| /* |
| * Copyright 1999,2004 The Apache Software Foundation. |
| * |
| * Licensed 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.jasper.compiler; |
| |
| import org.xml.sax.Attributes; |
| import org.apache.jasper.JasperException; |
| |
| 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(); |
| } |
| } |
| } |
| |