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package parallelai.spyglass.hbase;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.TableExistsException;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.io.hfile.Compression;
import org.apache.hadoop.hbase.regionserver.StoreFile;
import org.apache.hadoop.hbase.util.Bytes;
import junit.framework.Assert;
import org.junit.Test;
/**
* Class generates TWO tables in HBase 'TABLE_01' and 'TABLE_02'
*
* Those tables are used by the 'integration-testing' of HBaseSource
* in file HBaseSourceShouldRead.scala
*
* Run with:
* mvn -Dtest=parallelai.spyglass.hbase.skybase.GenerateTestingHTables test
*
* @author Antwnis@gmail.com
*/
public class GenerateTestingHTables {
private static Configuration config = HBaseConfiguration.create();
private static final String QUORUM = "cldmgr.test.server.com";
private static final String QUORUM_PORT = "2181";
private static final Long STARTING_TIMESTAMP = 1260000000000L;
public static enum TestingTable {
TABLE_01, TABLE_02
}
private static final Log LOG = LogFactory.getLog(GenerateTestingHTables.class);
@Test
public void fakeTest() {
// Connect to Quorum
LOG.info("Connecting to " + QUORUM + ":" + QUORUM_PORT);
config.clear();
config.set("hbase.zookeeper.quorum", QUORUM);
config.set("hbase.zookeeper.property.clientPort", QUORUM_PORT);
// Delete test tables
try {
deleteTestTable(TestingTable.TABLE_01.name());
deleteTestTable(TestingTable.TABLE_02.name());
// Generate test tables
createTestTable(TestingTable.TABLE_01);
createTestTable(TestingTable.TABLE_02);
// Populate test tables
populateTestTable(TestingTable.TABLE_01);
populateTestTable(TestingTable.TABLE_02);
// Print content of test table
printHTable(TestingTable.TABLE_01);
// If we've reached here - the testing data are in
Assert.assertEquals("true", "true");
} catch (IOException e) {
LOG.error(e.toString());
}
}
private static void populateTestTable(TestingTable testingTable)
throws IOException {
// Load up HBase table
HTable table = new HTable(config, testingTable.name());
LOG.info("Populating table: " + testingTable.name());
// Table_01
if (testingTable == TestingTable.TABLE_01) {
Put put1 = new Put("2000-01-01 10:00:10".getBytes());
put1.add("data".getBytes(), "column1".getBytes(), STARTING_TIMESTAMP, "1".getBytes());
Put put2 = new Put("2000-01-01 10:05:00".getBytes());
put2.add("data".getBytes(), "column1".getBytes(), STARTING_TIMESTAMP, "2".getBytes());
Put put3 = new Put("2000-01-01 10:10:00".getBytes());
put3.add("data".getBytes(), "column1".getBytes(), STARTING_TIMESTAMP, "3".getBytes());
table.put(put1);
table.put(put2);
table.put(put3);
} else
// Table_02
if (testingTable == TestingTable.TABLE_02) {
// 3 versions at 10 o'clock
byte[] k1 = "2000-01-01 10:00:00".getBytes();
Put put1 = new Put(k1);
put1.add("data".getBytes(), "column1".getBytes(), STARTING_TIMESTAMP , "1".getBytes());
Put put2 = new Put(k1);
put2.add("data".getBytes(), "column1".getBytes(), STARTING_TIMESTAMP + 1000L, "2".getBytes());
Put put3 = new Put(k1);
put3.add("data".getBytes(), "column1".getBytes(), STARTING_TIMESTAMP + 2000L, "3".getBytes());
// 3 versions at 11 o'clock
byte[] k2 = "2000-01-01 11:00:00".getBytes();
Put put4 = new Put(k2);
put4.add("data".getBytes(), "column1".getBytes(), STARTING_TIMESTAMP , "4".getBytes());
Put put5 = new Put(k2);
put5.add("data".getBytes(), "column1".getBytes(), STARTING_TIMESTAMP + 1000L, "5".getBytes());
Put put6 = new Put(k2);
put6.add("data".getBytes(), "column1".getBytes(), STARTING_TIMESTAMP + 2000L, "6".getBytes());
// Generate list of puts
