Examples of org.apache.cassandra.thrift.ColumnPath

org.apache.cassandra.thrift.ColumnPath
The ColumnPath is the path to a single column in Cassandra. It might make sense to think of ColumnPath and ColumnParent in terms of a directory structure. ColumnPath is used to looking up a single column. @param column_family. The name of the CF of the column being looked up. @param super_column. The super column name. @param column. The column name.

  IllegalStateException, HNotFoundException, Exception {
    KeyspaceService keyspace = new KeyspaceServiceImpl("Keyspace1", new QuorumAllConsistencyLevelPolicy(), 
        connectionManager, FailoverPolicy.ON_FAIL_TRY_ALL_AVAILABLE, user1CredentialsBad);
    try {
      // insert value
      ColumnPath cp = new ColumnPath("Standard1");
      cp.setColumn(bytes("testInsertAndGetAndRemove"));
      for (int i = 0; i < 100; i++) {
        keyspace.insert("testInsertAndGetAndRemove_" + i, cp,
            StringSerializer.get().toByteBuffer("testInsertAndGetAndRemove_value_" + i));
      }
      fail("Should have gotten a wrapped AuthenticationException");

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        setColumnFamily(cf).setKey("key0").setName("name").execute();
    assertNull(columnResult.get());
  }


  private void assertColumnExists(String keyspace, String cf, String key, String column) {
    ColumnPath cp = new ColumnPath(cf);
    cp.setColumn(StringUtils.bytes(column));
    Keyspace ks = HFactory.createKeyspace(keyspace, cluster);
    ColumnQuery<String, String, String> columnQuery = HFactory.createStringColumnQuery(ks);
    assertNotNull(String.format("Should have value for %s.%s[%s][%s]", keyspace, cf, key, column),
        columnQuery.setColumnFamily(cf).setKey(key).setName(column).execute().get().getValue());
        //client.getKeyspace(keyspace).getColumn(key, cp));

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  @Test
  public void testInsertAndGetAndRemove() throws IllegalArgumentException, NoSuchElementException,
  IllegalStateException, HNotFoundException, Exception {


    // insert value
    ColumnPath cp = new ColumnPath("Standard1");
    cp.setColumn(bytes("testInsertAndGetAndRemove"));
    for (int i = 0; i < 100; i++) {
      keyspace.insert("testInsertAndGetAndRemove_" + i, cp,
          StringSerializer.get().toByteBuffer("testInsertAndGetAndRemove_value_" + i));
    }

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    keyspace.insert(StringSerializer.get().toByteBuffer("testInsertSuper_key"), columnParent, column);
    column.setName(StringSerializer.get().toByteBuffer("testInsertSuper_column2"));
    keyspace.insert(StringSerializer.get().toByteBuffer("testInsertSuper_key"), columnParent, column);


    // get value and assert
    ColumnPath cp2 = new ColumnPath("Super1");
    cp2.setSuper_column(bytes("testInsertSuper_super"));
    SuperColumn sc = keyspace.getSuperColumn("testInsertSuper_key", cp2);
    assertNotNull(sc);
    assertEquals("testInsertSuper_super", string(sc.getName()));
    assertEquals(2, sc.getColumns().size());
    assertEquals("testInsertSuper_value", string(sc.getColumns().get(0).getValue()));

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    outerMutationMap.clear();


    // get value
    for (int i = 0; i < 10; i++) {
      for (int j = 0; j < 10; j++) {
        ColumnPath cp = new ColumnPath("Standard1");
        cp.setColumn(bytes("testBatchMutateColumn_" + j));


        Column col = keyspace.getColumn("testBatchMutateColumn_" + i, cp);
        assertNotNull(col);
        String value = string(col.getValue());
        assertEquals("testBatchMutateColumn_value_" + j, value);


