X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=support%2Fgeneral%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Fxml%2FXMLDocument.java;fp=support%2Fgeneral%2Fsrc%2Fmain%2Fjava%2Forg%2Fwamblee%2Fxml%2FXMLDocument.java;h=2671d5baf165ff8211a095affcef79d45d7cc283;hb=2136b85d7bde33a277d1dfd58b048ee6e5f5db8b;hp=0000000000000000000000000000000000000000;hpb=df850821cf26ca07ef2474d4d2cabb61e9104291;p=utils

diff --git a/support/general/src/main/java/org/wamblee/xml/XMLDocument.java b/support/general/src/main/java/org/wamblee/xml/XMLDocument.java
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+/*
+ * Copyright 2005-2011 the original author or authors.
+ * 
+ * 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.wamblee.xml;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.xml.transform.URIResolver;
+import javax.xml.transform.dom.DOMSource;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.ls.DOMImplementationLS;
+import org.w3c.dom.ls.LSException;
+import org.w3c.dom.ls.LSInput;
+import org.w3c.dom.ls.LSParser;
+import org.w3c.dom.ls.LSResourceResolver;
+
+/**
+ * Convenience class for representing an XML document. Together with
+ * {@link XMLProcessor}, {@link XMLSchema}, {@link XMLTextProcessor}, and
+ * {@link XSLTransformation} it provides a simple API for XML parsing,
+ * validation, and transformation.
+ * 
+ * @author Erik Brakkee
+ */
+public class XMLDocument {
+
+    private static final Logger LOG = Logger.getLogger(XMLDocument.class
+        .getName());
+
+    private DOMSource doc;
+
+    public XMLDocument(DOMSource aDoc) {
+        doc = aDoc;
+    }
+
+    public XMLDocument(URI aUri) throws IOException, XMLException {
+        this(aUri.toString(), aUri.toURL().openStream());
+    }
+    
+    public XMLDocument(String aSystemId, String aContents) throws XMLException { 
+        this(aSystemId, new ByteArrayInputStream(aContents.getBytes()));
+    }
+
+    public XMLDocument(String aSystemId, InputStream aStream)
+        throws XMLException {
+        LSInput input = DomUtils.getDomImplementationLS().createLSInput();
+        input.setByteStream(aStream);
+        input.setSystemId(aSystemId);
+        doc = read(input, null);
+    }
+
+    public XMLDocument(String aSystemId, LSResourceResolver aResolver)
+        throws XMLException {
+        LSInput input = aResolver.resolveResource(null, null, null, aSystemId,
+            null);
+        doc = read(input, aResolver);
+    }
+
+    public static XMLDocument xmldocument(URI aUri) throws IOException,
+        XMLException {
+        return new XMLDocument(aUri);
+    }
+    
+    public static XMLDocument xmldocument(String aSystemId, String aContents) throws XMLException { 
+        return new XMLDocument(aSystemId, aContents);
+    }
+
+    public static XMLDocument xmldocument(String aSystemId, InputStream aStream)
+        throws XMLException {
+        return new XMLDocument(aSystemId, aStream);
+    }
+
+    public static XMLDocument xmldocument(String aSystemId,
+        LSResourceResolver aResolver) throws XMLException {
+        return new XMLDocument(aSystemId, aResolver);
+    }
+
+    public DOMSource getDOMSource() {
+        return doc;
+    }
+    
+    public Document getDocument() { 
+        return (Document)doc.getNode();
+    }
+
+    public XMLDocument process(XMLProcessor aProcessor) throws XMLException {
+        return new XMLDocument(aProcessor.process(doc));
+    }
+
+    public void write(XMLTextProcessor aProcessor, OutputStream aOs)
+        throws XMLException {
+        aProcessor.write(doc, aOs);
+    }
+    
+    public String write(XMLTextProcessor aProcessor) throws XMLException { 
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+        write(aProcessor, bos); 
+        return bos.toString();
+    }
+
+    public XMLDocument transform(URI aUri) throws XMLException {
+        return process(new XSLTransformation(aUri));
+    }
+
+    public XMLDocument transform(String aSystemId, URIResolver aResolver)
+        throws XMLException {
+        return process(new XSLTransformation(aSystemId, aResolver));
+    }
+
+    public XMLDocument validate(URI aUri) throws XMLException {
+        return process(new XMLSchema(aUri));
+    }
+
+    public XMLDocument validate(String aSystemId, InputStream aIs,
+        LSResourceResolver aResolver) throws XMLException {
+        return process(new XMLSchema(aSystemId, aIs, aResolver));
+    }
+
+    /**
+     * Prints an XML document.
+     * 
+     * @param aOs
+     *            Output stream to print on.
+     * @param aPrettyPrint
+     *            Pretty print or not.
+     */
+    public void print(OutputStream aOs, boolean aPrettyPrint) {
+        try {
+            write(new XSLTransformation().setPrettyPrint(aPrettyPrint), aOs);
+        } catch (XMLException e) {
+            throw new RuntimeException(
+                "Programming error, cannot print a DOM tree?: " +
+                    doc.getSystemId(), e);
+        }
+    }
+
+    /**
+     * Prints an XML document.
+     * 
+     * @param aPrettyPrint
+     *            Pretty print or not.
+     * @return XML string.
+     */
+    public String print(boolean aPrettyPrint) {
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+        print(bos, aPrettyPrint);
+        return bos.toString();
+    }
+
+    private static DOMSource read(LSInput aInput, LSResourceResolver aResolver)
+        throws XMLException {
+        try {
+            DOMImplementationLS impl = DomUtils.getDomImplementationLS();
+
+            LSParser builder = impl.createLSParser(
+                DOMImplementationLS.MODE_SYNCHRONOUS, null);
+            if (aResolver != null) {
+                builder.getDomConfig().setParameter("resource-resolver",
+                    aResolver);
+            }
+            Document docraw = builder.parse(aInput);
+            DOMSource result = new DOMSource(docraw);
+            result.setSystemId(aInput.getSystemId());
+            return result;
+        } catch (LSException e) {
+            throw new XMLException(e.getMessage(), e);
+        }
+    }
+
+}