org.apache.calcite.adapter.splunk

Class SplunkPushDownRule

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.calcite.adapter.splunk.SplunkPushDownRule

public class SplunkPushDownRule
extends RelOptRule

Planner rule to push filters and projections to Splunk.

Field Summary

Fields

Modifier and Type	Field and Description
static SplunkPushDownRule	FILTER
static SplunkPushDownRule	FILTER_ON_PROJECT
private static org.slf4j.Logger	LOGGER
static SplunkPushDownRule	PROJECT
static SplunkPushDownRule	PROJECT_ON_FILTER
private static Set<SqlKind>	SUPPORTED_OPS

Fields inherited from class org.apache.calcite.plan.RelOptRule

description, operands, relBuilderFactory

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SplunkPushDownRule(RelOptRuleOperand rule, String id) Creates a SplunkPushDownRule.

Method Summary

Modifier and Type	Method and Description
private static RelNode	addProjectionRule(LogicalProject proj, RelNode rel)
protected RelNode	appendSearchString(String toAppend, SplunkTableScan splunkRel, LogicalProject topProj, LogicalProject bottomProj, RelDataType topRow, RelDataType bottomRow) Appends a search string.
private boolean	asd(boolean like, List<RexNode> operands, StringBuilder s, List<String> fieldNames, int i)
static String	getFieldsString(RelDataType row)
private boolean	getFilter(SqlOperator op, List<RexNode> operands, StringBuilder s, List<String> fieldNames)
void	onMatch(RelOptRuleCall call)
static String	searchEscape(String str)
private String	toString(boolean like, RexLiteral literal)
private String	toString(SqlOperator op)
protected void	transformToFarragoUdxRel(RelOptRuleCall call, SplunkTableScan splunkRel, LogicalFilter filter, LogicalProject topProj, LogicalProject bottomProj)
private boolean	valid(SqlKind kind)

Methods inherited from class org.apache.calcite.plan.RelOptRule

any, convert, convert, convertList, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, matches, none, operand, operand, operand, operand, operand, some, toString, unordered

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

SUPPORTED_OPS

private static final Set<SqlKind> SUPPORTED_OPS

PROJECT_ON_FILTER

public static final SplunkPushDownRule PROJECT_ON_FILTER

FILTER_ON_PROJECT

public static final SplunkPushDownRule FILTER_ON_PROJECT

FILTER

public static final SplunkPushDownRule FILTER

PROJECT

public static final SplunkPushDownRule PROJECT

Constructor Detail

SplunkPushDownRule

protected SplunkPushDownRule(RelOptRuleOperand rule,
                             String id)

Creates a SplunkPushDownRule.

Method Detail

onMatch

public void onMatch(RelOptRuleCall call)

Specified by:

onMatch in class RelOptRule

appendSearchString

protected RelNode appendSearchString(String toAppend,
                                     SplunkTableScan splunkRel,
                                     LogicalProject topProj,
                                     LogicalProject bottomProj,
                                     RelDataType topRow,
                                     RelDataType bottomRow)

Appends a search string.

Parameters:

toAppend - Search string to append

splunkRel - Relational expression

topProj - Top projection

bottomProj - Bottom projection

addProjectionRule

private static RelNode addProjectionRule(LogicalProject proj,
                                         RelNode rel)

getFilter

private boolean getFilter(SqlOperator op,
                          List<RexNode> operands,
                          StringBuilder s,
                          List<String> fieldNames)

asd

private boolean asd(boolean like,
                    List<RexNode> operands,
                    StringBuilder s,
                    List<String> fieldNames,
                    int i)

valid

private boolean valid(SqlKind kind)

toString

private String toString(SqlOperator op)

searchEscape

public static String searchEscape(String str)

toString

private String toString(boolean like,
                        RexLiteral literal)

transformToFarragoUdxRel

protected void transformToFarragoUdxRel(RelOptRuleCall call,
                                        SplunkTableScan splunkRel,
                                        LogicalFilter filter,
                                        LogicalProject topProj,
                                        LogicalProject bottomProj)

getFieldsString

public static String getFieldsString(RelDataType row)