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Java idiomatic client for Google Cloud BigQuery.
/*
* Copyright 2015 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.cloud.bigquery.spi;
import static com.google.cloud.bigquery.spi.BigQueryRpc.Option.ALL_DATASETS;
import static com.google.cloud.bigquery.spi.BigQueryRpc.Option.ALL_USERS;
import static com.google.cloud.bigquery.spi.BigQueryRpc.Option.DELETE_CONTENTS;
import static com.google.cloud.bigquery.spi.BigQueryRpc.Option.FIELDS;
import static com.google.cloud.bigquery.spi.BigQueryRpc.Option.MAX_RESULTS;
import static com.google.cloud.bigquery.spi.BigQueryRpc.Option.PAGE_TOKEN;
import static com.google.cloud.bigquery.spi.BigQueryRpc.Option.START_INDEX;
import static com.google.cloud.bigquery.spi.BigQueryRpc.Option.STATE_FILTER;
import static com.google.cloud.bigquery.spi.BigQueryRpc.Option.TIMEOUT;
import static java.net.HttpURLConnection.HTTP_CREATED;
import static java.net.HttpURLConnection.HTTP_NOT_FOUND;
import static java.net.HttpURLConnection.HTTP_OK;
import com.google.api.client.http.ByteArrayContent;
import com.google.api.client.http.GenericUrl;
import com.google.api.client.http.HttpRequest;
import com.google.api.client.http.HttpRequestFactory;
import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.HttpResponse;
import com.google.api.client.http.HttpResponseException;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.json.JsonHttpContent;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson.JacksonFactory;
import com.google.api.services.bigquery.Bigquery;
import com.google.api.services.bigquery.model.Dataset;
import com.google.api.services.bigquery.model.DatasetList;
import com.google.api.services.bigquery.model.DatasetReference;
import com.google.api.services.bigquery.model.GetQueryResultsResponse;
import com.google.api.services.bigquery.model.Job;
import com.google.api.services.bigquery.model.JobConfiguration;
import com.google.api.services.bigquery.model.JobList;
import com.google.api.services.bigquery.model.JobStatus;
import com.google.api.services.bigquery.model.QueryRequest;
import com.google.api.services.bigquery.model.QueryResponse;
import com.google.api.services.bigquery.model.Table;
import com.google.api.services.bigquery.model.TableDataInsertAllRequest;
import com.google.api.services.bigquery.model.TableDataInsertAllResponse;
import com.google.api.services.bigquery.model.TableDataList;
import com.google.api.services.bigquery.model.TableList;
import com.google.api.services.bigquery.model.TableReference;
import com.google.api.services.bigquery.model.TableRow;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.common.base.Function;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import java.io.IOException;
import java.math.BigInteger;
import java.util.List;
import java.util.Map;
public class DefaultBigQueryRpc implements BigQueryRpc {
public static final String DEFAULT_PROJECTION = "full";
private static final String BASE_RESUMABLE_URI =
"https://www.googleapis.com/upload/bigquery/v2/projects/";
// see: https://cloud.google.com/bigquery/loading-data-post-request#resume-upload
private static final int HTTP_RESUME_INCOMPLETE = 308;
private final BigQueryOptions options;
private final Bigquery bigquery;
public DefaultBigQueryRpc(BigQueryOptions options) {
HttpTransport transport = options.httpTransportFactory().create();
HttpRequestInitializer initializer = options.httpRequestInitializer();
this.options = options;
bigquery = new Bigquery.Builder(transport, new JacksonFactory(), initializer)
.setRootUrl(options.host())
.setApplicationName(options.applicationName())
.build();
}
private static BigQueryException translate(IOException exception) {
return new BigQueryException(exception);
}
@Override
public Dataset getDataset(String datasetId, Map options) {
try {
return bigquery.datasets()
.get(this.options.projectId(), datasetId)
.setFields(FIELDS.getString(options))
.execute();
} catch (IOException ex) {
BigQueryException serviceException = translate(ex);
if (serviceException.code() == HTTP_NOT_FOUND) {
return null;
}
throw serviceException;
}
}
@Override
public Tuple> listDatasets(Map options) {
try {
DatasetList datasetsList = bigquery.datasets()
.list(this.options.projectId())
.setAll(ALL_DATASETS.getBoolean(options))
.setMaxResults(MAX_RESULTS.getLong(options))
.setPageToken(PAGE_TOKEN.getString(options))
.setPageToken(PAGE_TOKEN.getString(options))
.execute();
Iterable datasets = datasetsList.getDatasets();
return Tuple.of(datasetsList.getNextPageToken(),
