| /* |
| * ==================================================================== |
| * 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.http.impl.nio.client; |
| |
| import java.io.IOException; |
| import java.util.concurrent.ThreadFactory; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.http.nio.NHttpClientEventHandler; |
| import org.apache.http.nio.conn.NHttpClientConnectionManager; |
| import org.apache.http.nio.reactor.IOEventDispatch; |
| import org.apache.http.util.Asserts; |
| |
| abstract class CloseableHttpAsyncClientBase extends CloseableHttpPipeliningClient { |
| |
| private final Log log = LogFactory.getLog(getClass()); |
| |
| static enum Status {INACTIVE, ACTIVE, STOPPED} |
| |
| private final NHttpClientConnectionManager connmgr; |
| private final Thread reactorThread; |
| |
| private final AtomicReference<Status> status; |
| |
| public CloseableHttpAsyncClientBase( |
| final NHttpClientConnectionManager connmgr, |
| final ThreadFactory threadFactory, |
| final NHttpClientEventHandler handler) { |
| super(); |
| this.connmgr = connmgr; |
| if (threadFactory != null && handler != null) { |
| this.reactorThread = threadFactory.newThread(new Runnable() { |
| |
| @Override |
| public void run() { |
| try { |
| final IOEventDispatch ioEventDispatch = new InternalIODispatch(handler); |
| connmgr.execute(ioEventDispatch); |
| } catch (final Exception ex) { |
| log.error("I/O reactor terminated abnormally", ex); |
| } finally { |
| status.set(Status.STOPPED); |
| } |
| } |
| |
| }); |
| } else { |
| this.reactorThread = null; |
| } |
| this.status = new AtomicReference<Status>(Status.INACTIVE); |
| } |
| |
| @Override |
| public void start() { |
| if (this.status.compareAndSet(Status.INACTIVE, Status.ACTIVE)) { |
| if (this.reactorThread != null) { |
| this.reactorThread.start(); |
| } |
| } |
| } |
| |
| protected void ensureRunning() { |
| final Status currentStatus = this.status.get(); |
| Asserts.check(currentStatus == Status.ACTIVE, "Request cannot be executed; " + |
| "I/O reactor status: %s", currentStatus); |
| } |
| |
| @Override |
| public void close() { |
| if (this.status.compareAndSet(Status.ACTIVE, Status.STOPPED)) { |
| if (this.reactorThread != null) { |
| try { |
| this.connmgr.shutdown(); |
| } catch (final IOException ex) { |
| this.log.error("I/O error shutting down connection manager", ex); |
| } |
| try { |
| this.reactorThread.join(); |
| } catch (final InterruptedException ex) { |
| Thread.currentThread().interrupt(); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public boolean isRunning() { |
| return this.status.get() == Status.ACTIVE; |
| } |
| |
| } |