org.apache.jackrabbit.oak.plugins.index.property.jmx.PropertyIndexAsyncReindex Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.jackrabbit.oak.plugins.index.property.jmx;
import static com.google.common.base.Preconditions.checkNotNull;
import static java.lang.System.nanoTime;
import static org.apache.jackrabbit.oak.commons.jmx.ManagementOperation.Status.formatTime;
import static org.apache.jackrabbit.oak.commons.jmx.ManagementOperation.done;
import static org.apache.jackrabbit.oak.commons.jmx.ManagementOperation.newManagementOperation;
import java.util.concurrent.Callable;
import java.util.concurrent.Executor;
import javax.annotation.Nonnull;
import javax.management.openmbean.CompositeData;
import org.apache.jackrabbit.oak.commons.jmx.ManagementOperation;
import org.apache.jackrabbit.oak.plugins.index.AsyncIndexUpdate;
/**
* Default implementation of {@link PropertyIndexAsyncReindexMBean} based on a
* {@code Runnable}.
*/
public class PropertyIndexAsyncReindex implements
PropertyIndexAsyncReindexMBean {
public static final String OP_NAME = "Property index asynchronous reindex";
private final AsyncIndexUpdate async;
private final Executor executor;
private ManagementOperation arOp = done(OP_NAME, "");
/**
* @param async
* @param executor
* executor for running the garbage collection task
*/
public PropertyIndexAsyncReindex(@Nonnull AsyncIndexUpdate async,
@Nonnull Executor executor) {
this.async = checkNotNull(async);
this.executor = checkNotNull(executor);
}
@Nonnull
@Override
public CompositeData startPropertyIndexAsyncReindex() {
if (arOp.isDone()) {
arOp = newManagementOperation(OP_NAME, new Callable() {
@Override
public String call() throws Exception {
long t0 = nanoTime();
boolean done = false;
while (!done) {
async.run();
done = async.isFinished();
}
return "Reindex completed in " + formatTime(nanoTime() - t0);
}
});
executor.execute(arOp);
}
return getPropertyIndexAsyncReindexStatus();
}
@Nonnull
@Override
public CompositeData getPropertyIndexAsyncReindexStatus() {
return arOp.getStatus().toCompositeData();
}
}