| /* |
| * ==================================================================== |
| * 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.conn; |
| |
| import java.io.IOException; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.http.concurrent.BasicFuture; |
| import org.apache.http.concurrent.FutureCallback; |
| import org.apache.http.conn.routing.HttpRoute; |
| import org.apache.http.nio.conn.ManagedClientConnection; |
| import org.apache.http.nio.conn.ClientConnectionManager; |
| import org.apache.http.nio.conn.scheme.SchemeRegistry; |
| import org.apache.http.nio.reactor.ConnectingIOReactor; |
| import org.apache.http.nio.reactor.IOEventDispatch; |
| import org.apache.http.nio.reactor.IOReactorException; |
| import org.apache.http.nio.reactor.IOReactorStatus; |
| import org.apache.http.pool.ConnPoolControl; |
| import org.apache.http.pool.PoolStats; |
| |
| public class PoolingClientConnectionManager implements ClientConnectionManager, ConnPoolControl<HttpRoute> { |
| |
| private final Log log = LogFactory.getLog(getClass()); |
| |
| private final ConnectingIOReactor ioreactor; |
| private final HttpNIOConnPool pool; |
| private final SchemeRegistry schemeRegistry; |
| |
| public PoolingClientConnectionManager( |
| final ConnectingIOReactor ioreactor, |
| final SchemeRegistry schemeRegistry, |
| final long timeToLive, final TimeUnit tunit) { |
| super(); |
| if (ioreactor == null) { |
| throw new IllegalArgumentException("I/O reactor may not be null"); |
| } |
| if (schemeRegistry == null) { |
| throw new IllegalArgumentException("Scheme registory may not be null"); |
| } |
| if (tunit == null) { |
| throw new IllegalArgumentException("Time unit may not be null"); |
| } |
| this.ioreactor = ioreactor; |
| this.pool = new HttpNIOConnPool(this.log, ioreactor, schemeRegistry, timeToLive, tunit); |
| this.schemeRegistry = schemeRegistry; |
| } |
| |
| public PoolingClientConnectionManager( |
| final ConnectingIOReactor ioreactor, |
| final SchemeRegistry schemeRegistry) throws IOReactorException { |
| this(ioreactor, schemeRegistry, -1, TimeUnit.MILLISECONDS); |
| } |
| |
| public PoolingClientConnectionManager( |
| final ConnectingIOReactor ioreactor) throws IOReactorException { |
| this(ioreactor, SchemeRegistryFactory.createDefault()); |
| } |
| |
| @Override |
| protected void finalize() throws Throwable { |
| try { |
| shutdown(); |
| } finally { |
| super.finalize(); |
| } |
| } |
| |
| public SchemeRegistry getSchemeRegistry() { |
| return this.schemeRegistry; |
| } |
| |
| public void execute(final IOEventDispatch eventDispatch) throws IOException { |
| this.ioreactor.execute(eventDispatch); |
| } |
| |
| public IOReactorStatus getStatus() { |
| return this.ioreactor.getStatus(); |
| } |
| |
| public void shutdown(long waitMs) throws IOException { |
| this.log.debug("Connection manager is shutting down"); |
| this.pool.shutdown(waitMs); |
| this.log.debug("Connection manager shut down"); |
| } |
| |
| public void shutdown() throws IOException { |
| this.log.debug("Connection manager is shutting down"); |
| this.pool.shutdown(2000); |
| this.log.debug("Connection manager shut down"); |
| } |
| |
| private String format(final HttpRoute route, final Object state) { |
| StringBuilder buf = new StringBuilder(); |
| buf.append("[route: ").append(route).append("]"); |
| if (state != null) { |
| buf.append("[state: ").append(state).append("]"); |
| } |
| return buf.toString(); |
| } |
| |
| private String formatStats(final HttpRoute route) { |
| StringBuilder buf = new StringBuilder(); |
| PoolStats totals = this.pool.getTotalStats(); |
| PoolStats stats = this.pool.getStats(route); |
| buf.append("[total kept alive: ").append(totals.getAvailable()).append("; "); |
| buf.append("route allocated: ").append(stats.getLeased() + stats.getAvailable()); |
| buf.append(" of ").append(stats.getMax()).append("; "); |
| buf.append("total allocated: ").append(totals.getLeased() + totals.getAvailable()); |
| buf.append(" of ").append(totals.getMax()).append("]"); |
| return buf.toString(); |
| } |
| |
| private String format(final HttpPoolEntry entry) { |
| StringBuilder buf = new StringBuilder(); |
| buf.append("[id: ").append(entry.getId()).append("]"); |
| buf.append("[route: ").append(entry.getRoute()).append("]"); |
| Object state = entry.getState(); |
| if (state != null) { |
| buf.append("[state: ").append(state).append("]"); |
| } |
| return buf.toString(); |
| } |
| |
| public Future<ManagedClientConnection> leaseConnection( |
| final HttpRoute route, |
| final Object state, |
| final long connectTimeout, |
| final TimeUnit tunit, |
