/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.epl.join.exec.composite;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.expression.core.ExprEvaluator;
import com.espertech.esper.epl.expression.core.ExprEvaluatorContext;
import com.espertech.esper.epl.expression.core.ExprNodeUtility;
import com.espertech.esper.epl.join.plan.QueryGraphRangeEnum;
import com.espertech.esper.epl.join.plan.QueryGraphValueEntryRange;
import com.espertech.esper.epl.join.plan.QueryGraphValueEntryRangeIn;
import com.espertech.esper.epl.join.plan.QueryGraphValueEntryRangeRelOp;
import com.espertech.esper.epl.lookup.SubordPropRangeKey;
import java.util.*;
public class CompositeIndexQueryRange implements CompositeIndexQuery {
private final CompositeAccessStrategy strategy;
private CompositeIndexQuery next;
public CompositeIndexQueryRange(boolean isNWOnTrigger, int lookupStream, int numStreams, SubordPropRangeKey subqRangeKey, Class coercionType, List<String> expressionTexts) {
QueryGraphValueEntryRange rangeProp = subqRangeKey.getRangeInfo();
if (rangeProp.getType().isRange()) {
QueryGraphValueEntryRangeIn rangeIn = (QueryGraphValueEntryRangeIn) rangeProp;
ExprEvaluator start = rangeIn.getExprStart().getExprEvaluator();
expressionTexts.add(ExprNodeUtility.toExpressionStringMinPrecedenceSafe(rangeIn.getExprStart()));
boolean includeStart = rangeProp.getType().isIncludeStart();
ExprEvaluator end = rangeIn.getExprEnd().getExprEvaluator();
expressionTexts.add(ExprNodeUtility.toExpressionStringMinPrecedenceSafe(rangeIn.getExprEnd()));
boolean includeEnd = rangeProp.getType().isIncludeEnd();
if (!rangeProp.getType().isRangeInverted()) {
strategy = new CompositeAccessStrategyRangeNormal(isNWOnTrigger, lookupStream, numStreams, start, includeStart, end, includeEnd, coercionType, ((QueryGraphValueEntryRangeIn) rangeProp).isAllowRangeReversal());
} else {
strategy = new CompositeAccessStrategyRangeInverted(isNWOnTrigger, lookupStream, numStreams, start, includeStart, end, includeEnd, coercionType);
}
} else {
QueryGraphValueEntryRangeRelOp relOp = (QueryGraphValueEntryRangeRelOp) rangeProp;
ExprEvaluator key = relOp.getExpression().getExprEvaluator();
expressionTexts.add(ExprNodeUtility.toExpressionStringMinPrecedenceSafe(relOp.getExpression()));
if (rangeProp.getType() == QueryGraphRangeEnum.GREATER_OR_EQUAL) {
strategy = new CompositeAccessStrategyGE(isNWOnTrigger, lookupStream, numStreams, key, coercionType);
} else if (rangeProp.getType() == QueryGraphRangeEnum.GREATER) {
strategy = new CompositeAccessStrategyGT(isNWOnTrigger, lookupStream, numStreams, key, coercionType);
} else if (rangeProp.getType() == QueryGraphRangeEnum.LESS_OR_EQUAL) {
strategy = new CompositeAccessStrategyLE(isNWOnTrigger, lookupStream, numStreams, key, coercionType);
} else if (rangeProp.getType() == QueryGraphRangeEnum.LESS) {
strategy = new CompositeAccessStrategyLT(isNWOnTrigger, lookupStream, numStreams, key, coercionType);
} else {
throw new IllegalArgumentException("Comparison operator " + rangeProp.getType() + " not supported");
}
}
}
public void add(EventBean theEvent, Map parent, Set<EventBean> result, CompositeIndexQueryResultPostProcessor postProcessor) {
strategy.lookup(theEvent, parent, result, next, null, null, postProcessor);
}
public void add(EventBean[] eventsPerStream, Map parent, Collection<EventBean> result, CompositeIndexQueryResultPostProcessor postProcessor) {
strategy.lookup(eventsPerStream, parent, result, next, null, null, postProcessor);
}
