[jboss-cvs] JBossAS SVN: r98137 - projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-jsp-api/src/main/javax/servlet/jsp/el.
jboss-cvs-commits at lists.jboss.org
jboss-cvs-commits at lists.jboss.org
Tue Dec 22 11:34:16 EST 2009
Author: jaikiran
Date: 2009-12-22 11:34:16 -0500 (Tue, 22 Dec 2009)
New Revision: 98137
Removed:
projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-jsp-api/src/main/javax/servlet/jsp/el/ImplicitObjectELResolver.java
Log:
Autoversioning commit: a non-deltaV client made a change to
/projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-jsp-api/src/main/javax/servlet/jsp/el/ImplicitObjectELResolver.java
Deleted: projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-jsp-api/src/main/javax/servlet/jsp/el/ImplicitObjectELResolver.java
===================================================================
--- projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-jsp-api/src/main/javax/servlet/jsp/el/ImplicitObjectELResolver.java 2009-12-22 16:34:09 UTC (rev 98136)
+++ projects/javaee/tags/jboss-javaee-parent-6.0.0-alpha-1/jboss-jsp-api/src/main/javax/servlet/jsp/el/ImplicitObjectELResolver.java 2009-12-22 16:34:16 UTC (rev 98137)
@@ -1,1263 +0,0 @@
-/*
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
- *
- * Copyright 1997-2008 Sun Microsystems, Inc. All rights reserved.
- *
- * The contents of this file are subject to the terms of either the GNU
- * General Public License Version 2 only ("GPL") or the Common Development
- * and Distribution License("CDDL") (collectively, the "License"). You
- * may not use this file except in compliance with the License. You can obtain
- * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
- * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
- * language governing permissions and limitations under the License.
- *
- * When distributing the software, include this License Header Notice in each
- * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
- * Sun designates this particular file as subject to the "Classpath" exception
- * as provided by Sun in the GPL Version 2 section of the License file that
- * accompanied this code. If applicable, add the following below the License
- * Header, with the fields enclosed by brackets [] replaced by your own
- * identifying information: "Portions Copyrighted [year]
- * [name of copyright owner]"
- *
- * Contributor(s):
- *
- * If you wish your version of this file to be governed by only the CDDL or
- * only the GPL Version 2, indicate your decision by adding "[Contributor]
- * elects to include this software in this distribution under the [CDDL or GPL
- * Version 2] license." If you don't indicate a single choice of license, a
- * recipient has the option to distribute your version of this file under
- * either the CDDL, the GPL Version 2 or to extend the choice of license to
- * its licensees as provided above. However, if you add GPL Version 2 code
- * and therefore, elected the GPL Version 2 license, then the option applies
- * only if the new code is made subject to such option by the copyright
- * holder.
- *
- *
- * This file incorporates work covered by the following copyright and
- * permission notice:
- *
- * Copyright 2004 The Apache Software Foundation
- *
- * Licensed 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 javax.servlet.jsp.el;
-
-import java.beans.FeatureDescriptor;
-import java.util.Iterator;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Enumeration;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-
-import javax.servlet.ServletContext;
-import javax.servlet.http.Cookie;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.jsp.PageContext;
-import javax.servlet.jsp.JspContext;
-
-import javax.el.PropertyNotWritableException;
-import javax.el.ELContext;
-import javax.el.ELResolver;
-
-/**
- * Defines variable resolution behavior for the EL implicit objects
- * defined in the JSP specification.
