org.apache.flink.runtime.clusterframework.types.ResourceID Maven / Gradle / Ivy
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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.flink.runtime.clusterframework.types;
import org.apache.flink.util.AbstractID;
import org.apache.flink.util.Preconditions;
import java.io.Serializable;
/**
* Class for Resource Ids assigned at the FlinkResourceManager.
*/
public final class ResourceID implements ResourceIDRetrievable, Serializable {
private static final long serialVersionUID = 42L;
private final String resourceId;
public ResourceID(String resourceId) {
Preconditions.checkNotNull(resourceId, "ResourceID must not be null");
this.resourceId = resourceId;
}
/**
* Gets the Resource Id as string
* @return Stringified version of the ResourceID
*/
public final String getResourceIdString() {
return resourceId;
}
@Override
public final boolean equals(Object o) {
if (this == o) {
return true;
} else if (o == null || o.getClass() != getClass()) {
return false;
} else {
return resourceId.equals(((ResourceID) o).resourceId);
}
}
@Override
public final int hashCode() {
return resourceId.hashCode();
}
@Override
public String toString() {
return resourceId;
}
/**
* A ResourceID can always retrieve a ResourceID.
* @return This instance.
*/
@Override
public ResourceID getResourceID() {
return this;
}
/**
* Generate a random resource id.
* @return A random resource id.
*/
public static ResourceID generate() {
return new ResourceID(new AbstractID().toString());
}
}