Updates sample to work as commandline

iot/api-client/manager/README.md

@@ -10,7 +10,7 @@ PubSub topic for Cloud IoT as described in [the parent README](../README.md).
 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 \
+     mvn install:install-file -Dfile=cloud-iot-core-library.jar -DgroupId=com.example.apis \
     -DartifactId=google-api-services-cloudiot -Dversion=v1beta1-rev20170418-1.22.0-SNAPSHOT \
     -Dpackaging=jar
 
@@ -21,23 +21,116 @@ mvn clean compile assembly:single
 
 ## Running the sample
 
-The following command summarizes the sample usage:
+The following description 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"
+    usage: DeviceRegistryExample [--cloud_region <arg>] --command <arg>
+       [--ec_public_key_file <arg>] --project_id <arg> --pubsub_topic
+       <arg> --registry_name <arg> [--rsa_certificate_file <arg>]
+
+    Cloud IoT Core Commandline Example (Device / Registry management):
+
+    --cloud_region <arg>           GCP cloud region.
+    --command <arg>                Command to run:
+                                   create-iot-topic
+                                   create-rsa
+                                   create-es
+                                   create-unauth
+                                   create-registry
+                                   delete-device
+                                   delete-registry
+                                   get-device
+                                   get-registry
+                                   list-devices
+                                   list-registries
+                                   patch-device-es
+                                   patch-device-rsa
+    --ec_public_key_file <arg>     Path to ES256 public key file.
+    --project_id <arg>             GCP cloud project name.
+    --pubsub_topic <arg>           Pub/Sub topic to create registry in.
+    --registry_name <arg>          Name for your Device Registry.
+    --rsa_certificate_file <arg>   Path to RS256 certificate file.
+
+https://cloud.google.com/iot-core
 
 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"
+
+## Usage Examples
+
+Create a PubSub topic, `hello-java`, for the project, `blue-jet-123`:
+
+    java -cp target/cloudiot-manager-demo-1.0-jar-with-dependencies.jar \
+        com.example.cloud.iot.examples.DeviceRegistryExample \
+        -project_id=blue-jet-123 -pubsub_topic=hello-java
+        -command=create-iot-topic
+
+Create an ES device:
+
+    java -cp target/cloudiot-manager-demo-1.0-jar-with-dependencies.jar \
+        com.example.cloud.iot.examples.DeviceRegistryExample \
+        -project_id=blue-jet-123 -pubsub_topic=hello-java \
+        -registry_name=hello-java -ec_public_key_file ../ec_public.pem \
+        -device_id="java-device-0" -command=create-es
+
+Create an RSA device:
+
+    java -cp target/cloudiot-manager-demo-1.0-jar-with-dependencies.jar \
+        com.example.cloud.iot.examples.DeviceRegistryExample \
+        -project_id=blue-jet-123 -pubsub_topic=hello-java \
+        -registry_name=hello-java -rsa_certificate_file ../rsa_cert.pem \
+        -device_id="java-device-1" -command=create-rsa
+
+Create a device without authorization:
+
+    java -cp target/cloudiot-manager-demo-1.0-jar-with-dependencies.jar \
+        com.example.cloud.iot.examples.DeviceRegistryExample \
+        -project_id=blue-jet-123 -pubsub_topic=hello-java \
+        -registry_name=hello-java -device_id="java-device-3" \
+        -command=create-unauth
+
+Create a device registry:
+
+    java -cp target/cloudiot-manager-demo-1.0-jar-with-dependencies.jar \
+        com.example.cloud.iot.examples.DeviceRegistryExample \
+        -project_id=blue-jet-123 -pubsub_topic=hello-java \
+        -registry_name=hello-java -command=create-registry \
+
+Get a device registry:
+
+    java -cp target/cloudiot-manager-demo-1.0-jar-with-dependencies.jar \
+        com.example.cloud.iot.examples.DeviceRegistryExample \
+        -project_id=blue-jet-123 -pubsub_topic=hello-java \
+        -registry_name=hello-java -command=get-registry
+
+List devices:
+
+    java -cp target/cloudiot-manager-demo-1.0-jar-with-dependencies.jar \
+        com.example.cloud.iot.examples.DeviceRegistryExample \
+        -project_id=blue-jet-123 -pubsub_topic=hello-java \
+        -registry_name=hello-java -command=list-devices
+
+List device registries:
+
+    java -cp target/cloudiot-manager-demo-1.0-jar-with-dependencies.jar \
+        com.example.cloud.iot.examples.DeviceRegistryExample \
+        -project_id=blue-jet-123 -pubsub_topic=hello-java \
+        -registry_name=hello-java -command=list-registries
+
+Patch a device with ES:
+
+    java -cp target/cloudiot-manager-demo-1.0-jar-with-dependencies.jar \
+        com.example.cloud.iot.examples.DeviceRegistryExample \
+        -project_id=blue-jet-123 -pubsub_topic=hello-java \
+        -registry_name=hello-java -ec_public_key_file ../ec_public.pem \
+        -device_id="java-device-1" -command=patch-device-es
+
+Patch a device with RSA:
+
+    java -cp target/cloudiot-manager-demo-1.0-jar-with-dependencies.jar \
+        com.example.cloud.iot.examples.DeviceRegistryExample \
+        -project_id=blue-jet-123 -pubsub_topic=hello-java \
+        -registry_name=hello-java -rsa_certificate_file ../rsa_cert.pem \
+        -device_id="java-device-0" -command=patch-device-rsa

iot/api-client/manager/pom.xml

@@ -42,6 +42,11 @@
       <artifactId>google-api-services-cloudiot</artifactId>
       <version>v1beta1-rev20170418-1.22.0-SNAPSHOT</version>
     </dependency>
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-pubsub</artifactId>
+      <version>0.21.1-beta</version>
+    </dependency>
     <dependency>
       <groupId>com.google.oauth-client</groupId>
       <artifactId>google-oauth-client</artifactId>
@@ -57,6 +62,20 @@
       <artifactId>commons-cli</artifactId>
       <version>1.3</version>
     </dependency>
+
+    <!-- Test dependencies -->
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <version>4.12</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.google.truth</groupId>
+      <artifactId>truth</artifactId>
+      <version>0.34</version>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>