@Test
  public void testTTL() throws Exception {
    TableName tableName = TableName.valueOf("testTTL");
    if (TEST_UTIL.getHBaseAdmin().tableExists(tableName)) {
      TEST_UTIL.deleteTable(tableName);
    }
    HTableDescriptor desc = new HTableDescriptor(tableName);
    HColumnDescriptor hcd = new HColumnDescriptor(F).setMaxVersions(10).setTimeToLive(1);
    desc.addFamily(hcd);
    TEST_UTIL.getHBaseAdmin().createTable(desc);
    Table t = new HTable(new Configuration(TEST_UTIL.getConfiguration()), tableName);
    long now = EnvironmentEdgeManager.currentTime();
    ManualEnvironmentEdge me = new ManualEnvironmentEdge();
    me.setValue(now);
    EnvironmentEdgeManagerTestHelper.injectEdge(me);
    // 2s in the past
    long ts = now - 2000;
    // Set the TTL override to 3s
    Put p = new Put(R);
    p.setAttribute("ttl", new byte[] {});
    p.add(F, tableName.getName(), Bytes.toBytes(3000L));
    t.put(p);

    p = new Put(R);
    p.add(F, Q, ts, Q);
    t.put(p);
    p = new Put(R);
    p.add(F, Q, ts + 1, Q);
    t.put(p);

    // these two should be expired but for the override
    // (their ts was 2s in the past)
    Get g = new Get(R);
    g.setMaxVersions(10);
    Result r = t.get(g);
    // still there?
    assertEquals(2, r.size());

    TEST_UTIL.flush(tableName);
    TEST_UTIL.compact(tableName, true);

    g = new Get(R);
    g.setMaxVersions(10);
    r = t.get(g);
    // still there?
    assertEquals(2, r.size());

    // roll time forward 2s.
    me.setValue(now + 2000);
    // now verify that data eventually does expire
    g = new Get(R);
    g.setMaxVersions(10);
    r = t.get(g);
    // should be gone now
    assertEquals(0, r.size());
    t.close();
  }
Ejemplo n.º 2
0
  @Test
  public void testStartStopRow() throws Exception {
    final TableName TABLENAME1 = TableName.valueOf("testStartStopRow1");
    final TableName TABLENAME2 = TableName.valueOf("testStartStopRow2");
    final byte[] FAMILY = Bytes.toBytes("family");
    final byte[] COLUMN1 = Bytes.toBytes("c1");
    final byte[] ROW0 = Bytes.toBytesBinary("\\x01row0");
    final byte[] ROW1 = Bytes.toBytesBinary("\\x01row1");
    final byte[] ROW2 = Bytes.toBytesBinary("\\x01row2");

    Table t1 = TEST_UTIL.createTable(TABLENAME1, FAMILY);
    Table t2 = TEST_UTIL.createTable(TABLENAME2, FAMILY);

    // put rows into the first table
    Put p = new Put(ROW0);
    p.addColumn(FAMILY, COLUMN1, COLUMN1);
    t1.put(p);
    p = new Put(ROW1);
    p.addColumn(FAMILY, COLUMN1, COLUMN1);
    t1.put(p);
    p = new Put(ROW2);
    p.addColumn(FAMILY, COLUMN1, COLUMN1);
    t1.put(p);

    CopyTable copy = new CopyTable();
    assertEquals(
        0,
        ToolRunner.run(
            new Configuration(TEST_UTIL.getConfiguration()),
            copy,
            new String[] {
              "--new.name=" + TABLENAME2,
              "--startrow=\\x01row1",
              "--stoprow=\\x01row2",
              TABLENAME1.getNameAsString()
            }));

    // verify the data was copied into table 2
    // row1 exist, row0, row2 do not exist
    Get g = new Get(ROW1);
    Result r = t2.get(g);
    assertEquals(1, r.size());
    assertTrue(CellUtil.matchingQualifier(r.rawCells()[0], COLUMN1));

    g = new Get(ROW0);
    r = t2.get(g);
    assertEquals(0, r.size());

    g = new Get(ROW2);
    r = t2.get(g);
    assertEquals(0, r.size());

    t1.close();
    t2.close();
    TEST_UTIL.deleteTable(TABLENAME1);
    TEST_UTIL.deleteTable(TABLENAME2);
  }
  @Test
  public void testBaseCases() throws Exception {
    TableName tableName = TableName.valueOf("baseCases");
    if (TEST_UTIL.getHBaseAdmin().tableExists(tableName)) {
      TEST_UTIL.deleteTable(tableName);
    }
    Table t = TEST_UTIL.createTable(tableName, F, 1);
    // set the version override to 2
    Put p = new Put(R);
    p.setAttribute("versions", new byte[] {});
    p.add(F, tableName.getName(), Bytes.toBytes(2));
    t.put(p);

    long now = EnvironmentEdgeManager.currentTime();

