Add gcloud-java-compute module and immutable resources

gcloud-java-compute/README.md

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+Google Cloud Java Client for Compute (Alpha)
+====================================
+
+Java idiomatic client for [Google Cloud Compute] (https://cloud.google.com/compute).
+
+[![Build Status](https://travis-ci.org/GoogleCloudPlatform/gcloud-java.svg?branch=master)](https://travis-ci.org/GoogleCloudPlatform/gcloud-java)
+[![Coverage Status](https://coveralls.io/repos/GoogleCloudPlatform/gcloud-java/badge.svg?branch=master)](https://coveralls.io/r/GoogleCloudPlatform/gcloud-java?branch=master)
+<!-- TODO(mziccard): add in the maven shield once the artifact is pushed to maven -->
+[![Codacy Badge](https://api.codacy.com/project/badge/grade/9da006ad7c3a4fe1abd142e77c003917)](https://www.codacy.com/app/mziccard/gcloud-java)
+[![Dependency Status](https://www.versioneye.com/user/projects/56bd8ee72a29ed002d2b0969/badge.svg?style=flat)](https://www.versioneye.com/user/projects/56bd8ee72a29ed002d2b0969)
+
+-  [Homepage] (https://googlecloudplatform.github.io/gcloud-java/)
+
+<!-- TODO(mziccard): add link to API documentation -->
+
+> Note: This client is a work-in-progress, and may occasionally
+> make backwards-incompatible changes.
+
+Quickstart
+----------
+If you are using Maven, add this to your pom.xml file
+<!-- TODO(mziccard): add maven dependency code -->
+If you are using Gradle, add this to your dependencies
+<!-- TODO(mziccard): add gradle dependency code -->
+If you are using SBT, add this to your dependencies
+<!-- TODO(mziccard): add sbt dependency code -->
+
+Example Application
+-------------------
+<!-- TODO(mziccard): add example application -->
+
+Authentication
+--------------
+
+See the [Authentication](https://github.com/GoogleCloudPlatform/gcloud-java#authentication) section in the base directory's README.
+
+About Google Cloud Compute
+--------------------------
+
+[Google Cloud Compute][cloud-compute] delivers virtual machines running in Google's innovative data
+centers and worldwide fiber network. Compute Engine's tooling and workflow support enable scaling
+from single instances to global, load-balanced cloud computing. Compute Engine's VMs boot quickly,
+come with persistent disk storage, deliver consistent performance and are available in many
+configurations.
+
+Be sure to activate the Google Cloud Compute API on the Developer's Console to use Compute from
+your project.
+
+See the ``gcloud-java`` API [compute documentation][compute-api] to learn how to interact
+with Google Cloud Compute using this Client Library.
+
+Getting Started
+---------------
+<!-- TODO(mziccard): add code snippet -->
+
+Troubleshooting
+---------------
+
+To get help, follow the `gcloud-java` links in the `gcloud-*`[shared Troubleshooting document](https://github.com/GoogleCloudPlatform/gcloud-common/blob/master/troubleshooting/readme.md#troubleshooting).
+
+Java Versions
+-------------
+
+Java 7 or above is required for using this client.
+
+Testing
+-------
+
+This library has tools to help make tests for code using Cloud Compute.
+
+See [TESTING] to read more about testing.
+
+Versioning
+----------
+
+This library follows [Semantic Versioning] (http://semver.org/).
+
+It is currently in major version zero (``0.y.z``), which means that anything
+may change at any time and the public API should not be considered
+stable.
+
+Contributing
+------------
+
+Contributions to this library are always welcome and highly encouraged.
+
+See [CONTRIBUTING] for more information on how to get started.
+
+License
+-------
+
+Apache 2.0 - See [LICENSE] for more information.
+
+
+[CONTRIBUTING]:https://github.com/GoogleCloudPlatform/gcloud-java/blob/master/CONTRIBUTING.md
+[LICENSE]: https://github.com/GoogleCloudPlatform/gcloud-java/blob/master/LICENSE
+[TESTING]: https://github.com/GoogleCloudPlatform/gcloud-java/blob/master/TESTING.md#testing-code-that-uses-compute
+[cloud-platform]: https://cloud.google.com/
+
+[cloud-compute]: https://cloud.google.com/compute/
+[compute-api]: http://googlecloudplatform.github.io/gcloud-java/apidocs/index.html?com/google/gcloud/compute/package-summary.html

