/*
***************************************************************************************
* 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.expression.ops;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.core.StreamTypeService;
import com.espertech.esper.epl.expression.core.ExprIdentNode;
import com.espertech.esper.epl.expression.core.ExprIdentNodeImpl;
import com.espertech.esper.epl.expression.core.ExprNodeUtility;
import com.espertech.esper.epl.expression.core.ExprValidationException;
import com.espertech.esper.supportunit.bean.SupportBean;
import com.espertech.esper.supportunit.epl.SupportStreamTypeSvc3Stream;
import com.espertech.esper.supportunit.event.SupportEventBeanFactory;
import com.espertech.esper.util.support.SupportExprValidationContextFactory;
import junit.framework.TestCase;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class TestExprIdentNode extends TestCase {
private ExprIdentNode identNodes[];
private StreamTypeService streamTypeService;
public void setUp() {
identNodes = new ExprIdentNode[4];
identNodes[0] = new ExprIdentNodeImpl("mapped('a')");
identNodes[1] = new ExprIdentNodeImpl("nestedValue", "nested");
identNodes[2] = new ExprIdentNodeImpl("indexed[1]", "s2");
identNodes[3] = new ExprIdentNodeImpl("intPrimitive", "s0");
streamTypeService = new SupportStreamTypeSvc3Stream();
}
public void testValidateInvalid() throws Exception {
try {
identNodes[0].getStreamId();
fail();
} catch (IllegalStateException ex) {
// expected
}
assertNull(identNodes[0].getExprEvaluator());
try {
identNodes[0].getResolvedStreamName();
fail();
} catch (IllegalStateException ex) {
// expected
}
try {
identNodes[0].getResolvedPropertyName();
fail();
} catch (IllegalStateException ex) {
// expected
}
}
public void testValidate() throws Exception {
identNodes[0].validate(SupportExprValidationContextFactory.make(streamTypeService));
assertEquals(2, identNodes[0].getStreamId());
assertEquals(String.class, identNodes[0].getExprEvaluator().getType());
assertEquals("mapped('a')", identNodes[0].getResolvedPropertyName());
identNodes[1].validate(SupportExprValidationContextFactory.make(streamTypeService));
assertEquals(2, identNodes[1].getStreamId());
assertEquals(String.class, identNodes[1].getExprEvaluator().getType());
assertEquals("nested.nestedValue", identNodes[1].getResolvedPropertyName());
identNodes[2].validate(SupportExprValidationContextFactory.make(streamTypeService));
assertEquals(2, identNodes[2].getStreamId());
assertEquals(int.class, identNodes[2].getExprEvaluator().getType());
assertEquals("indexed[1]", identNodes[2].getResolvedPropertyName());
identNodes[3].validate(SupportExprValidationContextFactory.make(streamTypeService));
assertEquals(0, identNodes[3].getStreamId());
assertEquals(int.class, identNodes[3].getExprEvaluator().getType());
assertEquals("intPrimitive", identNodes[3].getResolvedPropertyName());
tryInvalidValidate(new ExprIdentNodeImpl(""));
tryInvalidValidate(new ExprIdentNodeImpl("dummy"));
tryInvalidValidate(new ExprIdentNodeImpl("nested", "s0"));
tryInvalidValidate(new ExprIdentNodeImpl("dummy", "s2"));
tryInvalidValidate(new ExprIdentNodeImpl("intPrimitive", "s2"));
tryInvalidValidate(new ExprIdentNodeImpl("intPrimitive", "s3"));
}
public void testGetType() throws Exception {
// test success
identNodes[0].validate(SupportExprValidationContextFactory.make(streamTypeService));
assertEquals(String.class, identNodes[0].getExprEvaluator().getType());
}
public void testEvaluate() throws Exception {
EventBean[] events = new EventBean[]{makeEvent(10)};
identNodes[3].validate(SupportExprValidationContextFactory.make(streamTypeService));
assertEquals(10, identNodes[3].getExprEvaluator().evaluate(events, false, null));
assertNull(identNodes[3].getExprEvaluator().evaluate(new EventBean[2], false, null));
}
public void testEvaluatePerformance() throws Exception {
// test performance of evaluate for indexed events
// fails if the getter is not in place
EventBean[] events = SupportStreamTypeSvc3Stream.getSampleEvents();
identNodes[2].validate(SupportExprValidationContextFactory.make(streamTypeService));
long startTime = System.currentTimeMillis();
for (int i = 0; i < 100000; i++) {
identNodes[2].getExprEvaluator().evaluate(events, false, null);
}
long endTime = System.currentTimeMillis();
long delta = endTime - startTime;
log.info(".testEvaluate delta=" + delta);
assertTrue(delta < 500);
}
public void testToExpressionString() throws Exception {
for (int i = 0; i < identNodes.length; i++) {
identNodes[i].validate(SupportExprValidationContextFactory.make(streamTypeService));
}
assertEquals("mapped('a')", ExprNodeUtility.toExpressionStringMinPrecedenceSafe(identNodes[0]));
assertEquals("nested.nestedValue", ExprNodeUtility.toExpressionStringMinPrecedenceSafe(identNodes[1]));
assertEquals("s2.indexed[1]", ExprNodeUtility.toExpressionStringMinPrecedenceSafe(identNodes[2]));
assertEquals("s0.intPrimitive", ExprNodeUtility.toExpressionStringMinPrecedenceSafe(identNodes[3]));
}
public void testEqualsNode() throws Exception {
identNodes[0].validate(SupportExprValidationContextFactory.make(streamTypeService));
identNodes[2].validate(SupportExprValidationContextFactory.make(streamTypeService));
identNodes[3].validate(SupportExprValidationContextFactory.make(streamTypeService));
assertTrue(identNodes[3].equalsNode(identNodes[3], false));
assertFalse(identNodes[0].equalsNode(identNodes[2], false));
}
protected static EventBean makeEvent(int intPrimitive) {
SupportBean theEvent = new SupportBean();
theEvent.setIntPrimitive(intPrimitive);
return SupportEventBeanFactory.createObject(theEvent);
}
private void tryInvalidValidate(ExprIdentNode identNode) {
try {
identNode.validate(SupportExprValidationContextFactory.make(streamTypeService));
fail();
} catch (ExprValidationException ex) {
// expected
}
}
private static final Logger log = LoggerFactory.getLogger(TestExprIdentNode.class);
}