portletrequest.java

portal越来越流行了

/*  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.
 */
/*
 * NOTE: this source code is based on an early draft version of JSR 286 and not intended for product
 * implementations. This file may change or vanish in the final version of the JSR 286 specification.
 */
/*
 * This source code implements specifications defined by the Java
 * Community Process. In order to remain compliant with the specification
 * DO NOT add / change / or delete method signatures!
 */
/**
  * Copyright 2006 IBM Corporation.
  */

package javax.portlet;

import java.util.Locale;


/**
 * The <CODE>PortletRequest</CODE> defines the base interface to provide client
 * request information to a portlet. The portlet container uses two specialized
 * versions of this interface when invoking a portlet, <CODE>ActionRequest</CODE>
 * and <CODE>RenderRequest</CODE>. The portlet container creates these objects and 
 * passes them as  arguments to the portlet's <CODE>processAction</CODE> and
 * <CODE>render</CODE> methods.
 * 
 * @see ActionRequest
 * @see RenderRequest
 */
public interface PortletRequest
{
    
  /** Used to retrieve user information attributes with the 
   * <code>getAttribute</code> call. The user information is returned 
   * as a <code>Map</code> object. The portlet must define the 
   * user information attribute it is interested in inside the 
   * <code>user-attribute</code> section of the deployment descriptor.
   * If an attribute is not supported
   * by the current runtime system it will not show up in the user
   * attribute map.<BR>
   * If the user-attribute is supported by the runtime system, but not 
   * defined for a particular user, then for that user the attribute 
   * exists in the returned map and the attribute has a <code>null</code> value.
   * <p>
   * If the user-attribute is not defined for the current user it
   * will not show up in the Map.
   * <p>
   * The value is <code>javax.portlet.userinfo</code>.
   */
  public static final String USER_INFO = "javax.portlet.userinfo";

  /**
   * Used to retrieve an instance of the <code>javax.ccpp.Profile</code>
   * with the <code>getAttribute</code> call. The returned profile is based
   * on the current portlet request and may contain additional CC/PP 
   * information set by the portal / portlet container.   
   * <p>
   * The value is <code>javax.portlet.ccpp</code>.
   * 
   * @since 2.0
   */
  public static final String CCPP_PROFILE = "javax.portlet.ccpp";

  /**
   * String identifier for Basic authentication. Value "BASIC".
   */
  public static final String BASIC_AUTH = "BASIC";

  /**
   * String identifier for Form based authentication. Value "FORM".
   */
  public static final String FORM_AUTH = "FORM";

  /**
   * String identifier for Certification based authentication. Value "CLIENT_CERT".
   */
  public static final String CLIENT_CERT_AUTH = "CLIENT_CERT";

  /**
   * String identifier for Digest based authentication. Value "DIGEST".
   */
  public static final String DIGEST_AUTH = "DIGEST";

