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Merge pull request #502 from mziccard/bigquery
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Merge master into bigquery and add BigQuery to README and TESTING
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mziccard committed Dec 22, 2015
2 parents a0f5f1b + 7b1b0dc commit a1299c7
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85 changes: 85 additions & 0 deletions README.md
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Expand Up @@ -14,6 +14,8 @@ This client supports the following Google Cloud Platform services:

- [Google Cloud Datastore] (#google-cloud-datastore)
- [Google Cloud Storage] (#google-cloud-storage)
- [Google Cloud Resource Manager] (#google-cloud-resource-manager)
- [Google Cloud BigQuery] (#google-cloud-bigquery)

> Note: This client is a work-in-progress, and may occasionally
> make backwards-incompatible changes.
Expand Down Expand Up @@ -182,6 +184,82 @@ if (blob == null) {
}
```
Google Cloud Resource Manager
----------------------
- [API Documentation][resourcemanager-api]
- [Official Documentation][cloud-resourcemanager-docs]
#### Preview
Here is a code snippet showing a simple usage example. Note that you must supply Google SDK credentials for this service, not other forms of authentication listed in the [Authentication section](#authentication).
```java
import com.google.gcloud.resourcemanager.ProjectInfo;
import com.google.gcloud.resourcemanager.ResourceManager;
import com.google.gcloud.resourcemanager.ResourceManagerOptions;
import java.util.Iterator;
ResourceManager resourceManager = ResourceManagerOptions.defaultInstance().service();
ProjectInfo myProject = resourceManager.get("some-project-id"); // Use an existing project's ID
ProjectInfo newProjectInfo = resourceManager.replace(myProject.toBuilder()
.addLabel("launch-status", "in-development").build());
System.out.println("Updated the labels of project " + newProjectInfo.projectId()
+ " to be " + newProjectInfo.labels());
// 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());
}
```

Google Cloud BigQuery
----------------------

- [API Documentation][bigquery-api]
- [Official Documentation][cloud-bigquery-docs]

#### Preview

Here is a code snippet showing a simple usage example from within Compute/App Engine. Note that you
must [supply credentials](#authentication) and a project ID if running this snippet elsewhere.

```java
import com.google.gcloud.bigquery.BaseTableInfo;
import com.google.gcloud.bigquery.BigQuery;
import com.google.gcloud.bigquery.BigQueryOptions;
import com.google.gcloud.bigquery.Field;
import com.google.gcloud.bigquery.JobStatus;
import com.google.gcloud.bigquery.LoadJobInfo;
import com.google.gcloud.bigquery.Schema;
import com.google.gcloud.bigquery.TableId;
import com.google.gcloud.bigquery.TableInfo;

BigQuery bigquery = BigQueryOptions.defaultInstance().service();
TableId tableId = TableId.of("dataset", "table");
BaseTableInfo info = bigquery.getTable(tableId);
if (info == null) {
System.out.println("Creating table " + tableId);
Field integerField = Field.of("fieldName", Field.Type.integer());
bigquery.create(TableInfo.of(tableId, Schema.of(integerField)));
} else {
System.out.println("Loading data into table " + tableId);
LoadJobInfo loadJob = LoadJobInfo.of(tableId, "gs://bucket/path");
loadJob = bigquery.create(loadJob);
while (loadJob.status().state() != JobStatus.State.DONE) {
Thread.sleep(1000L);
loadJob = bigquery.getJob(loadJob.jobId());
}
if (loadJob.status().error() != null) {
System.out.println("Job completed with errors");
} else {
System.out.println("Job succeeded");
}
}
```

Troubleshooting
---------------

Expand Down Expand Up @@ -241,3 +319,10 @@ Apache 2.0 - See [LICENSE] for more information.
[cloud-storage-create-bucket]: https://cloud.google.com/storage/docs/cloud-console#_creatingbuckets
[cloud-storage-activation]: https://cloud.google.com/storage/docs/signup
[storage-api]: http://googlecloudplatform.github.io/gcloud-java/apidocs/index.html?com/google/gcloud/storage/package-summary.html
[resourcemanager-api]:http://googlecloudplatform.github.io/gcloud-java/apidocs/index.html?com/google/gcloud/resourcemanager/package-summary.html
[cloud-resourcemanager-docs]:https://cloud.google.com/resource-manager/
[cloud-bigquery]: https://cloud.google.com/bigquery/
[cloud-bigquery-docs]: https://cloud.google.com/bigquery/docs/overview
[bigquery-api]: http://googlecloudplatform.github.io/gcloud-java/apidocs/index.html?com/google/gcloud/bigquery/package-summary.html
72 changes: 70 additions & 2 deletions TESTING.md
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@@ -1,6 +1,11 @@
## gcloud-java tools for testing

This library provides tools to help write tests for code that uses gcloud-java services.
This library provides tools to help write tests for code that uses the following gcloud-java services:

- [Datastore] (#testing-code-that-uses-datastore)
- [Storage] (#testing-code-that-uses-storage)
- [Resource Manager] (#testing-code-that-uses-resource-manager)
- [BigQuery] (#testing-code-that-uses-bigquery)

### Testing code that uses Datastore

Expand Down Expand Up @@ -51,7 +56,8 @@ Currently, there isn't an emulator for Google Cloud Storage, so an alternative i
3. Create a `RemoteGcsHelper` object using your project ID and JSON key.
Here is an example that uses the `RemoteGcsHelper` to create a bucket.
```java
RemoteGcsHelper gcsHelper = RemoteGcsHelper.create(PROJECT_ID, "/path/to/my/JSON/key.json");
RemoteGcsHelper gcsHelper =
RemoteGcsHelper.create(PROJECT_ID, new FileInputStream("/path/to/my/JSON/key.json"));
Storage storage = gcsHelper.options().service();
String bucket = RemoteGcsHelper.generateBucketName();
storage.create(BucketInfo.of(bucket));
Expand All @@ -65,5 +71,67 @@ Here is an example that clears the bucket created in Step 3 with a timeout of 5
RemoteGcsHelper.forceDelete(storage, bucket, 5, TimeUnit.SECONDS);
```

### Testing code that uses Resource Manager

#### On your machine

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 to `localhost` at the appropriate port. For example:

