googleapis · elisheva-qlogic · Nov 15, 2018 · Dec 5, 2018 · Dec 6, 2018 · Dec 6, 2018
diff --git a/google-cloud-examples/pom.xml b/google-cloud-examples/pom.xml
@@ -89,6 +89,20 @@
       <version>4.12</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-bigtable</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-bigtable-admin</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-all</artifactId>
+      <version>RELEASE</version>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
   <build>
     <plugins>

diff --git a/google-cloud-examples/src/main/java/com/google/cloud/examples/bigtable/HelloWorld.java b/google-cloud-examples/src/main/java/com/google/cloud/examples/bigtable/HelloWorld.java
@@ -0,0 +1,167 @@
+/*
+ * Copyright 2018 Google LLC.  All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.cloud.examples.bigtable;
+
+import com.google.api.gax.rpc.NotFoundException;
+import com.google.api.gax.rpc.ServerStream;
+import com.google.cloud.bigtable.admin.v2.BigtableTableAdminClient;
+import com.google.cloud.bigtable.admin.v2.BigtableTableAdminSettings;
+import com.google.cloud.bigtable.admin.v2.models.CreateTableRequest;
+import com.google.cloud.bigtable.data.v2.BigtableDataClient;
+import com.google.cloud.bigtable.data.v2.BigtableDataSettings;
+import com.google.cloud.bigtable.data.v2.models.InstanceName;
+import com.google.cloud.bigtable.data.v2.models.Query;
+import com.google.cloud.bigtable.data.v2.models.Row;
+import com.google.cloud.bigtable.data.v2.models.RowCell;
+import com.google.cloud.bigtable.data.v2.models.RowMutation;
+import java.io.IOException;
+
+public class HelloWorld {
+
+  private static final String COLUMN_FAMILY = "cf1";
+  private static final String COLUMN_QUALIFIER = "greeting";
+  private static final String ROW_KEY_PREFIX = "rowKey";
+  private final String tableId;
+  private final BigtableDataClient dataClient;
+  private final BigtableTableAdminClient adminClient;
+
+  public static void main(String[] args) throws Exception {
+
+    if (args.length != 2) {
+      System.out.println("Missing required project id or instance id");
+    }
+    String projectId = args[0];
+    String instanceId = args[1];
+
+    HelloWorld helloWorld = new HelloWorld(projectId, instanceId, "test-table");
+    helloWorld.run();
+  }
+
+  public HelloWorld(String projectId, String instanceId, String tableId) throws IOException {
+    this.tableId = tableId;
+
+    // [START connecting_to_bigtable]
+    // Create the settings to configure a bigtable data client
+    BigtableDataSettings settings =
+        BigtableDataSettings.newBuilder()
+            .setInstanceName(InstanceName.of(projectId, instanceId))
+            .build();
+
+    // Create bigtable data client
+    dataClient = BigtableDataClient.create(settings);
+
+    // Create the settings to configure a bigtable admin client
+    BigtableTableAdminSettings adminSettings =
+        BigtableTableAdminSettings.newBuilder()
+            .setInstanceName(com.google.bigtable.admin.v2.InstanceName.of(projectId, instanceId))
+            .build();
+
+    // Create bigtable admin client
+    adminClient = BigtableTableAdminClient.create(adminSettings);
+    // [END connecting_to_bigtable]
+  }
+
+  public void run() throws Exception {
+    createTable();
+    writeToTable();
+    readSingleRow();
+    readTable();
+    deleteTable();
+
+    dataClient.close();
+    adminClient.close();
+  }
+
+  public void createTable() {
+    // [START creating_a_table]
+    // Check if table exists, create table if does not exist
+    if (!adminClient.exists(tableId)) {
+      System.out.println("Creating table: " + tableId);
+      CreateTableRequest createTableRequest =
+          CreateTableRequest.of(tableId).addFamily(COLUMN_FAMILY);
+      adminClient.createTable(createTableRequest);
+      System.out.printf("Table %s created successfully%n", tableId);
+    }
+    // [END creating_a_table]
+  }
+
+  public void writeToTable() {
+    // [START writing_rows]
+    try {
+      System.out.println("\nWriting some greetings to the table");
+      String[] greetings = {"Hello World!", "Hello Bigtable!", "Hello Java!"};
+      for (int i = 0; i < greetings.length; i++) {
+        RowMutation rowMutation =
+            RowMutation.create(tableId, ROW_KEY_PREFIX + i)
+                .setCell(COLUMN_FAMILY, COLUMN_QUALIFIER, greetings[i]);
+        dataClient.mutateRow(rowMutation);
+        System.out.println(greetings[i]);
+      }
+    } catch (NotFoundException e) {
+      System.err.println("Exception while writing to table: " + e.getMessage());
+    }
+    // [END writing_rows]
+  }
+
+  public void readSingleRow() {
+    // [START reading_a_row]
+    try {
+      System.out.println("\nReading a single row by row key");
+      Row row = dataClient.readRow(tableId, ROW_KEY_PREFIX + 0);
+      System.out.println("Row: " + row.getKey().toStringUtf8());
+      for (RowCell cell : row.getCells()) {
+        System.out.printf(
+            "Family: %s    Qualifier: %s    Value: %s%n",
+            cell.getFamily(), cell.getQualifier().toStringUtf8(), cell.getValue().toStringUtf8());
+      }
+    } catch (NotFoundException e) {
+      System.err.println("Exception while reading a single row: " + e.getMessage());
+    }
+    // [END reading_a_row]
+  }
+
+  public void readTable() {
+    // [START scanning_all_rows]
+    try {
+      System.out.println("\nReading the entire table");
+      Query query = Query.create(tableId);
+      ServerStream<Row> rowStream = dataClient.readRows(query);
+      for (Row r : rowStream) {
+        System.out.println("Row Key: " + r.getKey().toStringUtf8());
+        for (RowCell cell : r.getCells()) {
+          System.out.printf(
+              "Family: %s    Qualifier: %s    Value: %s%n",
+              cell.getFamily(), cell.getQualifier().toStringUtf8(), cell.getValue().toStringUtf8());
+        }
+      }
+    } catch (NotFoundException e) {
+      System.err.println("Exception while reading table: " + e.getMessage());
+    }
+    // [END scanning_all_rows]
+  }
+
+  public void deleteTable() {
+    // [START deleting_a_table]
+    System.out.println("\nDeleting table: " + tableId);
+    try {
+      adminClient.deleteTable(tableId);
+      System.out.printf("Table %s deleted successfully%n", tableId);
+    } catch (NotFoundException e) {
+      System.err.println("Exception while deleting table: " + e.getMessage());
+    }
+    // [END deleting_a_table]
+  }
+}