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74 lines
2.5 KiB
Java
74 lines
2.5 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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/**
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* {@link HttpContext} implementation that delegates resolution of an attribute
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* to the given default {@link HttpContext} instance if the attribute is not
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* present in the local one. The state of the local context can be mutated,
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* whereas the default context is treated as read-only.
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*
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* @since 4.0
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*/
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public final class DefaultedHttpContext implements HttpContext {
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private final HttpContext local;
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private final HttpContext defaults;
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public DefaultedHttpContext(final HttpContext local, final HttpContext defaults) {
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super();
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if (local == null) {
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throw new IllegalArgumentException("HTTP context may not be null");
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}
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this.local = local;
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this.defaults = defaults;
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}
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public Object getAttribute(final String id) {
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Object obj = this.local.getAttribute(id);
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if (obj == null) {
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return this.defaults.getAttribute(id);
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} else {
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return obj;
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}
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}
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public Object removeAttribute(final String id) {
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return this.local.removeAttribute(id);
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}
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public void setAttribute(final String id, final Object obj) {
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this.local.setAttribute(id, obj);
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}
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public HttpContext getDefaults() {
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return this.defaults;
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}
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}
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