/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.controller.persistence;
import java.io.OutputStream;
import java.util.HashMap;
import java.util.Map;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamWriter;
import org.jboss.dmr.ModelNode;
import org.jboss.staxmapper.XMLElementWriter;
import org.jboss.staxmapper.XMLMapper;
import static org.jboss.as.controller.ControllerLogger.ROOT_LOGGER;
import static org.jboss.as.controller.ControllerMessages.MESSAGES;
/**
* Abstract superclass for {@link ExtensibleConfigurationPersister} implementations.
*
* @author Brian Stansberry
*/
public abstract class AbstractConfigurationPersister implements ExtensibleConfigurationPersister {
private final XMLElementWriter<ModelMarshallingContext> rootDeparser;
private final Map<String, XMLElementWriter<SubsystemMarshallingContext>> subsystemWriters = new HashMap<String, XMLElementWriter<SubsystemMarshallingContext>>();
private final Map<String, XMLElementWriter<SubsystemMarshallingContext>> subsystemDeploymentWriters = new HashMap<String, XMLElementWriter<SubsystemMarshallingContext>>();
/**
* Construct a new instance.
*
* @param rootDeparser the root model deparser
*/
public AbstractConfigurationPersister(final XMLElementWriter<ModelMarshallingContext> rootDeparser) {
this.rootDeparser = rootDeparser;
}
@Override
public void registerSubsystemWriter(String name, XMLElementWriter<SubsystemMarshallingContext> deparser) {
synchronized (subsystemWriters) {
subsystemWriters.put(name, deparser);
}
}
@Override
public void unregisterSubsystemWriter(String name) {
synchronized (subsystemWriters) {
subsystemWriters.remove(name);
}
}
@Override
public void registerSubsystemDeploymentWriter(String name, XMLElementWriter<SubsystemMarshallingContext> deparser) {
synchronized (subsystemDeploymentWriters) {
subsystemDeploymentWriters.put(name, deparser);
}
}
@Override
public void unregisterSubsystemDeploymentWriter(String name) {
synchronized (subsystemDeploymentWriters) {
subsystemDeploymentWriters.remove(name);
}
}
/** {@inheritDoc} */
@Override
public void marshallAsXml(final ModelNode model, final OutputStream output) throws ConfigurationPersistenceException {
final XMLMapper mapper = XMLMapper.Factory.create();
try {
XMLStreamWriter streamWriter = null;
try {
streamWriter = XMLOutputFactory.newInstance().createXMLStreamWriter(output);
ModelMarshallingContext extensibleModel = new ModelMarshallingContext() {
@Override
public ModelNode getModelNode() {
return model;
}
@Override
public XMLElementWriter<SubsystemMarshallingContext> getSubsystemWriter(String extensionName) {
synchronized (subsystemWriters) {
return subsystemWriters.get(extensionName);
}
}
@Override
public XMLElementWriter<SubsystemMarshallingContext> getSubsystemDeploymentWriter(String extensionName) {
synchronized (subsystemDeploymentWriters) {
return subsystemDeploymentWriters.get(extensionName);
}
}
};
mapper.deparseDocument(rootDeparser, extensibleModel, streamWriter);
streamWriter.close();
} finally {
safeClose(streamWriter);
}
} catch (Exception e) {
throw MESSAGES.failedToWriteConfiguration(e);
}
}
@Override
public void successfulBoot() throws ConfigurationPersistenceException {
}
@Override
public String snapshot() throws ConfigurationPersistenceException{
return null;
}
@Override
public SnapshotInfo listSnapshots() {
return NULL_SNAPSHOT_INFO;
}
@Override
public void deleteSnapshot(String name) {
}
private static void safeClose(final XMLStreamWriter streamWriter) {
if (streamWriter != null) try {
streamWriter.close();
} catch (Throwable t) {
ROOT_LOGGER.failedToCloseResource(t, streamWriter);
}
}
}