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/*******************************************************************************
* Copyright (c) 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.aspectj.weaver.patterns;
import java.lang.reflect.Method;
import junit.framework.TestCase;
import org.aspectj.util.LangUtil;
import org.aspectj.weaver.tools.JoinPointMatch;
import org.aspectj.weaver.tools.PointcutExpression;
import org.aspectj.weaver.tools.PointcutParameter;
import org.aspectj.weaver.tools.PointcutParser;
import org.aspectj.weaver.tools.ShadowMatch;
/**
* @author colyer
*
*/
public class ArgsTestCase extends TestCase {
PointcutExpression wildcardArgs;
PointcutExpression oneA;
PointcutExpression oneAandaC;
PointcutExpression BthenAnything;
PointcutExpression singleArg;
public void testMatchJP() throws Exception {
if (needToSkip)
return;
Method oneAArg = B.class.getMethod("x", new Class[] { A.class });
Method oneBArg = B.class.getMethod("y", new Class[] { B.class });
Method acArgs = C.class.getMethod("z", new Class[] { A.class, C.class });
Method baArgs = C.class.getMethod("t", new Class[] { B.class, A.class });
checkMatches(wildcardArgs.matchesMethodExecution(oneAArg), new B(), new B(), new Object[] { new A() });
checkMatches(wildcardArgs.matchesMethodExecution(oneBArg), new B(), new B(), new Object[] { new B() });
checkMatches(wildcardArgs.matchesMethodExecution(acArgs), new C(), new C(), new Object[] { new B(), new C() });
checkMatches(wildcardArgs.matchesMethodExecution(baArgs), new C(), new C(), new Object[] { new B(), new B() });
checkMatches(oneA.matchesMethodExecution(oneAArg), new B(), new B(), new Object[] { new A() });
checkMatches(oneA.matchesMethodExecution(oneBArg), new B(), new B(), new Object[] { new B() });
checkNoMatch(oneA.matchesMethodExecution(acArgs), new C(), new C(), new Object[] { new B(), new C() });
checkNoMatch(oneA.matchesMethodExecution(baArgs), new C(), new C(), new Object[] { new B(), new B() });
checkNoMatch(oneAandaC.matchesMethodExecution(oneAArg), new B(), new B(), new Object[] { new A() });
checkNoMatch(oneAandaC.matchesMethodExecution(oneBArg), new B(), new B(), new Object[] { new B() });
checkMatches(oneAandaC.matchesMethodExecution(acArgs), new C(), new C(), new Object[] { new B(), new C() });
checkNoMatch(oneAandaC.matchesMethodExecution(baArgs), new C(), new C(), new Object[] { new B(), new B() });
checkNoMatch(BthenAnything.matchesMethodExecution(oneAArg), new B(), new B(), new Object[] { new A() });
checkMatches(BthenAnything.matchesMethodExecution(oneBArg), new B(), new B(), new Object[] { new B() });
checkNoMatch(BthenAnything.matchesMethodExecution(acArgs), new C(), new C(), new Object[] { new A(), new C() });
checkMatches(BthenAnything.matchesMethodExecution(baArgs), new C(), new C(), new Object[] { new B(), new B() });
checkMatches(singleArg.matchesMethodExecution(oneAArg), new B(), new B(), new Object[] { new A() });
checkMatches(singleArg.matchesMethodExecution(oneBArg), new B(), new B(), new Object[] { new B() });
checkNoMatch(singleArg.matchesMethodExecution(acArgs), new C(), new C(), new Object[] { new B(), new C() });
checkNoMatch(singleArg.matchesMethodExecution(baArgs), new C(), new C(), new Object[] { new B(), new B() });
}
public void testBinding() throws Exception {
if (needToSkip)
return;
PointcutParser parser = PointcutParser
.getPointcutParserSupportingAllPrimitivesAndUsingSpecifiedClassloaderForResolution(A.class.getClassLoader());
PointcutParameter a = parser.createPointcutParameter("a", A.class);
A theParameter = new A();
PointcutExpression bindA = parser.parsePointcutExpression("args(a,*)", A.class, new PointcutParameter[] { a });
Method acArgs = C.class.getMethod("z", new Class[] { A.class, C.class });
ShadowMatch sMatch = bindA.matchesMethodExecution(acArgs);
JoinPointMatch jpMatch = sMatch.matchesJoinPoint(new A(), new A(), new Object[] { theParameter });
assertTrue("should match", jpMatch.matches());
PointcutParameter[] bindings = jpMatch.getParameterBindings();
assertTrue("one parameter", bindings.length == 1);
assertEquals("should be bound to the arg value", theParameter, bindings[0].getBinding());
PointcutParameter c = parser.createPointcutParameter("c", C.class);