Iterables.transform(datasets != null ? datasets
: ImmutableList.of(),
new Function() {
@Override
public Dataset apply(DatasetList.Datasets datasetPb) {
return new Dataset()
.setDatasetReference(datasetPb.getDatasetReference())
.setFriendlyName(datasetPb.getFriendlyName())
.setId(datasetPb.getId())
.setKind(datasetPb.getKind());
}
}));
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public Dataset create(Dataset dataset, Map options) {
try {
return bigquery.datasets().insert(this.options.projectId(), dataset)
.setFields(FIELDS.getString(options))
.execute();
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public Table create(Table table, Map options) {
try {
// unset the type, as it is output only
table.setType(null);
return bigquery.tables()
.insert(this.options.projectId(), table.getTableReference().getDatasetId(), table)
.setFields(FIELDS.getString(options))
.execute();
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public Job create(Job job, Map options) {
try {
return bigquery.jobs()
.insert(this.options.projectId(), job)
.setFields(FIELDS.getString(options))
.execute();
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public boolean deleteDataset(String datasetId, Map options) {
try {
bigquery.datasets().delete(this.options.projectId(), datasetId)
.setDeleteContents(DELETE_CONTENTS.getBoolean(options))
.execute();
return true;
} catch (IOException ex) {
BigQueryException serviceException = translate(ex);
if (serviceException.code() == HTTP_NOT_FOUND) {
return false;
}
throw serviceException;
}
}
@Override
public Dataset patch(Dataset dataset, Map options) {
try {
DatasetReference reference = dataset.getDatasetReference();
return bigquery.datasets()
.patch(this.options.projectId(), reference.getDatasetId(), dataset)
.setFields(FIELDS.getString(options))
.execute();
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public Table patch(Table table, Map options) {
try {
// unset the type, as it is output only
table.setType(null);
TableReference reference = table.getTableReference();
return bigquery.tables()
.patch(this.options.projectId(), reference.getDatasetId(), reference.getTableId(), table)
.setFields(FIELDS.getString(options))
.execute();
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public Table getTable(String datasetId, String tableId, Map options) {
try {
return bigquery.tables()
.get(this.options.projectId(), datasetId, tableId)
.setFields(FIELDS.getString(options))
.execute();
} catch (IOException ex) {
BigQueryException serviceException = translate(ex);
if (serviceException.code() == HTTP_NOT_FOUND) {
return null;
}
throw serviceException;
}
}
@Override
public Tuple> listTables(String datasetId, Map options) {
try {
TableList tableList = bigquery.tables()
.list(this.options.projectId(), datasetId)
.setMaxResults(MAX_RESULTS.getLong(options))
.setPageToken(PAGE_TOKEN.getString(options))
.execute();
Iterable tables = tableList.getTables();
return Tuple.of(tableList.getNextPageToken(),
Iterables.transform(tables != null ? tables : ImmutableList.of(),
new Function() {
@Override
public Table apply(TableList.Tables tablePb) {
return new Table()
.setFriendlyName(tablePb.getFriendlyName())
.setId(tablePb.getId())
.setKind(tablePb.getKind())
.setTableReference(tablePb.getTableReference())
.setType(tablePb.getType());
}
}));
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public boolean deleteTable(String datasetId, String tableId) {
try {
bigquery.tables().delete(this.options.projectId(), datasetId, tableId).execute();
return true;
} catch (IOException ex) {
BigQueryException serviceException = translate(ex);
if (serviceException.code() == HTTP_NOT_FOUND) {
return false;
}
throw serviceException;
}
}
@Override
public TableDataInsertAllResponse insertAll(String datasetId, String tableId,
TableDataInsertAllRequest request) {
try {
return bigquery.tabledata()
.insertAll(this.options.projectId(), datasetId, tableId, request)
.execute();
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public Tuple> listTableData(String datasetId, String tableId,
Map options) {
try {
TableDataList tableDataList = bigquery.tabledata()
.list(this.options.projectId(), datasetId, tableId)
.setMaxResults(MAX_RESULTS.getLong(options))
.setPageToken(PAGE_TOKEN.getString(options))
.setStartIndex(START_INDEX.getLong(options) != null
? BigInteger.valueOf(START_INDEX.getLong(options)) : null)
.execute();
return Tuple.>of(tableDataList.getPageToken(),
tableDataList.getRows());
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public Job getJob(String jobId, Map options) {
