/*
* 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.ignite.internal.processors.hadoop.impl.v2;
import org.apache.hadoop.mapreduce.Counter;
import org.apache.ignite.internal.processors.hadoop.counter.HadoopLongCounter;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
/**
* Adapter from own counter implementation into Hadoop API Counter od version 2.0.
*/
public class HadoopV2Counter implements Counter {
/** Delegate. */
private final HadoopLongCounter cntr;
/**
* Creates new instance with given delegate.
*
* @param cntr Internal counter.
*/
public HadoopV2Counter(HadoopLongCounter cntr) {
assert cntr != null : "counter must be non-null";
this.cntr = cntr;
}
/** {@inheritDoc} */
@Override public void setDisplayName(String displayName) {
// No-op.
}
/** {@inheritDoc} */
@Override public String getName() {
return cntr.name();
}
/** {@inheritDoc} */
@Override public String getDisplayName() {
return getName();
}
/** {@inheritDoc} */
@Override public long getValue() {
return cntr.value();
}
/** {@inheritDoc} */
@Override public void setValue(long val) {
cntr.value(val);
}
/** {@inheritDoc} */
@Override public void increment(long incr) {
cntr.increment(incr);
}
/** {@inheritDoc} */
@Override public Counter getUnderlyingCounter() {
return this;
}
/** {@inheritDoc} */
@Override public void write(DataOutput out) throws IOException {
throw new UnsupportedOperationException("not implemented");
}
/** {@inheritDoc} */
@Override public void readFields(DataInput in) throws IOException {
throw new UnsupportedOperationException("not implemented");
}
}