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Java example source code file (ResponseProcessCookies.java)

This example source code file (ResponseProcessCookies.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java tags/keywords

cookie, cookieorigin, cookiespec, cookiestore, headeriterator, http, httpcontext, httpresponseinterceptor, illegalargumentexception, invalid, io, ioexception, list, malformedcookieexception, responseprocesscookies, util

The ResponseProcessCookies.java example source code

 * ====================================================================
 * 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
 * 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 org.apache.http.client.protocol;

import java.io.IOException;
import java.util.List;

import org.apache.http.annotation.Immutable;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.Header;
import org.apache.http.HeaderIterator;
import org.apache.http.HttpException;
import org.apache.http.HttpResponse;
import org.apache.http.HttpResponseInterceptor;
import org.apache.http.client.CookieStore;
import org.apache.http.cookie.Cookie;
import org.apache.http.cookie.CookieOrigin;
import org.apache.http.cookie.CookieSpec;
import org.apache.http.cookie.MalformedCookieException;
import org.apache.http.cookie.SM;
import org.apache.http.protocol.HttpContext;

 * Response interceptor that populates the current {@link CookieStore} with data 
 * contained in response cookies received in the given the HTTP response.
 * @since 4.0
public class ResponseProcessCookies implements HttpResponseInterceptor {

    private final Log log = LogFactory.getLog(getClass());
    public ResponseProcessCookies() {
    public void process(final HttpResponse response, final HttpContext context) 
            throws HttpException, IOException {
        if (response == null) {
            throw new IllegalArgumentException("HTTP request may not be null");
        if (context == null) {
            throw new IllegalArgumentException("HTTP context may not be null");
        // Obtain actual CookieSpec instance
        CookieSpec cookieSpec = (CookieSpec) context.getAttribute(
        if (cookieSpec == null) {
        // Obtain cookie store
        CookieStore cookieStore = (CookieStore) context.getAttribute(
        if (cookieStore == null) {
            this.log.info("CookieStore not available in HTTP context");
        // Obtain actual CookieOrigin instance
        CookieOrigin cookieOrigin = (CookieOrigin) context.getAttribute(
        if (cookieOrigin == null) {
            this.log.info("CookieOrigin not available in HTTP context");
        HeaderIterator it = response.headerIterator(SM.SET_COOKIE);
        processCookies(it, cookieSpec, cookieOrigin, cookieStore);
        // see if the cookie spec supports cookie versioning.
        if (cookieSpec.getVersion() > 0) {
            // process set-cookie2 headers.
            // Cookie2 will replace equivalent Cookie instances
            it = response.headerIterator(SM.SET_COOKIE2);
            processCookies(it, cookieSpec, cookieOrigin, cookieStore);
    private void processCookies(
            final HeaderIterator iterator, 
            final CookieSpec cookieSpec,
            final CookieOrigin cookieOrigin,
            final CookieStore cookieStore) {
        while (iterator.hasNext()) {
            Header header = iterator.nextHeader();
            try {
                List<Cookie> cookies = cookieSpec.parse(header, cookieOrigin);
                for (Cookie cookie : cookies) {
                    try {
                        cookieSpec.validate(cookie, cookieOrigin);

                        if (this.log.isDebugEnabled()) {
                            this.log.debug("Cookie accepted: \""
                                    + cookie + "\". ");
                    } catch (MalformedCookieException ex) {
                        if (this.log.isWarnEnabled()) {
                            this.log.warn("Cookie rejected: \""
                                    + cookie + "\". " + ex.getMessage());
            } catch (MalformedCookieException ex) {
                if (this.log.isWarnEnabled()) {
                    this.log.warn("Invalid cookie header: \""
                            + header + "\". " + ex.getMessage());

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