      }
    }


    // batch_mutate delete by key
    for (int i = 0; i < 10; i++) {
      ArrayList<Mutation> mutations = new ArrayList<Mutation>(10);
      Map<String, List<Mutation>> mutationMap = new HashMap<String, List<Mutation>>();
      SlicePredicate slicePredicate = new SlicePredicate();
      for (int j = 0; j < 10; j++) {
        slicePredicate.addToColumn_names(StringSerializer.get().toByteBuffer("testBatchMutateColumn_" + j));
      }
      Mutation mutation = new Mutation();
      Deletion deletion = new Deletion(connectionManager.createClock());
      deletion.setPredicate(slicePredicate);
      mutation.setDeletion(deletion);
      mutations.add(mutation);


      mutationMap.put("Standard1", mutations);
      outerMutationMap.put("testBatchMutateColumn_"+i, mutationMap);
    }
    keyspace.batchMutate(se.toBytesMap(outerMutationMap));
    // make sure the values are gone
    for (int i = 0; i < 10; i++) {
      for (int j = 0; j < 10; j++) {
        ColumnPath cp = new ColumnPath("Standard1");
        cp.setColumn(bytes("testBatchMutateColumn_" + j));
        try {
          keyspace.getColumn("testBatchMutateColumn_" + i, cp);
          fail();
        } catch (HNotFoundException e) {
        }

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    keyspace.batchMutate(batchMutation);


    // get value
    for (int i = 0; i < 10; i++) {
      for (int j = 0; j < 10; j++) {
        ColumnPath cp = new ColumnPath("Standard1");
        cp.setColumn(bytes("testBatchMutateColumn_" + j));


        Column col = keyspace.getColumn("testBatchMutateColumn_" + i, cp);
        assertNotNull(col);
        String value = string(col.getValue());
        assertEquals("testBatchMutateColumn_value_" + j, value);


      }
    }
    batchMutation = new BatchMutation<String>(StringSerializer.get());
    // batch_mutate delete by key
    for (int i = 0; i < 10; i++) {
      SlicePredicate slicePredicate = new SlicePredicate();
      for (int j = 0; j < 10; j++) {
        slicePredicate.addToColumn_names(StringSerializer.get().toByteBuffer("testBatchMutateColumn_" + j));
      }
      Deletion deletion = new Deletion(connectionManager.createClock());
      deletion.setPredicate(slicePredicate);
      batchMutation.addDeletion("testBatchMutateColumn_" + i, columnFamilies, deletion);
    }
    keyspace.batchMutate(batchMutation);
    // make sure the values are gone
    for (int i = 0; i < 10; i++) {
      for (int j = 0; j < 10; j++) {
        ColumnPath cp = new ColumnPath("Standard1");
        cp.setColumn(bytes("testBatchMutateColumn_" + j));
        try {
          keyspace.getColumn("testBatchMutateColumn_" + i, cp);
          fail();
        } catch (HNotFoundException e) {
          // good, we want this to throw.

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  }


  @Test
  public void testBatchUpdateInsertAndDelOnSame() throws HectorException {


    ColumnPath sta1 = new ColumnPath("Standard1");
    sta1.setColumn(bytes("deleteThroughInserBatch_col"));


    keyspace.insert("deleteThroughInserBatch_key", sta1, StringSerializer.get().toByteBuffer("deleteThroughInserBatch_val"));


    Column found = keyspace.getColumn("deleteThroughInserBatch_key", sta1);
    assertNotNull(found);


    BatchMutation<String> batchMutation = new BatchMutation<String>(StringSerializer.get());
    List<String> columnFamilies = Arrays.asList("Standard1");
    for (int i = 0; i < 10; i++) {


      for (int j = 0; j < 10; j++) {
        Column col = new Column(StringSerializer.get().toByteBuffer("testBatchMutateColumn_" + j),
            StringSerializer.get().toByteBuffer("testBatchMutateColumn_value_" + j), connectionManager.createClock());
        batchMutation.addInsertion("testBatchMutateColumn_" + i, columnFamilies, col);
      }
    }
    SlicePredicate slicePredicate = new SlicePredicate();
    slicePredicate.addToColumn_names(StringSerializer.get().toByteBuffer("deleteThroughInserBatch_col"));