    // insert 2 versions
    p = new Put(R);
    p.add(F, Q, now, Q);
    t.put(p);
    p = new Put(R);
    p.add(F, Q, now + 1, Q);
    t.put(p);
    Get g = new Get(R);
    g.setMaxVersions(10);
    Result r = t.get(g);
    assertEquals(2, r.size());

    TEST_UTIL.flush(tableName);
    TEST_UTIL.compact(tableName, true);

    // both version are still visible even after a flush/compaction
    g = new Get(R);
    g.setMaxVersions(10);
    r = t.get(g);
    assertEquals(2, r.size());

    // insert a 3rd version
    p = new Put(R);
    p.add(F, Q, now + 2, Q);
    t.put(p);
    g = new Get(R);
    g.setMaxVersions(10);
    r = t.get(g);
    // still only two version visible
    assertEquals(2, r.size());

    t.close();
  }
Ejemplo n.º 4
0
 public Optional<Response> get(Optional<Request> request) {
   if (!valid) {
     Logger.error("CANNOT GET! NO VALID CONNECTION");
     return Optional.empty();
   }
   Response response = new Response();
   if (request.isPresent()) {
     Request r = request.get();
     response.key = r.key;
     response.table = r.table;
     try {
       final Table htable = connection.getTable(TableName.valueOf(r.table));
       Result result = htable.get(new Get(r.key));
       if (result == null || result.isEmpty()) {
         return Optional.empty();
       }
       r.columns.forEach(
           c ->
               response.columns.add(
                   new Request.Column(
                       c.family,
                       c.qualifier,
                       result.getValue(c.family.getBytes(), c.qualifier.getBytes()))));
     } catch (IOException e) {
       e.printStackTrace();
     }
   }
   return Optional.of(response);
 }
Ejemplo n.º 5
0
  @Test(timeout = 300000)
  public void testReplicationWithCellTags() throws Exception {
    LOG.info("testSimplePutDelete");
    Put put = new Put(ROW);
    put.setAttribute("visibility", Bytes.toBytes("myTag3"));
    put.add(FAMILY, ROW, ROW);

    htable1 = utility1.getConnection().getTable(TABLE_NAME);
    htable1.put(put);

    Get get = new Get(ROW);
    try {
      for (int i = 0; i < NB_RETRIES; i++) {
        if (i == NB_RETRIES - 1) {
          fail("Waited too much time for put replication");
        }
        Result res = htable2.get(get);
        if (res.size() == 0) {
          LOG.info("Row not available");
          Thread.sleep(SLEEP_TIME);
        } else {
          assertArrayEquals(res.value(), ROW);
          assertEquals(1, TestCoprocessorForTagsAtSink.tags.size());
          Tag tag = TestCoprocessorForTagsAtSink.tags.get(0);
          assertEquals(TAG_TYPE, tag.getType());
          break;
        }
      }
    } finally {
      TestCoprocessorForTagsAtSink.tags = null;
    }
  }
Ejemplo n.º 6
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  public static int getDynamicTable(Configuration config) {
    /** Connection to the cluster. A single connection shared by all application threads. */
    Connection connection = null;
    /** A lightweight handle to a specific table. Used from a single thread. */
    Table table = null;

    try {
      connection = ConnectionFactory.createConnection(config);
      table = connection.getTable(TABLE_NAME1);
      Get get = new Get(Bytes.toBytes("cloudera"));
      get.addFamily(CF);
      get.setMaxVersions(Integer.MAX_VALUE);
      Result result = table.get(get);

