com.couchbase.client.java.Bucket Java Examples

@Test
public void testInputFlowFileContent() throws Exception {

    Bucket bucket = mock(Bucket.class);
    String inFileDataStr = "doc-in";
    String content = "{\"key\":\"value\"}";
    when(bucket.get(inFileDataStr, RawJsonDocument.class))
        .thenReturn(RawJsonDocument.create(inFileDataStr, content));
    setupMockBucket(bucket);


    byte[] inFileData = inFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 1);
    testRunner.assertTransferCount(REL_ORIGINAL, 1);
    testRunner.assertTransferCount(REL_RETRY, 0);
    testRunner.assertTransferCount(REL_FAILURE, 0);
    MockFlowFile outFile = testRunner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
    outFile.assertContentEquals(content);
    MockFlowFile orgFile = testRunner.getFlowFilesForRelationship(REL_ORIGINAL).get(0);
    orgFile.assertContentEquals(inFileDataStr);
}
 

@Test
public void testCouchbaseTempClusterError() throws Exception {
    String docIdExp = "doc-c";

    Bucket bucket = mock(Bucket.class);
    CouchbaseException exception = new BackpressureException();
    when(bucket.get(docIdExp, RawJsonDocument.class))
        .thenThrow(exception);
    setupMockBucket(bucket);

    testRunner.setProperty(DOC_ID, docIdExp);

    String inputFileDataStr = "input FlowFile data";
    byte[] inFileData = inputFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 0);
    testRunner.assertTransferCount(REL_ORIGINAL, 0);
    testRunner.assertTransferCount(REL_RETRY, 1);
    testRunner.assertTransferCount(REL_FAILURE, 0);
    MockFlowFile orgFile = testRunner.getFlowFilesForRelationship(REL_RETRY).get(0);
    orgFile.assertContentEquals(inputFileDataStr);
    orgFile.assertAttributeEquals(Exception.key(), exception.getClass().getName());
}
 

@Test
public void testDocumentNotFound() throws Exception {
    String docIdExp = "doc-n";

    Bucket bucket = mock(Bucket.class);
    when(bucket.get(docIdExp, RawJsonDocument.class))
        .thenReturn(null);
    setupMockBucket(bucket);

    testRunner.setProperty(DOC_ID, docIdExp);

    String inputFileDataStr = "input FlowFile data";
    byte[] inFileData = inputFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 0);
    testRunner.assertTransferCount(REL_ORIGINAL, 0);
    testRunner.assertTransferCount(REL_RETRY, 0);
    testRunner.assertTransferCount(REL_FAILURE, 1);
    MockFlowFile orgFile = testRunner.getFlowFilesForRelationship(REL_FAILURE).get(0);
    orgFile.assertContentEquals(inputFileDataStr);
    orgFile.assertAttributeEquals(Exception.key(), DocumentDoesNotExistException.class.getName());
}
 

@Test
public void testBinaryDocument() throws Exception {

    Bucket bucket = mock(Bucket.class);
    String inFileDataStr = "doc-in";
    String content = "binary";
    ByteBuf buf = Unpooled.copiedBuffer(content.getBytes(StandardCharsets.UTF_8));
    when(bucket.get(inFileDataStr, BinaryDocument.class))
        .thenReturn(BinaryDocument.create(inFileDataStr, buf));
    setupMockBucket(bucket);


    byte[] inFileData = inFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.setProperty(DOCUMENT_TYPE, DocumentType.Binary.toString());
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 1);
    testRunner.assertTransferCount(REL_ORIGINAL, 1);
    testRunner.assertTransferCount(REL_RETRY, 0);
    testRunner.assertTransferCount(REL_FAILURE, 0);
    MockFlowFile outFile = testRunner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
    outFile.assertContentEquals(content);
    MockFlowFile orgFile = testRunner.getFlowFilesForRelationship(REL_ORIGINAL).get(0);
    orgFile.assertContentEquals(inFileDataStr);
}
 

