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samples: add new sample bigquery_query_params_structs (#204)
* samples: add new sample bigquery_query_params_structs * update sample * inline boolean val Co-Authored-By: Kurtis Van Gent <31518063+kurtisvg@users.noreply.github.com> * inline vars Co-authored-by: Kurtis Van Gent <31518063+kurtisvg@users.noreply.github.com>
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samples/snippets/src/main/java/com/example/bigquery/QueryWithStructsParameters.java
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/* | ||
* Copyright 2020 Google LLC | ||
* | ||
* 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.example.bigquery; | ||
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// [START bigquery_query_params_structs] | ||
import com.google.cloud.bigquery.BigQuery; | ||
import com.google.cloud.bigquery.BigQueryException; | ||
import com.google.cloud.bigquery.BigQueryOptions; | ||
import com.google.cloud.bigquery.QueryJobConfiguration; | ||
import com.google.cloud.bigquery.QueryParameterValue; | ||
import com.google.cloud.bigquery.TableResult; | ||
import java.util.HashMap; | ||
import java.util.Map; | ||
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public class QueryWithStructsParameters { | ||
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public static void queryWithStructsParameters() { | ||
try { | ||
// Initialize client that will be used to send requests. This client only needs to be created | ||
// once, and can be reused for multiple requests. | ||
BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService(); | ||
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// Create struct | ||
Map<String, QueryParameterValue> struct = new HashMap<>(); | ||
struct.put("booleanField", QueryParameterValue.bool(true)); | ||
struct.put("integerField", QueryParameterValue.string("test-stringField")); | ||
struct.put("stringField", QueryParameterValue.int64(10)); | ||
QueryParameterValue recordValue = QueryParameterValue.struct(struct); | ||
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String query = "SELECT STRUCT(@recordField) AS record"; | ||
QueryJobConfiguration queryConfig = | ||
QueryJobConfiguration.newBuilder(query) | ||
.setUseLegacySql(false) | ||
.addNamedParameter("recordField", recordValue) | ||
.build(); | ||
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TableResult results = bigquery.query(queryConfig); | ||
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results | ||
.iterateAll() | ||
.forEach(row -> row.forEach(val -> System.out.printf("%s", val.toString()))); | ||
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System.out.println("Query with struct parameter performed successfully."); | ||
} catch (BigQueryException | InterruptedException e) { | ||
System.out.println("Query not performed \n" + e.toString()); | ||
} | ||
} | ||
} | ||
// [END bigquery_query_params_structs] |
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samples/snippets/src/test/java/com/example/bigquery/QueryWithStructsParametersIT.java
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/* | ||
* Copyright 2020 Google LLC | ||
* | ||
* 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.example.bigquery; | ||
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import static com.google.common.truth.Truth.assertThat; | ||
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import java.io.ByteArrayOutputStream; | ||
import java.io.PrintStream; | ||
import org.junit.After; | ||
import org.junit.Before; | ||
import org.junit.Test; | ||
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public class QueryWithStructsParametersIT { | ||
private ByteArrayOutputStream bout; | ||
private PrintStream out; | ||
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@Before | ||
public void setUp() { | ||
bout = new ByteArrayOutputStream(); | ||
out = new PrintStream(bout); | ||
System.setOut(out); | ||
} | ||
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@After | ||
public void tearDown() { | ||
System.setOut(null); | ||
} | ||
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@Test | ||
public void testQueryWithNamedParameters() { | ||
QueryWithStructsParameters.queryWithStructsParameters(); | ||
assertThat(bout.toString()).contains("Query with struct parameter performed successfully."); | ||
} | ||
} |