Examples of org.apache.accumulo.core.client.mock.MockInstance

Package org.apache.accumulo.core.client.mock

Examples of org.apache.accumulo.core.client.mock.MockInstance

org.apache.accumulo.core.client.mock.MockInstance
Mock Accumulo provides an in memory implementation of the Accumulo client API. It is possible that the behavior of this implementation may differ subtly from the behavior of Accumulo. This could result in unit tests that pass on Mock Accumulo and fail on Accumulo or visa-versa. Documenting the differences would be difficult and is not done.
An alternative to Mock Accumulo called MiniAccumuloCluster was introduced in Accumulo 1.5. MiniAccumuloCluster spins up actual Accumulo server processes, can be used for unit testing, and its behavior should match Accumulo. The drawback of MiniAccumuloCluster is that it starts more slowly than Mock Accumulo.

    assertEquals(new HashSet<String>(Arrays.asList("0", "1", "2", "3", "4")), getRows(scanner));
  }


  @Test
  public void testFilterConjunction() throws Exception {
    MockInstance instance = new MockInstance("rft1");
    Connector conn = instance.getConnector("", new PasswordToken(""));


    conn.tableOperations().create("filter_conjunction");
    BatchWriter bw = conn.createBatchWriter("filter_conjunction", new BatchWriterConfig());
    for (Mutation m : createMutations()) {
      bw.addMutation(m);

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    bw.close();
  }


  @Test
  public void test() throws Exception {
    Instance instance = new MockInstance();
    Connector connector = instance.getConnector("root", new PasswordToken(""));
    BatchWriter bw = connector.createBatchWriter(MetadataTable.NAME, new BatchWriterConfig());


    // Create a fake METADATA table with these splits
    String splits[] = {"a", "e", "j", "o", "t", "z"};
    // create metadata for a table "t" with the splits above

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   * @see #setMockInstance(Class, Configuration, String)
   */
  public static Instance getInstance(Class<?> implementingClass, Configuration conf) {
    String instanceType = conf.get(enumToConfKey(implementingClass, InstanceOpts.TYPE), "");
    if ("MockInstance".equals(instanceType))
      return new MockInstance(conf.get(enumToConfKey(implementingClass, InstanceOpts.NAME)));
    else if ("ZooKeeperInstance".equals(instanceType)) {
      String clientConfigString = conf.get(enumToConfKey(implementingClass, InstanceOpts.CLIENT_CONFIG));
      if (clientConfigString == null) {
        String instanceName = conf.get(enumToConfKey(implementingClass, InstanceOpts.NAME));
        String zookeepers = conf.get(enumToConfKey(implementingClass, InstanceOpts.ZOO_KEEPERS));

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          credentials = new TCredentials(user, 
              "org.apache.accumulo.core.client.security.tokens.PasswordToken", 
              ByteBuffer.wrap(password.getBytes()), instance);
          conn = new ZooKeeperInstance(instance, zookeepers).getConnector(user, token);
        } else {
          conn = new MockInstance().getConnector(user, new PasswordToken(password));
          credentials = new TCredentials(user, 
              "org.apache.accumulo.core.client.security.tokens.PasswordToken", 
              ByteBuffer.wrap(password.getBytes()), conn.getInstance().getInstanceID());
        }

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  public ProxyServer(Properties props) {
    
    String useMock = props.getProperty("useMockInstance");
    if (useMock != null && Boolean.parseBoolean(useMock))
      instance = new MockInstance();
    else
      instance = new ZooKeeperInstance(props.getProperty("instance"), props.getProperty("zookeepers"));
    
    scannerCache = CacheBuilder.newBuilder().expireAfterAccess(10, TimeUnit.MINUTES).maximumSize(1000).removalListener(new CloseScanner()).build();

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   * @see #setZooKeeperInstance(Configuration, String, String)
   * @see #setMockInstance(Configuration, String)
   */
  protected static Instance getInstance(Configuration conf) {
    if (conf.getBoolean(MOCK, false))
      return new MockInstance(conf.get(INSTANCE_NAME));
    return new ZooKeeperInstance(conf.get(INSTANCE_NAME), conf.get(ZOOKEEPERS));
  }

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    }
  }
  
  @Test
  public void testMap() throws Exception {
    MockInstance mockInstance = new MockInstance("testmapinstance");
    Connector c = mockInstance.getConnector("root", new byte[] {});
    c.tableOperations().create("testtable");
    BatchWriter bw = c.createBatchWriter("testtable", 10000L, 1000L, 4);
    for (int i = 0; i < 100; i++) {
      Mutation m = new Mutation(new Text(String.format("%09x", i + 1)));
      m.put(new Text(), new Text(), new Value(String.format("%09x", i).getBytes()));

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    }
  }
  
  @Test
  public void testSimple() throws Exception {
    MockInstance mockInstance = new MockInstance("testmapinstance");
    Connector c = mockInstance.getConnector("root", new byte[] {});
    c.tableOperations().create("testtable2");
    BatchWriter bw = c.createBatchWriter("testtable2", 10000L, 1000L, 4);
    for (int i = 0; i < 100; i++) {
      Mutation m = new Mutation(new Text(String.format("%09x", i + 1)));
      m.put(new Text(), new Text(), new Value(String.format("%09x", i).getBytes()));

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  }
  
  @SuppressWarnings("deprecation")
  @Test
  public void testRegex() throws Exception {
    MockInstance mockInstance = new MockInstance("testmapinstance");
    Connector c = mockInstance.getConnector("root", new byte[] {});
    c.tableOperations().create("testtable3");
    BatchWriter bw = c.createBatchWriter("testtable3", 10000L, 1000L, 4);
    for (int i = 0; i < 100; i++) {
      Mutation m = new Mutation(new Text(String.format("%09x", i + 1)));
      m.put(new Text(), new Text(), new Value(String.format("%09x", i).getBytes()));

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  }
  
  protected static Instance getInstance(JobContext job) {
    Configuration conf = job.getConfiguration();
    if (conf.getBoolean(MOCK, false))
      return new MockInstance(conf.get(INSTANCE_NAME));
    return new ZooKeeperInstance(conf.get(INSTANCE_NAME), conf.get(ZOOKEEPERS));
  }

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