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96 lines
2.7 KiB
Java
96 lines
2.7 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.protocol;
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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.annotation.ThreadSafe;
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import ch.boye.httpclientandroidlib.util.Args;
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/**
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* Default implementation of {@link HttpContext}.
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* <p>
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* Please note instances of this class can be thread unsafe if the
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* parent context is not thread safe.
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*
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* @since 4.0
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*/
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@ThreadSafe
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public class BasicHttpContext implements HttpContext {
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private final HttpContext parentContext;
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private final Map<String, Object> map;
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public BasicHttpContext() {
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this(null);
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}
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public BasicHttpContext(final HttpContext parentContext) {
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super();
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this.map = new ConcurrentHashMap<String, Object>();
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this.parentContext = parentContext;
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}
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public Object getAttribute(final String id) {
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Args.notNull(id, "Id");
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Object obj = this.map.get(id);
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if (obj == null && this.parentContext != null) {
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obj = this.parentContext.getAttribute(id);
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}
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return obj;
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}
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public void setAttribute(final String id, final Object obj) {
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Args.notNull(id, "Id");
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if (obj != null) {
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this.map.put(id, obj);
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} else {
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this.map.remove(id);
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}
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}
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public Object removeAttribute(final String id) {
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Args.notNull(id, "Id");
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return this.map.remove(id);
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}
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/**
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* @since 4.2
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*/
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public void clear() {
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this.map.clear();
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}
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@Override
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public String toString() {
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return this.map.toString();
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}
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}
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