public Set<EventBean> get(EventBean theEvent, Map parent, ExprEvaluatorContext context, CompositeIndexQueryResultPostProcessor postProcessor) {
return strategy.lookup(theEvent, parent, null, next, context, null, postProcessor);
}
public Collection<EventBean> get(EventBean[] eventsPerStream, Map parent, ExprEvaluatorContext context, CompositeIndexQueryResultPostProcessor postProcessor) {
return strategy.lookup(eventsPerStream, parent, null, next, context, null, postProcessor);
}
public Set<EventBean> getCollectKeys(EventBean theEvent, Map parent, ExprEvaluatorContext context, ArrayList<Object> keys, CompositeIndexQueryResultPostProcessor postProcessor) {
return strategy.lookup(theEvent, parent, null, next, context, keys, postProcessor);
}
public Collection<EventBean> getCollectKeys(EventBean[] eventsPerStream, Map parent, ExprEvaluatorContext context, ArrayList<Object> keys, CompositeIndexQueryResultPostProcessor postProcessor) {
return strategy.lookup(eventsPerStream, parent, null, next, context, keys, postProcessor);
}
protected static Set<EventBean> handle(EventBean theEvent, SortedMap sortedMapOne, SortedMap sortedMapTwo, Set<EventBean> result, CompositeIndexQuery next, CompositeIndexQueryResultPostProcessor postProcessor) {
if (next == null) {
if (result == null) {
result = new HashSet<EventBean>();
}
addResults(sortedMapOne, sortedMapTwo, result, postProcessor);
return result;
} else {
if (result == null) {
result = new HashSet<EventBean>();
}
Map<Object, Map> map = (Map<Object, Map>) sortedMapOne;
for (Map.Entry<Object, Map> entry : map.entrySet()) {
next.add(theEvent, entry.getValue(), result, postProcessor);
}
if (sortedMapTwo != null) {
map = (Map<Object, Map>) sortedMapTwo;
for (Map.Entry<Object, Map> entry : map.entrySet()) {
next.add(theEvent, entry.getValue(), result, postProcessor);
}
}
return result;
}
}
protected static Collection<EventBean> handle(EventBean[] eventsPerStream, SortedMap sortedMapOne, SortedMap sortedMapTwo, Collection<EventBean> result, CompositeIndexQuery next, CompositeIndexQueryResultPostProcessor postProcessor) {
if (next == null) {
if (result == null) {
result = new HashSet<EventBean>();
}
addResults(sortedMapOne, sortedMapTwo, result, postProcessor);
return result;
} else {
if (result == null) {
result = new HashSet<EventBean>();
}
Map<Object, Map> map = (Map<Object, Map>) sortedMapOne;
for (Map.Entry<Object, Map> entry : map.entrySet()) {
next.add(eventsPerStream, entry.getValue(), result, postProcessor);
}
if (sortedMapTwo != null) {
map = (Map<Object, Map>) sortedMapTwo;
for (Map.Entry<Object, Map> entry : map.entrySet()) {
next.add(eventsPerStream, entry.getValue(), result, postProcessor);
}
}
return result;
}
}
private static void addResults(SortedMap sortedMapOne, SortedMap sortedMapTwo, Collection<EventBean> result, CompositeIndexQueryResultPostProcessor postProcessor) {
addResults(sortedMapOne, result, postProcessor);
if (sortedMapTwo != null) {
addResults(sortedMapTwo, result, postProcessor);
}
}
private static void addResults(SortedMap sortedMapOne, Collection<EventBean> result, CompositeIndexQueryResultPostProcessor postProcessor) {
Map<Object, Set<EventBean>> map = (Map<Object, Set<EventBean>>) sortedMapOne;
if (postProcessor != null) {
for (Map.Entry<Object, Set<EventBean>> entry : map.entrySet()) {
postProcessor.add(entry.getValue(), result);
}
} else {
for (Map.Entry<Object, Set<EventBean>> entry : map.entrySet()) {
result.addAll(entry.getValue());
}
}
}
public void setNext(CompositeIndexQuery next) {
this.next = next;
}
}