costin 01/06/05 22:53:17
Added: jasper34/generator/org/apache/jasper34/jsptree
TagInfoImpl.java
Log:
This used to be TagCache. Now the information about the tag is stored
in the TagInfoImpl, a lot of code will be much simpler ( and it's symetrical
with TagLibraryInfoImpl )
Revision Changes Path
1.1
jakarta-tomcat-jasper/jasper34/generator/org/apache/jasper34/jsptree/TagInfoImpl.java
Index: TagInfoImpl.java
===================================================================
/*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.jasper34.jsptree;
import java.util.Hashtable;
import java.lang.reflect.Method;
import java.beans.BeanInfo;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.beans.IntrospectionException;
import org.apache.jasper34.core.*;
import org.apache.jasper34.runtime.JasperException;
import org.apache.jasper34.parser.*;
import javax.servlet.jsp.tagext.*;
/**
* Informations about a tag.
*
* A simple cache to hold results of one-time evaluation for a custom
* tag. ( used to be called TagCache )
*
* @author Anil K. Vijendran ([EMAIL PROTECTED])
* @author Costin Manolache
*/
public class TagInfoImpl extends TagInfo {
String shortTagName;
Hashtable methodMaps;
BeanInfo tagClassInfo;
Class tagHandlerClass;
public TagInfoImpl(String tagName,
String tagClassName,
String bodycontent,
String infoString,
TagLibraryInfo taglib,
TagExtraInfo tagExtraInfo,
TagAttributeInfo[] attributeInfo) {
super( tagName, tagClassName, bodycontent,
infoString, taglib, tagExtraInfo, attributeInfo );
this.shortTagName = tagName;
this.methodMaps = new Hashtable();
}
private void addSetterMethod(String attrName, Method m) {
methodMaps.put(attrName, m);
}
public Method getSetterMethod(String attrName) {
return (Method) methodMaps.get(attrName);
}
public void setTagHandlerClass(Class tagHandlerClass)
throws JasperException
{
try {
this.tagClassInfo = Introspector.getBeanInfo(tagHandlerClass);
this.tagHandlerClass = tagHandlerClass;
PropertyDescriptor[] pd = tagClassInfo.getPropertyDescriptors();
for(int i = 0; i < pd.length; i++) {
/* FIXME: why is the check for null below needed?? -akv */
/*
FIXME: should probably be checking for things like
pageContext, bodyContent, and parent here -akv
*/
if (pd[i].getWriteMethod() != null)
addSetterMethod(pd[i].getName(), pd[i].getWriteMethod());
}
} catch (IntrospectionException ex) {
throw new
JasperException(Constants.getString("jsp.error.unable.to_introspect",
new Object[] {
tagHandlerClass.getName(),
ex.getMessage()
}
));
}
}
public Class getTagHandlerClass() {
return tagHandlerClass;
}
BeanInfo getTagClassInfo() {
return tagClassInfo;
}
}
