gobblin.data.management.version.TimestampedDatasetVersion.java Source code

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Here is the source code for gobblin.data.management.version.TimestampedDatasetVersion.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.data.management.version;

import java.util.Set;

import org.apache.hadoop.fs.Path;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;

import com.google.common.collect.Sets;

import lombok.Getter;

/**
 * {@link gobblin.data.management.version.DatasetVersion} based on a timestamp.
 */
@Getter
public class TimestampedDatasetVersion implements FileSystemDatasetVersion {
    protected final DateTime version;
    protected final Path path;

    public TimestampedDatasetVersion(DateTime version, Path path) {
        this.version = version;
        this.path = path;
    }

    public DateTime getDateTime() {
        return this.version;
    }

    @Override
    public int compareTo(FileSystemDatasetVersion other) {
        TimestampedDatasetVersion otherAsDateTime = (TimestampedDatasetVersion) other;
        return this.version.equals(otherAsDateTime.version) ? this.path.compareTo(otherAsDateTime.path)
                : this.version.compareTo(otherAsDateTime.version);
    }

    @Override
    public boolean equals(Object obj) {
        return obj instanceof TimestampedDatasetVersion && compareTo((TimestampedDatasetVersion) obj) == 0;
    }

    @Override
    public int hashCode() {
        return this.version.hashCode() + this.path.hashCode();
    }

    @Override
    public String toString() {
        return "Version " + this.version.toString(DateTimeFormat.shortDateTime()) + " at path " + this.path;
    }

    @Override
    public Set<Path> getPaths() {
        return Sets.newHashSet(this.path);
    }
}