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/*
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import static jdk.dynalink.StandardNamespace.PROPERTY;
import static jdk.dynalink.StandardOperation.GET;
import java.lang.invoke.CallSite;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.util.ArrayList;
import jdk.dynalink.CallSiteDescriptor;
import jdk.dynalink.DynamicLinker;
import jdk.dynalink.DynamicLinkerFactory;
import jdk.dynalink.Operation;
import jdk.dynalink.linker.GuardedInvocation;
import jdk.dynalink.support.SimpleRelinkableCallSite;
import org.testng.Assert;
import org.testng.annotations.Test;
/**
* @test
* @run testng CallSiteTest
*/
public class CallSiteTest {
private static final Operation GET_PROPERTY = GET.withNamespace(PROPERTY);
@Test
public void testInitialize() {
final DynamicLinkerFactory factory = new DynamicLinkerFactory();
final DynamicLinker linker = factory.createLinker();
final MethodType mt = MethodType.methodType(Object.class, Object.class);
final boolean[] initializeCalled = { Boolean.FALSE };
linker.link(new SimpleRelinkableCallSite(new CallSiteDescriptor(
MethodHandles.publicLookup(), GET_PROPERTY.named("DO_NOT_CARE"), mt)) {
@Override
public void initialize(final MethodHandle relinkAndInvoke) {
initializeCalled[0] = Boolean.TRUE;
super.initialize(relinkAndInvoke);
}
});
Assert.assertTrue(initializeCalled[0]);
}
@Test
public void testRelink() {
final DynamicLinkerFactory factory = new DynamicLinkerFactory();
final DynamicLinker linker = factory.createLinker();
final MethodType mt = MethodType.methodType(Object.class, Object.class);
final boolean[] relinkCalled = { Boolean.FALSE };
final CallSite cs = linker.link(new SimpleRelinkableCallSite(new CallSiteDescriptor(
MethodHandles.publicLookup(), GET_PROPERTY.named("class"), mt)) {
@Override
public void relink(final GuardedInvocation guardedInvocation, final MethodHandle relinkAndInvoke) {
relinkCalled[0] = Boolean.TRUE;
super.relink(guardedInvocation, relinkAndInvoke);
}
});
Assert.assertFalse(relinkCalled[0]);
try {
cs.getTarget().invoke(new Object());
} catch (final Throwable th) {}
Assert.assertTrue(relinkCalled[0]);
}
@Test
public void testResetAndRelink() {
final DynamicLinkerFactory factory = new DynamicLinkerFactory();
factory.setUnstableRelinkThreshold(1);
final DynamicLinker linker = factory.createLinker();
final MethodType mt = MethodType.methodType(Object.class, Object.class);
final boolean[] resetAndRelinkCalled = { Boolean.FALSE };
final CallSite cs = linker.link(new SimpleRelinkableCallSite(new CallSiteDescriptor(
MethodHandles.publicLookup(), GET_PROPERTY.named("length"), mt)) {
@Override
public void resetAndRelink(final GuardedInvocation guardedInvocation, final MethodHandle relinkAndInvoke) {
resetAndRelinkCalled[0] = Boolean.TRUE;
super.resetAndRelink(guardedInvocation, relinkAndInvoke);
}
});
Assert.assertFalse(resetAndRelinkCalled[0]);
try {
cs.getTarget().invoke(new Object[] {});
} catch (final Throwable th) {}
Assert.assertFalse(resetAndRelinkCalled[0]);
try {
cs.getTarget().invoke(new ArrayList<Object>());
} catch (final Throwable th) {}
Assert.assertTrue(resetAndRelinkCalled[0]);
}
}
¤ Dauer der Verarbeitung: 0.24 Sekunden
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