      NavigableMap<byte[], NavigableMap<byte[], NavigableMap<Long, byte[]>>> map = result.getMap();
      for (Entry<byte[], NavigableMap<byte[], NavigableMap<Long, byte[]>>> columnFamilyEntry :
          map.entrySet()) {
        NavigableMap<byte[], NavigableMap<Long, byte[]>> columnMap = columnFamilyEntry.getValue();
        for (Entry<byte[], NavigableMap<Long, byte[]>> columnEntry : columnMap.entrySet()) {
          NavigableMap<Long, byte[]> cellMap = columnEntry.getValue();
          for (Entry<Long, byte[]> cellEntry : cellMap.entrySet()) {
            System.out.println(
                String.format(
                    "Key : %s, Value :%s",
                    Bytes.toString(columnEntry.getKey()), Bytes.toString(cellEntry.getValue())));
          }
        }
      }
    } catch (IOException e) {
      e.printStackTrace();
    }

    return 0;
  }
    private static VesselTrackInfo getTrackInfo(Table TrackInfo_Table, String IMO_str)
        throws IOException {
      Get get = new Get(Bytes.toBytes(IMO_str));
      get.addColumn(details, lastlocation);
      get.addColumn(details, firstrecordtime);
      get.addColumn(details, lastrecordtime);

      Result result = TrackInfo_Table.get(get);

      byte[] last_location = result.getValue(details, lastlocation);
      byte[] fist_recordtime = result.getValue(details, firstrecordtime);
      byte[] last_recordtime = result.getValue(details, lastrecordtime);

      VesselTrackInfo trackinfo = new VesselTrackInfo();
      trackinfo.LastLocation = last_location;

      if (fist_recordtime != null) {
        trackinfo.FirstRecordTime =
            DateTime.parse(Bytes.toString(fist_recordtime), rawformatter).getMillis();
      }

      if (last_recordtime != null) {
        trackinfo.LastRecordTime =
            DateTime.parse(Bytes.toString(last_recordtime), rawformatter).getMillis();
      }

      return trackinfo;
    }
    public static VesselLocation getLocation(Table VTLocation_Table, String RowKey)
        throws IOException {
      if (RowKey != null) {
        Get get = new Get(Bytes.toBytes(RowKey));
        Result result = VTLocation_Table.get(get);

        VesselLocation VL = new VesselLocation();

        for (Cell cell : result.rawCells()) {
          String Qualifier = Bytes.toString(CellUtil.cloneQualifier(cell));
          String Value = Bytes.toString(CellUtil.cloneValue(cell));

          if (Qualifier.equals("coordinates")) {
            VL.coordinates = Value;
          } else if (Qualifier.equals("speed")) {
            VL.speed = Value;
          } else if (Qualifier.equals("destination")) {
            VL.destination = Value;
          } else if (Qualifier.equals("timestamp")) {
            VL.recordtime = DateTime.parse(Value, rawformatter).getMillis();
          } else if (Qualifier.equals("previouslocation")) {
            VL.previouslocation = Value;
          } else if (Qualifier.equals("nextlocation")) {
            VL.nextlocation = Value;
          }
        }
        return VL;
      } else {
        return null;
      }
    }
Ejemplo n.º 9
0
 public Optional<byte[]> get(
     Optional<String> table,
     Optional<String> family,
     Optional<String> qualifier,
     Optional<String> key) {
   if (!valid) {
     Logger.error("CANNOT GET! NO VALID CONNECTION");
     return Optional.empty();
   }
   if (table.isPresent()
       && family.isPresent()
       && qualifier.isPresent()
       && key.isPresent()
       && !key.get().isEmpty()) {
     try {
       final Table htable = connection.getTable(TableName.valueOf(table.get()));
       Result result = htable.get(new Get(key.get().getBytes("UTF8")));
       return Optional.ofNullable(
           result.getValue(family.get().getBytes("UTF8"), qualifier.get().getBytes("UTF8")));
     } catch (IOException e) {
       e.printStackTrace();
     }
   }
   return Optional.empty();
 }
Ejemplo n.º 10
0
  /**
   * Read a record from the database. Each field/value pair from the result will be stored in a
   * HashMap.
   *
   * @param table The name of the table
   * @param key The record key of the record to read.
   * @param fields The list of fields to read, or null for all of them
   * @param result A HashMap of field/value pairs for the result
   * @return Zero on success, a non-zero error code on error
   */
  public Status read(
      String table, String key, Set<String> fields, HashMap<String, ByteIterator> result) {
    // if this is a "new" table, init HTable object. Else, use existing one
    if (!tableName.equals(table)) {
      currentTable = null;
      try {
        getHTable(table);
        tableName = table;
      } catch (IOException e) {
        System.err.println("Error accessing HBase table: " + e);
        return Status.ERROR;
      }
    }

