/* | |
* 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.jasper.compiler; | |
import org.apache.struts2.jasper.JasperException; | |
import org.xml.sax.Attributes; | |
class Dumper { | |
static class DumpVisitor extends Node.Visitor { | |
private int indent = 0; | |
private String getAttributes(Attributes attrs) { | |
if (attrs == null) | |
return ""; | |
StringBuffer buf = new StringBuffer(); | |
for (int i=0; i < attrs.getLength(); i++) { | |
buf.append(" " + attrs.getQName(i) + "=\"" | |
+ attrs.getValue(i) + "\""); | |
} | |
return buf.toString(); | |
} | |
private void printString(String str) { | |
printIndent(); | |
System.out.print(str); | |
} | |
private void printString(String prefix, char[] chars, String suffix) { | |
String str = null; | |
if (chars != null) { | |
str = new String(chars); | |
} | |
printString(prefix, str, suffix); | |
} | |
private void printString(String prefix, String str, String suffix) { | |
printIndent(); | |
if (str != null) { | |
System.out.print(prefix + str + suffix); | |
} else { | |
System.out.print(prefix + suffix); | |
} | |
} | |
private void printAttributes(String prefix, Attributes attrs, | |
String suffix) { | |
printString(prefix, getAttributes(attrs), suffix); | |
} | |
private void dumpBody(Node n) throws JasperException { | |
Node.Nodes page = n.getBody(); | |
if (page != null) { | |
// indent++; | |
page.visit(this); | |
// indent--; | |
} | |
} | |
public void visit(Node.PageDirective n) throws JasperException { | |
printAttributes("<%@ page", n.getAttributes(), "%>"); | |
} | |
public void visit(Node.TaglibDirective n) throws JasperException { | |
printAttributes("<%@ taglib", n.getAttributes(), "%>"); | |
} | |
public void visit(Node.IncludeDirective n) throws JasperException { | |
printAttributes("<%@ include", n.getAttributes(), "%>"); | |
dumpBody(n); | |
} | |
public void visit(Node.Comment n) throws JasperException { | |
printString("<%--", n.getText(), "--%>"); | |
} | |
public void visit(Node.Declaration n) throws JasperException { | |
printString("<%!", n.getText(), "%>"); | |
} | |
public void visit(Node.Expression n) throws JasperException { | |
printString("<%=", n.getText(), "%>"); | |
} | |
public void visit(Node.Scriptlet n) throws JasperException { | |
printString("<%", n.getText(), "%>"); | |
} | |
public void visit(Node.IncludeAction n) throws JasperException { | |
printAttributes("<jsp:include", n.getAttributes(), ">"); | |
dumpBody(n); | |
printString("</jsp:include>"); | |
} | |
public void visit(Node.ForwardAction n) throws JasperException { | |
printAttributes("<jsp:forward", n.getAttributes(), ">"); | |
dumpBody(n); | |
printString("</jsp:forward>"); | |
} | |
public void visit(Node.GetProperty n) throws JasperException { | |
printAttributes("<jsp:getProperty", n.getAttributes(), "/>"); | |
} | |
public void visit(Node.SetProperty n) throws JasperException { | |
printAttributes("<jsp:setProperty", n.getAttributes(), ">"); | |
dumpBody(n); | |
printString("</jsp:setProperty>"); | |
} | |
public void visit(Node.UseBean n) throws JasperException { | |
printAttributes("<jsp:useBean", n.getAttributes(), ">"); | |
dumpBody(n); | |
printString("</jsp:useBean>"); | |
} | |
public void visit(Node.PlugIn n) throws JasperException { | |
printAttributes("<jsp:plugin", n.getAttributes(), ">"); | |
dumpBody(n); | |
printString("</jsp:plugin>"); | |
} | |
public void visit(Node.ParamsAction n) throws JasperException { | |
printAttributes("<jsp:params", n.getAttributes(), ">"); | |
dumpBody(n); | |
printString("</jsp:params>"); | |
} | |
public void visit(Node.ParamAction n) throws JasperException { | |
printAttributes("<jsp:param", n.getAttributes(), ">"); | |
dumpBody(n); | |
printString("</jsp:param>"); | |
} | |
public void visit(Node.NamedAttribute n) throws JasperException { | |
printAttributes("<jsp:attribute", n.getAttributes(), ">"); | |
dumpBody(n); | |
printString("</jsp:attribute>"); | |
} | |
public void visit(Node.JspBody n) throws JasperException { | |
printAttributes("<jsp:body", n.getAttributes(), ">"); | |
dumpBody(n); | |
printString("</jsp:body>"); | |
} | |
public void visit(Node.ELExpression n) throws JasperException { | |
printString( "${" + new String( n.getText() ) + "}" ); | |
} | |
public void visit(Node.CustomTag n) throws JasperException { | |
printAttributes("<" + n.getQName(), n.getAttributes(), ">"); | |
dumpBody(n); | |
printString("</" + n.getQName() + ">"); | |
} | |
public void visit(Node.UninterpretedTag n) throws JasperException { | |
String tag = n.getQName(); | |
printAttributes("<"+tag, n.getAttributes(), ">"); | |
dumpBody(n); | |
printString("</" + tag + ">"); | |
} | |
public void visit(Node.TemplateText n) throws JasperException { | |
printString(new String(n.getText())); | |
} | |
private void printIndent() { | |
for (int i=0; i < indent; i++) { | |
System.out.print(" "); | |
} | |
} | |
} | |
public static void dump(Node n) { | |
try { | |
n.accept(new DumpVisitor()); | |
} catch (JasperException e) { | |
e.printStackTrace(); | |
} | |
} | |
public static void dump(Node.Nodes page) { | |
try { | |
page.visit(new DumpVisitor()); | |
} catch (JasperException e) { | |
e.printStackTrace(); | |
} | |
} | |
} | |