  /**
   * P3P user information constants.
   * <p>
   * Note: these are only available in the Java SE 5.0 supported version
   * of the API.
   * 
   * @since 2.0
   */
  public enum P3PUserInfos {
      USER_BDATE_YMD_YEAR("user.bdate.ymd.year"), USER_BDATE_YMD_MONTH("user.bdate.ymd.month"),
      USER_BDATE_YMD_DAY("user.bdate.ymd.day"), USER_BDATE_HMS_HOUR("user.bdate.hms.hour"),
	  USER_BDATE_HMS_MINUTE("user.bdate.hms.minute"), USER_BDATE_HMS_SECOND("user.bdate.hms.second"),
	  USER_BDATE_FRACTIONSECOND("user.bdate.fractionsecond"), USER_BDATE_TIMEZONE("user.bdate.timezone"),
	  USER_GENDER("user.gender"), USER_EMPLOYER("user.employer"), 
      USER_DEPARTMENT("user.department"), USER_JOBTITLE("user.jobtitle"), 
      USER_NAME_PREFIX("user.name.prefix"), USER_NAME_GIVEN("user.name.given"), 
      USER_NAME_FAMILY("user.name.family"), USER_NAME_MIDDLE("user.name.middle"),
      USER_NAME_SUFFIX("user.name.suffix"), USER_NAME_NICKNAME("user.name.nickName"),
      USER_LOGIN_ID("user.login.id"),
      USER_HOMEINFO_POSTAL_NAME("user.home-info.postal.name"), 
      USER_HOMEINFO_POSTAL_STREET("user.home-info.postal.street"),
      USER_HOMEINFO_POSTAL_CITY("user.home-info.postal.city"), 
      USER_HOMEINFO_POSTAL_STATEPROV("user.home-info.postal.stateprov"),
      USER_HOMEINFO_POSTAL_POSTALCODE("user.home-info.postal.postalcode"),
      USER_HOMEINFO_POSTAL_COUNTRY("user.home-info.postal.country"), 
      USER_HOMEINFO_POSTAL_ORGANIZATION("user.home-info.postal.organization"), 
      USER_HOMEINFO_TELECOM_TELEPHONE_INTCODE("user.home-info.telecom.telephone.intcode"),
      USER_HOMEINFO_TELECOM_TELEPHONE_LOCCODE("user.home-info.telecom.telephone.loccode"),
      USER_HOMEINFO_TELECOM_TELEPHONE_NUMBER("user.home-info.telecom.telephone.number"),
      USER_HOMEINFO_TELECOM_TELEPHONE_EXT("user.home-info.telecom.telephone.ext"),
      USER_HOMEINFO_TELECOM_TELEPHONE_COMMENT("user.home-info.telecom.telephone.comment"),
      USER_HOMEINFO_TELECOM_FAX_INTCODE("user.home-info.telecom.fax.intcode"),
      USER_HOMEINFO_TELECOM_FAX_LOCCODE("user.home-info.telecom.fax.loccode"),
      USER_HOMEINFO_TELECOM_FAX_NUMBER("user.home-info.telecom.fax.number"),
      USER_HOMEINFO_TELECOM_FAX_EXT("user.home-info.telecom.fax.ext"),
      USER_HOMEINFO_TELECOM_FAX_COMMENT("user.home-info.telecom.fax.comment"),
      USER_HOMEINFO_TELECOM_MOBILE_INTCODE("user.home-info.telecom.mobile.intcode"),
      USER_HOMEINFO_TELECOM_MOBILE_LOCCODE("user.home-info.telecom.mobile.loccode"),
      USER_HOMEINFO_TELECOM_MOBILE_NUMBER("user.home-info.telecom.mobile.number"),
      USER_HOMEINFO_TELECOM_MOBILE_EXT("user.home-info.telecom.mobile.ext"),
      USER_HOMEINFO_TELECOM_MOBILE_COMMENT("user.home-info.telecom.mobile.comment"),
      USER_HOMEINFO_TELECOM_PAGER_INTCODE("user.home-info.telecom.pager.intcode"),
      USER_HOMEINFO_TELECOM_PAGER_LOCCODE("user.home-info.telecom.pager.loccode"),
      USER_HOMEINFO_TELECOM_PAGER_NUMBER("user.home-info.telecom.pager.number"),
      USER_HOMEINFO_TELECOM_PAGER_EXT("user.home-info.telecom.pager.ext"),
      USER_HOMEINFO_TELECOM_PAGER_COMMENT("user.home-info.telecom.pager.comment"),
      USER_HOMEINFO_ONLINE_EMAIL("user.home-info.online.email"),
      USER_HOMEINFO_ONLINE_URI("user.home-info.online.uri"),
      USER_BUSINESSINFO_POSTAL_NAME("user.business-info.postal.name"), 
      USER_BUSINESSINFO_POSTAL_STREET("user.business-info.postal.street"),
      USER_BUSINESSINFO_POSTAL_CITY("user.business-info.postal.city"), 
      USER_BUSINESSINFO_POSTAL_STATEPROV("user.business-info.postal.stateprov"),
      USER_BUSINESSINFO_POSTAL_POSTALCODE("user.business-info.postal.postalcode"),
      USER_BUSINESSINFO_POSTAL_COUNTRY("user.business-info.postal.country"), 
      USER_BUSINESSINFO_POSTAL_ORGANIZATION("user.business-info.postal.organization"), 
      USER_BUSINESSINFO_TELECOM_TELEPHONE_INTCODE("user.business-info.telecom.telephone.intcode"),
      USER_BUSINESSINFO_TELECOM_TELEPHONE_LOCCODE("user.business-info.telecom.telephone.loccode"),
      USER_BUSINESSINFO_TELECOM_TELEPHONE_NUMBER("user.business-info.telecom.telephone.number"),
      USER_BUSINESSINFO_TELECOM_TELEPHONE_EXT("user.business-info.telecom.telephone.ext"),
      USER_BUSINESSINFO_TELECOM_TELEPHONE_COMMENT("user.business-info.telecom.telephone.comment"),
      USER_BUSINESSINFO_TELECOM_FAX_INTCODE("user.business-info.telecom.fax.intcode"),
      USER_BUSINESSINFO_TELECOM_FAX_LOCCODE("user.business-info.telecom.fax.loccode"),
      USER_BUSINESSINFO_TELECOM_FAX_NUMBER("user.business-info.telecom.fax.number"),
      USER_BUSINESSINFO_TELECOM_FAX_EXT("user.business-info.telecom.fax.ext"),
      USER_BUSINESSINFO_TELECOM_FAX_COMMENT("user.business-info.telecom.fax.comment"),
      USER_BUSINESSINFO_TELECOM_MOBILE_INTCODE("user.business-info.telecom.mobile.intcode"),
      USER_BUSINESSINFO_TELECOM_MOBILE_LOCCODE("user.business-info.telecom.mobile.loccode"),
      USER_BUSINESSINFO_TELECOM_MOBILE_NUMBER("user.business-info.telecom.mobile.number"),
      USER_BUSINESSINFO_TELECOM_MOBILE_EXT("user.business-info.telecom.mobile.ext"),
      USER_BUSINESSINFO_TELECOM_MOBILE_COMMENT("user.business-info.telecom.mobile.comment"),
      USER_BUSINESSINFO_TELECOM_PAGER_INTCODE("user.business-info.telecom.pager.intcode"),
      USER_BUSINESSINFO_TELECOM_PAGER_LOCCODE("user.business-info.telecom.pager.loccode"),
      USER_BUSINESSINFO_TELECOM_PAGER_NUMBER("user.business-info.telecom.pager.number"),
      USER_BUSINESSINFO_TELECOM_PAGER_EXT("user.business-info.telecom.pager.ext"),
      USER_BUSINESSINFO_TELECOM_PAGER_COMMENT("user.business-info.telecom.pager.comment"),
      USER_BUSINESSINFO_ONLINE_EMAIL("user.business-info.online.email"),
      USER_BUSINESSINFO_ONLINE_URI("user.business-info.online.uri");
      P3PUserInfos(String value) {this.value = value; }
      private final String value;
      public String toString() {return value;}
  }
  
