Adding BigQuery + StackDriver Monitoring API Showcase sample.

appengine-java8/bigquery/README.md

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+<a href="https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/GoogleCloudPlatform/java-docs-samples&page=editor&open_in_editor=appengine-java8/bigquery/README.md">
+<img alt="Open in Cloud Shell" src ="http://gstatic.com/cloudssh/images/open-btn.png"></a>
+
+# Google Cloud API Showcase: Cloud BigQuery & StackDriver Monitoring in App Engine Standard Java 8 Environment
+
+This API Showcase demonstrates how to run an AppEngine Standard application with dependencies on both 
+[Google BigQuery][bigquery] and [StackDriver Monitoring][stackdriver].
+
+[bigquery]: https://cloud.google.com/bigquery/docs
+[stackdriver]: https://cloud.google.com/monitoring/docs
+
+The home page of this application provides a form to initiate a query of public data, in this case StackOverflow
+questions tagged with `google-bigquery`.
+
+The home page also provides a summary view of the metrics that have been logged in the past 30 days.
+
+## Clone the sample app
+
+Copy the sample apps to your local machine, and cd to the appengine-java8/bigquery directory:
+
+```
+git clone https://github.com/GoogleCloudPlatform/java-docs-samples
+cd appengine-java8/bigquery
+```
+
+## Setup
+
+- Make sure [`gcloud`](https://cloud.google.com/sdk/docs/) is installed and initialized:
+```
+   gcloud init
+```
+- If this is the first time you are creating an App Engine project
+```
+   gcloud app create
+```
+- For local development, [set up][set-up] authentication
+- Enable [BigQuery][bigquery-api] and [Monitoring][monitoring-api] APIs
+- If you have not already enabled your project for StackDriver, do so by following [these instructions][stackdriver-setup].
+
+[set-up]: https://cloud.google.com/docs/authentication/getting-started
+[bigquery-api]: https://console.cloud.google.com/launcher/details/google/bigquery-json.googleapis.com
+[monitoring-api]: https://console.cloud.google.com/launcher/details/google/monitoring.googleapis.com
+[stackdriver-setup]: https://cloud.google.com/monitoring/accounts/tiers#not-enabled
+
+## Run locally
+Run using shown Maven command. You can then direct your browser to `http://localhost:8080/` to see the most recent query
+run (since the app started) and the metrics from the past 30 days.
+
+```
+mvn appengine:run
+```
+
+Note: The first time the app is run (or after any metrics definitions have been deleted) it may take up to 5 minutes for
+the MetricDescriptors to sync with StackDriver before any results are shown. If you do not see results, please wait a
+few moments and try again.
+
+## Deploy
+
+- Deploy to AppEngine Standard using the following Maven command.
+```
+   mvn appengine:deploy
+```
+- Direct your browser to `https://<your-project-id>.appspot.com`.
+- View more in-depth metrics data on the [StackDriver Monitoring Dashboard][dashboard]
+
+[dashboard]: https://pantheon.corp.google.com/monitoring
+

appengine-java8/bigquery/pom.xml

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+<!--
+ Copyright 2018 Google Inc.
+
+ 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
+
+       http://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.
+-->
+<project>
+  <modelVersion>4.0.0</modelVersion>
+  <packaging>war</packaging>
+  <version>1.0-SNAPSHOT</version>
+  <groupId>com.example.appengine</groupId>
+  <artifactId>appengine-bigquery-monitoring-j8</artifactId>
+
+  <!--
+    The parent pom defines common style checks and testing strategies for our samples.
+    Removing or replacing it should not effect the execution of the samples in anyway.
+  -->
+  <parent>
+    <groupId>com.google.cloud.samples</groupId>
+    <artifactId>shared-configuration</artifactId>
+    <version>1.0.8</version>
+  </parent>
+
+  <properties>
+    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>1.8</maven.compiler.source>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.google.appengine</groupId>
+      <artifactId>appengine-api-1.0-sdk</artifactId>
+      <version>1.9.60</version>
+    </dependency>
+    <dependency>
+      <groupId>javax.servlet</groupId>
+      <artifactId>javax.servlet-api</artifactId>
+      <version>3.1.0</version>
+      <type>jar</type>
+      <scope>provided</scope>
+    </dependency>
+
+    <!-- [START dependencies] -->
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-bigquery</artifactId>
+      <version>0.33.0-beta</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-monitoring</artifactId>
+      <version>0.33.0-beta</version>
+    </dependency>
+    <!-- [END dependencies ] -->
+
+    <dependency>
+      <groupId>commons-cli</groupId>
+      <artifactId>commons-cli</artifactId>
+      <version>1.4</version>
+    </dependency>
+    <dependency>
+      <groupId>joda-time</groupId>
+      <artifactId>joda-time</artifactId>
+      <version>2.9.9</version>
+    </dependency>
+
+    <!-- Test Dependencies -->
+    <dependency>
+      <groupId>com.google.appengine</groupId>
+      <artifactId>appengine-api-stubs</artifactId>
+      <version>1.9.60</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.appengine</groupId>
+      <artifactId>appengine-tools-sdk</artifactId>
+      <version>1.9.60</version>
+      <scope>test</scope>
+    </dependency>
+
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.12</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <version>2.13.0</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.appengine</groupId>
+      <artifactId>appengine-testing</artifactId>
+      <version>1.9.60</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.truth</groupId>
+      <artifactId>truth</artifactId>
+      <version>0.39</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <!-- for hot reload of the web application -->
+    <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>
+    <plugins>
+      <plugin>
+        <groupId>com.google.cloud.tools</groupId>
+        <artifactId>appengine-maven-plugin</artifactId>
+        <version>1.3.1</version>
+        <configuration>
+          <deploy.promote>true</deploy.promote>
+          <deploy.stopPreviousVersion>true</deploy.stopPreviousVersion>
+        </configuration>
+      </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-war-plugin</artifactId>
+        <version>3.1.0</version>
+      </plugin>
+
+    </plugins>
+  </build>
+</project>

