1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.dynalink.support.test; 27 28 import static jdk.dynalink.StandardNamespace.PROPERTY; 29 import static jdk.dynalink.StandardOperation.GET; 30 31 import java.lang.invoke.CallSite; 32 import java.lang.invoke.MethodHandle; 33 import java.lang.invoke.MethodHandles; 34 import java.lang.invoke.MethodType; 35 import java.util.ArrayList; 36 import jdk.dynalink.CallSiteDescriptor; 37 import jdk.dynalink.DynamicLinker; 38 import jdk.dynalink.DynamicLinkerFactory; 39 import jdk.dynalink.Operation; 40 import jdk.dynalink.linker.GuardedInvocation; 41 import jdk.dynalink.support.SimpleRelinkableCallSite; 42 import org.testng.Assert; 43 import org.testng.annotations.Test; 44 45 public class CallSiteTest { 46 private static final Operation GET_PROPERTY = GET.withNamespace(PROPERTY); 47 48 @Test testInitialize()49 public void testInitialize() { 50 final DynamicLinkerFactory factory = new DynamicLinkerFactory(); 51 final DynamicLinker linker = factory.createLinker(); 52 final MethodType mt = MethodType.methodType(Object.class, Object.class); 53 final boolean[] initializeCalled = { Boolean.FALSE }; 54 linker.link(new SimpleRelinkableCallSite(new CallSiteDescriptor( 55 MethodHandles.publicLookup(), GET_PROPERTY.named("DO_NOT_CARE"), mt)) { 56 @Override 57 public void initialize(final MethodHandle relinkAndInvoke) { 58 initializeCalled[0] = Boolean.TRUE; 59 super.initialize(relinkAndInvoke); 60 } 61 }); 62 63 Assert.assertTrue(initializeCalled[0]); 64 } 65 66 @Test testRelink()67 public void testRelink() { 68 final DynamicLinkerFactory factory = new DynamicLinkerFactory(); 69 final DynamicLinker linker = factory.createLinker(); 70 final MethodType mt = MethodType.methodType(Object.class, Object.class); 71 final boolean[] relinkCalled = { Boolean.FALSE }; 72 final CallSite cs = linker.link(new SimpleRelinkableCallSite(new CallSiteDescriptor( 73 MethodHandles.publicLookup(), GET_PROPERTY.named("class"), mt)) { 74 @Override 75 public void relink(final GuardedInvocation guardedInvocation, final MethodHandle relinkAndInvoke) { 76 relinkCalled[0] = Boolean.TRUE; 77 super.relink(guardedInvocation, relinkAndInvoke); 78 } 79 }); 80 81 Assert.assertFalse(relinkCalled[0]); 82 try { 83 cs.getTarget().invoke(new Object()); 84 } catch (final Throwable th) {} 85 86 Assert.assertTrue(relinkCalled[0]); 87 } 88 89 @Test testResetAndRelink()90 public void testResetAndRelink() { 91 final DynamicLinkerFactory factory = new DynamicLinkerFactory(); 92 factory.setUnstableRelinkThreshold(1); 93 final DynamicLinker linker = factory.createLinker(); 94 final MethodType mt = MethodType.methodType(Object.class, Object.class); 95 final boolean[] resetAndRelinkCalled = { Boolean.FALSE }; 96 final CallSite cs = linker.link(new SimpleRelinkableCallSite(new CallSiteDescriptor( 97 MethodHandles.publicLookup(), GET_PROPERTY.named("length"), mt)) { 98 @Override 99 public void resetAndRelink(final GuardedInvocation guardedInvocation, final MethodHandle relinkAndInvoke) { 100 resetAndRelinkCalled[0] = Boolean.TRUE; 101 super.resetAndRelink(guardedInvocation, relinkAndInvoke); 102 } 103 }); 104 105 Assert.assertFalse(resetAndRelinkCalled[0]); 106 try { 107 cs.getTarget().invoke(new Object[] {}); 108 } catch (final Throwable th) {} 109 110 Assert.assertFalse(resetAndRelinkCalled[0]); 111 try { 112 cs.getTarget().invoke(new ArrayList<Object>()); 113 } catch (final Throwable th) {} 114 115 Assert.assertTrue(resetAndRelinkCalled[0]); 116 } 117 } 118