    Result r = null;
    try {
      if (debug) {
        System.out.println("Doing read from HBase columnfamily " + columnFamily);
        System.out.println("Doing read for key: " + key);
      }
      Get g = new Get(Bytes.toBytes(key));
      if (fields == null) {
        g.addFamily(columnFamilyBytes);
      } else {
        for (String field : fields) {
          g.addColumn(columnFamilyBytes, Bytes.toBytes(field));
        }
      }
      r = currentTable.get(g);
    } catch (IOException e) {
      if (debug) {
        System.err.println("Error doing get: " + e);
      }
      return Status.ERROR;
    } catch (ConcurrentModificationException e) {
      // do nothing for now...need to understand HBase concurrency model better
      return Status.ERROR;
    }

    if (r.isEmpty()) {
      return Status.NOT_FOUND;
    }

    while (r.advance()) {
      final Cell c = r.current();
      result.put(
          Bytes.toString(CellUtil.cloneQualifier(c)),
          new ByteArrayByteIterator(CellUtil.cloneValue(c)));
      if (debug) {
        System.out.println(
            "Result for field: "
                + Bytes.toString(CellUtil.cloneQualifier(c))
                + " is: "
                + Bytes.toString(CellUtil.cloneValue(c)));
      }
    }
    return Status.OK;
  }
Ejemplo n.º 11
0
  public static void main(String[] args) throws Exception {
    conf.set("hbase.zookeeper.quorum", "hadoop271.itversity.com");
    conf.set("hbase.zookeeper.property.clientPort", "2181");

    Connection connection = ConnectionFactory.createConnection(conf);
    Table table = connection.getTable(TableName.valueOf("demo"));

    Scan scan1 = new Scan();
    ResultScanner scanner1 = table.getScanner(scan1);

    for (Result res : scanner1) {
      System.out.println(Bytes.toString(res.getRow()));
      System.out.println(Bytes.toString(res.getValue("cf1".getBytes(), "column1".getBytes())));
      System.out.println(Bytes.toString(res.getValue("cf1".getBytes(), "column2".getBytes())));
    }

    scanner1.close();

    Put put = new Put("3".getBytes());

    put.addColumn("cf1".getBytes(), "column1".getBytes(), "value1".getBytes());
    put.addColumn("cf1".getBytes(), "column2".getBytes(), "value2".getBytes());

    table.put(put);

    Get get = new Get("3".getBytes());
    Result getResult = table.get(get);
    System.out.println("Printing colunns for rowkey 3");
    System.out.println(Bytes.toString(getResult.getValue("cf1".getBytes(), "column1".getBytes())));
    System.out.println(Bytes.toString(getResult.getValue("cf1".getBytes(), "column2".getBytes())));

    scanner1 = table.getScanner(scan1);
    System.out.println("Before Delete");
    for (Result res : scanner1) {
      System.out.println(Bytes.toString(res.getRow()));
      System.out.println(Bytes.toString(res.getValue("cf1".getBytes(), "column1".getBytes())));
      System.out.println(Bytes.toString(res.getValue("cf1".getBytes(), "column2".getBytes())));
    }

    scanner1.close();

    Delete del = new Delete("3".getBytes());
    table.delete(del);

    System.out.println("After Delete");

    scanner1 = table.getScanner(scan1);

    for (Result res : scanner1) {
      System.out.println(Bytes.toString(res.getRow()));
      System.out.println(Bytes.toString(res.getValue("cf1".getBytes(), "column1".getBytes())));
      System.out.println(Bytes.toString(res.getValue("cf1".getBytes(), "column2".getBytes())));
    }

    scanner1.close();
    table.close();
    connection.close();
  }
Ejemplo n.º 12
0
  /** Test copy of table from sourceTable to targetTable all rows from family a */
  @Test
  public void testRenameFamily() throws Exception {
    TableName sourceTable = TableName.valueOf("sourceTable");
    TableName targetTable = TableName.valueOf("targetTable");

    byte[][] families = {FAMILY_A, FAMILY_B};

