Move java cloud monitoring sample into github.

Also - add tests.

monitoring/pom.xml

@@ -0,0 +1,76 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.google.cloud.monitoring.samples</groupId>
+  <artifactId>cloud-monitoring-samples</artifactId>
+  <packaging>jar</packaging>
+
+  <parent>
+    <artifactId>doc-samples</artifactId>
+    <groupId>com.google.cloud</groupId>
+    <version>1.0.0</version>
+    <relativePath>..</relativePath>
+  </parent>
+
+
+  <repositories>
+    <repository>
+      <id>googleapis</id>
+      <url>https://google-api-client-libraries.appspot.com/mavenrepo</url>
+    </repository>
+  </repositories>
+
+  <dependencies>
+    <dependency>
+        <groupId>com.google.apis</groupId>
+        <artifactId>google-api-services-cloudmonitoring</artifactId>
+        <version>v2beta2-rev20-1.20.0</version>
+    </dependency>
+    <dependency>
+        <groupId>com.google.oauth-client</groupId>
+        <artifactId>google-oauth-client</artifactId>
+        <version>${project.oauth.version}</version>
+    </dependency>
+    <dependency>
+        <groupId>com.google.http-client</groupId>
+        <artifactId>google-http-client-jackson2</artifactId>
+        <version>${project.http.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.oauth-client</groupId>
+      <artifactId>google-oauth-client-jetty</artifactId>
+      <version>${project.oauth.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.jcabi</groupId>
+      <artifactId>jcabi-matchers</artifactId>
+      <version>1.3</version>
+    </dependency>
+  </dependencies>
+
+  <properties>
+    <project.http.version>1.19.0</project.http.version>
+    <project.oauth.version>1.19.0</project.oauth.version>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <build>
+      <sourceDirectory>src/main/java</sourceDirectory>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.2</version>
+        <configuration>
+          <source>5</source>
+          <target>5</target>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

monitoring/src/main/java/CloudMonitoringAuthSample.java

@@ -0,0 +1,106 @@
+/**
+ * Copyright (c) 2015 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.
+ */
+[START all]
+import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
+import com.google.api.client.http.HttpTransport;
+import com.google.api.client.http.javanet.NetHttpTransport;
+import com.google.api.client.json.JsonFactory;
+import com.google.api.client.json.jackson2.JacksonFactory;
+import com.google.api.services.cloudmonitoring.CloudMonitoring;
+import com.google.api.services.cloudmonitoring.CloudMonitoringScopes;
+
+import java.io.IOException;
+import java.security.GeneralSecurityException;
+
+/**
+ * Simple command-line program to demonstrate connecting to and retrieving data
+ * from the Google Cloud Monitoring API using application default credentials.
+ */
+public final class CloudMonitoringAuthSample {
+
+  /**
+   * The metric that we want to fetch.
+   */
+  private static final String METRIC =
+      "compute.googleapis.com/instance/disk/read_ops_count";
+
+  /**
+   * The end of the time interval to fetch.
+   */
+  private static final String YOUNGEST = "2015-01-01T00:00:00Z";
+
+  /**
+   * Utility class doesn't need to be instantiated.
+   */
+  private CloudMonitoringAuthSample() { }
+
+
+  /**
+   * Builds and returns a CloudMonitoring service object authorized with the
+   * application default credentials.
+   *
+   * @return CloudMonitoring service object that is ready to make requests.
+   * @throws GeneralSecurityException if authentication fails.
+   * @throws IOException if authentication fails.
+   */
+  private static CloudMonitoring authenticate()
+      throws GeneralSecurityException, IOException {
+    // Grab the Application Default Credentials from the environment.
+    GoogleCredential credential = GoogleCredential.getApplicationDefault()
+        .createScoped(CloudMonitoringScopes.all());
+
+    // Create and return the CloudMonitoring service object
+    HttpTransport httpTransport = new NetHttpTransport();
+    JsonFactory jsonFactory = new JacksonFactory();
+    CloudMonitoring service = new CloudMonitoring.Builder(httpTransport,
+        jsonFactory, credential)
+        .setApplicationName("Demo")
+        .build();
+    return service;
+  }
+
+  /**
+   * Query the Google Cloud Monitoring API using a service account and print the
+   * result to the console.
+   *
+   * @param args The first arg should be the project name you'd like to inspect.
+   * @throws Exception if something goes wrong.
+   */
+  public static void main(final String[] args) throws Exception {
+    if (args.length != 2) {
+      System.err.println(String.format("Usage: %s <project-name>", args[0]));
+      return;
+    }
+
+    String project = args[1];
+
+    // Create an authorized API client
+    CloudMonitoring cloudmonitoring = authenticate();
+
+    CloudMonitoring.Timeseries.List timeseriesListRequest =
+        cloudmonitoring.timeseries().list(project, METRIC, YOUNGEST);
+
+    System.out.println("Timeseries.list raw response:");
+    System.out.println(timeseriesListRequest.execute().toPrettyString());
+
+    // This example only demonstrates completing the OAuth flow and displaying
+    // the raw response from a simple request. See the API client library docs
+    // for applicable methods for working with the returned data, including
+    // getting results and paging through results.
+
+  }
+}
+[END all]

monitoring/src/test/java/CloudMonitoringAuthSampleTest.java

@@ -0,0 +1,63 @@
+/**
+ * Copyright 2015 Google Inc. 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
+ *
+ * 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.
+ */
+
+import static com.jcabi.matchers.RegexMatchers.*;
+import static org.junit.Assert.*;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import java.util.regex.Pattern;
+
+/**
+ * Tests the Cloud Monitoring auth sample.
+ */
+public class CloudMonitoringAuthSampleTest {
+  private final ByteArrayOutputStream stdout =
+      new ByteArrayOutputStream();
+  private final ByteArrayOutputStream stderr =
+      new ByteArrayOutputStream();
+
+  @Before
+  public void setUp() {
+    System.setOut(new PrintStream(stdout));
+    System.setErr(new PrintStream(stderr));
+  }
+
+  @After
+  public void tearDown() {
+    System.setOut(null);
+    System.setErr(null);
+  }
+
+  @Test
+  public void testUsage() throws Exception {
+    CloudMonitoringAuthSample.main(new String[] { "command-name" });
+    assertEquals("Usage: command-name <project-name>\n", stderr.toString());
+  }
+
+  @Test
+  public void testListTimeSeries() throws Exception {
+    CloudMonitoringAuthSample.main(new String[] { "", "cloud-samples-tests" });
+    String out = stdout.toString();
+    assertThat(out, containsPattern("Timeseries.list raw response:"));
+    assertThat(out, containsPattern("\\{\\s*\"kind\" *: *\"cloudmonitoring#listTimeseriesResponse\","));
+    assertThat(out, containsPattern(".*oldest.*"));
+  }
+}

pom.xml

@@ -24,6 +24,7 @@
         <module>bigquery</module>
         <module>cloud-storage/xml-api/cmdline-sample</module>
         <module>cloud-storage/xml-api/serviceaccount-appengine-sample</module>
+        <module>monitoring</module>
     </modules>
 
     <build>