- *
- * <p>The following variables are resolved by this <code>ELResolver</code>,
- * as per the JSP specification:
- * <ul>
- * <li><code>pageContext</code> - the <code>PageContext</code> object.</li>
- * <li><code>pageScope</code> - a <code>Map</code> that maps page-scoped
- * attribute names to their values.</li>
- * <li><code>requestScope</code> - a <code>Map</code> that maps
- * request-scoped attribute names to their values.</li>
- * <li><code>sessionScope</code> - a <code>Map</code> that maps
- * session-scoped attribute names to their values.</li>
- * <li><code>applicationScope</code> - a <code>Map</code> that maps
- * application-scoped attribute names to their values.</li>
- * <li><code>param</code> - a <code>Map</code> that maps parameter
- * names to a single String parameter value (obtained by calling
- * <code>ServletRequest.getParameter(String name)).</li>
- * <li><code>paramValues</code> - a <code>Map</code> that maps parameter
- * names to a <code>String[]</code> of all values for that
- * parameter (obtained by calling
- * <code>ServletRequest.getParameterValues(String name))</code>.</li>
- * <li><code>header</code> - a <code>Map</code> that maps header names
- * to a single String header value (obtained by calling
- * <code>HttpServletRequest.getHeader(String name))</code>.</li>
- * <li><code>headerValues</code> - a <code>Map</code> that maps header
- * names to a <code>String[]</code> of all values for that header
- * (obtained by calling
- * <code>HttpServletRequest.getHeaders(String))</code>.</li>
- * <li><code>cookie</code> - a <code>Map</code> that maps cookie names
- * to a single <code>Cookie</code> object. Cookies are retrieved
- * according to the semantics of
- * <code>HttpServletRequest.getCookies()</code>. If the same name
- * is shared by multiple cookies, an implementation must use the
- * first one encountered in the array of <code>Cookie</code> objects
- * returned by the <code>getCookies()</code> method. However, users
- * of the cookie implicit object must be aware that the ordering
- * of cookies is currently unspecified in the servlet
- * specification.</li>
- * <li><code>initParam</code> - a <code>Map</code> that maps context
- * initialization parameter names to their String parameter
- * value (obtained by calling
- * <code>ServletContext.getInitParameter(String name))</code>.</li>
- * </ul></p>
- *
- * @see javax.el.ELResolver
- * @since JSP 2.1
- */
-public class ImplicitObjectELResolver extends ELResolver {
-
- /**
- * If the base object is <code>null</code>, and the property matches
- * the name of a JSP implicit object, returns the implicit object.
- *
- * <p>The <code>propertyResolved</code> property of the
- * <code>ELContext</code> object must be set to <code>true</code> by
- * this resolver before returning if an implicit object is matched. If
- * this property is not <code>true</code> after this method is called,
- * the caller should ignore the return value.</p>
- *
- * @param context The context of this evaluation.
- * @param base Only <code>null</code> is handled by this resolver.
- * Other values will result in an immediate return.
- * @param property The name of the implicit object to resolve.
- * @return If the <code>propertyResolved</code> property of
- * <code>ELContext</code> was set to <code>true</code>, then
- * the implicit object; otherwise undefined.
- * @throws NullPointerException if context is <code>null</code>
- * @throws ELException if an exception was thrown while performing
- * the property or variable resolution. The thrown exception
- * must be included as the cause property of this exception, if
- * available.
- */
- public Object getValue(ELContext context,
- Object base,
- Object property) {
-
- if (context == null) {
- throw new NullPointerException();
- }
-
- if (base != null) {
- return null;
- }
-
- PageContext ctxt = (PageContext)context.getContext(JspContext.class);
-
- if ("pageContext".equals(property)) {
- context.setPropertyResolved(true);
- return ctxt;
- }
- ImplicitObjects implicitObjects =
- ImplicitObjects.getImplicitObjects(ctxt);
- if ("pageScope".equals(property)) {
- context.setPropertyResolved(true);
- return implicitObjects.getPageScopeMap();
- }
- if ("requestScope".equals(property)) {
- context.setPropertyResolved(true);
- return implicitObjects.getRequestScopeMap();
- }
- if ("sessionScope".equals(property)) {
- context.setPropertyResolved(true);
- return implicitObjects.getSessionScopeMap();
- }
- if ("applicationScope".equals (property)) {
- context.setPropertyResolved(true);
- return implicitObjects.getApplicationScopeMap ();
- }
- if ("param".equals (property)) {
- context.setPropertyResolved(true);
- return implicitObjects.getParamMap();
- }
- if ("paramValues".equals (property)) {
- context.setPropertyResolved(true);
- return implicitObjects.getParamsMap();
- }
- if ("header".equals (property)) {
- context.setPropertyResolved(true);
- return implicitObjects.getHeaderMap();
- }
- if ("headerValues".equals (property)) {
- context.setPropertyResolved(true);
- return implicitObjects.getHeadersMap();
- }
- if ("initParam".equals (property)) {
- context.setPropertyResolved(true);
- return implicitObjects.getInitParamMap ();
- }
- if ("cookie".equals (property)) {
- context.setPropertyResolved(true);
- return implicitObjects.getCookieMap ();
- }
- return null;
- }
-
- /**
- * If the base object is <code>null</code>, and the property matches
- * the name of a JSP implicit object, returns <code>null</code> to
- * indicate that no types are ever accepted to <code>setValue()</code>.
- *
- * <p>The <code>propertyResolved</code> property of the
- * <code>ELContext</code> object must be set to <code>true</code> by
- * this resolver before returning if an implicit object is matched. If
- * this property is not <code>true</code> after this method is called,
- * the caller should ignore the return value.</p>
- *
- * @param context The context of this evaluation.