@Test
public void testInputFlowFileContent() throws Exception {

    Bucket bucket = mock(Bucket.class);
    String inFileDataStr = "doc-in";
    String content = "{\"key\":\"value\"}";
    when(bucket.get(inFileDataStr, RawJsonDocument.class))
        .thenReturn(RawJsonDocument.create(inFileDataStr, content));
    setupMockBucket(bucket);


    byte[] inFileData = inFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 1);
    testRunner.assertTransferCount(REL_ORIGINAL, 1);
    testRunner.assertTransferCount(REL_RETRY, 0);
    testRunner.assertTransferCount(REL_FAILURE, 0);
    MockFlowFile outFile = testRunner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
    outFile.assertContentEquals(content);
    MockFlowFile orgFile = testRunner.getFlowFilesForRelationship(REL_ORIGINAL).get(0);
    orgFile.assertContentEquals(inFileDataStr);
}
 

/**
 * This unit test uses CouchbaseBucketRegistry to register two mocked buckets with same name but in different clusters.
 * Calling registry.getBucket with same bucketName but different clusterNodes should return different Bucket instances.
 */
@Test
public void testOpenSameBucketNameFromDifferentClusters() {
  String bucketName = "bucket";
  List<String> clusterNodes1 = Arrays.asList("cluster1");
  List<String> clusterNodes2 = Arrays.asList("cluster2");
  CouchbaseEnvironmentConfigs configs = new CouchbaseEnvironmentConfigs();
  CouchbaseCluster cluster1 = mock(CouchbaseCluster.class);
  CouchbaseCluster cluster2 = mock(CouchbaseCluster.class);
  when(cluster1.openBucket(bucketName)).thenReturn(mock(Bucket.class));
  when(cluster2.openBucket(bucketName)).thenReturn(mock(Bucket.class));
  mockStatic(CouchbaseCluster.class);
  when(CouchbaseCluster.create(any(CouchbaseEnvironment.class), eq(clusterNodes1))).thenReturn(cluster1);
  when(CouchbaseCluster.create(any(CouchbaseEnvironment.class), eq(clusterNodes2))).thenReturn(cluster2);
  CouchbaseBucketRegistry registry = new CouchbaseBucketRegistry();
  Bucket bucketInCluster1 = registry.getBucket(bucketName, clusterNodes1, configs);
  Bucket bucketInCluster2 = registry.getBucket(bucketName, clusterNodes2, configs);
  assertNotEquals(bucketInCluster1, bucketInCluster2);
}
 

/**
 * This unit test simulates 10 tasks using the same bucket. Each task will call registry.getBucket once. Then
 * each task will also call registry.closeBucket once. After that, registry.closeBucket should return false if we
 * close the bucket one more time. And the bucket should have already been closed.
 */
@Test
public void testCloseBucket() {
  String bucketName = "bucket";
  List<String> clusterNodes = Arrays.asList("cluster");
  CouchbaseEnvironmentConfigs configs = new CouchbaseEnvironmentConfigs();
  CouchbaseCluster cluster = mock(CouchbaseCluster.class);
  Bucket bucket = mock(Bucket.class);
  when(bucket.close()).thenReturn(true).thenReturn(false);
  when(cluster.openBucket(bucketName)).thenReturn(bucket);
  when(cluster.disconnect()).thenReturn(true).thenReturn(false);
  mockStatic(CouchbaseCluster.class);
  when(CouchbaseCluster.create(any(CouchbaseEnvironment.class), eq(clusterNodes))).thenReturn(cluster);
  CouchbaseBucketRegistry registry = new CouchbaseBucketRegistry();
  int numOfThreads = 10;
  for (int i = 0; i < numOfThreads; i++) {
    registry.getBucket(bucketName, clusterNodes, configs);
  }
  for (int i = 0; i < numOfThreads; i++) {
    assertTrue(registry.closeBucket(bucketName, clusterNodes));
  }
  // Close one more time. Should return false.
  assertFalse(registry.closeBucket(bucketName, clusterNodes));
  // Bucket should has been closed
  assertFalse(bucket.close());
}
 

@Test
public void givenSelectStatementWithDSL2_whenQuery_thenResult() {
    Bucket bucket = bucketFactory.getTravelSampleBucket();
    Statement st2 = select(
            x("t.city, t.airportname")
                    .concat(s(" (")).concat(x("t.faa")).concat(s(")")).as("portname_faa"))
            .from(i("travel-sample").as("t"))
            .where( x("t.type").eq(s("airport"))
                    .and(x("t.country").like(s("%States")))
                    .and(x("t.geo.lat").gte(70)))
            .limit(2);
    N1qlQueryResult r5 = bucket.query(N1qlQuery.simple(st2));
    List<JsonNode> list5 = extractJsonResult(r5);
    System.out.println("First Doc : " + list5.get(0));
    System.out.println("Query from Statement2: " + st2.toString());
}
 

