gobblin.util.io.StreamCopierSharedLimiterKey.java Source code

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Here is the source code for gobblin.util.io.StreamCopierSharedLimiterKey.java

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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 gobblin.util.io;

import java.net.URI;

import org.apache.hadoop.fs.LocalFileSystem;

import com.google.common.base.Joiner;

import gobblin.util.ClustersNames;
import gobblin.util.limiter.broker.SharedLimiterKey;

import lombok.Getter;

/**
 * A subclass of {@link SharedLimiterKey} with more detailed information on the source and target of
 * a throttled {@link StreamCopier}.
 */
@Getter
public class StreamCopierSharedLimiterKey extends SharedLimiterKey {

    public static final String STREAM_COPIER_KEY_PREFIX = "streamCopierBandwidth";

    private final URI sourceURI;
    private final URI targetURI;

    public StreamCopierSharedLimiterKey(URI sourceURI, URI targetURI) {
        super(getLimitedResourceId(sourceURI, targetURI));
        this.sourceURI = sourceURI;
        this.targetURI = targetURI;
    }

    private static String getLimitedResourceId(URI sourceURI, URI targetURI) {
        return Joiner.on(".").join(STREAM_COPIER_KEY_PREFIX, getFSIdentifier(sourceURI),
                getFSIdentifier(targetURI));
    }

    private static String getFSIdentifier(URI uri) {
        if (new LocalFileSystem().getScheme().equals(uri.getScheme())) {
            return "localhost";
        } else {
            return ClustersNames.getInstance().getClusterName(uri.toString());
        }
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        if (!super.equals(o)) {
            return false;
        }

        StreamCopierSharedLimiterKey that = (StreamCopierSharedLimiterKey) o;

        if (!sourceURI.equals(that.sourceURI)) {
            return false;
        }
        return targetURI.equals(that.targetURI);
    }

    @Override
    public int hashCode() {
        int result = super.hashCode();
        result = 31 * result + sourceURI.hashCode();
        result = 31 * result + targetURI.hashCode();
        return result;
    }
}