- * @param base Only <code>null</code> is handled by this resolver.
- * Other values will result in an immediate return.
- * @param property The name of the implicit object to resolve.
- * @return If the <code>propertyResolved</code> property of
- * <code>ELContext</code> was set to <code>true</code>, then
- * <code>null</code>; otherwise undefined.
- * @throws NullPointerException if context is <code>null</code>
- * @throws ELException if an exception was thrown while performing
- * the property or variable resolution. The thrown exception
- * must be included as the cause property of this exception, if
- * available.
- */
- public Class getType(ELContext context,
- Object base,
- Object property) {
-
- if (context == null) {
- throw new NullPointerException();
- }
-
- if ((base == null) && ("pageContext".equals(property) ||
- "pageScope".equals(property)) ||
- "requestScope".equals(property) ||
- "sessionScope".equals(property) ||
- "applicationScope".equals (property) ||
- "param".equals (property) ||
- "paramValues".equals (property) ||
- "header".equals (property) ||
- "headerValues".equals (property) ||
- "initParam".equals (property) ||
- "cookie".equals (property)) {
- context.setPropertyResolved(true);
- }
- return null;
- }
-
- /**
- * If the base object is <code>null</code>, and the property matches
- * the name of a JSP implicit object, throws
- * <code>PropertyNotWritableException</code> to indicate that implicit
- * objects cannot be overwritten.
- *
- * <p>The <code>propertyResolved</code> property of the
- * <code>ELContext</code> object must be set to <code>true</code> by
- * this resolver before returning if an implicit object is matched. If
- * this property is not <code>true</code> after this method is called,
- * the caller should ignore the return value.</p>
- *
- * @param context The context of this evaluation.
- * @param base Only <code>null</code> is handled by this resolver.
- * Other values will result in an immediate return.
- * @param property The name of the implicit object.
- * @param val The value to be associated with the implicit object.
- * @throws NullPointerException if context is <code>null</code>.
- * @throws PropertyNotWritableException always thrown, if the
- * implicit object name is recognized by this resolver.
- * @throws ELException if an exception was thrown while performing
- * the property or variable resolution. The thrown exception
- * must be included as the cause property of this exception, if
- * available.
- */
- public void setValue(ELContext context,
- Object base,
- Object property,
- Object val) {
-
- if (context == null) {
- throw new NullPointerException();
- }
-
- if ((base == null) && ("pageContext".equals(property) ||
- "pageScope".equals(property)) ||
- "requestScope".equals(property) ||
- "sessionScope".equals(property) ||
- "applicationScope".equals (property) ||
- "param".equals (property) ||
- "paramValues".equals (property) ||
- "header".equals (property) ||
- "headerValues".equals (property) ||
- "initParam".equals (property) ||
- "cookie".equals (property)) {
- throw new PropertyNotWritableException();
- }
- }
-
- /**
- * If the base object is <code>null</code>, and the property matches
- * the name of a JSP implicit object, returns <code>true</code>
- * to indicate that implicit objects cannot be overwritten.
- *
- * <p>The <code>propertyResolved</code> property of the
- * <code>ELContext</code> object must be set to <code>true</code> by
- * this resolver before returning if an implicit object is matched. If
- * this property is not <code>true</code> after this method is called,
- * the caller should ignore the return value.</p>
- *
- * @param context The context of this evaluation.
- * @param base Only <code>null</code> is handled by this resolver.
- * Other values will result in an immediate return.
- * @param property The name of the implicit object.
- * @return If the <code>propertyResolved</code> property of
- * <code>ELContext</code> was set to <code>true</code>, then
- * <code>true</code>; otherwise undefined.
- * @throws NullPointerException if context is <code>null</code>.
- * @throws ELException if an exception was thrown while performing
- * the property or variable resolution. The thrown exception
- * must be included as the cause property of this exception, if
- * available.
- */
- public boolean isReadOnly(ELContext context,
- Object base,
- Object property) {
- if (context == null) {
- throw new NullPointerException();
- }
-
- if ((base == null) && ("pageContext".equals(property) ||
- "pageScope".equals(property)) ||
- "requestScope".equals(property) ||
- "sessionScope".equals(property) ||
- "applicationScope".equals (property) ||
- "param".equals (property) ||
- "paramValues".equals (property) ||
- "header".equals (property) ||
- "headerValues".equals (property) ||
- "initParam".equals (property) ||
- "cookie".equals (property)) {
- context.setPropertyResolved(true);
- return true;
- }
- return false; // Doesn't matter
- }
-
- /**
- * If the base object is <code>null</code>, and the property matches
- * the name of a JSP implicit object, returns an <code>Iterator</code>
- * containing <code>FeatureDescriptor</code> objects with information
- * about each JSP implicit object resolved by this resolver. Otherwise,
- * returns <code>null</code>.
