001: /*
002: * The Apache Software License, Version 1.1
003: *
004: * Copyright (c) 1999 The Apache Software Foundation. All rights
005: * reserved.
006: *
007: * Redistribution and use in source and binary forms, with or without
008: * modification, are permitted provided that the following conditions
009: * are met:
010: *
011: * 1. Redistributions of source code must retain the above copyright
012: * notice, this list of conditions and the following disclaimer.
013: *
014: * 2. Redistributions in binary form must reproduce the above copyright
015: * notice, this list of conditions and the following disclaimer in
016: * the documentation and/or other materials provided with the
017: * distribution.
018: *
019: * 3. The end-user documentation included with the redistribution, if
020: * any, must include the following acknowlegement:
021: * "This product includes software developed by the
022: * Apache Software Foundation (http://www.apache.org/)."
023: * Alternately, this acknowlegement may appear in the software itself,
024: * if and wherever such third-party acknowlegements normally appear.
025: *
026: * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
027: * Foundation" must not be used to endorse or promote products derived
028: * from this software without prior written permission. For written
029: * permission, please contact apache@apache.org.
030: *
031: * 5. Products derived from this software may not be called "Apache"
032: * nor may "Apache" appear in their names without prior written
033: * permission of the Apache Group.
034: *
035: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
036: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
037: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
038: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
039: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
040: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
041: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
042: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
043: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
044: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
045: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
046: * SUCH DAMAGE.
047: * ====================================================================
048: *
049: * This software consists of voluntary contributions made by many
050: * individuals on behalf of the Apache Software Foundation. For more
051: * information on the Apache Software Foundation, please see
052: * <http://www.apache.org/>.
053: *
054: */
055: package com.sun.portal.providers.jsp.jasper3.jasper.compiler;
056:
057: import java.util.Hashtable;
058: import com.sun.portal.providers.jsp.jasper3.jasper.JasperException;
059: import java.lang.reflect.Method;
060: import java.util.Enumeration;
061: import java.beans.*;
062:
063: import com.sun.portal.providers.jsp.jasper3.jasper.Constants;
064:
065: /**
066: * Generator for <jsp:setProperty .../>
067: *
068: * @author Mandar Raje
069: */
070: public class SetPropertyGenerator extends GeneratorBase implements
071: ServiceMethodPhase {
072: Hashtable attrs;
073: BeanRepository beanInfo;
074: Mark start;
075:
076: public SetPropertyGenerator(Mark start, Mark stop, Hashtable attrs,
077: BeanRepository beanInfo) {
078: this .attrs = attrs;
079: this .beanInfo = beanInfo;
080: this .start = start;
081: }
082:
083: public void generate(ServletWriter writer, Class phase)
084: throws JasperException {
085: String name = getAttribute("name");
086: String property = getAttribute("property");
087: String param = getAttribute("param");
088: String value = getAttribute("value");
089:
090: if (property.equals("*")) {
091:
092: if (value != null) {
093: String m = Constants
094: .getString("jsp.error.setproperty.invalidSyntax");
095: throw new CompileException(start, m);
096: }
097:
098: // Set all the properties using name-value pairs in the request.
099: writer
100: .println("JspRuntimeLibrary.introspect(pageContext.findAttribute("
101: + "\"" + name + "\"), request);");
102:
103: } else {
104:
105: if (value == null) {
106:
107: // Parameter name specified. If not same as property.
108: if (param == null)
109: param = property;
110:
111: writer
112: .println("JspRuntimeLibrary.introspecthelper(pageContext."
113: + "findAttribute(\""
114: + name
115: + "\"), \""
116: + property
117: + "\", request.getParameter(\""
118: + param
119: + "\"), "
120: + "request, \""
121: + param
122: + "\", false);");
123: } else {
124:
125: // value is a constant.
126: if (!JspUtil.isExpression(value)) {
127: writer
128: .println("JspRuntimeLibrary.introspecthelper(pageContext."
129: + "findAttribute(\""
130: + name
131: + "\"), \""
132: + property
133: + "\",\""
134: + JspUtil.escapeQueryString(value)
135: + "\",null,null, false);");
136: } else {
137:
138: // This requires some careful handling.
139: // int, boolean, ... are not Object(s).
140: writer
141: .println("JspRuntimeLibrary.handleSetProperty(pageContext."
142: + "findAttribute(\""
143: + name
144: + "\"), \""
145: + property
146: + "\","
147: + JspUtil.getExpr(value) + ");");
148: }
149: }
150: }
151: }
152:
153: public String getAttribute(String name) {
154: return (attrs != null) ? (String) attrs.get(name) : null;
155: }
156: }
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