  /**
   * String identifier for the portlet action lifecycle phase. In this
   * phase the portlet request and response are from type
   * <code>ActionRequest</code> and <code>ActionResponse</code>.
   * <p>
   * The value of the constant is <code>ACTION_PHASE</code>.
   * 
   * @since 2.0
   */
  public static final String ACTION_PHASE = "ACTION_PHASE";
  
  /**
   * String identifier for the portlet event lifecycle phase. In this
   * phase the portlet request and response are from type
   * <code>EventRequest</code> and <code>EventResponse</code>.
   * <p>
   * The value of the constant is <code>EVENT_PHASE</code>.
   * 
   * @since 2.0
   */
  public static final String EVENT_PHASE = "EVENT_PHASE";
  
  /**
   * String identifier for the portlet render lifecycle phase. In this
   * phase the portlet request and response are from type
   * <code>RenderRequest</code> and <code>RenderResponse</code>.
   * <p>
   * The value of the constant is <code>RENDER_PHASE</code>.
   * 
   * @since 2.0
   */
  public static final String RENDER_PHASE = "RENDER_PHASE";
  
  /**
   * String identifier for the portlet resource serving lifecycle phase. In this
   * phase the portlet request and response are from type
   * <code>ResourceRequest</code> and <code>ResourceResponse</code>.
   * <p>
   * The value of the constant is <code>RESOURCE_PHASE</code>.
   * 
   * @since 2.0
   */
  public static final String RESOURCE_PHASE = "RESOURCE_PHASE";
    
  /**
   * Provides the portlet lifecycle phase of the current request
   * as request attribute.
   * <p>
   * Valid values are: ACTION_PHASE, EVENT_PHASE, RENDER_PHASE,
   * RESOURCE_SERVING_PHASE.
   * <p>
   * The value of the constant is <code>javax.portlet.lifecylce_phase</code>.
   * 
   * @since 2.0
   */
  public static final String LIFECYCLE_PHASE = "javax.portlet.lifecycle_phase";
  
  
  /**
   * The RENDER_PART portlet request attribute is set by portals
   * that are streaming based and therefore need to split the
   * render phase into two parts: first the RENDER_HEADERS part
   * where the portlet should only set the header related data
   * and the portlet title, and second the RENDER_MARKUP part
   * in which the portlet should produce its markup.
   * <p>
   * Non-streaming portals will not set this attribute and thus
   * the portlet should set headers, portlet title and produce
   * its markup in a single render request.
   * <p>
   * The value of the constant is <code>javax.portlet.render_part</code>.
   * 
   *  @since 2.0
   */
  public static final String RENDER_PART = "javax.portlet.render_part";
  
  /**
   * The RENDER_HEADERS is a possible value of the RENDER_PART
   * request attribute and denotes that the portlet should set
   * the intended headers and the portlet title of this render
   * request.
   * <p>
   * The value of the constant is <code>RENDER_HEADERS</code>.
   * 
   * @since 2.0
   */
  public static final String RENDER_HEADERS = "RENDER_HEADERS";

  /**
   * The RENDER_MARKUP is a possible value of the RENDER_PART
   * request attribute and denotes that the portlet should
   * produce its markup for this render request.
   * <p>
   * The value of the constant is <code>RENDER_MARKUP</code>.
   * 
   * @since 2.0
   */
  public static final String RENDER_MARKUP = "RENDER_MARKUP";

  /**
   * The action scope ID that the portlet container uses
   * for storing the current action scope as render parameter
   * if the <code>javax.portlet.actionScopedRequestAttributes</code>
   * container runtime option is used by the portlet.
   * <p>
   * The value is <code>javax.portlet.as</code>.
   * @since 2.0
   */
  public static final String ACTION_SCOPE_ID = "javax.portlet.as";
  
  
  /**
   * Returns true, if the given window state is valid
   * to be set for this portlet in the context
   * of the current request.
   *
   * @param  state    window state to checked
   *
   * @return    true, if it is valid for this portlet
   *             in this request to change to the
   *            given window state
   *
   */
  public boolean isWindowStateAllowed(WindowState state);


/**
   * Returns true, if the given portlet mode is a valid
   * one to set for this portlet  in the context
   * of the current request.
   *
   * @param  mode    portlet mode to check
   *
   * @return    true, if it is valid for this portlet
   *             in this request to change to the