| /* |
| * 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. |
| */ |
| /* |
| * $Id$ |
| */ |
| package org.apache.xalan.trace; |
| |
| import org.apache.xalan.templates.ElemTemplateElement; |
| import org.apache.xalan.transformer.TransformerImpl; |
| import org.apache.xml.utils.QName; |
| |
| import org.w3c.dom.Attr; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| /** |
| * Parent class of events generated for tracing the |
| * progress of the XSL processor. |
| * @xsl.usage advanced |
| */ |
| public class TracerEvent implements java.util.EventListener |
| { |
| |
| /** |
| * The node in the style tree where the event occurs. |
| */ |
| public final ElemTemplateElement m_styleNode; |
| |
| /** |
| * The XSLT processor instance. |
| */ |
| public final TransformerImpl m_processor; |
| |
| /** |
| * The current context node. |
| */ |
| public final Node m_sourceNode; |
| |
| /** |
| * The current mode. |
| */ |
| public final QName m_mode; |
| |
| /** |
| * Create an event originating at the given node of the style tree. |
| * @param processor The XSLT TransformerFactory. |
| * @param sourceNode The current context node. |
| * @param mode The current mode. |
| * @param styleNode The stylesheet element that is executing. |
| */ |
| public TracerEvent(TransformerImpl processor, Node sourceNode, QName mode, |
| ElemTemplateElement styleNode) |
| { |
| |
| this.m_processor = processor; |
| this.m_sourceNode = sourceNode; |
| this.m_mode = mode; |
| this.m_styleNode = styleNode; |
| } |
| |
| /** |
| * Returns a string representation of the node. |
| * The string returned for elements will contain the element name |
| * and any attributes enclosed in angle brackets. |
| * The string returned for attributes will be of form, "name=value." |
| * |
| * @param n any DOM node. Must not be null. |
| * |
| * @return a string representation of the given node. |
| */ |
| public static String printNode(Node n) |
| { |
| |
| String r = n.hashCode() + " "; |
| |
| if (n instanceof Element) |
| { |
| r += "<" + n.getNodeName(); |
| |
| Node c = n.getFirstChild(); |
| |
| while (null != c) |
| { |
| if (c instanceof Attr) |
| { |
| r += printNode(c) + " "; |
| } |
| |
| c = c.getNextSibling(); |
| } |
| |
| r += ">"; |
| } |
| else |
| { |
| if (n instanceof Attr) |
| { |
| r += n.getNodeName() + "=" + n.getNodeValue(); |
| } |
| else |
| { |
| r += n.getNodeName(); |
| } |
| } |
| |
| return r; |
| } |
| |
| /** |
| * Returns a string representation of the node list. |
| * The string will contain the list of nodes inside square braces. |
| * Elements will contain the element name |
| * and any attributes enclosed in angle brackets. |
| * Attributes will be of form, "name=value." |
| * |
| * @param l any DOM node list. Must not be null. |
| * |
| * @return a string representation of the given node list. |
| */ |
| public static String printNodeList(NodeList l) |
| { |
| |
| String r = l.hashCode() + "["; |
| int len = l.getLength() - 1; |
| int i = 0; |
| |
| while (i < len) |
| { |
| Node n = l.item(i); |
| |
| if (null != n) |
| { |
| r += printNode(n) + ", "; |
| } |
| |
| ++i; |
| } |
| |
| if (i == len) |
| { |
| Node n = l.item(len); |
| |
| if (null != n) |
| { |
| r += printNode(n); |
| } |
| } |
| |
| return r + "]"; |
| } |
| } |