org.apache.nifi.processors.standard.enrichment

Class SqlJoinCache

java.lang.Object

org.apache.nifi.processors.standard.enrichment.SqlJoinCache

All Implemented Interfaces:

AutoCloseable

public class SqlJoinCache
extends Object
implements AutoCloseable

Field Summary

Fields

Modifier and Type	Field and Description
private com.github.benmanes.caffeine.cache.Cache<Tuple<String,RecordSchema>,BlockingQueue<SqlJoinCalciteParameters>>	calciteParameterQueues
private ComponentLog	logger

Constructor Summary

Constructors

Constructor and Description
SqlJoinCache(ComponentLog logger)

Method Summary

Modifier and Type	Method and Description
private void	clearQueue(BlockingQueue<SqlJoinCalciteParameters> parameterQueue)
void	close()
private org.apache.calcite.jdbc.CalciteConnection	createCalciteConnection()
private SqlJoinCalciteParameters	createCalciteParameters(String sql, ProcessSession session, RecordJoinInput originalInput, RecordJoinInput enrichmentInput, BlockingQueue<SqlJoinCalciteParameters> parameterQueue)
SqlJoinCalciteParameters	getCalciteParameters(String sql, ProcessSession session, RecordSchema schema, RecordJoinInput originalInput, RecordJoinInput enrichmentInput)
private void	onCacheEviction(Tuple<String,RecordSchema> key, BlockingQueue<SqlJoinCalciteParameters> queue, com.github.benmanes.caffeine.cache.RemovalCause cause)
void	returnCalciteParameters(String sql, RecordSchema schema, SqlJoinCalciteParameters parameters)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

logger

private final ComponentLog logger

calciteParameterQueues

private final com.github.benmanes.caffeine.cache.Cache<Tuple<String,RecordSchema>,BlockingQueue<SqlJoinCalciteParameters>> calciteParameterQueues

Constructor Detail

SqlJoinCache

public SqlJoinCache(ComponentLog logger)

Method Detail

getCalciteParameters

public SqlJoinCalciteParameters getCalciteParameters(String sql,
                                                     ProcessSession session,
                                                     RecordSchema schema,
                                                     RecordJoinInput originalInput,
                                                     RecordJoinInput enrichmentInput)
                                              throws SQLException

Throws:

SQLException

returnCalciteParameters

public void returnCalciteParameters(String sql,
                                    RecordSchema schema,
                                    SqlJoinCalciteParameters parameters)

createCalciteParameters

private SqlJoinCalciteParameters createCalciteParameters(String sql,
                                                         ProcessSession session,
                                                         RecordJoinInput originalInput,
                                                         RecordJoinInput enrichmentInput,
                                                         BlockingQueue<SqlJoinCalciteParameters> parameterQueue)
                                                  throws SQLException

Throws:

SQLException

createCalciteConnection

private org.apache.calcite.jdbc.CalciteConnection createCalciteConnection()

onCacheEviction

private void onCacheEviction(Tuple<String,RecordSchema> key,
                             BlockingQueue<SqlJoinCalciteParameters> queue,
                             com.github.benmanes.caffeine.cache.RemovalCause cause)

clearQueue

private void clearQueue(BlockingQueue<SqlJoinCalciteParameters> parameterQueue)

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception