Java Code Examples for org.apache.beam.sdk.io.jdbc.JdbcIO

The following examples show how to use org.apache.beam.sdk.io.jdbc.JdbcIO. These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: components   Source File: JDBCOutputPTransformRuntime.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public PDone expand(PCollection<IndexedRecord> input) {
    return input.apply(JdbcIO.<IndexedRecord> write().withDataSourceConfiguration(JdbcIO.DataSourceConfiguration
            .create(properties.getDatasetProperties().getDatastoreProperties().getCurrentDriverClass(),
                    properties.getDatasetProperties().getDatastoreProperties().jdbcUrl.getValue())
            .withUsername(properties.getDatasetProperties().getDatastoreProperties().userId.getValue())
            .withPassword(properties.getDatasetProperties().getDatastoreProperties().password.getValue()))
            .withStatement(
                    JDBCSQLBuilder.getInstance().generateSQL4Insert(properties.getDatasetProperties().tableName.getValue(),
                            properties.getDatasetProperties().main.schema.getValue()))
            .withPreparedStatementSetter(new PreparedStatementSetter<IndexedRecord>() {

                @Override
                public void setParameters(IndexedRecord indexedRecord, PreparedStatement preparedStatement) throws Exception {
                    List<Schema.Field> fields = indexedRecord.getSchema().getFields();
                    int index = 0;
                    for (Schema.Field f : fields) {
                        JDBCMapping.setValue(++index, preparedStatement, f, indexedRecord.get(f.pos()));
                    }
                }
            }));
}
 
Example 2
Source Project: components   Source File: JDBCInputPTransformRuntime.java    License: Apache License 2.0 6 votes vote down vote up
@Override
public PCollection<IndexedRecord> expand(PBegin pBegin) {
    return (PCollection<IndexedRecord>) pBegin.apply(JdbcIO
            .<IndexedRecord> read()
            .withDataSourceConfiguration(
                    JdbcIO.DataSourceConfiguration
                            .create(properties.getDatasetProperties().getDatastoreProperties().getCurrentDriverClass(),
                                    properties.getDatasetProperties().getDatastoreProperties().jdbcUrl.getValue())
                            .withUsername(properties.getDatasetProperties().getDatastoreProperties().userId.getValue())
                            .withPassword(properties.getDatasetProperties().getDatastoreProperties().password.getValue()))
            .withFetchSize(FETCH_SIZE)
            .withQuery(properties.getDatasetProperties().getSql()).withRowMapper(new JdbcIO.RowMapper<IndexedRecord>() {

                @Override
                public IndexedRecord mapRow(ResultSet resultSet) throws Exception {
                    if (factory == null) {
                        factory = new ResultSetStringRecordConverter();
                        factory.setSchema(defaultOutputCoder.getSchema());
                    }
                    return factory.convertToAvro(resultSet);
                }
            }).withCoder(getDefaultOutputCoder()));
}
 
Example 3
Source Project: DataflowTemplates   Source File: DynamicJdbcIO.java    License: Apache License 2.0 5 votes vote down vote up
private DynamicReadFn(
    DynamicDataSourceConfiguration dataSourceConfiguration,
    ValueProvider<String> query,
    JdbcIO.RowMapper<T> rowMapper) {
  this.dataSourceConfiguration = dataSourceConfiguration;
  this.query = query;
  this.rowMapper = rowMapper;
}
 
Example 4
Source Project: DataflowTemplates   Source File: JdbcConvertersTest.java    License: Apache License 2.0 5 votes vote down vote up
@Test
public void testRowMapper() throws Exception {

    JdbcIO.RowMapper<TableRow> resultSetConverters = JdbcConverters.getResultSetToTableRow();
    TableRow actualTableRow = resultSetConverters.mapRow(resultSet);

    assertThat(expectedTableRow.size(), equalTo(actualTableRow.size()));
    assertThat(actualTableRow, equalTo(expectedTableRow));
}
 
Example 5
Source Project: dataflow-opinion-analysis   Source File: IndexerPipeline.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * @param options
 * @return PTransform that reads from a JDBC source
 */
private static org.apache.beam.sdk.io.jdbc.JdbcIO.Read<InputContent> readDBRows(IndexerPipelineOptions options) {
	
	String query = IndexerPipelineUtils.buildJdbcSourceImportQuery(options);
	
	return JdbcIO.<InputContent>read()
	    .withDataSourceConfiguration(
	    	JdbcIO.DataSourceConfiguration.create(options.getJdbcDriverClassName(), options.getJdbcSourceUrl())
	    	.withUsername(options.getJdbcSourceUsername())
		    .withPassword(options.getJdbcSourcePassword())
	    )
	    .withQuery(query)
	    .withRowMapper(new RowMapper<InputContent>() {
	    	@Override
	    	public InputContent mapRow(ResultSet resultSet) throws Exception {
	    		InputContent result = new InputContent(
	        		resultSet.getString("url"),
	        		resultSet.getLong("pub_time")*1000L,
	        		resultSet.getString("title"),
	        		resultSet.getString("author"),
	        		resultSet.getString("language"),
	        		resultSet.getString("page_text"),
	        		resultSet.getString("doc_col_id"), 
	        		resultSet.getString("col_item_id"),
	        		resultSet.getInt("skip_indexing")
	    		); 
	    	  
	    		return result;
	    	}
	    })
	    .withCoder(AvroCoder.of(InputContent.class));
}
 
Example 6
Source Project: component-runtime   Source File: JdbcSource.java    License: Apache License 2.0 5 votes vote down vote up
public PCollection<JsonObject> expand(final PBegin input) {
    final WorkAroundCoder workAroundCoder = new WorkAroundCoder();
    final PCollection<JsonObject> apply = input
            .apply(JdbcIO
                    .<JsonObject> read()
                    .withRowMapper(new RecordMapper(builder))
                    .withDataSourceConfiguration(config.asBeamConfig())
                    .withQuery(config.query)
                    .withCoder(workAroundCoder));
    workAroundCoder.collection = apply;
    return apply;
}
 
