Examples with Result org.apache.hadoop.hbase.client.Result used on opensource projects

Example 11 with Result

use of org.apache.hadoop.hbase.client.Result in project hbase by apache.

the class HelloHBase method getAndPrintRowContents.

/**
   * Invokes Table#get and prints out the contents of the retrieved row.
   *
   * @param table Standard Table object
   * @throws IOException If IO problem encountered
   */
static void getAndPrintRowContents(final Table table) throws IOException {
    Result row = table.get(new Get(MY_ROW_ID));
    System.out.println("Row [" + Bytes.toString(row.getRow()) + "] was retrieved from Table [" + table.getName().getNameAsString() + "] in HBase, with the following content:");
    for (Entry<byte[], NavigableMap<byte[], byte[]>> colFamilyEntry : row.getNoVersionMap().entrySet()) {
        String columnFamilyName = Bytes.toString(colFamilyEntry.getKey());
        System.out.println("  Columns in Column Family [" + columnFamilyName + "]:");
        for (Entry<byte[], byte[]> columnNameAndValueMap : colFamilyEntry.getValue().entrySet()) {
            System.out.println("    Value of Column [" + columnFamilyName + ":" + Bytes.toString(columnNameAndValueMap.getKey()) + "] == " + Bytes.toString(columnNameAndValueMap.getValue()));
        }
    }
}

Example 12 with Result

use of org.apache.hadoop.hbase.client.Result in project hbase by apache.

the class TestHelloHBase method testDeleteRow.

@Test
public void testDeleteRow() throws IOException {
    Admin admin = TEST_UTIL.getAdmin();
    admin.createNamespace(NamespaceDescriptor.create(HelloHBase.MY_NAMESPACE_NAME).build());
    Table table = TEST_UTIL.createTable(HelloHBase.MY_TABLE_NAME, HelloHBase.MY_COLUMN_FAMILY_NAME);
    table.put(new Put(HelloHBase.MY_ROW_ID).addColumn(HelloHBase.MY_COLUMN_FAMILY_NAME, HelloHBase.MY_FIRST_COLUMN_QUALIFIER, Bytes.toBytes("xyz")));
    HelloHBase.deleteRow(table);
    Result row = table.get(new Get(HelloHBase.MY_ROW_ID));
    assertEquals("#deleteRow failed to delete row.", true, row.isEmpty());
    TEST_UTIL.deleteTable(HelloHBase.MY_TABLE_NAME);
    admin.deleteNamespace(HelloHBase.MY_NAMESPACE_NAME);
}

Example 13 with Result

use of org.apache.hadoop.hbase.client.Result in project hbase by apache.

the class TestHelloHBase method testPutRowToTable.

@Test
public void testPutRowToTable() throws IOException {
    Admin admin = TEST_UTIL.getAdmin();
    admin.createNamespace(NamespaceDescriptor.create(HelloHBase.MY_NAMESPACE_NAME).build());
    Table table = TEST_UTIL.createTable(HelloHBase.MY_TABLE_NAME, HelloHBase.MY_COLUMN_FAMILY_NAME);
    HelloHBase.putRowToTable(table);
    Result row = table.get(new Get(HelloHBase.MY_ROW_ID));
    assertEquals("#putRowToTable failed to store row.", false, row.isEmpty());
    TEST_UTIL.deleteTable(HelloHBase.MY_TABLE_NAME);
    admin.deleteNamespace(HelloHBase.MY_NAMESPACE_NAME);
}

Example 14 with Result

use of org.apache.hadoop.hbase.client.Result in project hbase by apache.

the class VerifyingRSGroupAdminClient method verify.

