org.apache.cassandra.io.compress.CompressedThrottledReader Maven / Gradle / Ivy
/*
* Copyright © 2015 Cask Data, Inc.
*
* 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.apache.cassandra.io.compress;
import com.google.common.util.concurrent.RateLimiter;
import java.io.FileNotFoundException;
/**
* TODO: remove once guava removed from cdap-api
* Copied from Cassandra to avoid guava conflicts from method signature change to RateLimiter.acquire(int x).
*/
public class CompressedThrottledReader extends CompressedRandomAccessReader {
private final RateLimiter limiter;
public CompressedThrottledReader(String file, CompressionMetadata metadata, RateLimiter limiter)
throws FileNotFoundException {
super(file, metadata, null);
this.limiter = limiter;
}
protected void reBuffer() {
limiter.acquire(buffer.length);
super.reBuffer();
}
public static org.apache.cassandra.io.compress.CompressedThrottledReader open(String file,
CompressionMetadata metadata,
RateLimiter limiter) {
try {
return new org.apache.cassandra.io.compress.CompressedThrottledReader(file, metadata, limiter);
} catch (FileNotFoundException e) {
throw new RuntimeException(e);
}
}
}