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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* 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.tuscany.core.config.impl;
import org.apache.tuscany.core.config.ConfigurationLoadException;
import org.apache.tuscany.core.loader.StAXLoaderRegistry;
import org.apache.tuscany.core.loader.LoaderContext;
import org.apache.tuscany.model.assembly.AssemblyContext;
import org.apache.tuscany.model.assembly.Module;
import org.apache.tuscany.model.assembly.ModuleFragment;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import java.io.IOException;
import java.net.URL;
/**
* @version $Rev$ $Date$
*/
public class StAXModuleComponentConfigurationLoaderImpl extends AbstractModuleComponentConfigurationLoader {
private final XMLInputFactory xmlFactory;
private final StAXLoaderRegistry registry;
public StAXModuleComponentConfigurationLoaderImpl(AssemblyContext modelContext, XMLInputFactory xmlFactory, StAXLoaderRegistry registry) {
super(modelContext);
this.xmlFactory = xmlFactory;
this.registry = registry;
}
public Module loadModule(URL url) throws ConfigurationLoadException {
registry.setContext(modelContext);
try {
XMLStreamReader reader = xmlFactory.createXMLStreamReader(url.openStream());
getDocumentRoot(reader);
return (Module) registry.load(reader, new LoaderContext(resourceLoader));
} catch (XMLStreamException e) {
ConfigurationLoadException ce = new ConfigurationLoadException(e);
ce.setResourceURI(url.toString());
throw ce;
} catch (IOException e) {
ConfigurationLoadException ce = new ConfigurationLoadException(e);
ce.setResourceURI(url.toString());
throw ce;
} finally {
registry.setContext(null);
}
}
public ModuleFragment loadModuleFragment(URL url) throws ConfigurationLoadException {
registry.setContext(modelContext);
try {
XMLStreamReader reader = xmlFactory.createXMLStreamReader(url.openStream());
getDocumentRoot(reader);
return (ModuleFragment) registry.load(reader, new LoaderContext(resourceLoader));
} catch (XMLStreamException e) {
ConfigurationLoadException ce = new ConfigurationLoadException(e);
ce.setResourceURI(url.toString());
throw ce;
} catch (IOException e) {
ConfigurationLoadException ce = new ConfigurationLoadException(e);
ce.setResourceURI(url.toString());
throw ce;
} finally {
registry.setContext(null);
}
}
private static void getDocumentRoot(XMLStreamReader reader) throws XMLStreamException {
while (true) {
if (reader.next() == XMLStreamConstants.START_ELEMENT) {
return;
}
}
}
}
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