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DatasetResourceReference.java
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DatasetResourceReference.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 org.apache.asterix.common.storage;
import java.nio.file.Paths;
import java.util.Objects;
import org.apache.asterix.common.dataflow.DatasetLocalResource;
import org.apache.asterix.common.utils.StorageConstants;
import org.apache.hyracks.storage.common.LocalResource;
public class DatasetResourceReference extends ResourceReference {
private int datasetId;
private int partitionId;
private long resourceId;
private DatasetResourceReference() {
super();
}
public static DatasetResourceReference of(LocalResource localResource) {
Objects.requireNonNull(localResource);
return parse(localResource);
}
public int getDatasetId() {
return datasetId;
}
public int getPartitionId() {
return partitionId;
}
public long getResourceId() {
return resourceId;
}
private static DatasetResourceReference parse(LocalResource localResource) {
final DatasetResourceReference datasetResourceReference = new DatasetResourceReference();
final String filePath = Paths.get(localResource.getPath(), StorageConstants.METADATA_FILE_NAME).toString();
parse(datasetResourceReference, filePath);
assignIds(localResource, datasetResourceReference);
return datasetResourceReference;
}
private static void assignIds(LocalResource localResource, DatasetResourceReference lrr) {
final DatasetLocalResource dsResource = (DatasetLocalResource) localResource.getResource();
lrr.datasetId = dsResource.getDatasetId();
lrr.partitionId = dsResource.getPartition();
lrr.resourceId = localResource.getId();
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (o instanceof ResourceReference) {
ResourceReference that = (ResourceReference) o;
return getRelativePath().toString().equals(that.getRelativePath().toString());
}
return false;
}
@Override
public int hashCode() {
return getRelativePath().toString().hashCode();
}
@Override
public String toString() {
return getRelativePath().toString();
}
}