Example 7
Source Project: component-runtime   Source File: JdbcSource.java    License: Apache License 2.0 5 votes vote down vote up
JdbcIO.DataSourceConfiguration asBeamConfig() {
    final JdbcIO.DataSourceConfiguration configuration = JdbcIO.DataSourceConfiguration.create(driver, url);
    if (username != null) {
        return configuration.withUsername(username).withPassword(password);
    }
    return configuration;
}
 
Example 8
Source Project: DataflowTemplates   Source File: JdbcConverters.java    License: Apache License 2.0 4 votes vote down vote up
/** Factory method for {@link ResultSetToTableRow}. */
public static JdbcIO.RowMapper<TableRow> getResultSetToTableRow() {
  return new ResultSetToTableRow();
}
 
Example 9
Source Project: DataflowTemplates   Source File: DynamicJdbcIO.java    License: Apache License 2.0 4 votes vote down vote up
@Nullable
abstract JdbcIO.RowMapper<T> getRowMapper();
 
Example 10
Source Project: DataflowTemplates   Source File: DynamicJdbcIO.java    License: Apache License 2.0 4 votes vote down vote up
public DynamicRead<T> withRowMapper(JdbcIO.RowMapper<T> rowMapper) {
  checkArgument(rowMapper != null, ".withRowMapper(rowMapper) called with null rowMapper");
  return toBuilder().setRowMapper(rowMapper).build();
}
 
Example 11
/**
 * This function creates the DAG graph of transforms. It can be called from main()
 * as well as from the ControlPipeline.
 * @param options
 * @return
 * @throws Exception
 */
public static Pipeline createSocialStatsPipeline(IndexerPipelineOptions options) throws Exception {
	
    IndexerPipelineUtils.validateSocialStatsPipelineOptions(options);
	
	Pipeline pipeline = Pipeline.create(options);

	PCollection<WebresourceSocialCount> readCounts = null;
		
	String query = IndexerPipelineUtils.buildJdbcSourceImportQueryForSocialStats(options);
	
	readCounts = pipeline.apply (
           JdbcIO.<WebresourceSocialCount>read()
               .withDataSourceConfiguration(
               	JdbcIO.DataSourceConfiguration.create(options.getJdbcDriverClassName(), options.getJdbcSourceUrl())
               	.withUsername(options.getJdbcSourceUsername())
			    .withPassword(options.getJdbcSourcePassword())
               )
               .withQuery(query)
               .withRowMapper(new RowMapper<WebresourceSocialCount>() {
               	@Override
               	public WebresourceSocialCount mapRow(ResultSet resultSet) throws Exception {
               		WebresourceSocialCount result = new WebresourceSocialCount(
               				resultSet.getLong("page_pub_time")*1000L,
               				resultSet.getString("url"),
               				resultSet.getString("doc_col_id"),
               				resultSet.getString("col_item_id"),
               				resultSet.getLong("count_time")*1000L,
               				resultSet.getInt("count_tw"),
               				resultSet.getInt("count_fb")
               		); 
               	  
               		return result;
               	}
               })
               .withCoder(AvroCoder.of(WebresourceSocialCount.class))
    );
	
	// if content is to be added to bigquery, then obtain a list of
	// latest social stats per page
	PCollection<WebresourceSocialCount> countsToProcess = null;
	
	if (options.getWriteTruncate() != null && !options.getWriteTruncate() && options.getWrSocialCountHistoryWindowSec() != null) {
		String queryCache = IndexerPipelineUtils.buildBigQueryProcessedSocialCountsQuery(options);
		PCollection<KV<String,Long>> lastCountTimes = pipeline
			.apply("Get processed social count times", BigQueryIO.read().fromQuery(queryCache))
			.apply(ParDo.of(new GetLastCountTime()));

		final PCollectionView<Map<String,Long>> lastCountTimesSideInput =
				lastCountTimes.apply(View.<String,Long>asMap());
		  
		countsToProcess = readCounts
			.apply(ParDo
					.of(new DoFn<WebresourceSocialCount, WebresourceSocialCount>() {
						@ProcessElement
						public void processElement(ProcessContext c) {
							WebresourceSocialCount i = c.element();
							// check in the map if we already processed this Url, and if we haven't, add the input content to 
							// the list that needs to be processed 
							Long lastTime = c.sideInput(lastCountTimesSideInput).get(i.webResourceHash);
							
							if (lastTime == null || lastTime < i.countTime)
								c.output(i);
						}
					})
					.withSideInputs(lastCountTimesSideInput)
					);
	} else {
		countsToProcess = readCounts;
	}

	PCollection<TableRow> wrSocialCounts = countsToProcess
		.apply(ParDo.of(new CreateWrSocialCountTableRowFn()));
	
	// Now write to BigQuery
	WriteDisposition dispo = options.getWriteTruncate() ? 
			WriteDisposition.WRITE_TRUNCATE: WriteDisposition.WRITE_APPEND; 
	
	wrSocialCounts
		.apply("Write to wrsocialcount", BigQueryIO
			.writeTableRows()
			.to(getWRSocialCountTableReference(options))
			.withSchema(getWrSocialCountSchema())
			.withWriteDisposition(dispo)); 
	

	return pipeline;
}
 
Example 12
Source Project: DataflowTemplates   Source File: DynamicJdbcIO.java    License: Apache License 2.0 votes vote down vote up
abstract Builder<T> setRowMapper(JdbcIO.RowMapper<T> rowMapper);