001/* ***** BEGIN LICENSE BLOCK *****
002 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
003 *
004 * The contents of this file are subject to the Mozilla Public License Version
005 * 1.1 (the "License"); you may not use this file except in compliance with
006 * the License. You may obtain a copy of the License at
007 * http://www.mozilla.org/MPL/
008 *
009 * Software distributed under the License is distributed on an "AS IS" basis,
010 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
011 * for the specific language governing rights and limitations under the
012 * License.
013 *
014 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
015 * Java(TM), hosted at https://github.com/gunterze/dcm4che.
016 *
017 * The Initial Developer of the Original Code is
018 * Agfa Healthcare.
019 * Portions created by the Initial Developer are Copyright (C) 2011
020 * the Initial Developer. All Rights Reserved.
021 *
022 * Contributor(s):
023 * See @authors listed below
024 *
025 * Alternatively, the contents of this file may be used under the terms of
026 * either the GNU General Public License Version 2 or later (the "GPL"), or
027 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
028 * in which case the provisions of the GPL or the LGPL are applicable instead
029 * of those above. If you wish to allow use of your version of this file only
030 * under the terms of either the GPL or the LGPL, and not to allow others to
031 * use your version of this file under the terms of the MPL, indicate your
032 * decision by deleting the provisions above and replace them with the notice
033 * and other provisions required by the GPL or the LGPL. If you do not delete
034 * the provisions above, a recipient may use your version of this file under
035 * the terms of any one of the MPL, the GPL or the LGPL.
036 *
037 * ***** END LICENSE BLOCK ***** */
038
039package org.dcm4che3.io;
040
041import javax.xml.transform.Result;
042import javax.xml.transform.Source;
043import javax.xml.transform.Templates;
044import javax.xml.transform.Transformer;
045import javax.xml.transform.TransformerConfigurationException;
046import javax.xml.transform.TransformerFactory;
047import javax.xml.transform.sax.SAXResult;
048import javax.xml.transform.sax.SAXTransformerFactory;
049import javax.xml.transform.sax.TransformerHandler;
050
051import org.dcm4che3.data.Attributes;
052import org.xml.sax.SAXException;
053
054/**
055 * @author Gunter Zeilinger <gunterze@gmail.com>
056 */
057public abstract class SAXTransformer {
058
059    public interface SetupTransformer {
060        void setup(Transformer transformer);
061    }
062
063    private static SAXTransformerFactory factory =
064            (SAXTransformerFactory) TransformerFactory.newInstance();
065
066    public static SAXWriter getSAXWriter(Templates templates, Attributes result)
067            throws TransformerConfigurationException {
068        return getSAXWriter(templates, result, null);
069    }
070
071    public static SAXWriter getSAXWriter(Templates templates, Attributes result,
072            SetupTransformer setup)
073            throws TransformerConfigurationException {
074        return getSAXWriter(templates,
075                new SAXResult(new ContentHandlerAdapter(result)),
076                setup);
077    }
078
079    public static SAXWriter getSAXWriter(Templates templates, Result result)
080            throws TransformerConfigurationException {
081        return getSAXWriter(templates, result, null);
082    }
083
084    public static SAXWriter getSAXWriter(Templates templates, Result result,
085            SetupTransformer setup)
086            throws TransformerConfigurationException {
087        return getSAXWriter(factory.newTransformerHandler(templates),
088                result,
089                setup);
090    }
091
092    public static SAXWriter getSAXWriter(Result result)
093            throws TransformerConfigurationException {
094        return getSAXWriter(result, null);
095    }
096
097    public static SAXWriter getSAXWriter(Result result, SetupTransformer setup)
098            throws TransformerConfigurationException {
099        return getSAXWriter(factory.newTransformerHandler(), result, setup);
100    }
101
102    private static SAXWriter getSAXWriter(TransformerHandler th, Result result,
103            SetupTransformer setup) {
104        th.setResult(result);
105        if (setup != null)
106            setup.setup(th.getTransformer());
107        return new SAXWriter(th);
108    }
109
110    public static Attributes transform(Attributes ds, Templates templates,
111            boolean includeNameSpaceDeclaration, boolean includeKeword)
112            throws SAXException, TransformerConfigurationException {
113        return transform(ds, templates,
114                includeNameSpaceDeclaration, includeKeword, null);
115    }
116
117    public static Attributes transform(Attributes ds, Templates templates,
118            boolean includeNameSpaceDeclaration, boolean includeKeword,
119            SetupTransformer setup)
120            throws SAXException, TransformerConfigurationException {
121        Attributes modify = new Attributes();
122        SAXWriter w = SAXTransformer.getSAXWriter(
123                templates, modify, setup);
124        w.setIncludeNamespaceDeclaration(includeNameSpaceDeclaration);
125        w.setIncludeKeyword(includeKeword);
126        w.write(ds);
127        return modify;
128    }
129
130    public static Templates newTemplates(Source source)
131            throws TransformerConfigurationException {
132        return factory.newTemplates(source);
133    }
134}