appengine-java8/bigquery/src/main/java/com/example/appengine/bigquerylogging/BigQueryHome.java

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+/*
+ * Copyright 2018 Google Inc.
+ *
+ * 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
+ *
+ * http://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.example.appengine.bigquerylogging;
+
+import com.google.cloud.bigquery.FieldValueList;
+import com.google.cloud.bigquery.TableResult;
+
+import java.io.IOException;
+import java.util.List;
+
+public class BigQueryHome {
+  private static BigQueryRunner queryRunner;
+
+  private static BigQueryRunner getQueryRunner() throws IOException {
+    if (queryRunner == null) {
+      queryRunner = BigQueryRunner.getInstance();
+    }
+    return queryRunner;
+  }
+
+  public static String getMostRecentRun() throws IOException {
+    return convertRunToHtmlTable(BigQueryRunner.getMostRecentRunResult());
+  }
+
+  public static String getMetricAverages() throws IOException {
+    return convertAveragesToHtmlTable(getQueryRunner().getTimeSeriesValues());
+  }
+
+  private static String convertRunToHtmlTable(TableResult result) {
+    if (result == null) {
+      return "";
+    }
+
+    StringBuilder sb = new StringBuilder();
+    for (FieldValueList row : result.iterateAll()) {
+      sb.append("<tr>");
+      String url = row.get("url").getStringValue();
+      addColumn(sb, String.format("<a href=\"%s\">%s</a>", url, url));
+      addColumn(sb, row.get("view_count").getLongValue());
+      sb.append("</tr>");
+    }
+    return sb.toString();
+  }
+
+  private static String convertAveragesToHtmlTable(List<TimeSeriesSummary> values) {
+
+    StringBuilder sb = new StringBuilder();
+    for (TimeSeriesSummary metric : values) {
+      sb.append("<tr>");
+      addColumn(sb, metric.getName());
+      addColumn(sb, metric.getValues().size());
+      addColumn(sb, metric.getMostRecentRunTime());
+      addColumn(sb, metric.getMostRecentValue());
+      addColumn(sb, metric.getAverage());
+      sb.append("</tr>");
+    }
+    return sb.toString();
+  }
+
+  private static <T> void addColumn(StringBuilder sb, T content) {
+    sb.append("<td>").append(content.toString()).append("</td>");
+  }
+}

appengine-java8/bigquery/src/main/java/com/example/appengine/bigquerylogging/BigQueryRun.java

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+/*
+ * Copyright 2018 Google Inc.
+ *
+ * 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
+ *
+ * http://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.example.appengine.bigquerylogging;
+
+import java.io.IOException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@WebServlet(name = "runQuery BigQuery", value = "/bigquery/run")
+public class BigQueryRun extends HttpServlet {
+  private BigQueryRunner queryRunner;
+
+  public BigQueryRun() throws IOException {
+    this.queryRunner = BigQueryRunner.getInstance();
+  }
+
+  @Override
+  public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
+    try {
+      queryRunner.runQuery();
+    } catch (InterruptedException e) {
+      resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
+          "Interrupted while running BigQuery job.");
+    }
+    // redirect to home page
+    resp.sendRedirect("/");
+  }
+}