You can test against a temporary local Resource Manager by following these steps:

1. Before running your testing code, start the Resource Manager emulator `LocalResourceManagerHelper`. This can be done as follows:

```java

import com.google.gcloud.resourcemanager.testing.LocalResourceManagerHelper;

LocalResourceManagerHelper helper = LocalResourceManagerHelper.create();

helper.start();

```

This will spawn a server thread that listens to `localhost` at an ephemeral port for Resource Manager requests.

2. In your program, create and use a Resource Manager service object whose host is set host to `localhost` at the appropriate port. For example:

```java

ResourceManager resourceManager = ResourceManagerOptions.builder()

.host("http://localhost:" + helper.port()).build().service();

```

3. Run your tests.

4. Stop the Resource Manager emulator.

```java

helper.stop();

```

This method will block a short amount of time until the server thread has been terminated.

You can test against a remote Resource Manager emulator as well. To do this, set the host to the hostname of the remote machine, like the example below.

```java

ResourceManager resourceManager = ResourceManagerOptions.builder()

.host("http://<hostname of machine>:<port>").build();

```

Note that the remote Resource Manager emulator must be running before your tests are run.

Unlike other `gcloud-java` service libraries, `gcloud-java-resourcemanager` only accepts Google Cloud SDK credentials at this time. If you are having trouble authenticating, it may be that you have other types of credentials that override your Google Cloud SDK credentials. See more about Google Cloud SDK credentials and credential precedence in the global README's [Authentication section](https://github.com/GoogleCloudPlatform/gcloud-java#authentication).

Google [Cloud Resource Manager][cloud-resourcemanager] provides a programmatic way to manage your Google Cloud Platform projects. With this API, you can do the following:

* Get a list of all projects associated with an account.

* Create new projects.

* Update existing projects.

* Delete projects.

* Undelete, or recover, projects that you don't want to delete.

Google Cloud Resource Manager is currently in beta and may occasionally make backwards incompatible changes.

Getting Started

You will also need to set up the local development environment by [installing the Google Cloud SDK](https://cloud.google.com/sdk/) and running the following commands in command line: `gcloud auth login`.

You'll need to obtain the `gcloud-java-resourcemanager` library. See the [Quickstart](#quickstart) section to add `gcloud-java-resourcemanager` as a dependency in your code.

To make authenticated requests to Google Cloud Resource Manager, you must create a service object with Google Cloud SDK credentials. You can then make API calls by calling methods on the Resource Manager service object. The simplest way to authenticate is to use [Application Default Credentials](https://developers.google.com/identity/protocols/application-default-credentials). These credentials are automatically inferred from your environment, so you only need the following code to create your service object:

import com.google.gcloud.resourcemanager.ResourceManager;

import com.google.gcloud.resourcemanager.ResourceManagerOptions;

ResourceManager resourceManager = ResourceManagerOptions.defaultInstance().service();

All you need to create a project is a globally unique project ID. You can also optionally attach a non-unique name and labels to your project. Read more about naming guidelines for project IDs, names, and labels [here](https://cloud.google.com/resource-manager/reference/rest/v1beta1/projects). To create a project, add the following imports at the top of your file:

import com.google.gcloud.resourcemanager.ProjectInfo;

Then add the following code to create a project (be sure to change `myProjectId` to be something unique).

String myProjectId = "my-globally-unique-project-id"; // Change to a unique project ID.

ProjectInfo myProject = resourceManager.create(ProjectInfo.builder(myProjectId).build());

Note that the return value from `create` is a `ProjectInfo` that includes additional read-only information, like creation time, project number, and lifecycle state. Read more about these fields on the [Projects page](https://cloud.google.com/resource-manager/reference/rest/v1beta1/projects).

You can load a project if you know it's project ID and have read permissions to the project. For example, say we wanted to get the project we just created. We can do the following:

ProjectInfo projectFromServer = resourceManager.get(myProjectId);

To edit a project, create a new `ProjectInfo` object and pass it in to the `ResourceManager.replace` method.

Suppose that you want to add a label for the newly created project to denote that it's launch status is "in development". Import the following:

import com.google.common.collect.ImmutableMap;

Then add the following code to your program:

ProjectInfo newProjectInfo = resourceManager.replace(projectFromServer.toBuilder()

.labels(ImmutableMap.of("launch-status", "in-development")).build());

Note that the values of the project you pass in to `replace` overwrite the server's values for non-read-only fields, namely `projectName` and `labels`. For example, if you create a project with `projectName` "some-project-name" and subsequently call replace using a `ProjectInfo` object that didn't set the `projectName`, then the server will unset the project's name. The server ignores any attempted changes to the read-only fields `projectNumber`, `lifecycleState`, and `createTime`. The `projectId` cannot change.

Suppose that we want list of all projects for which we have read permissions. Add the following import:

import java.util.Iterator;

Then add the following code to print a list of projects you can view:

Iterator<ProjectInfo> projectIterator = resourceManager.list().iterateAll();

System.out.println("Projects I can view:");

while (projectIterator.hasNext()) {

System.out.println(projectIterator.next().projectId());

}

Here we put together all the code shown above into one program. This program assumes that you are running from your own desktop.

import com.google.common.collect.ImmutableMap;

import com.google.gcloud.resourcemanager.ProjectInfo;

import com.google.gcloud.resourcemanager.ResourceManager;

import com.google.gcloud.resourcemanager.ResourceManagerOptions;

import java.util.Iterator;

public class GcloudJavaResourceManagerExample {

public static void main(String[] args) {

// Create Resource Manager service object.

// By default, credentials are inferred from the runtime environment.

ResourceManager resourceManager = ResourceManagerOptions.defaultInstance().service();

// Create a project.

String myProjectId = "my-globally-unique-project-id"; // Change to a unique project ID.

ProjectInfo myProject = resourceManager.create(ProjectInfo.builder(myProjectId).build());

// Get a project from the server.

ProjectInfo projectFromServer = resourceManager.get(myProjectId);

System.out.println("Got project " + projectFromServer.projectId() + " from the server."

+ System.lineSeparator());

// Update a project

ProjectInfo newProjectInfo = resourceManager.replace(projectFromServer.toBuilder()

.labels(ImmutableMap.of("launch-status", "in-development")).build());

System.out.println("Updated the labels of project " + newProjectInfo.projectId()

+ " to be " + newProjectInfo.labels() + System.lineSeparator());

// List all the projects you have permission to view.

Iterator<ProjectInfo> projectIterator = resourceManager.list().iterateAll();

System.out.println("Projects I can view:");

while (projectIterator.hasNext()) {

System.out.println(projectIterator.next().projectId());

}

}

}

Testing

This library has tools to help write tests for code that uses Resource Manager.

See [TESTING] to read more about testing.

<exclusions>

<exclusion>

<groupId>com.google.guava</groupId>

<artifactId>guava-jdk5</artifactId>

</exclusion>

</exclusions>

projectPb.setCreateTime(ISODateTimeFormat.dateTime().withZoneUTC().print(createTimeMillis));