@Test
public void testDocIdExp() throws Exception {
    String docIdExp = "${'someProperty'}";
    String somePropertyValue = "doc-p";

    Bucket bucket = mock(Bucket.class);
    String content = "{\"key\":\"value\"}";
    when(bucket.get(somePropertyValue, RawJsonDocument.class))
        .thenReturn(RawJsonDocument.create(somePropertyValue, content));
    setupMockBucket(bucket);

    testRunner.setProperty(DOC_ID, docIdExp);

    byte[] inFileData = "input FlowFile data".getBytes(StandardCharsets.UTF_8);
    Map<String, String> properties = new HashMap<>();
    properties.put("someProperty", somePropertyValue);
    testRunner.enqueue(inFileData, properties);
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 1);
    testRunner.assertTransferCount(REL_ORIGINAL, 1);
    testRunner.assertTransferCount(REL_RETRY, 0);
    testRunner.assertTransferCount(REL_FAILURE, 0);
    MockFlowFile outFile = testRunner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
    outFile.assertContentEquals(content);
}
 

@Test
public void testCouchbaseInvalidInputError() throws Exception {
    String docIdExp = "doc-c";

    Bucket bucket = mock(Bucket.class);
    CouchbaseException exception = new RequestTooBigException();
    when(bucket.get(docIdExp, RawJsonDocument.class))
        .thenThrow(exception);
    setupMockBucket(bucket);

    testRunner.setProperty(DOC_ID, docIdExp);

    String inputFileDataStr = "input FlowFile data";
    byte[] inFileData = inputFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 0);
    testRunner.assertTransferCount(REL_ORIGINAL, 0);
    testRunner.assertTransferCount(REL_RETRY, 0);
    testRunner.assertTransferCount(REL_FAILURE, 1);
    MockFlowFile orgFile = testRunner.getFlowFilesForRelationship(REL_FAILURE).get(0);
    orgFile.assertContentEquals(inputFileDataStr);
    orgFile.assertAttributeEquals(Exception.key(), exception.getClass().getName());
}
 

private void populateBucket() {
    CouchbaseEnvironment env = DefaultCouchbaseEnvironment
            .builder()
            .socketConnectTimeout(60000)
            .connectTimeout(60000)
            .keepAliveInterval(60000)
            .keyValueServiceConfig(KeyValueServiceConfig.create(60)) // If skip this config, we may get TimeoutException https://forums.couchbase.com/t/kv-upsert-throwing-timeoutexception-couchbase-4-5/9399
            .build();
    CouchbaseCluster cluster = CouchbaseCluster.create(env, bootstrapNodes);
    Bucket bucket = cluster.openBucket(bucketName, password);
    LOGGER.info("Connected to bucket - " + bucketName);
    assertTrue(bucket.bucketManager().flush());
    JsonDocument document = JsonDocument.create("foo", JsonObject.create().put("bar", 42));
    bucket.upsert(document, PersistTo.MASTER);
    bucket.close();
    LOGGER.info("Bucket is closed after upserting data");
    if (cluster != null) {
        cluster.disconnect();
    }
}
 

@Test
public void testBinaryDocumentToAttribute() throws Exception {

    Bucket bucket = mock(Bucket.class);
    String inFileDataStr = "doc-in";
    String content = "binary";
    ByteBuf buf = Unpooled.copiedBuffer(content.getBytes(StandardCharsets.UTF_8));
    when(bucket.get(inFileDataStr, BinaryDocument.class))
        .thenReturn(BinaryDocument.create(inFileDataStr, buf));
    setupMockBucket(bucket);

    byte[] inFileData = inFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.setProperty(DOCUMENT_TYPE, DocumentType.Binary.toString());
    testRunner.setProperty(PUT_VALUE_TO_ATTRIBUTE, "targetAttribute");
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 1);
    testRunner.assertTransferCount(REL_ORIGINAL, 0);
    testRunner.assertTransferCount(REL_RETRY, 0);
    testRunner.assertTransferCount(REL_FAILURE, 0);
    MockFlowFile outFile = testRunner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
    outFile.assertContentEquals(inFileDataStr);
    outFile.assertAttributeEquals("targetAttribute", "binary");
}
 

@Test
public void testCouchbaseTempClusterError() throws Exception {
    String docIdExp = "doc-c";

