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/*
* 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.cassandra.db.compaction;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import org.apache.cassandra.config.CFMetaData;
/** Implements serializable to allow structured info to be returned via JMX. */
public final class CompactionInfo implements Serializable
{
private static final long serialVersionUID = 3695381572726744816L;
private final CFMetaData cfm;
private final OperationType tasktype;
private final long completed;
private final long total;
private final Unit unit;
private final UUID compactionId;
public static enum Unit
{
BYTES("bytes"), RANGES("ranges"), KEYS("keys");
private final String name;
private Unit(String name)
{
this.name = name;
}
@Override
public String toString()
{
return name;
}
public static boolean isFileSize(String unit)
{
return BYTES.toString().equals(unit);
}
}
public CompactionInfo(CFMetaData cfm, OperationType tasktype, long bytesComplete, long totalBytes, UUID compactionId)
{
this(cfm, tasktype, bytesComplete, totalBytes, Unit.BYTES, compactionId);
}
public CompactionInfo(OperationType tasktype, long completed, long total, Unit unit, UUID compactionId)
{
this(null, tasktype, completed, total, unit, compactionId);
}
public CompactionInfo(CFMetaData cfm, OperationType tasktype, long completed, long total, Unit unit, UUID compactionId)
{
this.tasktype = tasktype;
this.completed = completed;
this.total = total;
this.cfm = cfm;
this.unit = unit;
this.compactionId = compactionId;
}
/** @return A copy of this CompactionInfo with updated progress. */
public CompactionInfo forProgress(long complete, long total)
{
return new CompactionInfo(cfm, tasktype, complete, total, unit, compactionId);
}
public UUID getId()
{
return cfm != null ? cfm.cfId : null;
}
public String getKeyspace()
{
return cfm != null ? cfm.ksName : null;
}
public String getColumnFamily()
{
return cfm != null ? cfm.cfName : null;
}
public CFMetaData getCFMetaData()
{
return cfm;
}
public long getCompleted()
{
return completed;
}
public long getTotal()
{
return total;
}
public OperationType getTaskType()
{
return tasktype;
}
public UUID compactionId()
{
return compactionId;
}
public String toString()
{
StringBuilder buff = new StringBuilder();
buff.append(getTaskType());
if (cfm != null)
{
buff.append('@').append(getId()).append('(');
buff.append(getKeyspace()).append(", ").append(getColumnFamily()).append(", ");
}
else
{
buff.append('(');
}
buff.append(getCompleted()).append('/').append(getTotal());
return buff.append(')').append(unit).toString();
}
public Map asMap()
{
Map ret = new HashMap();
ret.put("id", getId() == null ? "" : getId().toString());
ret.put("keyspace", getKeyspace());
ret.put("columnfamily", getColumnFamily());
ret.put("completed", Long.toString(completed));
ret.put("total", Long.toString(total));
ret.put("taskType", tasktype.toString());
ret.put("unit", unit.toString());
ret.put("compactionId", compactionId == null ? "" : compactionId.toString());
return ret;
}
public static abstract class Holder
{
private volatile boolean stopRequested = false;
public abstract CompactionInfo getCompactionInfo();
public void stop()
{
stopRequested = true;
}
public boolean isStopRequested()
{
return stopRequested;
}
}
}