| final FutureCallback<ManagedClientConnection> callback) { |
| if (route == null) { |
| throw new IllegalArgumentException("HTTP route may not be null"); |
| } |
| if (tunit == null) { |
| throw new IllegalArgumentException("Time unit may not be null"); |
| } |
| if (this.log.isDebugEnabled()) { |
| this.log.debug("Connection request: " + format(route, state) + formatStats(route)); |
| } |
| BasicFuture<ManagedClientConnection> future = new BasicFuture<ManagedClientConnection>( |
| callback); |
| this.pool.lease(route, state, connectTimeout, tunit, new InternalPoolEntryCallback(future)); |
| return future; |
| } |
| |
| public void releaseConnection( |
| final ManagedClientConnection conn, |
| final long keepalive, |
| final TimeUnit tunit) { |
| if (conn == null) { |
| throw new IllegalArgumentException("HTTP connection may not be null"); |
| } |
| if (!(conn instanceof ManagedClientConnectionImpl)) { |
| throw new IllegalArgumentException("Connection class mismatch, " + |
| "connection not obtained from this manager"); |
| } |
| if (tunit == null) { |
| throw new IllegalArgumentException("Time unit may not be null"); |
| } |
| ManagedClientConnectionImpl managedConn = (ManagedClientConnectionImpl) conn; |
| ClientConnectionManager manager = managedConn.getManager(); |
| if (manager != null && manager != this) { |
| throw new IllegalArgumentException("Connection not obtained from this manager"); |
| } |
| if (this.pool.isShutdown()) { |
| return; |
| } |
| |
| synchronized (managedConn) { |
| HttpPoolEntry entry = managedConn.detach(); |
| if (entry == null) { |
| return; |
| } |
| try { |
| if (managedConn.isOpen() && !managedConn.isMarkedReusable()) { |
| try { |
| managedConn.shutdown(); |
| } catch (IOException iox) { |
| if (this.log.isDebugEnabled()) { |
| this.log.debug("I/O exception shutting down released connection", iox); |
| } |
| } |
| } |
| entry.updateExpiry(keepalive, tunit != null ? tunit : TimeUnit.MILLISECONDS); |
| if (this.log.isDebugEnabled()) { |
| String s; |
| if (keepalive > 0) { |
| s = "for " + keepalive + " " + tunit; |
| } else { |
| s = "indefinitely"; |
| } |
| this.log.debug("Connection " + format(entry) + " can be kept alive " + s); |
| } |
| } finally { |
| this.pool.release(entry, managedConn.isMarkedReusable()); |
| } |
| if (this.log.isDebugEnabled()) { |
| this.log.debug("Connection released: " + format(entry) + formatStats(entry.getRoute())); |
| } |
| } |
| } |
| |
| public PoolStats getTotalStats() { |
| return this.pool.getTotalStats(); |
| } |
| |
| public PoolStats getStats(final HttpRoute route) { |
| return this.pool.getStats(route); |
| } |
| |
| @Deprecated |
| public void setTotalMax(int max) { |
| this.pool.setMaxTotal(max); |
| } |
| |
| public void setMaxTotal(int max) { |
| this.pool.setMaxTotal(max); |
| } |
| |
| @Deprecated |
| public void setDefaultMaxPerHost(int max) { |
| this.pool.setDefaultMaxPerRoute(max); |
| } |
| |
| public void setDefaultMaxPerRoute(int max) { |
| this.pool.setDefaultMaxPerRoute(max); |
| } |
| |
| @Deprecated |
| public void setMaxPerHost(final HttpRoute route, int max) { |
| this.pool.setMaxPerRoute(route, max); |
| } |
| |
| public void setMaxPerRoute(final HttpRoute route, int max) { |
| this.pool.setMaxPerRoute(route, max); |
| } |
| |
| public void closeIdleConnections(long idleTimeout, final TimeUnit tunit) { |
| if (log.isDebugEnabled()) { |
| log.debug("Closing connections idle longer than " + idleTimeout + " " + tunit); |
| } |
| this.pool.closeIdle(idleTimeout, tunit); |
| } |
| |
| public void closeExpiredConnections() { |
| log.debug("Closing expired connections"); |
| this.pool.closeExpired(); |
| } |
| |
| class InternalPoolEntryCallback implements FutureCallback<HttpPoolEntry> { |
| |
| private final BasicFuture<ManagedClientConnection> future; |
| |
| public InternalPoolEntryCallback( |
| final BasicFuture<ManagedClientConnection> future) { |
| super(); |
| this.future = future; |
| } |
| |
| public void completed(final HttpPoolEntry entry) { |
| if (log.isDebugEnabled()) { |
| log.debug("Connection leased: " + format(entry) + formatStats(entry.getRoute())); |
| } |
| ManagedClientConnection conn = new ManagedClientConnectionImpl( |
| PoolingClientConnectionManager.this, |
| entry); |
| if (!this.future.completed(conn)) { |
| pool.release(entry, true); |
| } |
| } |
| |
| public void failed(final Exception ex) { |
| if (log.isDebugEnabled()) { |
| log.debug("Connection request failed", ex); |
| } |
| this.future.failed(ex); |
| } |
| |
| public void cancelled() { |
| log.debug("Connection request cancelled"); |
| this.future.cancel(true); |
| } |
| |
| } |
| |
| } |