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| 1 | +/* |
| 2 | + * Copyright 2015 Google Inc. All Rights Reserved. |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | + |
| 17 | +package com.google.gcloud.bigquery; |
| 18 | + |
| 19 | +import static com.google.common.base.Preconditions.checkNotNull; |
| 20 | + |
| 21 | +import com.google.api.services.bigquery.model.DatasetReference; |
| 22 | + |
| 23 | +import java.io.Serializable; |
| 24 | +import java.util.Objects; |
| 25 | + |
| 26 | +/** |
| 27 | + * Google BigQuery Dataset identity. |
| 28 | + */ |
| 29 | +public class DatasetId implements Serializable { |
| 30 | + |
| 31 | + private static final long serialVersionUID = -6186254820908152300L; |
| 32 | + |
| 33 | + private final String project; |
| 34 | + private final String dataset; |
| 35 | + |
| 36 | + /** |
| 37 | + * Returns project's user-defined id |
| 38 | + */ |
| 39 | + public String project() { |
| 40 | + return project; |
| 41 | + } |
| 42 | + |
| 43 | + /** |
| 44 | + * Returns dataset's user-defined id. |
| 45 | + */ |
| 46 | + public String dataset() { |
| 47 | + return dataset; |
| 48 | + } |
| 49 | + |
| 50 | + private DatasetId(String project, String dataset) { |
| 51 | + this.project = project; |
| 52 | + this.dataset = dataset; |
| 53 | + } |
| 54 | + |
| 55 | + /** |
| 56 | + * Creates a dataset identity given project's and dataset's user-defined ids. |
| 57 | + */ |
| 58 | + public static DatasetId of(String project, String dataset) { |
| 59 | + return new DatasetId(checkNotNull(project), checkNotNull(dataset)); |
| 60 | + } |
| 61 | + |
| 62 | + /** |
| 63 | + * Creates a dataset identity given only its user-defined id. |
| 64 | + */ |
| 65 | + public static DatasetId of(String dataset) { |
| 66 | + return new DatasetId(null, checkNotNull(dataset)); |
| 67 | + } |
| 68 | + |
| 69 | + @Override |
| 70 | + public boolean equals(Object obj) { |
| 71 | + return obj instanceof DatasetId && Objects.equals(toPb(), ((DatasetId) obj).toPb()); |
| 72 | + } |
| 73 | + |
| 74 | + @Override |
| 75 | + public int hashCode() { |
| 76 | + return Objects.hash(project, dataset); |
| 77 | + } |
| 78 | + |
| 79 | + @Override |
| 80 | + public String toString() { |
| 81 | + return toPb().toString(); |
| 82 | + } |
| 83 | + |
| 84 | + public DatasetReference toPb() { |
| 85 | + return new DatasetReference().setProjectId(project).setDatasetId(dataset); |
| 86 | + } |
| 87 | + |
| 88 | + public static DatasetId fromPb(DatasetReference datasetRef) { |
| 89 | + return new DatasetId( |
| 90 | + datasetRef.getProjectId(), |
| 91 | + datasetRef.getDatasetId()); |
| 92 | + } |
| 93 | +} |
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