    Bucket bucket = mock(Bucket.class);
    CouchbaseException exception = new BackpressureException();
    when(bucket.get(docIdExp, RawJsonDocument.class))
        .thenThrow(exception);
    setupMockBucket(bucket);

    testRunner.setProperty(DOC_ID, docIdExp);

    String inputFileDataStr = "input FlowFile data";
    byte[] inFileData = inputFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 0);
    testRunner.assertTransferCount(REL_ORIGINAL, 0);
    testRunner.assertTransferCount(REL_RETRY, 1);
    testRunner.assertTransferCount(REL_FAILURE, 0);
    MockFlowFile orgFile = testRunner.getFlowFilesForRelationship(REL_RETRY).get(0);
    orgFile.assertContentEquals(inputFileDataStr);
    orgFile.assertAttributeEquals(Exception.key(), exception.getClass().getName());
}
 

@Test
public void testCouchbaseTempFlowFileError() throws Exception {
    String docIdExp = "doc-c";

    Bucket bucket = mock(Bucket.class);
    // There is no suitable CouchbaseException for temp flowfile error, currently.
    CouchbaseException exception = new DurabilityException();
    when(bucket.get(docIdExp, RawJsonDocument.class))
        .thenThrow(exception);
    setupMockBucket(bucket);

    testRunner.setProperty(DOC_ID, docIdExp);

    String inputFileDataStr = "input FlowFile data";
    byte[] inFileData = inputFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 0);
    testRunner.assertTransferCount(REL_ORIGINAL, 0);
    testRunner.assertTransferCount(REL_RETRY, 1);
    testRunner.assertTransferCount(REL_FAILURE, 0);
    MockFlowFile orgFile = testRunner.getFlowFilesForRelationship(REL_RETRY).get(0);
    orgFile.assertContentEquals(inputFileDataStr);
    orgFile.assertAttributeEquals(Exception.key(), exception.getClass().getName());
}
 

@Test
public void testCouchbaseFatalError() throws Exception {
    String docIdExp = "doc-c";

    Bucket bucket = mock(Bucket.class);
    CouchbaseException exception = new NotConnectedException();
    when(bucket.get(docIdExp, RawJsonDocument.class))
        .thenThrow(exception);
    setupMockBucket(bucket);

    testRunner.setProperty(DOC_ID, docIdExp);

    String inputFileDataStr = "input FlowFile data";
    byte[] inFileData = inputFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 0);
    testRunner.assertTransferCount(REL_ORIGINAL, 0);
    testRunner.assertTransferCount(REL_RETRY, 1);
    testRunner.assertTransferCount(REL_FAILURE, 0);
    MockFlowFile orgFile = testRunner.getFlowFilesForRelationship(REL_RETRY).get(0);
    orgFile.assertContentEquals(inputFileDataStr);
    orgFile.assertAttributeEquals(Exception.key(), exception.getClass().getName());
}
 

@Test
public void testBinaryDocument() throws Exception {

    Bucket bucket = mock(Bucket.class);
    String inFileDataStr = "doc-in";
    String content = "binary";
    ByteBuf buf = Unpooled.copiedBuffer(content.getBytes(StandardCharsets.UTF_8));
    when(bucket.get(inFileDataStr, BinaryDocument.class))
        .thenReturn(BinaryDocument.create(inFileDataStr, buf));
    setupMockBucket(bucket);


    byte[] inFileData = inFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.setProperty(DOCUMENT_TYPE, DocumentType.Binary.toString());
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 1);
    testRunner.assertTransferCount(REL_ORIGINAL, 1);
    testRunner.assertTransferCount(REL_RETRY, 0);
    testRunner.assertTransferCount(REL_FAILURE, 0);
    MockFlowFile outFile = testRunner.getFlowFilesForRelationship(REL_SUCCESS).get(0);
    outFile.assertContentEquals(content);
    MockFlowFile orgFile = testRunner.getFlowFilesForRelationship(REL_ORIGINAL).get(0);
    orgFile.assertContentEquals(inFileDataStr);
}
 

@Test
public void testDocIdExpWithInvalidExpression() throws Exception {
    String docIdExp = "${nonExistingFunction('doc-s')}";
    String docId = "doc-s";

