contrib/src/test/java/org/apache/apex/malhar/contrib/memcache/MemcachePOJOOperatorTest.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.apex.malhar.contrib.memcache;

import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

import org.apache.apex.malhar.contrib.util.TestPOJO;
import org.apache.apex.malhar.contrib.util.TupleGenerator;
import org.apache.apex.malhar.lib.util.TableInfo;

import com.datatorrent.netlet.util.DTThrowable;

import net.spy.memcached.AddrUtil;

@SuppressWarnings("rawtypes")
public class MemcachePOJOOperatorTest
{
  public static final int TUPLE_SIZE = 1000;

  private MemcacheStore store;

  @Before
  public void setup()
  {
    store = new MemcacheStore();
    store.setServerAddresses(AddrUtil.getAddresses("localhost:11211") );
  }

  public void cleanup()
  {
    if ( store != null ) {
      try {
        store.disconnect();
      } catch ( Exception e ) {
        DTThrowable.rethrow(e);
      }
    }

  }

  @SuppressWarnings("unchecked")
  @Test
  public void testMemcacheOutputOperatorInternal() throws Exception
  {
    MemcachePOJOOutputOperator operator = new MemcachePOJOOutputOperator();
    operator.setStore(store);

    TableInfo tableInfo = new TableInfo();
    tableInfo.setRowOrIdExpression( TestPOJO.getRowExpression() );
    tableInfo.setFieldsInfo( TestPOJO.getFieldsInfo() );
    tableInfo.setRowOrIdExpression( TestPOJO.getRowExpression() );
    operator.setTableInfo( tableInfo );

    operator.setup(null);

    TupleGenerator<TestPOJO> generator = new TupleGenerator<TestPOJO>( TestPOJO.class );

    for ( int i = 0; i < TUPLE_SIZE; ++i ) {
      operator.processTuple( generator.getNextTuple() );
    }

    readDataAndVerify( operator.getStore(), generator );
  }

  public void readDataAndVerify( MemcacheStore store, TupleGenerator<TestPOJO> generator )
  {
    generator.reset();

    for ( int i = 0; i < TUPLE_SIZE; ++i ) {
      TestPOJO expected = generator.getNextTuple();
      TestPOJO read = (TestPOJO)store.get( expected.getRow() );
      Assert.assertTrue( String.format( "expected={%s}, actually={%s}", expected.toString(), read.toString() ), expected.completeEquals(read) );
    }
  }
}