```java
ResourceManager resourceManager = LocalResourceManagerHelper.options().service();
```

3. Run your tests.

4. Stop the Resource Manager emulator.

```java
helper.stop();
```

This method will block until the server thread has been terminated.

### Testing code that uses BigQuery

Currently, there isn't an emulator for Google BigQuery, so an alternative is to create a test
project. `RemoteBigQueryHelper` contains convenience methods to make setting up and cleaning up the
test project easier. To use this class, follow the steps below:
1. Create a test Google Cloud project.
2. Download a [JSON service account credentials file][create-service-account] from the Google
Developer's Console.

3. Create a `RemoteBigQueryHelper` object using your project ID and JSON key.
Here is an example that uses the `RemoteBigQueryHelper` to create a dataset.
```java
RemoteBigQueryHelper bigqueryHelper =
RemoteBigQueryHelper.create(PROJECT_ID, new FileInputStream("/path/to/my/JSON/key.json"));
BigQuery bigquery = bigqueryHelper.options().service();
String dataset = RemoteBigQueryHelper.generateDatasetName();
bigquery.create(DatasetInfo.builder(dataset).build());
```

4. Run your tests.

5. Clean up the test project by using `forceDelete` to clear any datasets used.
Here is an example that clears the dataset created in Step 3.
```java
RemoteBigQueryHelper.forceDelete(bigquery, dataset);
```

[cloud-platform-storage-authentication]:https://cloud.google.com/storage/docs/authentication?hl=en#service_accounts
[create-service-account]:https://developers.google.com/identity/protocols/OAuth2ServiceAccount#creatinganaccount
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Expand Up @@ -199,7 +199,7 @@ protected DatastoreException newInvalidRequest(String msg, Object... params) {
return DatastoreException.throwInvalidRequest(String.format(msg, params));
}

protected DatastoreV1.Mutation.Builder toMutationPb() {
DatastoreV1.Mutation.Builder toMutationPb() {
DatastoreV1.Mutation.Builder mutationPb = DatastoreV1.Mutation.newBuilder();
for (FullEntity<IncompleteKey> entity : toAddAutoId()) {
mutationPb.addInsertAutoId(entity.toPb());
Expand Down
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Expand Up @@ -90,7 +90,7 @@ private B self() {
}

@SuppressWarnings("unchecked")
protected B fill(DatastoreV1.Entity entityPb) {
B fill(DatastoreV1.Entity entityPb) {
Map<String, Value<?>> copiedProperties = Maps.newHashMap();
for (DatastoreV1.Property property : entityPb.getPropertyList()) {
copiedProperties.put(property.getName(), Value.fromPb(property.getValue()));
Expand Down Expand Up @@ -375,7 +375,7 @@ ImmutableSortedMap<String, Value<?>> properties() {
}

@Override
protected Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
Builder<?, ?> builder = emptyBuilder();
builder.fill(DatastoreV1.Entity.parseFrom(bytesPb));
return builder.build();
Expand All @@ -384,7 +384,7 @@ protected Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
protected abstract Builder<?, ?> emptyBuilder();

@Override
protected final DatastoreV1.Entity toPb() {
final DatastoreV1.Entity toPb() {
DatastoreV1.Entity.Builder entityPb = DatastoreV1.Entity.newBuilder();
for (Map.Entry<String, Value<?>> entry : properties.entrySet()) {
DatastoreV1.Property.Builder propertyPb = DatastoreV1.Property.newBuilder();
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Expand Up @@ -172,7 +172,7 @@ public boolean equals(Object obj) {
}

@Override
protected DatastoreV1.Key toPb() {
DatastoreV1.Key toPb() {
DatastoreV1.Key.Builder keyPb = DatastoreV1.Key.newBuilder();
DatastoreV1.PartitionId.Builder partitionIdPb = DatastoreV1.PartitionId.newBuilder();
if (projectId != null) {
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Expand Up @@ -147,12 +147,12 @@ public static Blob copyFrom(InputStream input) throws IOException {
}

@Override
protected Value toPb() {
Value toPb() {
