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81 lines
2.9 KiB
Java
81 lines
2.9 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.client;
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import java.util.Locale;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import ch.boye.httpclientandroidlib.HttpRequest;
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import ch.boye.httpclientandroidlib.annotation.Immutable;
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/**
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* {@link ch.boye.httpclientandroidlib.client.HttpRequestRetryHandler} which assumes
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* that all requested HTTP methods which should be idempotent according
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* to RFC-2616 are in fact idempotent and can be retried.
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* <p/>
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* According to RFC-2616 section 9.1.2 the idempotent HTTP methods are:
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* GET, HEAD, PUT, DELETE, OPTIONS, and TRACE
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*
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* @since 4.2
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*/
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@Immutable
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public class StandardHttpRequestRetryHandler extends DefaultHttpRequestRetryHandler {
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private final Map<String, Boolean> idempotentMethods;
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/**
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* Default constructor
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*/
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public StandardHttpRequestRetryHandler(final int retryCount, final boolean requestSentRetryEnabled) {
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super(retryCount, requestSentRetryEnabled);
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this.idempotentMethods = new ConcurrentHashMap<String, Boolean>();
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this.idempotentMethods.put("GET", Boolean.TRUE);
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this.idempotentMethods.put("HEAD", Boolean.TRUE);
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this.idempotentMethods.put("PUT", Boolean.TRUE);
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this.idempotentMethods.put("DELETE", Boolean.TRUE);
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this.idempotentMethods.put("OPTIONS", Boolean.TRUE);
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this.idempotentMethods.put("TRACE", Boolean.TRUE);
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}
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/**
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* Default constructor
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*/
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public StandardHttpRequestRetryHandler() {
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this(3, false);
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}
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@Override
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protected boolean handleAsIdempotent(final HttpRequest request) {
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final String method = request.getRequestLine().getMethod().toUpperCase(Locale.ENGLISH);
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final Boolean b = this.idempotentMethods.get(method);
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return b != null && b.booleanValue();
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}
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}
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