List<Put> puts = new ArrayList<Put>();
puts.add(put1);
puts.add(put2);
puts.add(put3);
puts.add(put4);
puts.add(put5);
puts.add(put6);
table.put(puts);
}
table.close();
}
private static void createTestTable(TestingTable testingTable)
throws IOException {
// Reset configuration
config.clear();
config.set("hbase.zookeeper.quorum", QUORUM);
config.set("hbase.zookeeper.property.clientPort", QUORUM_PORT);
HBaseAdmin hbase = new HBaseAdmin(config);
// Get and set the name of the new table
String tableName = testingTable.name();
HTableDescriptor newTable = new HTableDescriptor(tableName);
// Table1
if (testingTable == TestingTable.TABLE_01) {
HColumnDescriptor meta = new HColumnDescriptor("data");
meta.setMaxVersions(3)
.setCompressionType(Compression.Algorithm.NONE)
.setInMemory(HColumnDescriptor.DEFAULT_IN_MEMORY)
.setBlockCacheEnabled(HColumnDescriptor.DEFAULT_BLOCKCACHE)
.setTimeToLive(HColumnDescriptor.DEFAULT_TTL)
.setBloomFilterType(StoreFile.BloomType.NONE);
newTable.addFamily(meta);
// Table2
} else if (testingTable == TestingTable.TABLE_02) {
HColumnDescriptor meta = new HColumnDescriptor("data".getBytes());
meta.setMaxVersions(3)
.setCompressionType(Compression.Algorithm.NONE)
.setInMemory(HColumnDescriptor.DEFAULT_IN_MEMORY)
.setBlockCacheEnabled(HColumnDescriptor.DEFAULT_BLOCKCACHE)
.setTimeToLive(HColumnDescriptor.DEFAULT_TTL)
.setBloomFilterType(StoreFile.BloomType.NONE);
// HColumnDescriptor prefix = new HColumnDescriptor("account".getBytes());
// newTable.addFamily(prefix);
newTable.addFamily(meta);
LOG.info("scan 'TABLE_02' , { VERSIONS => 3 }");
}
try {
LOG.info("Creating table " + tableName);
hbase.createTable(newTable);
} catch (TableExistsException et) {
LOG.error("TableExistsException for table: " + tableName);
LOG.debug(et.toString());
} catch (IOException e) {
LOG.error("IOException: " + e.toString());
}
hbase.close();
}
/**
* Method to disable and delete HBase Tables i.e. "int-test-01"
*/
private static void deleteTestTable(String tableName) throws IOException {
// Reset configuration
config.clear();
config.set("hbase.zookeeper.quorum", QUORUM);
config.set("hbase.zookeeper.property.clientPort", QUORUM_PORT);
HBaseAdmin hbase = new HBaseAdmin(config);
if (hbase.tableExists(tableName)) {
LOG.info("Table: " + tableName + " exists.");
hbase.disableTable(tableName);
hbase.deleteTable(tableName);
LOG.info("Table: " + tableName + " disabled and deleted.");
} else {
LOG.info("Table: " + tableName + " does not exist.");
}
hbase.close();
}
/**
* Method to print-out an HTable
*/
private static void printHTable(TestingTable testingTable)
throws IOException {
HTable table = new HTable(config, testingTable.name());
Scan s = new Scan();
// Let scanner know which columns we are interested in
ResultScanner scanner = table.getScanner(s);
LOG.info("Printing HTable: " + Bytes.toString(table.getTableName()));
try {
// Iterate results
for (Result rr = scanner.next(); rr != null; rr = scanner.next()) {
String key = Bytes.toString(rr.getRow());
Iterator<KeyValue> iter = rr.list().iterator();
String header = "Key:\t";
String data = key + "\t";
while (iter.hasNext()) {
KeyValue kv = iter.next();
header += Bytes.toString(kv.getFamily()) + ":"
+ Bytes.toString(kv.getQualifier()) + "\t";
data += Bytes.toString(kv.getValue()) + "\t";
}
LOG.info(header);
LOG.info(data);
}
System.out.println();
} finally {
// Make sure you close your scanners when you are done!
// Thats why we have it inside a try/finally clause
scanner.close();
table.close();
}
}
}
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