- *
- * <p>The <code>Iterator</code> returned must contain one instance of
- * {@link java.beans.FeatureDescriptor} for each of the EL implicit objects
- * defined by the JSP spec. Each info object contains information about
- * a single implicit object, and is initialized as follows:
- * <dl>
- * <li>displayName - The name of the implicit object.</li>
- * <li>name - Same as displayName property.</li>
- * <li>shortDescription - A suitable description for the implicit
- * object. Will vary by implementation.</li>
- * <li>expert - <code>false</code></li>
- * <li>hidden - <code>false</code></li>
- * <li>preferred - <code>true</code></li>
- * </dl>
- * In addition, the following named attributes must be set in the
- * returned <code>FeatureDescriptor</code>s:
- * <dl>
- * <li>{@link ELResolver#TYPE} - The runtime type of the implicit object.</li>
- * <li>{@link ELResolver#RESOLVABLE_AT_DESIGN_TIME} - <code>true</code>.</li>
- * </dl></p>
- *
- * @param context The context of this evaluation.
- * @param base Only <code>null</code> is handled by this resolver.
- * Other values will result in a <code>null</code> return value.
- * @return An <code>Iterator</code> containing one
- * <code>FeatureDescriptor</code> object for each implicit object, or
- * <code>null</code> if <code>base</code> is not <code>null</code>.
- */
- public Iterator<FeatureDescriptor> getFeatureDescriptors(
- ELContext context,
- Object base) {
- ArrayList<FeatureDescriptor> list =
- new ArrayList<FeatureDescriptor>(11);
-
- // pageContext
- FeatureDescriptor descriptor = new FeatureDescriptor();
- descriptor.setName("pageContext");
- descriptor.setDisplayName("pageContext");
- //descriptor.setShortDescription("");
- descriptor.setExpert(false);
- descriptor.setHidden(false);
- descriptor.setPreferred(true);
- descriptor.setValue("type", javax.servlet.jsp.PageContext.class);
- descriptor.setValue("resolvableAtDesignTime", Boolean.TRUE);
- list.add(descriptor);
-
- // pageScope
- descriptor = new FeatureDescriptor();
- descriptor.setName("pageScope");
- descriptor.setDisplayName("pageScope");
- //descriptor.setShortDescription("");
- descriptor.setExpert(false);
- descriptor.setHidden(false);
- descriptor.setPreferred(true);
- descriptor.setValue("type", Map.class);
- descriptor.setValue("resolvableAtDesignTime", Boolean.TRUE);
- list.add(descriptor);
-
- // requestScope
- descriptor = new FeatureDescriptor();
- descriptor.setName("requestScope");
- descriptor.setDisplayName("requestScope");
- //descriptor.setShortDescription("");
- descriptor.setExpert(false);
- descriptor.setHidden(false);
- descriptor.setPreferred(true);
- descriptor.setValue("type", Map.class);
- descriptor.setValue("resolvableAtDesignTime", Boolean.TRUE);
- list.add(descriptor);
-
- // sessionScope
- descriptor = new FeatureDescriptor();
- descriptor.setName("sessionScope");
- descriptor.setDisplayName("sessionScope");
- //descriptor.setShortDescription("");
- descriptor.setExpert(false);
- descriptor.setHidden(false);
- descriptor.setPreferred(true);
- descriptor.setValue("type", Map.class);
- descriptor.setValue("resolvableAtDesignTime", Boolean.TRUE);
- list.add(descriptor);
-
- // applicationScope
- descriptor = new FeatureDescriptor();
- descriptor.setName("applicationScope");
- descriptor.setDisplayName("applicationScope");
- //descriptor.setShortDescription("");
- descriptor.setExpert(false);
- descriptor.setHidden(false);
- descriptor.setPreferred(true);
- descriptor.setValue("type", Map.class);
- descriptor.setValue("resolvableAtDesignTime", Boolean.TRUE);
- list.add(descriptor);
-
- // param
- descriptor = new FeatureDescriptor();
- descriptor.setName("param");
- descriptor.setDisplayName("param");
- //descriptor.setShortDescription("");
- descriptor.setExpert(false);
- descriptor.setHidden(false);
- descriptor.setPreferred(true);
- descriptor.setValue("type", Map.class);
- descriptor.setValue("resolvableAtDesignTime", Boolean.TRUE);
- list.add(descriptor);
-
