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Moonchild
105 lines
4.1 KiB
Java
105 lines
4.1 KiB
Java
/*
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package ch.boye.httpclientandroidlib.impl.execchain;
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import java.io.IOException;
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import java.lang.reflect.UndeclaredThrowableException;
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import ch.boye.httpclientandroidlib.HttpException;
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import ch.boye.httpclientandroidlib.annotation.Immutable;
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import ch.boye.httpclientandroidlib.client.BackoffManager;
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import ch.boye.httpclientandroidlib.client.ConnectionBackoffStrategy;
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import ch.boye.httpclientandroidlib.client.methods.CloseableHttpResponse;
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import ch.boye.httpclientandroidlib.client.methods.HttpExecutionAware;
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import ch.boye.httpclientandroidlib.client.methods.HttpRequestWrapper;
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import ch.boye.httpclientandroidlib.client.protocol.HttpClientContext;
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import ch.boye.httpclientandroidlib.conn.routing.HttpRoute;
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import ch.boye.httpclientandroidlib.util.Args;
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/**
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* @since 4.3
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*/
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@Immutable
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public class BackoffStrategyExec implements ClientExecChain {
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private final ClientExecChain requestExecutor;
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private final ConnectionBackoffStrategy connectionBackoffStrategy;
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private final BackoffManager backoffManager;
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public BackoffStrategyExec(
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final ClientExecChain requestExecutor,
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final ConnectionBackoffStrategy connectionBackoffStrategy,
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final BackoffManager backoffManager) {
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super();
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Args.notNull(requestExecutor, "HTTP client request executor");
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Args.notNull(connectionBackoffStrategy, "Connection backoff strategy");
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Args.notNull(backoffManager, "Backoff manager");
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this.requestExecutor = requestExecutor;
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this.connectionBackoffStrategy = connectionBackoffStrategy;
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this.backoffManager = backoffManager;
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}
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public CloseableHttpResponse execute(
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final HttpRoute route,
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final HttpRequestWrapper request,
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final HttpClientContext context,
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final HttpExecutionAware execAware) throws IOException, HttpException {
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Args.notNull(route, "HTTP route");
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Args.notNull(request, "HTTP request");
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Args.notNull(context, "HTTP context");
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CloseableHttpResponse out = null;
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try {
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out = this.requestExecutor.execute(route, request, context, execAware);
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} catch (final Exception ex) {
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if (out != null) {
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out.close();
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}
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if (this.connectionBackoffStrategy.shouldBackoff(ex)) {
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this.backoffManager.backOff(route);
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}
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if (ex instanceof RuntimeException) {
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throw (RuntimeException) ex;
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}
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if (ex instanceof HttpException) {
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throw (HttpException) ex;
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}
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if (ex instanceof IOException) {
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throw (IOException) ex;
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}
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throw new UndeclaredThrowableException(ex);
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}
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if (this.connectionBackoffStrategy.shouldBackoff(out)) {
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this.backoffManager.backOff(route);
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} else {
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this.backoffManager.probe(route);
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}
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return out;
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}
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}
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