    Table t = TEST_UTIL.createTable(sourceTable, families);
    Table t2 = TEST_UTIL.createTable(targetTable, families);
    Put p = new Put(ROW1);
    p.addColumn(FAMILY_A, QUALIFIER, Bytes.toBytes("Data11"));
    p.addColumn(FAMILY_B, QUALIFIER, Bytes.toBytes("Data12"));
    p.addColumn(FAMILY_A, QUALIFIER, Bytes.toBytes("Data13"));
    t.put(p);
    p = new Put(ROW2);
    p.addColumn(FAMILY_B, QUALIFIER, Bytes.toBytes("Dat21"));
    p.addColumn(FAMILY_A, QUALIFIER, Bytes.toBytes("Data22"));
    p.addColumn(FAMILY_B, QUALIFIER, Bytes.toBytes("Data23"));
    t.put(p);

    long currentTime = System.currentTimeMillis();
    String[] args =
        new String[] {
          "--new.name=" + targetTable,
          "--families=a:b",
          "--all.cells",
          "--starttime=" + (currentTime - 100000),
          "--endtime=" + (currentTime + 100000),
          "--versions=1",
          sourceTable.getNameAsString()
        };
    assertNull(t2.get(new Get(ROW1)).getRow());

    assertTrue(runCopy(args));

    assertNotNull(t2.get(new Get(ROW1)).getRow());
    Result res = t2.get(new Get(ROW1));
    byte[] b1 = res.getValue(FAMILY_B, QUALIFIER);
    assertEquals("Data13", new String(b1));
    assertNotNull(t2.get(new Get(ROW2)).getRow());
    res = t2.get(new Get(ROW2));
    b1 = res.getValue(FAMILY_A, QUALIFIER);
    // Data from the family of B is not copied
    assertNull(b1);
  }
    private static String getVesselType(Table Vessel_Table, String IMO_str) throws IOException {
      Get get = new Get(Bytes.toBytes(IMO_str));
      get.addColumn(ves, TYPE);

      Result result = Vessel_Table.get(get);
      byte[] type = result.getValue(ves, TYPE);

      return Bytes.toString(type);
    }
Ejemplo n.º 14
0
 public Result get(String table, String family, byte[] key) {
   final Table htable;
   try {
     htable = connection.getTable(TableName.valueOf(table));
     return htable.get(new Get(key));
   } catch (IOException e) {
     e.printStackTrace();
   }
   return null;
 }
    // Get all events with exit at last location
    public static Map<Integer, VesselEvent> getAllEventsStartBeforeEndAfterBeforeLocation(
        Table VTEvent_Table, String IMO_str, VesselLocation location) throws IOException {
      Scan getAllEventsWithExistAtLastLocation = new Scan();
      getAllEventsWithExistAtLastLocation
          .setStartRow(
              Bytes.toBytes(
                  IMO_str + LpadNum(Long.MAX_VALUE - location.recordtime, 19) + "0000000000"))
          .setStopRow(Bytes.toBytes(IMO_str + LpadNum(Long.MAX_VALUE, 19) + "9999999999"))
          .addColumn(details, exittime);
      getAllEventsWithExistAtLastLocation.setCaching(100);

      Filter ExistTimeValuefilter =
          new ValueFilter(
              CompareFilter.CompareOp.GREATER_OR_EQUAL,
              new BinaryComparator(
                  Bytes.toBytes(new DateTime(location.recordtime).toString(rawformatter))));
      getAllEventsWithExistAtLastLocation.setFilter(ExistTimeValuefilter);

      ResultScanner Result_event = VTEvent_Table.getScanner(getAllEventsWithExistAtLastLocation);

      Map<Integer, VesselEvent> events = new HashMap<Integer, VesselEvent>();

      for (Result res : Result_event) {

        Get get = new Get(res.getRow());
        get.addColumn(details, entrytime);
        get.addColumn(details, entrycoordinates);

        Result result = VTEvent_Table.get(get);
        String rowkey = Bytes.toString(result.getRow());
        String polygonid = rowkey.substring(26);

        VesselEvent VE = new VesselEvent();
        VE.exittime = location.recordtime;
        VE.exitcoordinates = location.coordinates;
        VE.destination = location.destination;
        VE.polygonid = Integer.parseInt(polygonid);

        for (Cell cell : result.rawCells()) {
          String Qualifier = Bytes.toString(CellUtil.cloneQualifier(cell));
          String Value = Bytes.toString(CellUtil.cloneValue(cell));

          if (Qualifier.equals("entertime")) {
            VE.entrytime = DateTime.parse(Value, rawformatter).getMillis();
          } else if (Qualifier.equals("entercoordinates")) {
            VE.entrycoordinates = Value;
          }
        }

        events.put(VE.polygonid, VE);
      }

      Result_event.close();
      return events;
    }
Ejemplo n.º 16
0
  private void doCopyTableTest(boolean bulkload) throws Exception {
    final TableName TABLENAME1 = TableName.valueOf("testCopyTable1");
    final TableName TABLENAME2 = TableName.valueOf("testCopyTable2");
    final byte[] FAMILY = Bytes.toBytes("family");
    final byte[] COLUMN1 = Bytes.toBytes("c1");

    try (Table t1 = TEST_UTIL.createTable(TABLENAME1, FAMILY);
        Table t2 = TEST_UTIL.createTable(TABLENAME2, FAMILY); ) {
      // put rows into the first table
      for (int i = 0; i < 10; i++) {
        Put p = new Put(Bytes.toBytes("row" + i));
        p.addColumn(FAMILY, COLUMN1, COLUMN1);
        t1.put(p);
      }

