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* Licensed to the Apache Software Foundation (ASF) under one
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* 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,
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package org.apache.hadoop.hbase.coprocessor.example;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.MediumTests;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.client.coprocessor.Batch;
import org.apache.hadoop.hbase.coprocessor.CoprocessorHost;
import org.apache.hadoop.hbase.coprocessor.example.generated.ExampleProtos;
import org.apache.hadoop.hbase.ipc.BlockingRpcCallback;
import org.apache.hadoop.hbase.ipc.ServerRpcController;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.experimental.categories.Category;
import java.io.IOException;
import java.util.Iterator;
import java.util.Map;
import static junit.framework.Assert.*;
/**
* Test case demonstrating client interactions with the {@link RowCountEndpoint}
* sample coprocessor Service implementation.
*/
@Category(MediumTests.class)
public class TestRowCountEndpoint {
private static final byte[] TEST_TABLE = Bytes.toBytes("testrowcounter");
private static final byte[] TEST_FAMILY = Bytes.toBytes("f");
private static final byte[] TEST_COLUMN = Bytes.toBytes("col");
private static HBaseTestingUtility TEST_UTIL = null;
private static Configuration CONF = null;
// @Ignore @BeforeClass
public static void setupBeforeClass() throws Exception {
TEST_UTIL = new HBaseTestingUtility();
CONF = TEST_UTIL.getConfiguration();
CONF.setStrings(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY,
RowCountEndpoint.class.getName());
TEST_UTIL.startMiniCluster();
TEST_UTIL.createTable(TEST_TABLE, TEST_FAMILY);
}
// @Ignore @AfterClass
public static void tearDownAfterClass() throws Exception {
TEST_UTIL.shutdownMiniCluster();
}
// @Ignore @Test
public void testEndpoint() throws Throwable {
Table table = new HTable(CONF, TEST_TABLE);
// insert some test rows
for (int i=0; i<5; i++) {
byte[] iBytes = Bytes.toBytes(i);
Put p = new Put(iBytes);
p.add(TEST_FAMILY, TEST_COLUMN, iBytes);
table.put(p);
}
final ExampleProtos.CountRequest request = ExampleProtos.CountRequest.getDefaultInstance();
Map<byte[],Long> results = table.coprocessorService(ExampleProtos.RowCountService.class,
null, null,
new Batch.Call<ExampleProtos.RowCountService,Long>() {
public Long call(ExampleProtos.RowCountService counter) throws IOException {
ServerRpcController controller = new ServerRpcController();
BlockingRpcCallback<ExampleProtos.CountResponse> rpcCallback =
new BlockingRpcCallback<ExampleProtos.CountResponse>();
counter.getRowCount(controller, request, rpcCallback);
ExampleProtos.CountResponse response = rpcCallback.get();
if (controller.failedOnException()) {
throw controller.getFailedOn();
}
return (response != null && response.hasCount()) ? response.getCount() : 0;
}
});
// should be one region with results
assertEquals(1, results.size());
Iterator<Long> iter = results.values().iterator();
Long val = iter.next();
assertNotNull(val);
assertEquals(5l, val.longValue());
}
}