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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
* .
*
*/
package org.apache.http.protocol;
import org.apache.http.util.Args;
/**
* {@link HttpContext} implementation that delegates resolution of an attribute
* to the given default {@link HttpContext} instance if the attribute is not
* present in the local one. The state of the local context can be mutated,
* whereas the default context is treated as read-only.
*
* @since 4.0
*
* @deprecated (4.3) no longer used.
*/
@Deprecated
public final class DefaultedHttpContext implements HttpContext {
private final HttpContext local;
private final HttpContext defaults;
public DefaultedHttpContext(final HttpContext local, final HttpContext defaults) {
super();
this.local = Args.notNull(local, "HTTP context");
this.defaults = defaults;
}
@Override
public Object getAttribute(final String id) {
final Object obj = this.local.getAttribute(id);
if (obj == null) {
return this.defaults.getAttribute(id);
} else {
return obj;
}
}
@Override
public Object removeAttribute(final String id) {
return this.local.removeAttribute(id);
}
@Override
public void setAttribute(final String id, final Object obj) {
this.local.setAttribute(id, obj);
}
public HttpContext getDefaults() {
return this.defaults;
}
@Override
public String toString() {
final StringBuilder buf = new StringBuilder();
buf.append("[local: ").append(this.local);
buf.append("defaults: ").append(this.defaults);
buf.append("]");
return buf.toString();
}
}