| /* |
| * Copyright 2002,2004 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.commons.jelly.tags.xmlunit; |
| |
| import java.io.InputStream; |
| import java.io.Reader; |
| import java.net.URL; |
| |
| import org.apache.commons.jelly.JellyTagException; |
| import org.apache.commons.jelly.XMLOutput; |
| import org.apache.commons.jelly.tags.junit.AssertTagSupport; |
| import org.dom4j.Document; |
| import org.dom4j.DocumentException; |
| import org.dom4j.io.SAXContentHandler; |
| import org.dom4j.io.SAXReader; |
| import org.xml.sax.SAXException; |
| |
| public abstract class XMLUnitTagSupport extends AssertTagSupport { |
| |
| /** The SAXReader used to parser the document */ |
| private SAXReader saxReader; |
| |
| /** @return the SAXReader used for parsing, creating one lazily if need be */ |
| public SAXReader getSAXReader() { |
| if (saxReader == null) { |
| saxReader = createSAXReader(); |
| } |
| return saxReader; |
| } |
| |
| /** Sets the SAXReader used for parsing */ |
| public void setSAXReader(SAXReader saxReader) { |
| this.saxReader = saxReader; |
| } |
| |
| /** |
| * Factory method to create a new SAXReader |
| */ |
| protected abstract SAXReader createSAXReader(); |
| |
| /** |
| * Parses the body of this tag and returns the parsed document |
| */ |
| protected Document parseBody() throws JellyTagException { |
| SAXContentHandler handler = new SAXContentHandler(); |
| XMLOutput newOutput = new XMLOutput(handler); |
| try { |
| handler.startDocument(); |
| invokeBody(newOutput); |
| handler.endDocument(); |
| } |
| catch (SAXException e) { |
| throw new JellyTagException(e); |
| } |
| return handler.getDocument(); |
| } |
| |
| /** |
| * Parses the given source |
| */ |
| protected Document parse(Object source) throws JellyTagException { |
| try { |
| if (source instanceof Document) { |
| return (Document) source; |
| } else if (source instanceof String) { |
| String uri = (String) source; |
| InputStream in = context.getResourceAsStream(uri); |
| return getSAXReader().read(in, uri); |
| } else if (source instanceof Reader) { |
| return getSAXReader().read((Reader) source); |
| } else if (source instanceof InputStream) { |
| return getSAXReader().read((InputStream) source); |
| } else if (source instanceof URL) { |
| return getSAXReader().read((URL) source); |
| } else { |
| throw new IllegalArgumentException( |
| "Invalid source argument. Must be a Document, String, Reader, InputStream or URL." |
| + " Was type: " |
| + source.getClass().getName() |
| + " with value: " |
| + source); |
| } |
| } |
| catch (DocumentException e) { |
| throw new JellyTagException(e); |
| } |
| } |
| } |