    Deletion deletion = new Deletion(connectionManager.createClock());
    deletion.setPredicate(slicePredicate);


    batchMutation.addDeletion("deleteThroughInserBatch_key", columnFamilies, deletion);
    keyspace.batchMutate(batchMutation);
    try {
      keyspace.getColumn("deleteThroughInserBatch_key", sta1);
      fail("Should not have found a value here");
    } catch (Exception e) {
    }
    // get value
    for (int i = 0; i < 10; i++) {
      for (int j = 0; j < 10; j++) {
        ColumnPath cp = new ColumnPath("Standard1");
        cp.setColumn(bytes("testBatchMutateColumn_" + j));


        Column col = keyspace.getColumn("testBatchMutateColumn_" + i, cp);
        assertNotNull(col);
        String value = string(col.getValue());
        assertEquals("testBatchMutateColumn_value_" + j, value);

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  @Test
  public void testGetSlice() throws HectorException {
    // insert value
    ArrayList<String> columnnames = new ArrayList<String>(100);
    for (int i = 0; i < 100; i++) {
      ColumnPath cp = new ColumnPath("Standard2");
      cp.setColumn(bytes("testGetSlice_" + i));
      keyspace.insert("testGetSlice", cp, StringSerializer.get().toByteBuffer("testGetSlice_Value_" + i));
      columnnames.add("testGetSlice_" + i);
    }


    // get value
    ColumnParent clp = new ColumnParent("Standard2");
    SliceRange sr = new SliceRange(ByteBuffer.wrap(new byte[0]), ByteBuffer.wrap(new byte[0]), false, 150);
    SlicePredicate sp = new SlicePredicate();
    sp.setSlice_range(sr);
    List<Column> cols = keyspace.getSlice("testGetSlice", clp, sp);


    assertNotNull(cols);
    assertEquals(100, cols.size());


    Collections.sort(columnnames);
    ArrayList<String> gotlist = new ArrayList<String>(100);
    for (int i = 0; i < 100; i++) {
      gotlist.add(string(cols.get(i).getName()));
    }
    assertEquals(columnnames, gotlist);


    ColumnPath cp = new ColumnPath("Standard2");
    keyspace.remove("testGetSlice_", cp);
    keyspace.remove("testGetSlice", cp);
  }

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  @Test
  public void testGetSuperSlice() throws HectorException {
    // insert value
    for (int i = 0; i < 100; i++) {
      ColumnPath cp = new ColumnPath("Super1");


      cp.setSuper_column(bytes("SuperColumn_1"));
      cp.setColumn(bytes("testGetSuperSlice_"+ i));


      ColumnPath cp2 = new ColumnPath("Super1");


      cp2.setSuper_column(bytes("SuperColumn_2"));
      cp2.setColumn(bytes("testGetSuperSlice_" + i));


      keyspace.insert("testGetSuperSlice", cp, StringSerializer.get().toByteBuffer("testGetSuperSlice_Value_" + i));
      keyspace.insert("testGetSuperSlice", cp2, StringSerializer.get().toByteBuffer("testGetSuperSlice_Value_" + i));
    }


    // get value
    ColumnParent clp = new ColumnParent("Super1");
    SliceRange sr = new SliceRange(ByteBuffer.wrap(new byte[0]), ByteBuffer.wrap(new byte[0]), false, 150);
    SlicePredicate sp = new SlicePredicate();
    sp.setSlice_range(sr);
    List<SuperColumn> cols = keyspace.getSuperSlice("testGetSuperSlice", clp, sp);


    assertNotNull(cols);
    assertEquals(2, cols.size());


    ColumnPath cp = new ColumnPath("Super1");
    keyspace.remove("testGetSuperSlice", cp);
  }

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  }


  @Test
  public void testMultigetColumn() throws HectorException {
    // insert value
    ColumnPath cp = new ColumnPath("Standard1");
    cp.setColumn(bytes("testMultigetColumn"));
    ArrayList<String> keys = new ArrayList<String>(100);
    for (int i = 0; i < 100; i++) {
      keyspace.insert("testMultigetColumn_" + i, cp, StringSerializer.get().toByteBuffer("testMultigetColumn_value_" + i));
      keys.add("testMultigetColumn_" + i);
    }

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