001: /*
002: * Copyright (c) 2003 The Visigoth Software Society. All rights
003: * reserved.
004: *
005: * Redistribution and use in source and binary forms, with or without
006: * modification, are permitted provided that the following conditions
007: * are met:
008: *
009: * 1. Redistributions of source code must retain the above copyright
010: * notice, this list of conditions and the following disclaimer.
011: *
012: * 2. Redistributions in binary form must reproduce the above copyright
013: * notice, this list of conditions and the following disclaimer in
014: * the documentation and/or other materials provided with the
015: * distribution.
016: *
017: * 3. The end-user documentation included with the redistribution, if
018: * any, must include the following acknowledgement:
019: * "This product includes software developed by the
020: * Visigoth Software Society (http://www.visigoths.org/)."
021: * Alternately, this acknowledgement may appear in the software itself,
022: * if and wherever such third-party acknowledgements normally appear.
023: *
024: * 4. Neither the name "FreeMarker", "Visigoth", nor any of the names of the
025: * project contributors may be used to endorse or promote products derived
026: * from this software without prior written permission. For written
027: * permission, please contact visigoths@visigoths.org.
028: *
029: * 5. Products derived from this software may not be called "FreeMarker" or "Visigoth"
030: * nor may "FreeMarker" or "Visigoth" appear in their names
031: * without prior written permission of the Visigoth Software Society.
032: *
033: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
034: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
035: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
036: * DISCLAIMED. IN NO EVENT SHALL THE VISIGOTH SOFTWARE SOCIETY OR
037: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
038: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
039: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
040: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
041: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
042: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
043: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
044: * SUCH DAMAGE.
045: * ====================================================================
046: *
047: * This software consists of voluntary contributions made by many
048: * individuals on behalf of the Visigoth Software Society. For more
049: * information on the Visigoth Software Society, please see
050: * http://www.visigoths.org/
051: */
052:
053: package freemarker.ext.servlet;
054:
055: import javax.servlet.http.HttpServletRequest;
056: import javax.servlet.http.HttpServletResponse;
057: import java.util.*;
058: import freemarker.template.*;
059:
060: /**
061: * TemplateHashModel wrapper for a HttpServletRequest attributes.
062: * @author Attila Szegedi
063: * @version $Id: HttpRequestHashModel.java,v 1.16 2005/05/05 07:49:58 vsajip Exp $
064: */
065: public final class HttpRequestHashModel implements TemplateHashModelEx {
066: private final HttpServletRequest request;
067: private final HttpServletResponse response;
068: private final ObjectWrapper wrapper;
069:
070: public HttpRequestHashModel(HttpServletRequest request,
071: ObjectWrapper wrapper) {
072: this (request, null, wrapper);
073: }
074:
075: public HttpRequestHashModel(HttpServletRequest request,
076: HttpServletResponse response, ObjectWrapper wrapper) {
077: this .request = request;
078: this .response = response;
079: this .wrapper = wrapper;
080: }
081:
082: public TemplateModel get(String key) throws TemplateModelException {
083: return wrapper.wrap(request.getAttribute(key));
084: }
085:
086: public boolean isEmpty() {
087: return !request.getAttributeNames().hasMoreElements();
088: }
089:
090: public int size() {
091: int result = 0;
092: for (Enumeration enumeration = request.getAttributeNames(); enumeration
093: .hasMoreElements();) {
094: enumeration.nextElement();
095: ++result;
096: }
097: return result;
098: }
099:
100: public TemplateCollectionModel keys() {
101: ArrayList keys = new ArrayList();
102: for (Enumeration enumeration = request.getAttributeNames(); enumeration
103: .hasMoreElements();) {
104: keys.add(enumeration.nextElement());
105: }
106: return new SimpleCollection(keys.iterator());
107: }
108:
109: public TemplateCollectionModel values() {
110: ArrayList values = new ArrayList();
111: for (Enumeration enumeration = request.getAttributeNames(); enumeration
112: .hasMoreElements();) {
113: values.add(request.getAttribute((String) enumeration
114: .nextElement()));
115: }
116: return new SimpleCollection(values.iterator(), wrapper);
117: }
118:
119: public HttpServletRequest getRequest() {
120: return request;
121: }
122:
123: public HttpServletResponse getResponse() {
124: return response;
125: }
126:
127: public ObjectWrapper getObjectWrapper() {
128: return wrapper;
129: }
130: }
|