return DatastoreV1.Value.newBuilder().setBlobValue(byteString).build();
}

@Override
protected Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
return new Blob(DatastoreV1.Value.parseFrom(bytesPb).getBlobValue());
}
}
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Expand Up @@ -102,12 +102,12 @@ public static Cursor copyFrom(byte[] bytes) {
}

@Override
protected Value toPb() {
Value toPb() {
return DatastoreV1.Value.newBuilder().setBlobValue(byteString).build();
}

@Override
protected Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
return fromPb(DatastoreV1.Value.parseFrom(bytesPb));
}

Expand Down
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Expand Up @@ -98,12 +98,12 @@ public static DateTime copyFrom(Calendar calendar) {
}

@Override
protected Value toPb() {
Value toPb() {
return DatastoreV1.Value.newBuilder().setIntegerValue(timestampMicroseconds).build();
}

@Override
protected Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
return new DateTime(DatastoreV1.Value.parseFrom(bytesPb).getIntegerValue());
}
}
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Expand Up @@ -126,7 +126,7 @@ public boolean equals(Object obj) {
}

@Override
protected DatastoreV1.GqlQueryArg toPb() {
DatastoreV1.GqlQueryArg toPb() {
DatastoreV1.GqlQueryArg.Builder argPb = DatastoreV1.GqlQueryArg.newBuilder();
if (name != null) {
argPb.setName(name);
Expand All @@ -141,7 +141,7 @@ protected DatastoreV1.GqlQueryArg toPb() {
}

@Override
protected Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
return fromPb(DatastoreV1.GqlQueryArg.parseFrom(bytesPb));
}

Expand Down Expand Up @@ -370,7 +370,7 @@ public boolean equals(Object obj) {
}

@Override
protected DatastoreV1.GqlQuery toPb() {
DatastoreV1.GqlQuery toPb() {
DatastoreV1.GqlQuery.Builder queryPb = DatastoreV1.GqlQuery.newBuilder();
queryPb.setQueryString(queryString);
queryPb.setAllowLiteral(allowLiteral);
Expand All @@ -384,18 +384,18 @@ protected DatastoreV1.GqlQuery toPb() {
}

@Override
protected void populatePb(DatastoreV1.RunQueryRequest.Builder requestPb) {
void populatePb(DatastoreV1.RunQueryRequest.Builder requestPb) {
requestPb.setGqlQuery(toPb());
}

@Override
protected GqlQuery<V> nextQuery(DatastoreV1.QueryResultBatch responsePb) {
GqlQuery<V> nextQuery(DatastoreV1.QueryResultBatch responsePb) {
// See issue #17
throw new UnsupportedOperationException("paging for this query is not implemented yet");
}

@Override
protected Object fromPb(ResultType<V> resultType, String namespace, byte[] bytesPb)
Object fromPb(ResultType<V> resultType, String namespace, byte[] bytesPb)
throws InvalidProtocolBufferException {
return fromPb(resultType, namespace, DatastoreV1.GqlQuery.parseFrom(bytesPb));
}
Expand Down
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Expand Up @@ -54,7 +54,7 @@ public IncompleteKey build() {
}

@Override
protected Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
return fromPb(DatastoreV1.Key.parseFrom(bytesPb));
}

Expand Down
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Expand Up @@ -164,7 +164,7 @@ public static Key fromUrlSafe(String urlSafe) {
}

@Override
protected Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
return fromPb(DatastoreV1.Key.parseFrom(bytesPb));
}

Expand Down
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Expand Up @@ -86,7 +86,7 @@ public boolean equals(Object obj) {
}

@Override
protected DatastoreV1.Key.PathElement toPb() {
DatastoreV1.Key.PathElement toPb() {
DatastoreV1.Key.PathElement.Builder pathElementPb = DatastoreV1.Key.PathElement.newBuilder();
pathElementPb.setKind(kind);
if (id != null) {
Expand All @@ -98,7 +98,7 @@ protected DatastoreV1.Key.PathElement toPb() {
}

@Override
protected Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
Object fromPb(byte[] bytesPb) throws InvalidProtocolBufferException {
return fromPb(DatastoreV1.Key.PathElement.parseFrom(bytesPb));
}

Expand Down
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