      CopyTable copy = new CopyTable();

      int code;
      if (bulkload) {
        code =
            ToolRunner.run(
                new Configuration(TEST_UTIL.getConfiguration()),
                copy,
                new String[] {
                  "--new.name=" + TABLENAME2.getNameAsString(),
                  "--bulkload",
                  TABLENAME1.getNameAsString()
                });
      } else {
        code =
            ToolRunner.run(
                new Configuration(TEST_UTIL.getConfiguration()),
                copy,
                new String[] {
                  "--new.name=" + TABLENAME2.getNameAsString(), TABLENAME1.getNameAsString()
                });
      }
      assertEquals("copy job failed", 0, code);

      // verify the data was copied into table 2
      for (int i = 0; i < 10; i++) {
        Get g = new Get(Bytes.toBytes("row" + i));
        Result r = t2.get(g);
        assertEquals(1, r.size());
        assertTrue(CellUtil.matchingQualifier(r.rawCells()[0], COLUMN1));
      }
    } finally {
      TEST_UTIL.deleteTable(TABLENAME1);
      TEST_UTIL.deleteTable(TABLENAME2);
    }
  }
  public static void main(String[] args) throws IOException {
    Configuration conf = HBaseConfiguration.create();

    HBaseHelper helper = HBaseHelper.getHelper(conf);
    helper.dropTable("testtable");
    helper.createTable("testtable", "colfam1", "colfam2");
    System.out.println("Adding rows to table...");
    helper.fillTable("testtable", 1, 10, 10, "colfam1", "colfam2");

    Connection connection = ConnectionFactory.createConnection(conf);
    Table table = connection.getTable(TableName.valueOf("testtable"));
    // vv SingleColumnValueFilterExample
    SingleColumnValueFilter filter =
        new SingleColumnValueFilter(
            Bytes.toBytes("colfam1"),
            Bytes.toBytes("col-5"),
            CompareFilter.CompareOp.NOT_EQUAL,
            new SubstringComparator("val-5"));
    filter.setFilterIfMissing(true);

    Scan scan = new Scan();
    scan.setFilter(filter);
    ResultScanner scanner = table.getScanner(scan);
    // ^^ SingleColumnValueFilterExample
    System.out.println("Results of scan:");
    // vv SingleColumnValueFilterExample
    for (Result result : scanner) {
      for (Cell cell : result.rawCells()) {
        System.out.println(
            "Cell: "
                + cell
                + ", Value: "
                + Bytes.toString(
                    cell.getValueArray(), cell.getValueOffset(), cell.getValueLength()));
      }
    }
    scanner.close();

    Get get = new Get(Bytes.toBytes("row-6"));
    get.setFilter(filter);
    Result result = table.get(get);
    System.out.println("Result of get: ");
    for (Cell cell : result.rawCells()) {
      System.out.println(
          "Cell: "
              + cell
              + ", Value: "
              + Bytes.toString(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength()));
    }
    // ^^ SingleColumnValueFilterExample
  }
  public static void main(String[] args) throws IOException {

    Configuration conf = HBaseClientHelper.loadDefaultConfiguration();

    Connection connection = ConnectionFactory.createConnection(conf);

    try {

      Table table = connection.getTable(TableName.valueOf("testtable"));
      try {
        // 1 Put
        Put p = new Put(Bytes.toBytes("row1"));
        p.addColumn(Bytes.toBytes("colfam1"), Bytes.toBytes("qual1"), Bytes.toBytes("val1"));

        table.put(p);

        // 2 Get
        Get g = new Get(Bytes.toBytes("row1"));
        Result r = table.get(g);
        byte[] value = r.getValue(Bytes.toBytes("colfam1"), Bytes.toBytes("qual1"));
        String valueStr = Bytes.toString(value);
        System.out.println("GET: " + valueStr);

