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/* *******************************************************************
* Copyright (c) 2009 Contributors
* All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v 2.0
* which accompanies this distribution and is available at
* https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
*
* Contributors:
* Andy Clement initial implementation
* ******************************************************************/
package org.aspectj.weaver.patterns;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import org.aspectj.weaver.CompressingDataOutputStream;
import org.aspectj.weaver.Member;
import org.aspectj.weaver.TestUtils;
import org.aspectj.weaver.VersionedDataInputStream;
import org.aspectj.weaver.World;
import org.aspectj.weaver.reflect.ReflectionWorld;
public class SignaturePatternMatchSpeedTestCase extends PatternsTestCase {
Member stringReplaceFirstMethod;
@Override
public World getWorld() {
return new ReflectionWorld(true, this.getClass().getClassLoader());
}
public void testPatternEllipsis() throws IOException {
String pattern = "* *(..))";
SignaturePattern signaturePattern = toPattern(pattern);
warmup(signaturePattern, stringReplaceFirstMethod, world);
long time = measure(signaturePattern, stringReplaceFirstMethod, world);
System.out.println("Signature pattern [" + pattern + "] took " + time + "ms for 1,000,000");
}
public void testPatternOneArg() throws IOException {
String pattern = "* *(*))";
SignaturePattern signaturePattern = toPattern(pattern);
warmup(signaturePattern, stringReplaceFirstMethod, world);
long time = measure(signaturePattern, stringReplaceFirstMethod, world);
System.out.println("Signature pattern [" + pattern + "] took " + time + "ms for 1,000,000");
}
public void testPatternNoArgs() throws IOException {
String pattern = "* *())";
SignaturePattern signaturePattern = toPattern(pattern);
warmup(signaturePattern, stringReplaceFirstMethod, world);
long time = measure(signaturePattern, stringReplaceFirstMethod, world);
System.out.println("Signature pattern [" + pattern + "] took " + time + "ms for 1,000,000");
}
public void testPatternNotVoidReturn() throws IOException {
String pattern = "!void *(..))";
SignaturePattern signaturePattern = toPattern(pattern);
warmup(signaturePattern, stringReplaceFirstMethod, world);
long time = measure(signaturePattern, stringReplaceFirstMethod, world);
System.out.println("Signature pattern [" + pattern + "] took " + time + "ms for 1,000,000");
}
public void testPatternVoidReturn() throws IOException {
String pattern = "void *(..))";
SignaturePattern signaturePattern = toPattern(pattern);
warmup(signaturePattern, stringReplaceFirstMethod, world);
long time = measure(signaturePattern, stringReplaceFirstMethod, world);
System.out.println("Signature pattern [" + pattern + "] took " + time + "ms for 1,000,000");
}
public void testPatternWildcardedName() throws IOException {
String pattern = "* *a*b*()";
SignaturePattern signaturePattern = toPattern(pattern);
warmup(signaturePattern, stringReplaceFirstMethod, world);
long time = measure(signaturePattern, stringReplaceFirstMethod, world);
System.out.println("Signature pattern [" + pattern + "] took " + time + "ms for 1,000,000");
}
public void testPatternWildcardedName2() throws IOException {
String pattern = "* *a*b*(..)";
SignaturePattern signaturePattern = toPattern(pattern);
warmup(signaturePattern, stringReplaceFirstMethod, world);
long time = measure(signaturePattern, stringReplaceFirstMethod, world);
System.out.println("Signature pattern [" + pattern + "] took " + time + "ms for 1,000,000");
}
// ---
public void checkMatch(SignaturePattern p, Member[] yes, Member[] no) throws IOException {
p = p.resolveBindings(new TestScope(world, new FormalBinding[0]), new Bindings(0));
for (Member value : yes) {
checkMatch(p, value, true);
}
for (Member member : no) {
checkMatch(p, member, false);
}
checkSerialization(p);
}
@Override
public void setUp() throws Exception {
super.setUp();
stringReplaceFirstMethod = TestUtils.methodFromString(
"java.lang.String java.lang.String.replaceFirst(java.lang.String,java.lang.String)").resolve(world);
}
/**
* Run match 1000 times to warmup
*/
private void warmup(SignaturePattern signaturePattern, Member method, World world) {
for (int i = 0; i < 1000; i++) {
signaturePattern.matches(method, world, false);
}
}
/**
* Run match 1000000 and return time taken in ms
*/
private long measure(SignaturePattern signaturePattern, Member method, World world) {
long stime = System.currentTimeMillis();
for (int i = 0; i < 1000000; i++) {
signaturePattern.matches(method, world, false);
}
return (System.currentTimeMillis() - stime);
}
private SignaturePattern toPattern(String pattern) {
SignaturePattern signaturePattern = makeMethodPat(pattern);
signaturePattern = signaturePattern.resolveBindings(new TestScope(world, new FormalBinding[0]), new Bindings(0));
return signaturePattern;
}
private void checkMatch(SignaturePattern p, Member member, boolean b) {
boolean matches = p.matches(member, world, false);
assertEquals(p.toString() + " matches " + member.toString(), b, matches);
}
private SignaturePattern makeMethodPat(String pattern) {
return new PatternParser(pattern).parseMethodOrConstructorSignaturePattern();
}
private SignaturePattern makeFieldPat(String pattern) {
return new PatternParser(pattern).parseFieldSignaturePattern();
}
private void checkSerialization(SignaturePattern p) throws IOException {
ByteArrayOutputStream bo = new ByteArrayOutputStream();
ConstantPoolSimulator cps = new ConstantPoolSimulator();
CompressingDataOutputStream out = new CompressingDataOutputStream(bo, cps);
p.write(out);
out.close();
ByteArrayInputStream bi = new ByteArrayInputStream(bo.toByteArray());
VersionedDataInputStream in = new VersionedDataInputStream(bi, cps);
SignaturePattern newP = SignaturePattern.read(in, null);
assertEquals("write/read", p, newP);
}
}
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