |
| } |
| if (this.completed) { |
| return; |
| } |
| this.completed = true; |
| synchronized (this) { |
| this.exception = exception; |
| notifyAll(); |
| } |
| } |
| |
| public void cancel() { |
| if (this.completed) { |
| return; |
| } |
| this.completed = true; |
| this.closed = true; |
| synchronized (this) { |
| notifyAll(); |
| } |
| } |
| |
| protected void setKey(final SelectionKey key) { |
| this.key = key; |
| } |
| |
| @Override |
| public boolean isClosed() { |
| return this.closed || (this.key != null && !this.key.isValid()); |
| } |
| |
| @Override |
| public void close() { |
| if (this.closed) { |
| return; |
| } |
| this.completed = true; |
| this.closed = true; |
| if (this.key != null) { |
| this.key.cancel(); |
| final Channel channel = this.key.channel(); |
| try { |
| channel.close(); |
| } catch (final IOException ignore) {} |
| } |
| if (this.callback != null) { |
| this.callback.endpointClosed(this); |
| } |
| synchronized (this) { |
| notifyAll(); |
| } |
| } |
| |
| } |