/*
* ModeShape (http://www.modeshape.org)
*
* 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.modeshape.jboss.metric;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
import org.modeshape.jcr.JcrRepository;
import org.modeshape.jcr.api.monitor.RepositoryMonitor;
/**
* A service for obtaining the ModeShape monitoring repository statistics.
*/
public final class MonitorService implements Service<RepositoryMonitor> {
/**
* The injected repository instance associated with this service.
*/
private final InjectedValue<JcrRepository> repoInjector = new InjectedValue<JcrRepository>();
/**
* @see org.jboss.msc.value.Value#getValue()
*/
@Override
public RepositoryMonitor getValue() throws IllegalStateException, IllegalArgumentException {
try {
return this.repoInjector.getValue().getRepositoryStatistics();
} catch (Exception e) {
// nothing to do
}
return RepositoryMonitor.EMPTY_MONITOR;
}
/**
* @see org.jboss.msc.service.Service#start(org.jboss.msc.service.StartContext)
*/
@Override
public void start( final StartContext context ) {
// nothing to do
}
/**
* @see org.jboss.msc.service.Service#stop(org.jboss.msc.service.StopContext)
*/
@Override
public void stop( final StopContext context ) {
// nothing to do
}
/**
* @return the repository injector (never <code>null</code>)
*/
public InjectedValue<JcrRepository> getJcrRepositoryInjector() {
return this.repoInjector;
}
}