| /* |
| * 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.myfaces.trinidadbuild.plugin.jdeveloper; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.File; |
| import java.io.IOException; |
| |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| import javax.xml.parsers.ParserConfigurationException; |
| |
| import org.w3c.dom.Document; |
| |
| import org.w3c.dom.Node; |
| |
| import org.w3c.dom.NodeList; |
| |
| import org.xml.sax.EntityResolver; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXException; |
| |
| public class TldContentHandler |
| { |
| /** |
| * Content Handler. |
| */ |
| public TldContentHandler() |
| { |
| } |
| |
| /** |
| * Parse the .tld file to get the information |
| * needed for the .jpr |
| */ |
| public void parseTld(File file) |
| throws SAXException, |
| IOException, |
| ParserConfigurationException |
| { |
| // Create a builder factory |
| DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); |
| factory.setValidating(false); |
| |
| // Create the Builder and parse the file |
| DocumentBuilder docBuilder = factory.newDocumentBuilder(); |
| |
| // Set Entity Resolver to resolve external entities, i.e. |
| // the "http://...." in the <!DOCTYPE tag |
| EntityResolver entityResolver = new PluginEntityResolver(); |
| docBuilder.setEntityResolver(entityResolver); |
| Document document = docBuilder.parse(file); |
| |
| _processTldNodes(document); |
| } |
| |
| /*========================================================================= |
| * Gettors and settors |
| * ======================================================================*/ |
| |
| public void setVersion(String version) |
| { |
| _version = version; |
| } |
| |
| public void setName(String name) |
| { |
| _name = name; |
| } |
| |
| public void setPrefix(String prefix) |
| { |
| _prefix = prefix; |
| } |
| |
| public void setURI(String uri) |
| { |
| _uri = uri; |
| } |
| |
| public void setJspVersion(String jspVersion) |
| { |
| _jspVersion = jspVersion; |
| } |
| |
| public String getVersion() |
| { |
| return _version == null? "" : _version; |
| } |
| |
| public String getName() |
| { |
| return _name == null? "" : _name; |
| } |
| |
| public String getPrefix() |
| { |
| return _prefix == null? "" : _prefix; |
| } |
| |
| public String getURI() |
| { |
| return _uri == null? "" : _uri; |
| } |
| |
| public String getJspVersion() |
| { |
| return _jspVersion == null? "" : _jspVersion; |
| } |
| |
| |
| /** |
| * Find all the TLD nodes we want, get each node's value |
| * and set the value on the proper class property. |
| * |
| * @param document - DOM Document from the TLD file |
| */ |
| private void _processTldNodes(Document document) |
| { |
| Node node = null; |
| |
| // Get the Nodes first node. We can be specific here |
| // because we know we want the first node. |
| NodeList nodeList = document.getElementsByTagName(_TLIB_VERSION); |
| if (nodeList != null && nodeList.getLength() != 0) |
| { |
| node = nodeList.item(0); |
| setVersion(node.getFirstChild().getNodeValue()); |
| } |
| |
| nodeList = document.getElementsByTagName(_JSP_VERSION); |
| if (nodeList != null && nodeList.getLength() != 0) |
| { |
| node = nodeList.item(0); |
| setJspVersion(node.getFirstChild().getNodeValue()); |
| } |
| |
| // Must go before _DISPLAY_NAME |
| nodeList = document.getElementsByTagName(_SHORT_NAME); |
| if (nodeList != null && nodeList.getLength() != 0) |
| { |
| node = nodeList.item(0); |
| setPrefix(node.getFirstChild().getNodeValue()); |
| } |
| |
| // Must go after _SHORT_NAME |
| nodeList = document.getElementsByTagName(_DISPLAY_NAME); |
| if (nodeList != null && nodeList.getLength() != 0) |
| { |
| node = nodeList.item(0); |
| setName(node.getFirstChild().getNodeValue()); |
| } |
| else |
| { |
| setName(getPrefix()); |
| } |
| |
| nodeList = document.getElementsByTagName(_URI); |
| if (nodeList != null && nodeList.getLength() != 0) |
| { |
| node = nodeList.item(0); |
| setURI(node.getFirstChild().getNodeValue()); |
| } |
| } |
| |
| //======================================================================== |
| // Private variables |
| //======================================================================== |
| |
| private String _version = null; // tlib-version |
| private String _name = null; // display-name |
| private String _prefix = null; // short-name |
| private String _jspVersion = null; // jsp-version |
| private String _uri = null; // uri |
| |
| private final static String _TLIB_VERSION = "tlib-version"; //version NOTRANS |
| private final static String _DISPLAY_NAME = "display-name"; //name NOTRANS |
| private final static String _SHORT_NAME = "short-name"; //prefix NOTRANS |
| private final static String _JSP_VERSION = "jsp-version"; //NOTRANS |
| private final static String _URI = "uri"; |
| |
| |
| /** |
| * Gary Kind 01/22/2008. This class is used solely to get around a |
| * java.net.NoRouteToHostException that occurs in the tag libs |
| * <!DOCTYPE... tag, which is: |
| * |
| * <!DOCTYPE taglib |
| * PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" |
| * "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd"> |
| * |
| * The http URL causes this exception for some unknown reason. I have |
| * searched high and low on the web for a real solution and finally found |
| * this workaround at |
| * http://forum.java.sun.com/thread.jspa?threadID=284209&forumID=34 |
| * Apparently a LOT of developers are seeing similar problems and they too |
| * are not able to find a solution. This workaround works perfectly and all |
| * is well. |
| */ |
| private class PluginEntityResolver |
| implements EntityResolver |
| { |
| public InputSource resolveEntity(String publicId, String systemId) |
| { |
| if ("-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN".equals(publicId)) |
| { |
| String xmlStr = "<?xml version='1.0' encoding='UTF-8'?>"; |
| byte[] buf = xmlStr.getBytes(); |
| ByteArrayInputStream bais = new ByteArrayInputStream(buf); |
| return new InputSource(bais); |
| } |
| else |
| return null; |
| } |
| } |
| |
| } // endclass TldContentHandler |