gcloud-java-compute/pom.xml

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+<?xml version="1.0"?>
+<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/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <artifactId>gcloud-java-compute</artifactId>
+  <packaging>jar</packaging>
+  <name>GCloud Java compute</name>
+  <description>
+    Java idiomatic client for Google Cloud Compute Engine.
+  </description>
+  <parent>
+    <groupId>com.google.gcloud</groupId>
+    <artifactId>gcloud-java-pom</artifactId>
+    <version>0.1.5-SNAPSHOT</version>
+  </parent>
+  <properties>
+    <site.installationModule>gcloud-java-compute</site.installationModule>
+  </properties>
+  <dependencies>
+    <dependency>
+      <groupId>${project.groupId}</groupId>
+      <artifactId>gcloud-java-core</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.apis</groupId>
+      <artifactId>google-api-services-compute</artifactId>
+      <version>v1-rev97-1.21.0</version>
+      <scope>compile</scope>
+      <exclusions>
+        <exclusion>
+          <groupId>com.google.guava</groupId>
+          <artifactId>guava-jdk5</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.12</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.easymock</groupId>
+      <artifactId>easymock</artifactId>
+      <version>3.4</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+</project>

gcloud-java-compute/src/main/java/com/google/gcloud/compute/Compute.java

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+/*
+ * Copyright 2016 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.
+ */
+
+package com.google.gcloud.compute;
+
+import com.google.gcloud.Service;
+
+/**
+ * An interface for Google Cloud Compute Engine.
+ *
+ * @see <a href="https://cloud.google.com/compute/docs/">Google Cloud Compute Engine</a>
+ */
+public interface Compute extends Service<ComputeOptions> {
+}

gcloud-java-compute/src/main/java/com/google/gcloud/compute/ComputeException.java

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+/*
+ * Copyright 2016 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.
+ */
+
+package com.google.gcloud.compute;
+
+import com.google.common.collect.ImmutableSet;
+import com.google.gcloud.BaseServiceException;
+import com.google.gcloud.RetryHelper.RetryHelperException;
+import com.google.gcloud.RetryHelper.RetryInterruptedException;
+
+import java.io.IOException;
+import java.util.Set;
+
+/**
+ * Compute Engine service exception.
+ */
+public class ComputeException extends BaseServiceException {
+
+  private static final Set<Error> RETRYABLE_ERRORS = ImmutableSet.of(new Error(500, null));
+  private static final long serialVersionUID = -8039359778707845810L;
+
+  public ComputeException(int code, String message) {
+    super(code, message, null, true);
+  }
+
+  public ComputeException(IOException exception) {
+    super(exception, true);
+  }
+
+  @Override
+  protected Set<Error> retryableErrors() {
+    return RETRYABLE_ERRORS;
+  }
+
+  /**
+   * Translate RetryHelperException to the ComputeException that caused the error. This method will
+   * always throw an exception.
+   *
+   * @throws ComputeException when {@code ex} was caused by a {@code ComputeException}
+   * @throws RetryInterruptedException when {@code ex} is a {@code RetryInterruptedException}
+   */
+  static BaseServiceException translateAndThrow(RetryHelperException ex) {
+    BaseServiceException.translateAndPropagateIfPossible(ex);
+    throw new ComputeException(UNKNOWN_CODE, ex.getMessage());
+  }
+}

gcloud-java-compute/src/main/java/com/google/gcloud/compute/ComputeFactory.java

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+/*
+ * Copyright 2016 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.
+ */
+
+package com.google.gcloud.compute;
+
+import com.google.gcloud.ServiceFactory;
+
+/**
+ * An interface for Compute factories.
+ */
+public interface ComputeFactory extends ServiceFactory<Compute, ComputeOptions> {
+}

gcloud-java-compute/src/main/java/com/google/gcloud/compute/ComputeImpl.java

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+/*
+ * Copyright 2016 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.
+ */
+
+package com.google.gcloud.compute;
+
+import com.google.gcloud.BaseService;
+import com.google.gcloud.spi.ComputeRpc;
+
+final class ComputeImpl extends BaseService<ComputeOptions> implements Compute {
+
+  private final ComputeRpc computeRpc;
+
+  ComputeImpl(ComputeOptions options) {
+    super(options);
+    computeRpc = options.rpc();
+  }
+}