try {
return bigquery.jobs()
.get(this.options.projectId(), jobId)
.setFields(FIELDS.getString(options))
.execute();
} catch (IOException ex) {
BigQueryException serviceException = translate(ex);
if (serviceException.code() == HTTP_NOT_FOUND) {
return null;
}
throw serviceException;
}
}
@Override
public Tuple> listJobs(Map options) {
try {
JobList jobsList = bigquery.jobs()
.list(this.options.projectId())
.setAllUsers(ALL_USERS.getBoolean(options))
.setFields(FIELDS.getString(options))
.setStateFilter(STATE_FILTER.>get(options))
.setMaxResults(MAX_RESULTS.getLong(options))
.setPageToken(PAGE_TOKEN.getString(options))
.setProjection(DEFAULT_PROJECTION)
.execute();
Iterable jobs = jobsList.getJobs();
return Tuple.of(jobsList.getNextPageToken(),
Iterables.transform(jobs != null ? jobs : ImmutableList.of(),
new Function() {
@Override
public Job apply(JobList.Jobs jobPb) {
JobStatus statusPb = jobPb.getStatus() != null
? jobPb.getStatus() : new JobStatus();
if (statusPb.getState() == null) {
statusPb.setState(jobPb.getState());
}
if (statusPb.getErrorResult() == null) {
statusPb.setErrorResult(jobPb.getErrorResult());
}
return new Job()
.setConfiguration(jobPb.getConfiguration())
.setId(jobPb.getId())
.setJobReference(jobPb.getJobReference())
.setKind(jobPb.getKind())
.setStatistics(jobPb.getStatistics())
.setStatus(statusPb)
.setUserEmail(jobPb.getUserEmail());
}
}));
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public boolean cancel(String jobId) {
try {
bigquery.jobs().cancel(this.options.projectId(), jobId).execute();
return true;
} catch (IOException ex) {
BigQueryException serviceException = translate(ex);
if (serviceException.code() == HTTP_NOT_FOUND) {
return false;
}
throw serviceException;
}
}
@Override
public GetQueryResultsResponse getQueryResults(String jobId, Map options) {
try {
return bigquery.jobs().getQueryResults(this.options.projectId(), jobId)
.setMaxResults(MAX_RESULTS.getLong(options))
.setPageToken(PAGE_TOKEN.getString(options))
.setStartIndex(START_INDEX.getLong(options) != null
? BigInteger.valueOf(START_INDEX.getLong(options)) : null)
.setTimeoutMs(TIMEOUT.getLong(options))
.execute();
} catch (IOException ex) {
BigQueryException serviceException = translate(ex);
if (serviceException.code() == HTTP_NOT_FOUND) {
return null;
}
throw serviceException;
}
}
@Override
public QueryResponse query(QueryRequest request) {
try {
return bigquery.jobs().query(this.options.projectId(), request).execute();
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public String open(JobConfiguration configuration) {
try {
Job loadJob = new Job().setConfiguration(configuration);
StringBuilder builder = new StringBuilder()
.append(BASE_RESUMABLE_URI)
.append(options.projectId())
.append("/jobs");
GenericUrl url = new GenericUrl(builder.toString());
url.set("uploadType", "resumable");
JsonFactory jsonFactory = bigquery.getJsonFactory();
HttpRequestFactory requestFactory = bigquery.getRequestFactory();
HttpRequest httpRequest =
requestFactory.buildPostRequest(url, new JsonHttpContent(jsonFactory, loadJob));
httpRequest.getHeaders().set("X-Upload-Content-Value", "application/octet-stream");
HttpResponse response = httpRequest.execute();
return response.getHeaders().getLocation();
} catch (IOException ex) {
throw translate(ex);
}
}
@Override
public void write(String uploadId, byte[] toWrite, int toWriteOffset, long destOffset, int length,
boolean last) {
try {
GenericUrl url = new GenericUrl(uploadId);
HttpRequest httpRequest = bigquery.getRequestFactory().buildPutRequest(url,
new ByteArrayContent(null, toWrite, toWriteOffset, length));
long limit = destOffset + length;
StringBuilder range = new StringBuilder("bytes ");
range.append(destOffset).append('-').append(limit - 1).append('/');
if (last) {
range.append(limit);
} else {
range.append('*');
}
httpRequest.getHeaders().setContentRange(range.toString());
int code;
String message;
IOException exception = null;
try {
HttpResponse response = httpRequest.execute();
code = response.getStatusCode();
message = response.getStatusMessage();
} catch (HttpResponseException ex) {
exception = ex;
code = ex.getStatusCode();
message = ex.getStatusMessage();
}
if (!last && code != HTTP_RESUME_INCOMPLETE
|| last && !(code == HTTP_OK || code == HTTP_CREATED)) {
if (exception != null) {
throw exception;
}
throw new BigQueryException(code, message);
}
} catch (IOException ex) {
throw translate(ex);
}
}
}
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