        // 3 Scan
        Scan s = new Scan();
        s.addColumn(Bytes.toBytes("colfam1"), Bytes.toBytes("qual1"));
        ResultScanner scanner = table.getScanner(s);
        try {
          for (Result rr = scanner.next(); rr != null; rr = scanner.next()) {
            System.out.println("Found row: " + rr);
          }

          // The other approach is to use a foreach loop. Scanners are
          // iterable!
          // for (Result rr : scanner) {
          // System.out.println("Found row: " + rr);
          // }
        } finally {
          scanner.close();
        }

        // Close your table and cluster connection.
      } finally {
        if (table != null) table.close();
      }
    } finally {
      connection.close();
    }
  }
Ejemplo n.º 19
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 @Test
 public void testReadModifyWrite() throws Throwable {
   prepareTestData();
   failures.set(0);
   int numThreads = 100;
   concurrentExec(new IncrementRunner(), numThreads);
   Get get = new Get(ROW);
   LOG.debug("row keyvalues:" + stringifyKvs(table.get(get).listCells()));
   int finalCounter = incrementCounter(table);
   int failureNumber = failures.get();
   if (failureNumber > 0) {
     LOG.debug("We failed " + failureNumber + " times during test");
   }
   assertEquals(numThreads + 1 - failureNumber, finalCounter);
 }
Ejemplo n.º 20
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  @Test
  public void testDoubleScan() throws Throwable {
    prepareTestData();

    CoprocessorRpcChannel channel = table.coprocessorService(ROW);
    RowProcessorEndpoint.FriendsOfFriendsProcessor processor =
        new RowProcessorEndpoint.FriendsOfFriendsProcessor(ROW, A);
    RowProcessorService.BlockingInterface service = RowProcessorService.newBlockingStub(channel);
    ProcessRequest request = RowProcessorClient.getRowProcessorPB(processor);
    ProcessResponse protoResult = service.process(null, request);
    FriendsOfFriendsProcessorResponse response =
        FriendsOfFriendsProcessorResponse.parseFrom(protoResult.getRowProcessorResult());
    Set<String> result = new HashSet<String>();
    result.addAll(response.getResultList());
    Set<String> expected = new HashSet<String>(Arrays.asList(new String[] {"d", "e", "f", "g"}));
    Get get = new Get(ROW);
    LOG.debug("row keyvalues:" + stringifyKvs(table.get(get).listCells()));
    assertEquals(expected, result);
  }
Ejemplo n.º 21
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  public static int getTable(Configuration config) throws IOException {
    /** Connection to the cluster. A single connection shared by all application threads. */
    Connection connection = null;
    /** A lightweight handle to a specific table. Used from a single thread. */
    Table table = null;
    try {
      // establish the connection to the cluster.
      connection = ConnectionFactory.createConnection(config);
      // retrieve a handle to the target table.
      table = connection.getTable(TABLE_NAME1);
      // describe the data we want to write.
      Get g = new Get(Bytes.toBytes("row4"));

      // send the data.
      table.get(g);
    } finally {
      // close everything down
      if (table != null) table.close();
      if (connection != null) connection.close();
    }
    return 0;
  }
Ejemplo n.º 22
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  @Test
  public void testAclTableEntries() throws Exception {
    String userTestNamespace = "userTestNsp";
    Table acl = UTIL.getConnection().getTable(AccessControlLists.ACL_TABLE_NAME);
    try {
      ListMultimap<String, TablePermission> perms =
          AccessControlLists.getNamespacePermissions(conf, TEST_NAMESPACE);

      perms = AccessControlLists.getNamespacePermissions(conf, TEST_NAMESPACE);
      for (Map.Entry<String, TablePermission> entry : perms.entries()) {
        LOG.debug(entry);
      }
      assertEquals(6, perms.size());

      // Grant and check state in ACL table
      grantOnNamespace(UTIL, userTestNamespace, TEST_NAMESPACE, Permission.Action.WRITE);

      Result result = acl.get(new Get(Bytes.toBytes(userTestNamespace)));
      assertTrue(result != null);
      perms = AccessControlLists.getNamespacePermissions(conf, TEST_NAMESPACE);
      assertEquals(7, perms.size());
      List<TablePermission> namespacePerms = perms.get(userTestNamespace);
      assertTrue(perms.containsKey(userTestNamespace));
      assertEquals(1, namespacePerms.size());
      assertEquals(TEST_NAMESPACE, namespacePerms.get(0).getNamespace());
      assertEquals(null, namespacePerms.get(0).getFamily());
      assertEquals(null, namespacePerms.get(0).getQualifier());
      assertEquals(1, namespacePerms.get(0).getActions().length);
      assertEquals(Permission.Action.WRITE, namespacePerms.get(0).getActions()[0]);