C cParameter = new C();
PointcutExpression bindAandC = parser.parsePointcutExpression("args(a,c)", A.class, new PointcutParameter[] { a, c });
sMatch = bindAandC.matchesMethodExecution(acArgs);
jpMatch = sMatch.matchesJoinPoint(new A(), new A(), new Object[] { theParameter, cParameter });
assertTrue("should match", jpMatch.matches());
bindings = jpMatch.getParameterBindings();
assertTrue("two parameters", bindings.length == 2);
assertEquals("should be bound to the a arg value", theParameter, bindings[0].getBinding());
assertEquals("should be bound to the c arg value", cParameter, bindings[1].getBinding());
assertEquals("a", bindings[0].getName());
assertEquals("c", bindings[1].getName());
}
public void testMatchJPWithPrimitiveTypes() throws Exception {
if (needToSkip)
return;
try {
PointcutParser parser = PointcutParser
.getPointcutParserSupportingAllPrimitivesAndUsingSpecifiedClassloaderForResolution(A.class.getClassLoader());
PointcutExpression oneInt = parser.parsePointcutExpression("args(int)");
PointcutExpression oneInteger = parser.parsePointcutExpression("args(Integer)");
Method oneIntM = A.class.getMethod("anInt", new Class[] { int.class });
Method oneIntegerM = A.class.getMethod("anInteger", new Class[] { Integer.class });
if (LangUtil.is15VMOrGreater()) {
checkMatches(oneInt.matchesMethodExecution(oneIntM), new A(), new A(), new Object[] { new Integer(5) });
checkMatches(oneInt.matchesMethodExecution(oneIntegerM), new A(), new A(), new Object[] { new Integer(5) });
checkMatches(oneInteger.matchesMethodExecution(oneIntM), new A(), new A(), new Object[] { new Integer(5) });
checkMatches(oneInteger.matchesMethodExecution(oneIntegerM), new A(), new A(), new Object[] { new Integer(5) });
} else {
checkMatches(oneInt.matchesMethodExecution(oneIntM), new A(), new A(), new Object[] { new Integer(5) });
checkNoMatch(oneInt.matchesMethodExecution(oneIntegerM), new A(), new A(), new Object[] { new Integer(5) });
checkNoMatch(oneInteger.matchesMethodExecution(oneIntM), new A(), new A(), new Object[] { new Integer(5) });
checkMatches(oneInteger.matchesMethodExecution(oneIntegerM), new A(), new A(), new Object[] { new Integer(5) });
}
} catch (Exception ex) {
fail("Unexpected exception " + ex);
}
}
private void checkMatches(ShadowMatch sMatch, Object thisOjb, Object targetObj, Object[] args) {
assertTrue("match expected", sMatch.matchesJoinPoint(thisOjb, targetObj, args).matches());
}
private void checkNoMatch(ShadowMatch sMatch, Object thisOjb, Object targetObj, Object[] args) {
assertFalse("no match expected", sMatch.matchesJoinPoint(thisOjb, targetObj, args).matches());
}
private static class A {
public void anInt(int i) {
}
public void anInteger(Integer i) {
}
}
private static class B extends A {
public void x(A a) {
}
public void y(B b) {
}
}
private static class C {
public void z(A a, C c) {
}
public void t(B b, A a) {
}
}
private boolean needToSkip = false;
/** this condition can occur on the build machine only, and is way too complex to fix right now... */
private boolean needToSkipPointcutParserTests() {
if (!LangUtil.is15VMOrGreater())
return false;
try {
Class.forName("org.aspectj.weaver.reflect.Java15ReflectionBasedReferenceTypeDelegate", false, this.getClass()
.getClassLoader());// ReflectionBasedReferenceTypeDelegate.class.getClassLoader());
} catch (ClassNotFoundException cnfEx) {
return true;
}
return false;
}
protected void setUp() throws Exception {
super.setUp();
needToSkip = needToSkipPointcutParserTests();
if (needToSkip)
return;
PointcutParser parser = PointcutParser
.getPointcutParserSupportingAllPrimitivesAndUsingSpecifiedClassloaderForResolution(A.class.getClassLoader());
wildcardArgs = parser.parsePointcutExpression("args(..)");
oneA = parser.parsePointcutExpression("args(org.aspectj.weaver.patterns.ArgsTestCase.A)");
oneAandaC = parser
.parsePointcutExpression("args(org.aspectj.weaver.patterns.ArgsTestCase.A,org.aspectj.weaver.patterns.ArgsTestCase.C)");
BthenAnything = parser.parsePointcutExpression("args(org.aspectj.weaver.patterns.ArgsTestCase.B,..)");
singleArg = parser.parsePointcutExpression("args(*)");
}
}
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