/*
* $Id: Debug.java 651946 2008-04-27 13:41:38Z apetrelli $
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.struts2.components;
import com.opensymphony.xwork2.inject.Inject;
import com.opensymphony.xwork2.util.ValueStack;
import com.opensymphony.xwork2.util.reflection.ReflectionProvider;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpServletRequest;
import java.io.Writer;
import java.util.Iterator;
import java.util.Map;
import java.util.ArrayList;
import java.util.List;
import org.apache.struts2.views.annotations.StrutsTag;
import org.apache.struts2.StrutsException;
@StrutsTag(name="debug", tldTagClass="org.apache.struts2.views.jsp.ui.DebugTag",
description="Prints debugging information")
public class Debug extends UIBean {
public static final String TEMPLATE = "debug";
protected ReflectionProvider reflectionProvider;
public Debug(ValueStack stack, HttpServletRequest request, HttpServletResponse response) {
super(stack, request, response);
}
@Inject
public void setReflectionProvider(ReflectionProvider prov) {
this.reflectionProvider = prov;
}
protected String getDefaultTemplate() {
return TEMPLATE;
}
public boolean start(Writer writer) {
boolean result = super.start(writer);
ValueStack stack = getStack();
Iterator iter = stack.getRoot().iterator();
List stackValues = new ArrayList(stack.getRoot().size());
while (iter.hasNext()) {
Object o = iter.next();
Map values;
try {
values = reflectionProvider.getBeanMap(o);
} catch (Exception e) {
throw new StrutsException("Caught an exception while getting the property values of " + o, e);
}
stackValues.add(new DebugMapEntry(o.getClass().getName(), values));
}
addParameter("stackValues", stackValues);
return result;
}
private static class DebugMapEntry implements Map.Entry {
private Object key;
private Object value;
DebugMapEntry(Object key, Object value) {
this.key = key;
this.value = value;
}
public Object getKey() {
return key;
}
public Object getValue() {
return value;
}
public Object setValue(Object newVal) {
Object oldVal = value;
value = newVal;
return oldVal;
}
}
}
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