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+/*
+ * ====================================================================
+ * 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 ch.boye.httpclientandroidlib.impl.execchain;
+
+import java.io.Closeable;
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+
+import ch.boye.httpclientandroidlib.androidextra.HttpClientAndroidLog;
+import ch.boye.httpclientandroidlib.HttpClientConnection;
+import ch.boye.httpclientandroidlib.annotation.ThreadSafe;
+import ch.boye.httpclientandroidlib.concurrent.Cancellable;
+import ch.boye.httpclientandroidlib.conn.ConnectionReleaseTrigger;
+import ch.boye.httpclientandroidlib.conn.HttpClientConnectionManager;
+
+/**
+ * Internal connection holder.
+ *
+ * @since 4.3
+ */
+@ThreadSafe
+class ConnectionHolder implements ConnectionReleaseTrigger, Cancellable, Closeable {
+
+ public HttpClientAndroidLog log;
+
+ private final HttpClientConnectionManager manager;
+ private final HttpClientConnection managedConn;
+ private volatile boolean reusable;
+ private volatile Object state;
+ private volatile long validDuration;
+ private volatile TimeUnit tunit;
+
+ private volatile boolean released;
+
+ public ConnectionHolder(
+ final HttpClientAndroidLog log,
+ final HttpClientConnectionManager manager,
+ final HttpClientConnection managedConn) {
+ super();
+ this.log = log;
+ this.manager = manager;
+ this.managedConn = managedConn;
+ }
+
+ public boolean isReusable() {
+ return this.reusable;
+ }
+
+ public void markReusable() {
+ this.reusable = true;
+ }
+
+ public void markNonReusable() {
+ this.reusable = false;
+ }
+
+ public void setState(final Object state) {
+ this.state = state;
+ }
+
+ public void setValidFor(final long duration, final TimeUnit tunit) {
+ synchronized (this.managedConn) {
+ this.validDuration = duration;
+ this.tunit = tunit;
+ }
+ }
+
+ public void releaseConnection() {
+ synchronized (this.managedConn) {
+ if (this.released) {
+ return;
+ }
+ this.released = true;
+ if (this.reusable) {
+ this.manager.releaseConnection(this.managedConn,
+ this.state, this.validDuration, this.tunit);
+ } else {
+ try {
+ this.managedConn.close();
+ log.debug("Connection discarded");
+ } catch (final IOException ex) {
+ if (this.log.isDebugEnabled()) {
+ this.log.debug(ex.getMessage(), ex);
+ }
+ } finally {
+ this.manager.releaseConnection(
+ this.managedConn, null, 0, TimeUnit.MILLISECONDS);
+ }
+ }
+ }
+ }
+
+ public void abortConnection() {
+ synchronized (this.managedConn) {
+ if (this.released) {
+ return;
+ }
+ this.released = true;
+ try {
+ this.managedConn.shutdown();
+ log.debug("Connection discarded");
+ } catch (final IOException ex) {
+ if (this.log.isDebugEnabled()) {
+ this.log.debug(ex.getMessage(), ex);
+ }
+ } finally {
+ this.manager.releaseConnection(
+ this.managedConn, null, 0, TimeUnit.MILLISECONDS);
+ }
+ }
+ }
+
+ public boolean cancel() {
+ final boolean alreadyReleased = this.released;
+ log.debug("Cancelling request execution");
+ abortConnection();
+ return !alreadyReleased;
+ }
+
+ public boolean isReleased() {
+ return this.released;
+ }
+
+ public void close() throws IOException {
+ abortConnection();
+ }
+
+}