Examples with Datastore com.google.datastore.v1.client.Datastore used on opensource projects

Example 16 with Datastore

use of com.google.datastore.v1.client.Datastore in project beam by apache.

the class DatastoreV1Test method testAddEntitiesWithIncompleteKeys.

/**
   * Test that entities with incomplete keys cannot be updated.
   */
@Test
public void testAddEntitiesWithIncompleteKeys() throws Exception {
    Key key = makeKey("bird").build();
    Entity entity = Entity.newBuilder().setKey(key).build();
    UpsertFn upsertFn = new UpsertFn();
    thrown.expect(IllegalArgumentException.class);
    thrown.expectMessage("Entities to be written to the Cloud Datastore must have complete keys");
    upsertFn.apply(entity);
}

Example 17 with Datastore

use of com.google.datastore.v1.client.Datastore in project beam by apache.

the class V1ReadIT method writeEntitiesToDatastore.

// Creates entities and write them to datastore
private static void writeEntitiesToDatastore(V1TestOptions options, String project, String ancestor, long numEntities) throws Exception {
    Datastore datastore = getDatastore(options, project);
    // Write test entities to datastore
    V1TestWriter writer = new V1TestWriter(datastore, new UpsertMutationBuilder());
    Key ancestorKey = makeAncestorKey(options.getNamespace(), options.getKind(), ancestor);
    for (long i = 0; i < numEntities; i++) {
        Entity entity = makeEntity(i, ancestorKey, options.getKind(), options.getNamespace(), 0);
        writer.write(entity);
    }
    writer.close();
}

Example 18 with Datastore

use of com.google.datastore.v1.client.Datastore in project beam by apache.

the class V1TestUtil method countEntities.

/**
   * Returns the total number of entities for the given datastore.
   */
static long countEntities(V1TestOptions options, String project, String ancestor) throws Exception {
    // Read from datastore.
    Datastore datastore = V1TestUtil.getDatastore(options, project);
    Query query = V1TestUtil.makeAncestorKindQuery(options.getKind(), options.getNamespace(), ancestor);
    V1TestReader reader = new V1TestReader(datastore, query, options.getNamespace());
    long numEntitiesRead = 0;
    while (reader.advance()) {
        reader.getCurrent();
        numEntitiesRead++;
    }
    return numEntitiesRead;
}

Example 19 with Datastore

use of com.google.datastore.v1.client.Datastore in project beam by apache.

the class V1TestUtil method deleteAllEntities.

/**
   * Delete all entities with the given ancestor.
   */
static void deleteAllEntities(V1TestOptions options, String project, String ancestor) throws Exception {
    Datastore datastore = getDatastore(options, project);
    Query query = V1TestUtil.makeAncestorKindQuery(options.getKind(), options.getNamespace(), ancestor);
    V1TestReader reader = new V1TestReader(datastore, query, options.getNamespace());
    V1TestWriter writer = new V1TestWriter(datastore, new DeleteMutationBuilder());
    long numEntities = 0;
    while (reader.advance()) {
        Entity entity = reader.getCurrent();
        numEntities++;
        writer.write(entity);
    }
    writer.close();
    LOG.info("Successfully deleted {} entities", numEntities);
}

Example 20 with Datastore

use of com.google.datastore.v1.client.Datastore in project beam by apache.

the class DatastoreV1Test method testDeleteIncompleteKeys.

/**
   * Test that incomplete keys cannot be deleted.
   */
@Test
public void testDeleteIncompleteKeys() throws Exception {
    Key key = makeKey("bird").build();
    DeleteKeyFn deleteKeyFn = new DeleteKeyFn();
    thrown.expect(IllegalArgumentException.class);
    thrown.expectMessage("Keys to be deleted from the Cloud Datastore must be complete");
    deleteKeyFn.apply(key);
}