Java XML Transform getThreadedTransformer(final boolean omitXmlDeclaration, final boolean standalone, final Map threadMap, final String xslURL)

Description

get Threaded Transformer

License

Open Source License

Declaration

private static Transformer getThreadedTransformer(final boolean omitXmlDeclaration, final boolean standalone,
            final Map threadMap, final String xslURL) throws TransformerConfigurationException 

Method Source Code

//package com.java2s;
/**/*  w w  w  . j  a  va 2  s  .co m*/
 * Copyright 2006 OCLC Online Computer Library Center 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.
 */

import java.util.Map;

import javax.xml.transform.OutputKeys;

import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;

import javax.xml.transform.TransformerFactory;

import javax.xml.transform.stream.StreamSource;

public class Main {
    private static TransformerFactory tFactory = TransformerFactory.newInstance();

    private static Transformer getThreadedTransformer(final boolean omitXmlDeclaration, final boolean standalone,
            final Map threadMap, final String xslURL) throws TransformerConfigurationException {
        final Thread currentThread = Thread.currentThread();
        Transformer transformer = null;
        if (threadMap != null) {
            transformer = (Transformer) threadMap.get(currentThread);
        }
        if (transformer == null) {
            if (xslURL == null) {
                transformer = tFactory.newTransformer(); // "never null"
            } else {
                transformer = tFactory.newTransformer(new StreamSource(xslURL));
            }
            transformer.setOutputProperty(OutputKeys.INDENT, "yes");
            if (threadMap != null) {
                threadMap.put(currentThread, transformer);
            }
        }
        transformer.setOutputProperty(OutputKeys.STANDALONE, standalone ? "yes" : "no");
        transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, omitXmlDeclaration ? "yes" : "no");
        return transformer;
    }

    /**
     * Get a thread-safe Transformer.
     * 
     * @param omitXmlDeclaration
     * @param threadMap
     * @param xslURL
     * @return a thread-safe Transformer
     * @throws TransformerConfigurationException
     */
    public static Transformer getThreadedTransformer(final boolean omitXmlDeclaration, final Map threadMap,
            final String xslURL) throws TransformerConfigurationException {
        return getThreadedTransformer(omitXmlDeclaration, true, threadMap, xslURL);
    }
}

Related

1. exceptionToString(TransformerException exception, boolean showSystemId)
2. getDefaultTransformerFactoryThreadLocal()
3. getNewTransformer()
4. getThreadedIdentityTransformer( boolean omitXmlDeclaration)
5. getThreadedIdentityTransformer(final boolean omitXmlDeclaration)
6. getTransformedText(File doc, File xsl, Object[] params)
7. getTransformer()
8. getTransformer()
9. getTransformer()