spark-gpu-master/mllib/src/test/java/org/apache/spark/mllib/fpm/JavaAssociationRulesSuite.java
/*
 * 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.spark.mllib.fpm;

import java.io.Serializable;
import java.util.Arrays;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import org.apache.spark.api.java.JavaRDD;
import org.apache.spark.api.java.JavaSparkContext;
import org.apache.spark.mllib.fpm.FPGrowth.FreqItemset;

public class JavaAssociationRulesSuite implements Serializable {
  private transient JavaSparkContext sc;

  @Before
  public void setUp() {
    sc = new JavaSparkContext("local", "JavaFPGrowth");
  }

  @After
  public void tearDown() {
    sc.stop();
    sc = null;
  }

  @Test
  public void runAssociationRules() {

    @SuppressWarnings("unchecked")
    JavaRDD<FPGrowth.FreqItemset<String>> freqItemsets = sc.parallelize(Arrays.asList(
      new FreqItemset<String>(new String[] {"a"}, 15L),
      new FreqItemset<String>(new String[] {"b"}, 35L),
      new FreqItemset<String>(new String[] {"a", "b"}, 12L)
    ));

    JavaRDD<AssociationRules.Rule<String>> results = (new AssociationRules()).run(freqItemsets);
  }
}

