org.exolab.javasource.JAnnotatedElementHelper Maven / Gradle / Ivy
/**
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided
* that the following conditions are met:
*
* 1. Redistributions of source code must retain copyright
* statements and notices. Redistributions must also contain a
* copy of this document.
*
* 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 name "Exolab" must not be used to endorse or promote
* products derived from this Software without prior written
* permission of Intalio, Inc. For written permission,
* please contact [email protected].
*
* 4. Products derived from this Software may not be called "Exolab"
* nor may "Exolab" appear in their names without prior written
* permission of Intalio, Inc. Exolab is a registered
* trademark of Intalio, Inc.
*
* 5. Due credit should be given to the Exolab Project
* (http://www.exolab.org/).
*
* THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
* ``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
* INTALIO, INC. 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.
*
* Copyright 2001-2002 (C) Intalio, Inc. All Rights Reserved.
*
* $Id: JAnnotatedElementHelper
*/
package org.exolab.javasource;
import java.io.PrintWriter;
import java.util.Iterator;
import org.exolab.castor.util.OrderedHashMap;
/**
* Class implements JAnnotatedElement interface on behalf of other classes
* in this package that implement this interface.
*
* @author Andrew Fawcett
*/
public class JAnnotatedElementHelper
implements JAnnotatedElement
{
// NOTE: Removed references to LinkedHashMap as we are trying to maintain
// backward compatibility with JDK 1.2 and 1.3.
/**
* Stores annotations associated with the source element containing this helper
*/
private OrderedHashMap _annotations;
/**
* Creates a JAnnodatedElementHelper
*/
public JAnnotatedElementHelper()
{
super();
}
/* (non-Javadoc)
* @see org.exolab.javasource.JAnnotatedElement#getAnnotation(org.exolab.javasource.JAnnotationType)
*/
public JAnnotation getAnnotation(JAnnotationType annotationType) {
if (_annotations == null) return null;
return (JAnnotation) _annotations.get(annotationType.getName());
}
/* (non-Javadoc)
* @see org.exolab.javasource.JAnnotatedElement#getAnnotations()
*/
public JAnnotation[] getAnnotations() {
if (_annotations == null)
return new JAnnotation[0];
return (JAnnotation[]) _annotations.values().toArray(new JAnnotation[] {});
}
/* (non-Javadoc)
* @see org.exolab.javasource.JAnnotatedElement#isAnnotationPresent(org.exolab.javasource.JAnnotation)
*/
public boolean isAnnotationPresent(JAnnotationType annotationType) {
if (_annotations != null) {
return _annotations.containsKey(annotationType.getName());
}
return false;
}
/* (non-Javadoc)
* @see org.exolab.javasource.JAnnotatedElement#addAnnotation(org.exolab.javasource.JAnnotation)
*/
public void addAnnotation(JAnnotation annotation) {
if(isAnnotationPresent(annotation.getAnnotationType()))
throw new IllegalArgumentException("Annotation for '"+annotation.getAnnotationType().getName()+"' already added.");
String annotationType = annotation.getAnnotationType().getName();
if (_annotations == null) {
_annotations = new OrderedHashMap();
}
_annotations.put(annotationType, annotation);
}
/* (non-Javadoc)
* @see org.exolab.javasource.JAnnotatedElement#removeAnnotation(org.exolab.javasource.JAnnotation)
*/
public JAnnotation removeAnnotation(JAnnotationType annotationType) {
if(isAnnotationPresent(annotationType)==false)
throw new IllegalArgumentException("Annotation for '"+annotationType.getName()+"' not present.");
return (JAnnotation) _annotations.remove(annotationType.getName());
}
/* (non-Javadoc)
* @see org.exolab.javasource.JAnnotatedElement#hasAnnotations()
*/
public boolean hasAnnotations() {
if (_annotations != null) {
return _annotations.size()>0;
}
return false;
}
/**
* Outputs the list of annotations maintained by this object
* @param jsw
*/
public boolean printAnnotations(JSourceWriter jsw)
{
boolean printed = false;
if (_annotations != null) {
Iterator annotations = _annotations.values().iterator();
while(annotations.hasNext())
{
JAnnotation annotation = (JAnnotation) annotations.next();
annotation.print(jsw);
jsw.writeln();
printed = true;
}
}
return printed;
}
/**
* Test
* @param args
*/
public static void main(String[] args)
{
JSourceWriter jsw = new JSourceWriter(new PrintWriter(System.out));
{
// Class annotation
JClass lollipop = new JClass("Lollipop");
JAnnotationType endorsersType = new JAnnotationType("org.xyz.Endorsers");
JAnnotation endorsers = new JAnnotation(endorsersType);
endorsers.setValue(new String[] { "\"Children\"", "\"Unscrupulous dentists\""});
lollipop.addAnnotation(endorsers);
lollipop.print(jsw);
}
jsw.writeln();
jsw.writeln();
{
// Class annotation (multiple)
JAnnotationType copyrightType = new JAnnotationType("org.xyz.Copyright");
JAnnotation copyright = new JAnnotation(copyrightType);
copyright.setValue("\"2002 Yoyodyne Propulsion Systems, Inc., All rights reserved.\"");
JClass lollipop = new JClass("Lollipop");
JAnnotationType endorsersType = new JAnnotationType("org.xyz.Endorsers");
JAnnotation endorsers = new JAnnotation(endorsersType);
