| /* |
| * 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.tez.dag.api; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.tez.common.Preconditions; |
| import org.apache.hadoop.classification.InterfaceAudience; |
| |
| @SuppressWarnings("unchecked") |
| public class NamedEntityDescriptor<T extends NamedEntityDescriptor<T>> extends EntityDescriptor<NamedEntityDescriptor<T>> { |
| private final String entityName; |
| |
| @InterfaceAudience.Private |
| public NamedEntityDescriptor(String entityName, String className) { |
| super(className); |
| Preconditions.checkArgument(entityName != null, "EntityName must be specified"); |
| this.entityName = entityName; |
| } |
| |
| public String getEntityName() { |
| return entityName; |
| } |
| |
| public T setUserPayload(UserPayload userPayload) { |
| super.setUserPayload(userPayload); |
| return (T) this; |
| } |
| |
| @Override |
| public void write(DataOutput out) throws IOException { |
| throw new UnsupportedOperationException( |
| "write is not expected to be used for a NamedEntityDescriptor"); |
| } |
| |
| @Override |
| public void readFields(DataInput in) throws IOException { |
| throw new UnsupportedOperationException( |
| "readFields is not expected to be used for a NamedEntityDescriptor"); |
| } |
| |
| @Override |
| public String toString() { |
| boolean hasPayload = |
| getUserPayload() == null ? false : getUserPayload().getPayload() == null ? false : true; |
| return "EntityName=" + entityName + ", ClassName=" + getClassName() + ", hasPayload=" + hasPayload; |
| } |
| } |