Initial commit of sample

iot/api-client/README.md

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+# Cloud IoT Core Java Samples
+This folder contains Java samples that demonstrate an overview of the
+Google Cloud IoT Core platform.
+
+## Quickstart
+
+1. Install the gCloud CLI as described in [the device manager guide](https://cloud-dot-devsite.googleplex.com/iot/docs/device_manager_guide).
+2. Create a PubSub topic:
+
+    gcloud beta pubsub topics create projects/my-iot-project/topics/device-events
+
+3. Add the special account `[email protected]` to that
+PubSub topic from the [Cloud Developer Console](https://console.cloud.google.com)
+or by using the helper script in the [/scripts](./scripts) folder.
+
+4. Create a registry:
+
+    gcloud alpha iot registries create my-registry \
+        --project=my-iot-project \
+        --region=us-central1 \
+        --pubsub-topic=projects/my-iot-project/topics/device-events
+
+5. Use the [`generate_keys.sh`](generate_keys.sh) script to generate your signing keys:
+
+    ./generate_keys.sh
+
+6. Create a device.
+
+    gcloud alpha iot devices create my-java-device \
+        --project=my-iot-project \
+        --region=us-central1 \
+        --registry=my-registry \
+        --public-key path=rsa_cert.pem,type=rs256
+
+7. Connect a sample device using the sample app in the [`mqtt_example`](./mqtt_example) folder.
+8. Learn how to manage devices programatically with the sample app in the
+`manager` folder.
+

iot/api-client/generate_keys.sh

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+#!/bin/bash
+
+# Copyright 2017 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.
+
+openssl req -x509 -newkey rsa:2048 -keyout rsa_private.pem -nodes -out \
+    rsa_cert.pem -subj "/CN=unused"
+openssl ecparam -genkey -name prime256v1 -noout -out ec_private.pem
+openssl ec -in ec_private.pem -pubout -out ec_public.pem
+openssl pkcs8 -topk8 -inform PEM -outform DER -in rsa_private.pem \
+    -nocrypt > rsa_private_pkcs8
+openssl pkcs8 -topk8 -inform PEM -outform DER -in ec_private.pem \
+    -nocrypt > ec_private_pkcs8

iot/api-client/manager/README.md

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+# Cloud IoT Core Java Device Management example
+
+This sample app demonstrates device management for Google Cloud IoT Core.
+
+Note that before you can run the sample, you must configure a Google Cloud
+PubSub topic for Cloud IoT as described in [the parent README](../README.md).
+
+## Setup
+
+Manually install [the provided client library](https://cloud.google.com/iot/resources/java/cloud-iot-core-library.jar)
+for Cloud IoT Core to Maven:
+
+     mvn install:install-file -Dfile=cloud-iot-core-library.jar -DgroupId=com.google.apis \
+    -DartifactId=google-api-services-cloudiot -Dversion=v1beta1-rev20170418-1.22.0-SNAPSHOT \
+    -Dpackaging=jar
+
+Run the following command to install the libraries and build the sample with
+Maven:
+
+mvn clean compile assembly:single
+
+## Running the sample
+
+The following command summarizes the sample usage:
+
+    mvn exec:java \
+        -Dexec.mainClass="com.google.cloud.iot.examples.DeviceRegistryExample" \
+        -Dexec.args="-project_id=my-project-id \
+            -pubsub_topic=projects/my-project-id/topics/my-topic-id \
+            -ec_public_key_file=/path/to/ec_public.pem \
+            -rsa_certificate_file=/path/to/rsa_cert.pem"
+
+For example, if your project ID is `blue-jet-123`, your service account
+credentials are stored in your home folder in creds.json and you have generated
+your credentials using the shell script provided in the parent folder, you can
+run the sample as:
+
+    mvn exec:java \
+        -Dexec.mainClass="com.google.cloud.iot.examples.DeviceRegistryExample" \
+        -Dexec.args="-project_id=blue-jet-123 \
+            -pubsub_topic=projects/blue-jet-123/topics/device-events \
+            -ec_public_key_file=../ec_public.pem \
+            -rsa_certificate_file=../rsa_cert.pem"

iot/api-client/manager/pom.xml

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+<!--
+  Copyright 2017 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 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.example.cloud</groupId>
+  <artifactId>cloudiot-manager-demo</artifactId>
+  <packaging>jar</packaging>
+  <version>1.0</version>
+  <name>cloudiot-manager-demo</name>
+  <url>http://maven.apache.org</url>
+
+  <!-- Parent defines config for testing & linting. -->
+  <parent>
+    <artifactId>doc-samples</artifactId>
+    <groupId>com.google.cloud</groupId>
+    <version>1.0.0</version>
+    <relativePath>../../../</relativePath>
+  </parent>
+
+  <properties>
+    <maven.compiler.source>1.7</maven.compiler.source>
+    <maven.compiler.target>1.7</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.google.apis</groupId>
+      <artifactId>google-api-services-cloudiot</artifactId>
+      <version>v1beta1-rev20170418-1.22.0-SNAPSHOT</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.oauth-client</groupId>
+      <artifactId>google-oauth-client</artifactId>
+      <version>1.22.0</version>
+    </dependency>
+    <dependency>
+      <groupId>com.google.api-client</groupId>
+      <artifactId>google-api-client</artifactId>
+      <version>1.22.0</version>
+    </dependency>
+    <dependency>
+      <groupId>commons-cli</groupId>
+      <artifactId>commons-cli</artifactId>
+      <version>1.3</version>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-assembly-plugin</artifactId>
+        <configuration>
+          <archive>
+            <manifest>
+              <mainClass>com.example.cloudiot.Manage</mainClass>
+            </manifest>
+          </archive>
+          <descriptorRefs>
+            <descriptorRef>jar-with-dependencies</descriptorRef>
+          </descriptorRefs>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>