endorsers.setValue(new String[] { "\"Children\"", "\"Unscrupulous dentists\""});
lollipop.addAnnotation(endorsers);
lollipop.addAnnotation(copyright);
lollipop.print(jsw);
}
jsw.writeln();
jsw.writeln();
{
// Interface annotation
JInterface lollipop = new JInterface("Lollipop");
JAnnotationType endorsersType = new JAnnotationType("org.xyz.Endorsers");
JAnnotation endorsers = new JAnnotation(endorsersType);
endorsers.setValue(new String[] { "\"Children\"", "\"Unscrupulous dentists\""});
lollipop.addAnnotation(endorsers);
lollipop.print(jsw);
}
jsw.writeln();
jsw.writeln();
{
// Field annotation (JClass)
JClass timeMachine = new JClass("EventProducer");
JAnnotationType suppressWarningsType = new JAnnotationType("org.xyz.SuppressWarnings");
JAnnotation suppressWarnings = new JAnnotation(suppressWarningsType);
JField field = new JField(new JClass("DocumentHandler"), "documentHandler");
field.addAnnotation(suppressWarnings);
timeMachine.addField(field);
timeMachine.print(jsw);
}
jsw.writeln();
jsw.writeln();
{
// Field annotation (JInterface)
JInterface timeMachine = new JInterface("TimeMachine");
JAnnotationType suppressWarningsType = new JAnnotationType("SuppressWarnings");
JAnnotation suppressWarnings = new JAnnotation(suppressWarningsType);
JField field = new JField(new JClass("DocumentHandler"), "documentHandler");
field.getModifiers().setStatic(true);
field.getModifiers().makePublic();
field.addAnnotation(suppressWarnings);
timeMachine.addField(field);
timeMachine.print(jsw);
}
jsw.writeln();
jsw.writeln();
{
// Method annotation (JClass)
JClass timeMachine = new JClass("TimeMachine");
JAnnotationType requestForEnhancementType = new JAnnotationType("org.xyz.RequestForEnhancement");
JAnnotation requestForEnhancement = new JAnnotation(requestForEnhancementType);
requestForEnhancement.setElementValue("id", "2868724");
requestForEnhancement.setElementValue("sysopsis", "\"Provide time-travel functionality\"");
requestForEnhancement.setElementValue("enginer", "\"Mr. Peabody\"");
requestForEnhancement.setElementValue("date", "\"4/1/2004\"");
JMethod travelThroughTime = new JMethod(null, "travelThroughTime");
travelThroughTime.addAnnotation(requestForEnhancement);
travelThroughTime.addParameter(new JParameter(new JClass("Date"), "date"));
timeMachine.addMethod(travelThroughTime);
timeMachine.print(jsw);
}
jsw.writeln();
jsw.writeln();
{
// Method annotation (JInterface)
JInterface timeMachine = new JInterface("TimeMachine");
JAnnotationType requestForEnhancementType = new JAnnotationType("RequestForEnhancement");
JAnnotation requestForEnhancement = new JAnnotation(requestForEnhancementType);
requestForEnhancement.setElementValue("id", "2868724");
requestForEnhancement.setElementValue("sysopsis", "\"Provide time-travel functionality\"");
requestForEnhancement.setElementValue("enginer", "\"Mr. Peabody\"");
requestForEnhancement.setElementValue("date", "\"4/1/2004\"");
JMethodSignature travelThroughTime = new JMethodSignature("travelThroughTime", null);
travelThroughTime.addAnnotation(requestForEnhancement);
travelThroughTime.addParameter(new JParameter(new JClass("Date"), "date"));
timeMachine.addMethod(travelThroughTime);
timeMachine.print(jsw);
}
jsw.writeln();
jsw.writeln();
{
// Constructor annotation
JClass lollipop = new JClass("Lollipop");
JAnnotationType endorsersType = new JAnnotationType("Endorsers");
JAnnotation endorsers = new JAnnotation(endorsersType);
endorsers.setValue(new String[] { "\"Children\"", "\"Unscrupulous dentists\""});
JConstructor constructor = new JConstructor(lollipop);
constructor.addAnnotation(endorsers);
lollipop.addConstructor(constructor);
lollipop.print(jsw);
}
jsw.writeln();
jsw.writeln();
{
// Method parameter annotation (JInterface)
JInterface timeMachine = new JInterface("EventProducer");
JAnnotationType suppressWarningsType = new JAnnotationType("org.xyz.SuppressWarnings");
JAnnotation suppressWarnings = new JAnnotation(suppressWarningsType);
JMethodSignature travelThroughTime = new JMethodSignature("produceEvents", null);
JParameter parameter = new JParameter(new JClass("DocumentHandler"), "documentHandler");
parameter.addAnnotation(suppressWarnings);
travelThroughTime.addParameter(parameter);
JParameter parameter1 = new JParameter(JType.Boolean, "asDocument");
travelThroughTime.addParameter(parameter1);
timeMachine.addMethod(travelThroughTime);
timeMachine.print(jsw);
}
jsw.writeln();
jsw.writeln();
{
// Constructor parameter annotation
JClass lollipop = new JClass("Lollipop");
JConstructor constructor = new JConstructor(lollipop);
JAnnotationType suppressWarningsType = new JAnnotationType("SuppressWarnings");
JAnnotation suppressWarnings = new JAnnotation(suppressWarningsType);
JParameter parameter = new JParameter(new JClass("DocumentHandler"), "documentHandler");
parameter.addAnnotation(suppressWarnings);
constructor.addParameter(parameter);
JParameter parameter1 = new JParameter(JType.Boolean, "asDocument");
constructor.addParameter(parameter1);
lollipop.addConstructor(constructor);
lollipop.print(jsw);
}
jsw.flush();
}
}
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