- // paramValues
- descriptor = new FeatureDescriptor();
- descriptor.setName("paramValues");
- descriptor.setDisplayName("paramValues");
- //descriptor.setShortDescription("");
- descriptor.setExpert(false);
- descriptor.setHidden(false);
- descriptor.setPreferred(true);
- descriptor.setValue("type", Map.class);
- descriptor.setValue("resolvableAtDesignTime", Boolean.TRUE);
- list.add(descriptor);
-
- // header
- descriptor = new FeatureDescriptor();
- descriptor.setName("header");
- descriptor.setDisplayName("header");
- //descriptor.setShortDescription("");
- descriptor.setExpert(false);
- descriptor.setHidden(false);
- descriptor.setPreferred(true);
- descriptor.setValue("type", Map.class);
- descriptor.setValue("resolvableAtDesignTime", Boolean.TRUE);
- list.add(descriptor);
-
- // headerValues
- descriptor = new FeatureDescriptor();
- descriptor.setName("headerValues");
- descriptor.setDisplayName("headerValues");
- //descriptor.setShortDescription("");
- descriptor.setExpert(false);
- descriptor.setHidden(false);
- descriptor.setPreferred(true);
- descriptor.setValue("type", Map.class);
- descriptor.setValue("resolvableAtDesignTime", Boolean.TRUE);
- list.add(descriptor);
-
- // cookie
- descriptor = new FeatureDescriptor();
- descriptor.setName("cookie");
- descriptor.setDisplayName("cookie");
- //descriptor.setShortDescription("");
- descriptor.setExpert(false);
- descriptor.setHidden(false);
- descriptor.setPreferred(true);
- descriptor.setValue("type", Map.class);
- descriptor.setValue("resolvableAtDesignTime", Boolean.TRUE);
- list.add(descriptor);
-
- // initParam
- descriptor = new FeatureDescriptor();
- descriptor.setName("initParam");
- descriptor.setDisplayName("initParam");
- //descriptor.setShortDescription("");
- descriptor.setExpert(false);
- descriptor.setHidden(false);
- descriptor.setPreferred(true);
- descriptor.setValue("type", Map.class);
- descriptor.setValue("resolvableAtDesignTime", Boolean.TRUE);
- list.add(descriptor);
-
- return list.iterator();
- }
-
- /**
- * If the base object is <code>null</code>, returns
- * <code>String.class</code>. Otherwise, returns <code>null</code>.
- *
- * @param context The context of this evaluation.
- * @param base Only <code>null</code> is handled by this resolver.
- * Other values will result in a <code>null</code> return value.
- * @return <code>null</code> if base is not <code>null</code>; otherwise
- * <code>String.class</code>.
- */
- public Class<String> getCommonPropertyType(ELContext context,
- Object base) {
- if (base == null) {
- return String.class;
- }
- return null;
- }
-
- // XXX - I moved this class from commons-el to an inner class here
- // so that we do not have a dependency from the JSP APIs into commons-el.
- // There might be a better way to do this.
- /**
- * <p>This class is used to generate the implicit Map and List objects
- * that wrap various elements of the PageContext. It also returns the
- * correct implicit object for a given implicit object name.
- *
- * @author Nathan Abramson - Art Technology Group
- **/
- private static class ImplicitObjects
- {
- //-------------------------------------
- // Constants
- //-------------------------------------
-
-
- // XXX - This probably needs to change, now that this is in a
- // standard pkg.
- static final String sAttributeName =
- "org.apache.taglibs.standard.ImplicitObjects";
-
- //-------------------------------------
- // Member variables
- //-------------------------------------
-
- PageContext mContext;
- Map mPage;
- Map mRequest;
- Map mSession;
- Map mApplication;
- Map mParam;
- Map mParams;
- Map mHeader;
- Map mHeaders;
- Map mInitParam;
- Map mCookie;
-
- //-------------------------------------
- /**
- *
- * Constructor
- **/
- public ImplicitObjects (PageContext pContext)
- {
- mContext = pContext;
- }
-
- //-------------------------------------
- /**
- *
- * Finds the ImplicitObjects associated with the PageContext,
- * creating it if it doesn't yet exist.
