/*
* Copyright (c) 2017, 2017, 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.
*
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package com.oracle.svm.core.hub;
import java.util.HashMap;
import java.util.Map;
import org.graalvm.nativeimage.ImageSingletons;
import org.graalvm.nativeimage.Platform;
import org.graalvm.nativeimage.Platforms;
import org.graalvm.nativeimage.hosted.Feature;
import com.oracle.svm.core.annotate.AutomaticFeature;
public final class ClassForNameSupport {
private final Map<String, Class<?>> knownClasses = new HashMap<>();
@Platforms(Platform.HOSTED_ONLY.class)
public static void registerClass(Class<?> clazz) {
ImageSingletons.lookup(ClassForNameSupport.class).knownClasses.put(clazz.getName(), clazz);
}
public static Class<?> forNameOrNull(String className, boolean initialize) {
Class<?> result = ImageSingletons.lookup(ClassForNameSupport.class).knownClasses.get(className);
if (result == null) {
return null;
}
if (initialize) {
DynamicHub.fromClass(result).ensureInitialized();
}
return result;
}
public static Class<?> forName(String className, boolean initialize) throws ClassNotFoundException {
Class<?> result = forNameOrNull(className, initialize);
if (result == null) {
throw new ClassNotFoundException(className);
}
return result;
}
}
@AutomaticFeature
class ClassForNameFeature implements Feature {
@Override
public void afterRegistration(AfterRegistrationAccess access) {
ImageSingletons.add(ClassForNameSupport.class, new ClassForNameSupport());
}
}