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75 lines
2.9 KiB
Java
75 lines
2.9 KiB
Java
// Copyright 2016 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package com.google.domain.registry.bigquery;
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import com.google.api.services.bigquery.Bigquery;
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import com.google.api.services.bigquery.model.Dataset;
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import com.google.api.services.bigquery.model.DatasetReference;
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import com.google.api.services.bigquery.model.Table;
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import com.google.api.services.bigquery.model.TableFieldSchema;
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import com.google.api.services.bigquery.model.TableReference;
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import com.google.api.services.bigquery.model.TableSchema;
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import com.google.common.collect.ImmutableList;
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import com.google.domain.registry.util.FormattingLogger;
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import java.io.IOException;
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/** Helpers for Bigquery. */
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public class BigqueryHelper {
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private static final FormattingLogger logger = FormattingLogger.getLoggerForCallerClass();
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/**
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* Ensures the dataset exists by trying to create it. Note that it's not appreciably cheaper
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* to check for dataset existence than it is to try to create it and check for exceptions.
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*/
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// Note that these are not static so they can be mocked for testing.
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public void ensureDataset(Bigquery bigquery, String projectId, String datasetId)
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throws IOException {
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try {
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bigquery.datasets()
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.insert(projectId,
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new Dataset().setDatasetReference(
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new DatasetReference()
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.setProjectId(projectId)
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.setDatasetId(datasetId)))
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.execute();
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} catch (IOException e) {
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// Swallow errors about a duplicate dataset, and throw any other ones.
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if (!BigqueryJobFailureException.create(e).getReason().equals("duplicate")) {
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throw e;
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}
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}
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}
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/** Ensures the table exists in Bigquery. */
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public void ensureTable(Bigquery bigquery, TableReference table,
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ImmutableList<TableFieldSchema> schema) throws IOException {
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try {
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bigquery.tables().insert(table.getProjectId(), table.getDatasetId(), new Table()
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.setSchema(new TableSchema().setFields(schema))
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.setTableReference(table))
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.execute();
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logger.infofmt("Created BigQuery table %s:%s.%s", table.getProjectId(), table.getDatasetId(),
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table.getTableId());
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} catch (IOException e) {
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// Swallow errors about a table that exists, and throw any other ones.
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if (!BigqueryJobFailureException.create(e).getReason().equals("duplicate")) {
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throw e;
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}
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}
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}
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}
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