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Struts example source code file (CookieInterceptor.java)
The Struts CookieInterceptor.java source code/* * $Id: CookieInterceptor.java 747075 2009-02-23 16:38:47Z rgielen $ * * 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. */ package org.apache.struts2.interceptor; import java.util.*; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServletRequest; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionContext; import com.opensymphony.xwork2.ActionInvocation; import com.opensymphony.xwork2.interceptor.AbstractInterceptor; import com.opensymphony.xwork2.util.TextParseUtil; import com.opensymphony.xwork2.util.ValueStack; import com.opensymphony.xwork2.util.logging.Logger; import com.opensymphony.xwork2.util.logging.LoggerFactory; /** * <!-- START SNIPPET: description --> * * The aim of this intercepter is to set values in the stack/action based on cookie name/value * of interest. <p/> * * If an asterisk is present in cookiesName parameter, it will be assume that * all cookies name are to be injected into struts' action, even though * cookiesName is comma-separated by other values, e.g. (cookie1,*,cookie2). <p/> * * If cookiesName is left empty it will assume that no cookie will be injected * into Struts' action. <p/> * * If an asterisk is present in cookiesValue parameter, it will assume that all * cookies name irrespective of its value will be injected into Struts' action so * long as the cookie name matches those specified in cookiesName parameter.<p/> * * If cookiesValue is left empty it will assume that all cookie that match the cookieName * parameter will be injected into Struts' action.<p/> * * The action could implements {@link CookiesAware} in order to have a {@link Map} * of filtered cookies set into it. <p/> * * <!-- END SNIPPET: description --> * * * <!-- START SNIPPET: parameters --> * * <ul> * <li>cookiesName (mandatory) - Name of cookies to be injected into the action. If more * than one cookie name is desired it could be comma-separated. * If all cookies name is desired, it could simply be *, an asterik. * When many cookies name are comma-separated either of the cookie * that match the name in the comma-separated list will be qualified.</li> * <li>cookiesValue (mandatory) - Value of cookies that if its name matches cookieName attribute * and its value matched this, will be injected into Struts' * action. If more than one cookie name is desired it could be * comma-separated. If left empty, it will assume any value would * be ok. If more than one value is specified (comma-separated) * it will assume a match if either value is matched. * </ul> * * <!-- END SNIPPET: parameters --> * * * <!-- START SNIPPET: extending --> * * <ul> * populateCookieValueIntoStack - this method will decide if this cookie value is qualified to be * populated into the value stack (hence into the action itself) * injectIntoCookiesAwareAction - this method will inject selected cookies (as a java.util.Map) into * action that implements {@link CookiesAware}. * </ul> * * <!-- END SNIPPET: extending --> * * <pre> * <!-- START SNIPPET: example --> * * <!-- * This example will inject cookies named either 'cookie1' or 'cookie2' whose * value could be either 'cookie1value' or 'cookie2value' into Struts' action. * --> * <action ... > * <interceptor-ref name="cookie"> * <param name="cookiesName">cookie1, cookie2</param> * <param name="cookiesValue">cookie1value, cookie2value</param> * </interceptor-ref> * .... * </action> * * * <!-- * This example will inject cookies named either 'cookie1' or 'cookie2' * regardless of their value into Struts' action. * --> * <action ... > * <interceptor-ref name="cookie"> * <param name="cookiesName">cookie1, cookie2</param> * <param name="cookiesValue">*</param> * <interceptor-ref> * ... * </action> * * * <!-- * This example will inject cookies named either 'cookie1' with value * 'cookie1value' or 'cookie2' with value 'cookie2value' into Struts' * action. * --> * <action ... > * <interceptor-ref name="cookie"> * <param name="cookiesName">cookie1</param> * <param name="cookiesValue">cookie1value</param> * </interceptor-ref> * <interceptor-ref name="cookie"> * <param name="cookiesName"<cookie2</param> * <param name="cookiesValue">cookie2value</param> * </interceptor-ref> * .... * </action> * * <!-- * This example will inject any cookies regardless of its value into * Struts' action. * --> * <action ... > * <interceptor-ref name="cookie"> * <param name="cookiesName">*</param> * <param name="cookiesValue">*</param> * </interceptor-ref> * ... * </action> * * <!-- END SNIPPET: example --> * </pre> * * @see CookiesAware */ public class CookieInterceptor extends AbstractInterceptor { private static final long serialVersionUID = 4153142432948747305L; private static final Logger LOG = LoggerFactory.getLogger(CookieInterceptor.class); private Set<String> cookiesNameSet = Collections.emptySet(); private Set<String> cookiesValueSet = Collections.emptySet(); /** * Set the <code>cookiesName which if matched will allow the cookie * to be injected into action, could be comma-separated string. * * @param cookiesName */ public void setCookiesName(String cookiesName) { if (cookiesName != null) this.cookiesNameSet = TextParseUtil.commaDelimitedStringToSet(cookiesName); } /** * Set the <code>cookiesValue which if matched (together with matching * cookiesName) will caused the cookie to be injected into action, could be * comma-separated string. * * @param cookiesValue */ public void setCookiesValue(String cookiesValue) { if (cookiesValue != null) this.cookiesValueSet = TextParseUtil.commaDelimitedStringToSet(cookiesValue); } public String intercept(ActionInvocation invocation) throws Exception { if (LOG.isDebugEnabled()) LOG.debug("start interception"); // contains selected cookies final Map<String, String> cookiesMap = new LinkedHashMap Other Struts examples (source code examples)Here is a short list of links related to this Struts CookieInterceptor.java source code file: |
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