public void verify() throws IOException {
    Map<String, RSGroupInfo> groupMap = Maps.newHashMap();
    Set<RSGroupInfo> zList = Sets.newHashSet();
    for (Result result : table.getScanner(new Scan())) {
        RSGroupProtos.RSGroupInfo proto = RSGroupProtos.RSGroupInfo.parseFrom(result.getValue(RSGroupInfoManager.META_FAMILY_BYTES, RSGroupInfoManager.META_QUALIFIER_BYTES));
        groupMap.put(proto.getName(), RSGroupProtobufUtil.toGroupInfo(proto));
    }
    Assert.assertEquals(Sets.newHashSet(groupMap.values()), Sets.newHashSet(wrapped.listRSGroups()));
    try {
        String groupBasePath = ZKUtil.joinZNode(zkw.znodePaths.baseZNode, "rsgroup");
        for (String znode : ZKUtil.listChildrenNoWatch(zkw, groupBasePath)) {
            byte[] data = ZKUtil.getData(zkw, ZKUtil.joinZNode(groupBasePath, znode));
            if (data.length > 0) {
                ProtobufUtil.expectPBMagicPrefix(data);
                ByteArrayInputStream bis = new ByteArrayInputStream(data, ProtobufUtil.lengthOfPBMagic(), data.length);
                zList.add(RSGroupProtobufUtil.toGroupInfo(RSGroupProtos.RSGroupInfo.parseFrom(bis)));
            }
        }
        Assert.assertEquals(zList.size(), groupMap.size());
        for (RSGroupInfo RSGroupInfo : zList) {
            Assert.assertTrue(groupMap.get(RSGroupInfo.getName()).equals(RSGroupInfo));
        }
    } catch (KeeperException e) {
        throw new IOException("ZK verification failed", e);
    } catch (DeserializationException e) {
        throw new IOException("ZK verification failed", e);
    } catch (InterruptedException e) {
        throw new IOException("ZK verification failed", e);
    }
}

Example 15 with Result

use of org.apache.hadoop.hbase.client.Result in project hbase by apache.

the class TestRemoteTable method testDelete.

@Test
public void testDelete() throws IOException {
    Put put = new Put(ROW_3);
    put.addColumn(COLUMN_1, QUALIFIER_1, VALUE_1);
    put.addColumn(COLUMN_2, QUALIFIER_2, VALUE_2);
    remoteTable.put(put);
    Get get = new Get(ROW_3);
    get.addFamily(COLUMN_1);
    get.addFamily(COLUMN_2);
    Result result = remoteTable.get(get);
    byte[] value1 = result.getValue(COLUMN_1, QUALIFIER_1);
    byte[] value2 = result.getValue(COLUMN_2, QUALIFIER_2);
    assertNotNull(value1);
    assertTrue(Bytes.equals(VALUE_1, value1));
    assertNotNull(value2);
    assertTrue(Bytes.equals(VALUE_2, value2));
    Delete delete = new Delete(ROW_3);
    delete.addColumn(COLUMN_2, QUALIFIER_2);
    remoteTable.delete(delete);
    get = new Get(ROW_3);
    get.addFamily(COLUMN_1);
    get.addFamily(COLUMN_2);
    result = remoteTable.get(get);
    value1 = result.getValue(COLUMN_1, QUALIFIER_1);
    value2 = result.getValue(COLUMN_2, QUALIFIER_2);
    assertNotNull(value1);
    assertTrue(Bytes.equals(VALUE_1, value1));
    assertNull(value2);
    delete = new Delete(ROW_3);
    delete.setTimestamp(1L);
    remoteTable.delete(delete);
    get = new Get(ROW_3);
    get.addFamily(COLUMN_1);
    get.addFamily(COLUMN_2);
    result = remoteTable.get(get);
    value1 = result.getValue(COLUMN_1, QUALIFIER_1);
    value2 = result.getValue(COLUMN_2, QUALIFIER_2);
    assertNotNull(value1);
    assertTrue(Bytes.equals(VALUE_1, value1));
    assertNull(value2);
    delete = new Delete(ROW_3);
    remoteTable.delete(delete);
    get = new Get(ROW_3);
    get.addFamily(COLUMN_1);
    get.addFamily(COLUMN_2);
    result = remoteTable.get(get);
    value1 = result.getValue(COLUMN_1, QUALIFIER_1);
    value2 = result.getValue(COLUMN_2, QUALIFIER_2);
    assertNull(value1);
    assertNull(value2);
}