- **/
- public static ImplicitObjects getImplicitObjects (PageContext pContext)
- {
- ImplicitObjects objs =
- (ImplicitObjects)
- pContext.getAttribute (sAttributeName,
- PageContext.PAGE_SCOPE);
- if (objs == null) {
- objs = new ImplicitObjects (pContext);
- pContext.setAttribute (sAttributeName,
- objs,
- PageContext.PAGE_SCOPE);
- }
- return objs;
- }
-
- //-------------------------------------
- /**
- *
- * Returns the Map that "wraps" page-scoped attributes
- **/
- public Map getPageScopeMap ()
- {
- if (mPage == null) {
- mPage = createPageScopeMap (mContext);
- }
- return mPage;
- }
-
- //-------------------------------------
- /**
- *
- * Returns the Map that "wraps" request-scoped attributes
- **/
- public Map getRequestScopeMap ()
- {
- if (mRequest == null) {
- mRequest = createRequestScopeMap (mContext);
- }
- return mRequest;
- }
-
- //-------------------------------------
- /**
- *
- * Returns the Map that "wraps" session-scoped attributes
- **/
- public Map getSessionScopeMap ()
- {
- if (mSession == null) {
- mSession = createSessionScopeMap (mContext);
- }
- return mSession;
- }
-
- //-------------------------------------
- /**
- *
- * Returns the Map that "wraps" application-scoped attributes
- **/
- public Map getApplicationScopeMap ()
- {
- if (mApplication == null) {
- mApplication = createApplicationScopeMap (mContext);
- }
- return mApplication;
- }
-
- //-------------------------------------
- /**
- *
- * Returns the Map that maps parameter name to a single parameter
- * values.
- **/
- public Map getParamMap ()
- {
- if (mParam == null) {
- mParam = createParamMap (mContext);
- }
- return mParam;
- }
-
- //-------------------------------------
- /**
- *
- * Returns the Map that maps parameter name to an array of parameter
- * values.
- **/
- public Map getParamsMap ()
- {
- if (mParams == null) {
- mParams = createParamsMap (mContext);
- }
- return mParams;
- }
-
- //-------------------------------------
- /**
- *
- * Returns the Map that maps header name to a single header
- * values.
- **/
- public Map getHeaderMap ()
- {
- if (mHeader == null) {
- mHeader = createHeaderMap (mContext);
- }
- return mHeader;
- }
-
- //-------------------------------------
- /**
- *
- * Returns the Map that maps header name to an array of header
- * values.
- **/
- public Map getHeadersMap ()
- {
- if (mHeaders == null) {
- mHeaders = createHeadersMap (mContext);
- }
- return mHeaders;
- }
-
- //-------------------------------------
- /**
- *
- * Returns the Map that maps init parameter name to a single init
- * parameter values.
- **/
- public Map getInitParamMap ()
- {
- if (mInitParam == null) {
- mInitParam = createInitParamMap (mContext);
- }
- return mInitParam;
- }
-
- //-------------------------------------
- /**
- *
- * Returns the Map that maps cookie name to the first matching
- * Cookie in request.getCookies().
- **/
- public Map getCookieMap ()
- {
- if (mCookie == null) {
- mCookie = createCookieMap (mContext);
- }
- return mCookie;
- }
-
- //-------------------------------------
- // Methods for generating wrapper maps
- //-------------------------------------
- /**
- *
- * Creates the Map that "wraps" page-scoped attributes
- **/
- public static Map createPageScopeMap (PageContext pContext)
- {
- final PageContext context = pContext;
- return new EnumeratedMap ()
- {
- public Enumeration enumerateKeys ()
- {
- return context.getAttributeNamesInScope
- (PageContext.PAGE_SCOPE);
- }
-
- public Object getValue (Object pKey)
- {
- if (pKey instanceof String) {
- return context.getAttribute
- ((String) pKey,
- PageContext.PAGE_SCOPE);
- }
- else {
- return null;
- }
- }
-
- public boolean isMutable ()
- {
- return true;
- }
- };
- }
-
- //-------------------------------------
- /**
- *
- * Creates the Map that "wraps" request-scoped attributes
- **/
- public static Map createRequestScopeMap (PageContext pContext)
- {
- final PageContext context = pContext;
- return new EnumeratedMap ()
- {
- public Enumeration enumerateKeys ()
- {
- return context.getAttributeNamesInScope
- (PageContext.REQUEST_SCOPE);
- }
-
- public Object getValue (Object pKey)
- {
- if (pKey instanceof String) {
- return context.getAttribute
- ((String) pKey,
- PageContext.REQUEST_SCOPE);
- }
