/*
* 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.graph;
import org.apache.flink.api.java.ExecutionEnvironment;
import org.apache.flink.util.Preconditions;
/**
* Base class for {@link GraphAnalytic}.
*
* @param <K> key type
* @param <VV> vertex value type
* @param <EV> edge value type
* @param <T> the return type
*/
public abstract class AbstractGraphAnalytic<K, VV, EV, T>
implements GraphAnalytic<K, VV, EV, T> {
protected ExecutionEnvironment env;
@Override
public GraphAnalytic<K, VV, EV, T> run(Graph<K, VV, EV> input)
throws Exception {
env = input.getContext();
return this;
}
@Override
public T execute()
throws Exception {
env.execute();
return getResult();
}
@Override
public T execute(String jobName)
throws Exception {
Preconditions.checkNotNull(jobName);
env.execute(jobName);
return getResult();
}
}