      // Revoke and check state in ACL table
      revokeFromNamespace(UTIL, userTestNamespace, TEST_NAMESPACE, Permission.Action.WRITE);

      perms = AccessControlLists.getNamespacePermissions(conf, TEST_NAMESPACE);
      assertEquals(6, perms.size());
    } finally {
      acl.close();
    }
  }
Ejemplo n.º 23
0
 @Test
 public void testMultipleRows() throws Throwable {
   prepareTestData();
   failures.set(0);
   int numThreads = 100;
   concurrentExec(new SwapRowsRunner(), numThreads);
   LOG.debug("row keyvalues:" + stringifyKvs(table.get(new Get(ROW)).listCells()));
   LOG.debug("row2 keyvalues:" + stringifyKvs(table.get(new Get(ROW2)).listCells()));
   int failureNumber = failures.get();
   if (failureNumber > 0) {
     LOG.debug("We failed " + failureNumber + " times during test");
   }
   if (!swapped) {
     assertEquals(rowSize, table.get(new Get(ROW)).listCells().size());
     assertEquals(row2Size, table.get(new Get(ROW2)).listCells().size());
   } else {
     assertEquals(rowSize, table.get(new Get(ROW2)).listCells().size());
     assertEquals(row2Size, table.get(new Get(ROW)).listCells().size());
   }
 }
  /**
   * Unfortunately, the easiest way to test this is to spin up a mini-cluster since we want to do
   * the usual compaction mechanism on the region, rather than going through the backdoor to the
   * region
   */
  @Test
  public void testRegionObserverCompactionTimeStacking() throws Exception {
    // setup a mini cluster so we can do a real compaction on a region
    Configuration conf = UTIL.getConfiguration();
    conf.setClass(HConstants.REGION_IMPL, CompactionCompletionNotifyingRegion.class, HRegion.class);
    conf.setInt("hbase.hstore.compaction.min", 2);
    UTIL.startMiniCluster();
    String tableName = "testRegionObserverCompactionTimeStacking";
    byte[] ROW = Bytes.toBytes("testRow");
    byte[] A = Bytes.toBytes("A");
    HTableDescriptor desc = new HTableDescriptor(TableName.valueOf(tableName));
    desc.addFamily(new HColumnDescriptor(A));
    desc.addCoprocessor(EmptyRegionObsever.class.getName(), null, Coprocessor.PRIORITY_USER, null);
    desc.addCoprocessor(
        NoDataFromCompaction.class.getName(), null, Coprocessor.PRIORITY_HIGHEST, null);

    Admin admin = UTIL.getHBaseAdmin();
    admin.createTable(desc);

    Table table = UTIL.getConnection().getTable(desc.getTableName());

    // put a row and flush it to disk
    Put put = new Put(ROW);
    put.add(A, A, A);
    table.put(put);

    HRegionServer rs = UTIL.getRSForFirstRegionInTable(desc.getTableName());
    List<HRegion> regions = rs.getOnlineRegions(desc.getTableName());
    assertEquals("More than 1 region serving test table with 1 row", 1, regions.size());
    HRegion region = regions.get(0);
    admin.flushRegion(region.getRegionName());
    CountDownLatch latch =
        ((CompactionCompletionNotifyingRegion) region).getCompactionStateChangeLatch();

    // put another row and flush that too
    put = new Put(Bytes.toBytes("anotherrow"));
    put.add(A, A, A);
    table.put(put);
    admin.flushRegion(region.getRegionName());

    // run a compaction, which normally would should get rid of the data
    // wait for the compaction checker to complete
    latch.await();
    // check both rows to ensure that they aren't there
    Get get = new Get(ROW);
    Result r = table.get(get);
    assertNull(
        "Got an unexpected number of rows - no data should be returned with the NoDataFromScan coprocessor. Found: "
            + r,
        r.listCells());

    get = new Get(Bytes.toBytes("anotherrow"));
    r = table.get(get);
    assertNull(
        "Got an unexpected number of rows - no data should be returned with the NoDataFromScan coprocessor Found: "
            + r,
        r.listCells());

    table.close();
    UTIL.shutdownMiniCluster();
  }