- else {
- return null;
- }
- }
-
- public boolean isMutable ()
- {
- return true;
- }
- };
- }
-
- //-------------------------------------
- /**
- *
- * Creates the Map that "wraps" session-scoped attributes
- **/
- public static Map createSessionScopeMap (PageContext pContext)
- {
- final PageContext context = pContext;
- return new EnumeratedMap ()
- {
- public Enumeration enumerateKeys ()
- {
- return context.getAttributeNamesInScope
- (PageContext.SESSION_SCOPE);
- }
-
- public Object getValue (Object pKey)
- {
- if (pKey instanceof String) {
- return context.getAttribute
- ((String) pKey,
- PageContext.SESSION_SCOPE);
- }
- else {
- return null;
- }
- }
-
- public boolean isMutable ()
- {
- return true;
- }
- };
- }
-
- //-------------------------------------
- /**
- *
- * Creates the Map that "wraps" application-scoped attributes
- **/
- public static Map createApplicationScopeMap (PageContext pContext)
- {
- final PageContext context = pContext;
- return new EnumeratedMap ()
- {
- public Enumeration enumerateKeys ()
- {
- return context.getAttributeNamesInScope
- (PageContext.APPLICATION_SCOPE);
- }
-
- public Object getValue (Object pKey)
- {
- if (pKey instanceof String) {
- return context.getAttribute
- ((String) pKey,
- PageContext.APPLICATION_SCOPE);
- }
- else {
- return null;
- }
- }
-
- public boolean isMutable ()
- {
- return true;
- }
- };
- }
-
- //-------------------------------------
- /**
- *
- * Creates the Map that maps parameter name to single parameter
- * value.
- **/
- public static Map createParamMap (PageContext pContext)
- {
- final HttpServletRequest request =
- (HttpServletRequest) pContext.getRequest ();
- return new EnumeratedMap ()
- {
- public Enumeration enumerateKeys ()
- {
- return request.getParameterNames ();
- }
-
- public Object getValue (Object pKey)
- {
- if (pKey instanceof String) {
- return request.getParameter ((String) pKey);
- }
- else {
- return null;
- }
- }
-
- public boolean isMutable ()
- {
- return false;
- }
- };
- }
-
- //-------------------------------------
- /**
- *
- * Creates the Map that maps parameter name to an array of parameter
- * values.
- **/
- public static Map createParamsMap (PageContext pContext)
- {
- final HttpServletRequest request =
- (HttpServletRequest) pContext.getRequest ();
- return new EnumeratedMap ()
- {
- public Enumeration enumerateKeys ()
- {
- return request.getParameterNames ();
- }
-
- public Object getValue (Object pKey)
- {
- if (pKey instanceof String) {
- return request.getParameterValues ((String) pKey);
- }
- else {
- return null;
- }
- }
-
- public boolean isMutable ()
- {
- return false;
- }
- };
- }
-
- //-------------------------------------
- /**
- *
- * Creates the Map that maps header name to single header
- * value.
- **/
- public static Map createHeaderMap (PageContext pContext)
- {
- final HttpServletRequest request =
- (HttpServletRequest) pContext.getRequest ();
- return new EnumeratedMap ()
- {
- public Enumeration enumerateKeys ()
- {
- return request.getHeaderNames ();
- }
-
- public Object getValue (Object pKey)
- {
- if (pKey instanceof String) {
- return request.getHeader ((String) pKey);
- }
- else {
- return null;
- }
- }
-
- public boolean isMutable ()
- {
- return false;
- }
- };
- }
-
- //-------------------------------------
- /**
- *
- * Creates the Map that maps header name to an array of header
- * values.
- **/
- public static Map createHeadersMap (PageContext pContext)
- {
- final HttpServletRequest request =
- (HttpServletRequest) pContext.getRequest ();
- return new EnumeratedMap ()
- {
- public Enumeration enumerateKeys ()
- {
- return request.getHeaderNames ();
- }
-
- public Object getValue (Object pKey)
- {
- if (pKey instanceof String) {
- // Drain the header enumeration
- List l = new ArrayList ();
- Enumeration e = request.getHeaders ((String) pKey);
- if (e != null) {
- while (e.hasMoreElements ()) {
- l.add (e.nextElement ());
- }
- }
- String [] ret = (String []) l.toArray (new String [l.size ()]);
- return ret;
- }
- else {
- return null;
- }
- }
-
- public boolean isMutable ()
- {
- return false;
- }
- };
- }
-
- //-------------------------------------
- /**
- *
- * Creates the Map that maps init parameter name to single init
- * parameter value.
