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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
+ * <http://www.apache.org/>.
+ *
+ */
+
+package ch.boye.httpclientandroidlib;
+
+import java.io.IOException;
+
+import ch.boye.httpclientandroidlib.protocol.HttpContext;
+
+/**
+ * HTTP protocol interceptor is a routine that implements a specific aspect of
+ * the HTTP protocol. Usually protocol interceptors are expected to act upon
+ * one specific header or a group of related headers of the incoming message
+ * or populate the outgoing message with one specific header or a group of
+ * related headers. Protocol
+ * <p>
+ * Interceptors can also manipulate content entities enclosed with messages.
+ * Usually this is accomplished by using the 'Decorator' pattern where a wrapper
+ * entity class is used to decorate the original entity.
+ * <p>
+ * Protocol interceptors must be implemented as thread-safe. Similarly to
+ * servlets, protocol interceptors should not use instance variables unless
+ * access to those variables is synchronized.
+ *
+ * @since 4.0
+ */
+public interface HttpResponseInterceptor {
+
+ /**
+ * Processes a response.
+ * On the server side, this step is performed before the response is
+ * sent to the client. On the client side, this step is performed
+ * on incoming messages before the message body is evaluated.
+ *
+ * @param response the response to postprocess
+ * @param context the context for the request
+ *
+ * @throws HttpException in case of an HTTP protocol violation
+ * @throws IOException in case of an I/O error
+ */
+ void process(HttpResponse response, HttpContext context)
+ throws HttpException, IOException;
+
+}