/* Copyright 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.codehaus.jam.xml;
import org.codehaus.jam.JClass;
import org.codehaus.jam.JamService;
import org.codehaus.jam.JamServiceFactory;
import org.codehaus.jam.JamServiceParams;
import org.codehaus.jam.internal.CachedClassBuilder;
import org.codehaus.jam.internal.JamServiceImpl;
import org.codehaus.jam.internal.elements.ElementContext;
import javax.xml.stream.XMLStreamException;
import java.io.IOException;
import java.io.InputStream;
import java.io.Writer;
import java.util.Arrays;
import java.util.List;
/**
* @author Patrick Calahan <email: pcal-at-bea-dot-com>
*/
public class JamXmlUtils {
// ========================================================================
// Singleton
public static final JamXmlUtils getInstance() { return INSTANCE; }
private static final JamXmlUtils INSTANCE = new JamXmlUtils();
private JamXmlUtils() {}
// ========================================================================
// Public methods
public JamService createService(InputStream in)
throws IOException, XMLStreamException
{
if (in == null) throw new IllegalArgumentException("null stream");
JamServiceFactory jsf = JamServiceFactory.getInstance();
JamServiceParams params = jsf.createServiceParams();
CachedClassBuilder cache = new CachedClassBuilder();
// finish initalizing the params and create the service
params.addClassBuilder(cache);
JamService out = jsf.createService(params);
// now go view the xml. we have to do this afterwards so that the
// classloader has been created and is available for linking.
JamXmlReader reader = new JamXmlReader(cache,in,(ElementContext)params);
reader.read();
{
// slightly gross hack to get the class names into the service
List classNames = Arrays.asList(cache.getClassNames());
classNames.addAll(Arrays.asList(out.getClassNames()));
String[] nameArray = new String[classNames.size()];
classNames.toArray(nameArray);
((JamServiceImpl)out).setClassNames(nameArray);
}
return out;
}
public void toXml(JClass[] clazzes, Writer writer)
throws IOException, XMLStreamException
{
if (clazzes == null) throw new IllegalArgumentException("null classes");
if (writer == null) throw new IllegalArgumentException("null writer");
JamXmlWriter out = new JamXmlWriter(writer);
out.begin();
for(int i=0; i<clazzes.length; i++) out.write(clazzes[i]);
out.end();
}
}