    Bucket bucket = mock(Bucket.class);
    String content = "{\"key\":\"value\"}";
    when(bucket.get(docId, RawJsonDocument.class))
        .thenReturn(RawJsonDocument.create(docId, content));
    setupMockBucket(bucket);

    testRunner.setProperty(DOC_ID, docIdExp);
    testRunner.enqueue(new byte[0]);

    try {
        testRunner.run();
        fail("Exception should be thrown.");
    } catch (AssertionError e) {
        Assert.assertTrue(e.getCause().getClass().equals(AttributeExpressionLanguageException.class));
    }

    testRunner.assertTransferCount(REL_SUCCESS, 0);
    testRunner.assertTransferCount(REL_ORIGINAL, 0);
    testRunner.assertTransferCount(REL_RETRY, 0);
    testRunner.assertTransferCount(REL_FAILURE, 0);
}
 

@Test
public void givenDocuments_whenBatchInsert_thenResult() {
    Bucket bucket = bucketFactory.getTravelSampleBucket();

    List<JsonDocument> documents = IntStream.rangeClosed(0,10)
      .mapToObj( i -> {
        JsonObject content = JsonObject.create()
          .put("id", i)
          .put("type", "airline")
          .put("name", "Sample Airline "  + i);
        return JsonDocument.create("cust_" + i, content);
      })
      .collect(Collectors.toList());

    List<JsonDocument> r5 = Observable
      .from(documents)
      .flatMap(doc -> bucket.async().insert(doc))
      .toList()
      .last()
      .toBlocking()
      .single();

    r5.forEach(System.out::println);
}
 

@Test
public void givenUpdateStatement_whenQuery_thenUpdate() {
    Bucket bucket = bucketFactory.getTravelSampleBucket();
    String query2 = "UPDATE `travel-sample` USE KEYS \"cust_1\" " +
            "SET name=\"Sample Airline Updated\" RETURNING name";
    N1qlQueryResult result = bucket.query(N1qlQuery.simple(query2));
    result.forEach(System.out::println);
}
 

@Test
public void testCouchbaseTempFlowFileError() throws Exception {
    String docIdExp = "doc-c";

    Bucket bucket = mock(Bucket.class);
    // There is no suitable CouchbaseException for temp flowfile error, currently.
    CouchbaseException exception = new DurabilityException();
    when(bucket.get(docIdExp, RawJsonDocument.class))
        .thenThrow(exception);
    setupMockBucket(bucket);

    testRunner.setProperty(DOC_ID, docIdExp);

    String inputFileDataStr = "input FlowFile data";
    byte[] inFileData = inputFileDataStr.getBytes(StandardCharsets.UTF_8);
    testRunner.enqueue(inFileData);
    testRunner.run();

    testRunner.assertTransferCount(REL_SUCCESS, 0);
    testRunner.assertTransferCount(REL_ORIGINAL, 0);
    testRunner.assertTransferCount(REL_RETRY, 1);
    testRunner.assertTransferCount(REL_FAILURE, 0);
    MockFlowFile orgFile = testRunner.getFlowFilesForRelationship(REL_RETRY).get(0);
    orgFile.assertContentEquals(inputFileDataStr);
    orgFile.assertAttributeEquals(Exception.key(), exception.getClass().getName());
    Assert.assertEquals(true, orgFile.isPenalized());
}
 

/**
 * A convenient method to retrieve String value when Document type is unknown.
 * This method uses LegacyDocument to get, then tries to convert content based on its class.
 * @param bucket the bucket to get a document
 * @param id the id of the target document
 * @return String representation of the stored value, or null if not found
 */
public static String getStringContent(Bucket bucket, String id) {
    final LegacyDocument doc = bucket.get(LegacyDocument.create(id));
    if (doc == null) {
        return null;
    }
    final Object content = doc.content();
    return getStringContent(content);
}
 

private void setupMockBucket(Bucket bucket) throws InitializationException {
    CouchbaseClusterControllerService service = mock(CouchbaseClusterControllerService.class);
    when(service.getIdentifier()).thenReturn(SERVICE_ID);
    when(service.openBucket(anyString())).thenReturn(bucket);
    when(bucket.name()).thenReturn("bucket-1");
    testRunner.addControllerService(SERVICE_ID, service);
    testRunner.enableControllerService(service);
    testRunner.setProperty(COUCHBASE_CLUSTER_SERVICE, SERVICE_ID);
}
 