- **/
- public static Map createInitParamMap (PageContext pContext)
- {
- final ServletContext context = pContext.getServletContext ();
- return new EnumeratedMap ()
- {
- public Enumeration enumerateKeys ()
- {
- return context.getInitParameterNames ();
- }
-
- public Object getValue (Object pKey)
- {
- if (pKey instanceof String) {
- return context.getInitParameter ((String) pKey);
- }
- else {
- return null;
- }
- }
-
- public boolean isMutable ()
- {
- return false;
- }
- };
- }
-
- //-------------------------------------
- /**
- *
- * Creates the Map that maps cookie name to the first matching
- * Cookie in request.getCookies().
- **/
- public static Map createCookieMap (PageContext pContext)
- {
- // Read all the cookies and construct the entire map
- HttpServletRequest request = (HttpServletRequest) pContext.getRequest ();
- Cookie [] cookies = request.getCookies ();
- Map ret = new HashMap ();
- for (int i = 0; cookies != null && i < cookies.length; i++) {
- Cookie cookie = cookies [i];
- if (cookie != null) {
- String name = cookie.getName ();
- if (!ret.containsKey (name)) {
- ret.put (name, cookie);
- }
- }
- }
- return ret;
- }
-
- //-------------------------------------
- }
-
- // XXX - I moved this class from commons-el to an inner class here
- // so that we do not have a dependency from the JSP APIs into commons-el.
- // There might be a better way to do this.
- /**
- * <p>This is a Map implementation driven by a data source that only
- * provides an enumeration of keys and a getValue(key) method. This
- * class must be subclassed to implement those methods.
- *
- * <p>Some of the methods may incur a performance penalty that
- * involves enumerating the entire data source. In these cases, the
- * Map will try to save the results of that enumeration, but only if
- * the underlying data source is immutable.
- *
- * @author Nathan Abramson - Art Technology Group
- **/
- private static abstract class EnumeratedMap
- implements Map
- {
- //-------------------------------------
- // Member variables
- //-------------------------------------
-
- Map mMap;
-
- //-------------------------------------
- public void clear ()
- {
- throw new UnsupportedOperationException ();
- }
-
- //-------------------------------------
- public boolean containsKey (Object pKey)
- {
- return getValue (pKey) != null;
- }
-
- //-------------------------------------
- public boolean containsValue (Object pValue)
- {
- return getAsMap ().containsValue (pValue);
- }
-
- //-------------------------------------
- public Set entrySet ()
- {
- return getAsMap ().entrySet ();
- }
-
- //-------------------------------------
- public Object get (Object pKey)
- {
- return getValue (pKey);
- }
-
- //-------------------------------------
- public boolean isEmpty ()
- {
- return !enumerateKeys ().hasMoreElements ();
- }
-
- //-------------------------------------
- public Set keySet ()
- {
- return getAsMap ().keySet ();
- }
-
- //-------------------------------------
- public Object put (Object pKey, Object pValue)
- {
- throw new UnsupportedOperationException ();
- }
-
- //-------------------------------------
- public void putAll (Map pMap)
- {
- throw new UnsupportedOperationException ();
- }
-
- //-------------------------------------
- public Object remove (Object pKey)
- {
- throw new UnsupportedOperationException ();
- }
-
- //-------------------------------------
- public int size ()
- {
- return getAsMap ().size ();
- }
-
- //-------------------------------------
- public Collection values ()
- {
- return getAsMap ().values ();
- }
-
- //-------------------------------------
- // Abstract methods
- //-------------------------------------
- /**
- *
- * Returns an enumeration of the keys
- **/
- public abstract Enumeration enumerateKeys ();
-
- //-------------------------------------
- /**
- *
- * Returns true if it is possible for this data source to change
- **/
- public abstract boolean isMutable ();
-
- //-------------------------------------
- /**
- *
- * Returns the value associated with the given key, or null if not
- * found.
- **/
- public abstract Object getValue (Object pKey);
-
- //-------------------------------------
- /**
- *
- * Converts the MapSource to a Map. If the map is not mutable, this
- * is cached
- **/
- public Map getAsMap ()
- {
- if (mMap != null) {
- return mMap;
- }
- else {
- Map m = convertToMap ();
- if (!isMutable ()) {
- mMap = m;
- }
- return m;
- }
- }
-
- //-------------------------------------
- /**
- *
- * Converts to a Map
- **/
- Map convertToMap ()
- {
- Map ret = new HashMap ();
- for (Enumeration e = enumerateKeys (); e.hasMoreElements (); ) {
- Object key = e.nextElement ();
- Object value = getValue (key);
- ret.put (key, value);
- }
- return ret;
- }
-
- //-------------------------------------
- }
-}
-
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