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Adding QueryParameter support in BigQuery
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51 changes: 51 additions & 0 deletions
51
google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/LegacySQLTypeName.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,51 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
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| package com.google.cloud.bigquery; | ||
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| /** | ||
| * A type used in legacy SQL contexts. For example, these types are used in query results, | ||
| * even if the query is a standard SQL query. | ||
| */ | ||
| public enum LegacySQLTypeName { | ||
| /** Variable-length binary data. */ | ||
| BYTES(StandardSQLTypeName.BYTES), | ||
| /** Variable-length character (Unicode) data. */ | ||
| STRING(StandardSQLTypeName.STRING), | ||
| /** A 64-bit signed integer value. */ | ||
| INTEGER(StandardSQLTypeName.INT64), | ||
| /** A 64-bit IEEE binary floating-point value. */ | ||
| FLOAT(StandardSQLTypeName.FLOAT64), | ||
| /** A Boolean value (true or false). */ | ||
| BOOLEAN(StandardSQLTypeName.BOOL), | ||
| /** Represents an absolute point in time, with microsecond precision. */ | ||
| TIMESTAMP(StandardSQLTypeName.TIMESTAMP), | ||
| /** A record type with a nested schema. */ | ||
| RECORD(StandardSQLTypeName.STRUCT); | ||
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| private StandardSQLTypeName equivalent; | ||
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| LegacySQLTypeName(StandardSQLTypeName equivalent) { | ||
| this.equivalent = equivalent; | ||
| } | ||
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| /** | ||
| * Provides the standard SQL type name equivalent to this type name. | ||
| */ | ||
| public StandardSQLTypeName getStandardType() { | ||
| return equivalent; | ||
| } | ||
| } |
137 changes: 137 additions & 0 deletions
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google-cloud-bigquery/src/main/java/com/google/cloud/bigquery/QueryParameter.java
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| /* | ||
| * 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. | ||
| */ | ||
|
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| package com.google.cloud.bigquery; | ||
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| import static com.google.common.base.Preconditions.checkNotNull; | ||
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| import com.google.api.services.bigquery.Bigquery.Jobs.Query; | ||
| import com.google.cloud.bigquery.Field.Builder; | ||
| import com.google.cloud.bigquery.Field.Mode; | ||
| import com.google.cloud.bigquery.Field.Type; | ||
| import com.google.common.base.Function; | ||
| import com.google.common.base.MoreObjects; | ||
| import com.google.common.collect.ImmutableList; | ||
| import com.google.common.collect.Lists; | ||
| import java.io.Serializable; | ||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.List; | ||
| import java.util.Objects; | ||
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| /** | ||
| * A query parameter for a Google BigQuery query. | ||
| * | ||
| * <p>Each query parameter has a name and a typed value. The name is used for queries with named | ||
| * parameters, and should be null for queries with positional parameters. All scalar types are | ||
| * converted into strings before being passed to the server, but the nature of the conversion | ||
| * depends on the particular type. | ||
| * | ||
| * <p>See {@link QueryParameterValue} for more details on the supported types and how to provide | ||
| * them. | ||
| */ | ||
| public class QueryParameter implements Serializable { | ||
| static final Function<com.google.api.services.bigquery.model.QueryParameter, QueryParameter> | ||
| FROM_PB_FUNCTION = | ||
| new Function<com.google.api.services.bigquery.model.QueryParameter, QueryParameter>() { | ||
| @Override | ||
| public QueryParameter apply(com.google.api.services.bigquery.model.QueryParameter pb) { | ||
| return QueryParameter.fromPb(pb); | ||
| } | ||
| }; | ||
| static final Function<QueryParameter, com.google.api.services.bigquery.model.QueryParameter> | ||
| TO_PB_FUNCTION = | ||
| new Function<QueryParameter, com.google.api.services.bigquery.model.QueryParameter>() { | ||
| @Override | ||
| public com.google.api.services.bigquery.model.QueryParameter apply( | ||
| QueryParameter queryParameter) { | ||
| return queryParameter.toPb(); | ||
| } | ||
| }; | ||
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| private static final long serialVersionUID = -3106977352686037480L; | ||
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| private final String name; | ||
| private final QueryParameterValue parameterValue; | ||
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| private QueryParameter(String name, QueryParameterValue parameterValue) { | ||
| this.name = name; | ||
| this.parameterValue = checkNotNull(parameterValue); | ||
| } | ||
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| /** Returns the query parameter name. */ | ||
| public String getName() { | ||
| return name; | ||
| } | ||
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| /** Returns the typed query parameter value. */ | ||
| public QueryParameterValue getParameterValue() { | ||
| return parameterValue; | ||
| } | ||
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| /** | ||
| * Creates a positional {@code QueryParameter} object with the given value. | ||
| */ | ||
| public static QueryParameter of(QueryParameterValue value) { | ||
| return new QueryParameter(null, value); | ||
| } | ||
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| /** | ||
| * Creates a named {@code QueryParameter} object with the given value. | ||
| */ | ||
| public static QueryParameter named(String name, QueryParameterValue value) { | ||
| return new QueryParameter(name, value); | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return MoreObjects.toStringHelper(this) | ||
| .add("name", name) | ||
| .add("parameterValue", parameterValue) | ||
| .toString(); | ||
| } | ||
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hash(name, parameterValue); | ||
| } | ||
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| @Override | ||
| public boolean equals(Object obj) { | ||
| return obj instanceof QueryParameter && Objects.equals(toPb(), ((QueryParameter) obj).toPb()); | ||
| } | ||
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| com.google.api.services.bigquery.model.QueryParameter toPb() { | ||
| com.google.api.services.bigquery.model.QueryParameter queryParameterPb = | ||
| new com.google.api.services.bigquery.model.QueryParameter(); | ||
| queryParameterPb.setName(name); | ||
| if (parameterValue != null) { | ||
| queryParameterPb.setParameterValue(parameterValue.toValuePb()); | ||
| queryParameterPb.setParameterType(parameterValue.toTypePb()); | ||
| } | ||
| return queryParameterPb; | ||
| } | ||
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| static QueryParameter fromPb( | ||
| com.google.api.services.bigquery.model.QueryParameter queryParameterPb) { | ||
| checkNotNull(queryParameterPb.getParameterType()); | ||
| checkNotNull(queryParameterPb.getParameterValue()); | ||
| QueryParameterValue value = | ||
| QueryParameterValue.fromPb( | ||
| queryParameterPb.getParameterValue(), queryParameterPb.getParameterType()); | ||
| return named(queryParameterPb.getName(), value); | ||
| } | ||
| } |
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