@Test
public void testPutAsyncException() {
  String key = "throwExceptionKey";
  JsonObject value = JsonObject.create();
  Bucket bucket = mock(Bucket.class);
  AsyncBucket asyncBucket = mock(AsyncBucket.class);
  CouchbaseTableWriteFunction<JsonObject> writeFunction = createAndInit(bucket, asyncBucket);
  when(asyncBucket.upsert(any(Document.class), anyLong(), any(TimeUnit.class))).thenReturn(
      Observable.error(new CouchbaseException()));
  assertTrue(writeFunction.putAsync(key, value).isCompletedExceptionally());
}
 

@Test
public void testGetAsyncStringValue() throws Exception {
  String key = "key";
  String value = "value";
  StringSerde stringSerde = new StringSerde();
  Bucket bucket = mock(Bucket.class);
  AsyncBucket asyncBucket = mock(AsyncBucket.class);
  CouchbaseTableReadFunction readFunction = createAndInit(String.class, stringSerde, bucket, asyncBucket);
  when(asyncBucket.get(eq(key), anyObject(), anyLong(), any(TimeUnit.class))).thenReturn(
      Observable.just(BinaryDocument.create(key, Unpooled.wrappedBuffer(stringSerde.toBytes(value)))));
  assertEquals(value, readFunction.getAsync(key).get());
}
 

static JsonDocument getFirstFromReplicaExample(Bucket bucket, String id) {
    try {
        return bucket.get(id);
    } catch (CouchbaseException e) {
        List<JsonDocument> list = bucket.getFromReplica(id, ReplicaMode.FIRST);
        if (!list.isEmpty()) {
            return list.get(0);
        }
    }
    return null;
}
 

@Test
public void testGetAsyncFailedToDeserialize() {
  String key = "key";
  Bucket bucket = mock(Bucket.class);
  AsyncBucket asyncBucket = mock(AsyncBucket.class);
  CouchbaseTableReadFunction readFunction = createAndInit(String.class, new StringSerde(), bucket, asyncBucket);
  when(asyncBucket.get(eq(key), anyObject(), anyLong(), any(TimeUnit.class))).thenReturn(
      Observable.just(BinaryDocument.create(key, null)));
  assertTrue(readFunction.getAsync(key).isCompletedExceptionally());
}
 

@Test
public void testGetAsyncException() {
  String key = "throwExceptionKey";
  Bucket bucket = mock(Bucket.class);
  AsyncBucket asyncBucket = mock(AsyncBucket.class);
  CouchbaseTableReadFunction readFunction = createAndInit(bucket, asyncBucket);
  when(asyncBucket.get(eq(key), anyObject(), anyLong(), any(TimeUnit.class))).thenReturn(
      Observable.error(new CouchbaseException()));
  assertTrue(readFunction.getAsync(key).isCompletedExceptionally());
}
 

@Test
public void givenSelectDSL_whenQuery_thenResult() {
    Bucket bucket = bucketFactory.getTravelSampleBucket();
    Statement statement = select("*")
            .from(i("travel-sample"))
            .where(x("type").eq(s("airport")))
            .limit(100);
    N1qlQueryResult r3 = bucket.query(N1qlQuery.simple(statement));

    List<JsonNode> list2 = extractJsonResult(r3);
    System.out.println("First Airport Name: " + list2.get(0).get("travel-sample").get("airportname").asText());

}
 

@Test
public void testPutAsyncJsonObjectValue() throws Exception {
  String key = "key";
  JsonObject value = JsonObject.fromJson("{\"id\": 1}");
  Bucket bucket = mock(Bucket.class);
  AsyncBucket asyncBucket = mock(AsyncBucket.class);
  CouchbaseTableWriteFunction<JsonObject> writeFunction = createAndInit(bucket, asyncBucket);
  when(asyncBucket.upsert(any(Document.class), anyLong(), any(TimeUnit.class))).thenReturn(Observable.just(null));
  assertNull(writeFunction.putAsync(key, value).get());
}
 

private void setupMockBucket(Bucket bucket) throws InitializationException {
    CouchbaseClusterControllerService service = mock(CouchbaseClusterControllerService.class);
    when(service.getIdentifier()).thenReturn(SERVICE_ID);
    when(service.openBucket(anyString())).thenReturn(bucket);
    when(bucket.name()).thenReturn("bucket-1");
    testRunner.addControllerService(SERVICE_ID, service);
    testRunner.enableControllerService(service);
    testRunner.setProperty(COUCHBASE_CLUSTER_SERVICE, SERVICE_ID);
}