use of com.google.bigtable.admin.v2.ListTablesRequest in project java-bigtable by googleapis.
the class BigtableTableAdminClient method listTablesAsync.
/**
* Asynchronously lists all table IDs in the instance.
*
* <p>Sample code:
*
* <pre>{@code
* ApiFuture<List<String>> listFuture = client.listTables();
*
* ApiFutures.addCallback(
* listFuture,
* new ApiFutureCallback<List<String>>() {
* public void onSuccess(List<String> tableIds) {
* System.out.println("Got list of tables:");
* for (String tableId : tableIds) {
* System.out.println(tableId);
* }
* }
*
* public void onFailure(Throwable t) {
* t.printStackTrace();
* }
* },
* MoreExecutors.directExecutor()
* );
* }</pre>
*/
public ApiFuture<List<String>> listTablesAsync() {
ListTablesRequest request = ListTablesRequest.newBuilder().setParent(NameUtil.formatInstanceName(projectId, instanceId)).build();
// TODO(igorbernstein2): try to upstream pagination spooling or figure out a way to expose the
// paginated responses while maintaining the wrapper facade.
// Fetches the first page.
ApiFuture<ListTablesPage> firstPageFuture = ApiFutures.transform(stub.listTablesPagedCallable().futureCall(request), new ApiFunction<ListTablesPagedResponse, ListTablesPage>() {
@Override
public ListTablesPage apply(ListTablesPagedResponse response) {
return response.getPage();
}
}, MoreExecutors.directExecutor());
// Fetches the rest of the pages by chaining the futures.
ApiFuture<List<com.google.bigtable.admin.v2.Table>> allProtos = ApiFutures.transformAsync(firstPageFuture, new ApiAsyncFunction<ListTablesPage, List<com.google.bigtable.admin.v2.Table>>() {
List<com.google.bigtable.admin.v2.Table> responseAccumulator = Lists.newArrayList();
@Override
public ApiFuture<List<com.google.bigtable.admin.v2.Table>> apply(ListTablesPage page) {
// Add all entries from the page
responseAccumulator.addAll(Lists.newArrayList(page.getValues()));
// If this is the last page, just return the accumulated responses.
if (!page.hasNextPage()) {
return ApiFutures.immediateFuture(responseAccumulator);
}
// Otherwise fetch the next page.
return ApiFutures.transformAsync(page.getNextPageAsync(), this, MoreExecutors.directExecutor());
}
}, MoreExecutors.directExecutor());
// Wraps all of the accumulated protos.
return ApiFutures.transform(allProtos, new ApiFunction<List<com.google.bigtable.admin.v2.Table>, List<String>>() {
@Override
public List<String> apply(List<com.google.bigtable.admin.v2.Table> protos) {
List<String> results = Lists.newArrayListWithCapacity(protos.size());
for (com.google.bigtable.admin.v2.Table proto : protos) {
results.add(NameUtil.extractTableIdFromTableName(proto.getName()));
}
return results;
}
}, MoreExecutors.directExecutor());
}
use of com.google.bigtable.admin.v2.ListTablesRequest in project java-bigtable by googleapis.
the class BaseBigtableTableAdminClientTest method listTablesTest2.
@Test
public void listTablesTest2() throws Exception {
Table responsesElement = Table.newBuilder().build();
ListTablesResponse expectedResponse = ListTablesResponse.newBuilder().setNextPageToken("").addAllTables(Arrays.asList(responsesElement)).build();
mockBigtableTableAdmin.addResponse(expectedResponse);
String parent = "parent-995424086";
ListTablesPagedResponse pagedListResponse = client.listTables(parent);
List<Table> resources = Lists.newArrayList(pagedListResponse.iterateAll());
Assert.assertEquals(1, resources.size());
Assert.assertEquals(expectedResponse.getTablesList().get(0), resources.get(0));
List<AbstractMessage> actualRequests = mockBigtableTableAdmin.getRequests();
Assert.assertEquals(1, actualRequests.size());
ListTablesRequest actualRequest = ((ListTablesRequest) actualRequests.get(0));
Assert.assertEquals(parent, actualRequest.getParent());
Assert.assertTrue(channelProvider.isHeaderSent(ApiClientHeaderProvider.getDefaultApiClientHeaderKey(), GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
}
use of com.google.bigtable.admin.v2.ListTablesRequest in project java-bigtable by googleapis.
the class BaseBigtableTableAdminClientTest method listTablesTest.
@Test
public void listTablesTest() throws Exception {
Table responsesElement = Table.newBuilder().build();
ListTablesResponse expectedResponse = ListTablesResponse.newBuilder().setNextPageToken("").addAllTables(Arrays.asList(responsesElement)).build();
mockBigtableTableAdmin.addResponse(expectedResponse);
InstanceName parent = InstanceName.of("[PROJECT]", "[INSTANCE]");
ListTablesPagedResponse pagedListResponse = client.listTables(parent);
List<Table> resources = Lists.newArrayList(pagedListResponse.iterateAll());
Assert.assertEquals(1, resources.size());
Assert.assertEquals(expectedResponse.getTablesList().get(0), resources.get(0));
List<AbstractMessage> actualRequests = mockBigtableTableAdmin.getRequests();
Assert.assertEquals(1, actualRequests.size());
ListTablesRequest actualRequest = ((ListTablesRequest) actualRequests.get(0));
Assert.assertEquals(parent.toString(), actualRequest.getParent());
Assert.assertTrue(channelProvider.isHeaderSent(ApiClientHeaderProvider.getDefaultApiClientHeaderKey(), GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
}
use of com.google.bigtable.admin.v2.ListTablesRequest in project java-bigtable by googleapis.
the class BigtableTableAdminClientTest method testListTables.
@Test
public void testListTables() {
// Setup
Mockito.when(mockStub.listTablesPagedCallable()).thenReturn(mockListTableCallable);
com.google.bigtable.admin.v2.ListTablesRequest expectedRequest = com.google.bigtable.admin.v2.ListTablesRequest.newBuilder().setParent(INSTANCE_NAME).build();
// 3 Tables spread across 2 pages
List<com.google.bigtable.admin.v2.Table> expectedProtos = Lists.newArrayList();
for (int i = 0; i < 3; i++) {
expectedProtos.add(com.google.bigtable.admin.v2.Table.newBuilder().setName(TABLE_NAME + i).build());
}
// 2 on the first page
ListTablesPage page0 = Mockito.mock(ListTablesPage.class);
Mockito.when(page0.getValues()).thenReturn(expectedProtos.subList(0, 2));
Mockito.when(page0.hasNextPage()).thenReturn(true);
// 1 on the last page
ListTablesPage page1 = Mockito.mock(ListTablesPage.class);
Mockito.when(page1.getValues()).thenReturn(expectedProtos.subList(2, 3));
// Link page0 to page1
Mockito.when(page0.getNextPageAsync()).thenReturn(ApiFutures.immediateFuture(page1));
// Link page to the response
ListTablesPagedResponse response0 = Mockito.mock(ListTablesPagedResponse.class);
Mockito.when(response0.getPage()).thenReturn(page0);
Mockito.when(mockListTableCallable.futureCall(expectedRequest)).thenReturn(ApiFutures.immediateFuture(response0));
// Execute
List<String> actualResults = adminClient.listTables();
// Verify
List<String> expectedResults = Lists.newArrayList();
for (com.google.bigtable.admin.v2.Table expectedProto : expectedProtos) {
expectedResults.add(TableName.parse(expectedProto.getName()).getTable());
}
assertThat(actualResults).containsExactlyElementsIn(expectedResults);
}
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