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/*
* Copyright (c) 2019, 2019, 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.
*/
package com.oracle.svm.hosted.config;
import java.lang.reflect.Executable;
import java.lang.reflect.Method;
import java.util.List;
import org.graalvm.nativeimage.impl.ConfigurationCondition;
import org.graalvm.nativeimage.impl.ReflectionRegistry;
import com.oracle.svm.core.TypeResult;
import com.oracle.svm.core.configure.ConditionalElement;
import com.oracle.svm.core.configure.ReflectionConfigurationParserDelegate;
import com.oracle.svm.hosted.ImageClassLoader;
import com.oracle.svm.util.ClassUtil;
import jdk.vm.ci.meta.MetaUtil;
public class ReflectionRegistryAdapter implements ReflectionConfigurationParserDelegate>> {
private final ReflectionRegistry registry;
private final ImageClassLoader classLoader;
public ReflectionRegistryAdapter(ReflectionRegistry registry, ImageClassLoader classLoader) {
this.registry = registry;
this.classLoader = classLoader;
}
@Override
public void registerType(ConditionalElement> type) {
registry.register(type.getCondition(), type.getElement());
}
@Override
public TypeResult resolveCondition(String typeName) {
String canonicalizedName = canonicalizeTypeName(typeName);
TypeResult> clazz = classLoader.findClass(canonicalizedName);
return clazz.map(Class::getTypeName)
.map(ConfigurationCondition::create);
}
@Override
public TypeResult>> resolveType(ConfigurationCondition condition, String typeName) {
String name = canonicalizeTypeName(typeName);
TypeResult> clazz = classLoader.findClass(name);
return clazz.map(c -> new ConditionalElement<>(condition, c));
}
private static String canonicalizeTypeName(String typeName) {
String name = typeName;
if (name.indexOf('[') != -1) {
/* accept "int[][]", "java.lang.String[]" */
name = MetaUtil.internalNameToJava(MetaUtil.toInternalName(name), true, true);
}
return name;
}
@Override
public void registerPublicClasses(ConditionalElement> type) {
registry.register(type.getCondition(), type.getElement().getClasses());
}
@Override
public void registerDeclaredClasses(ConditionalElement> type) {
registry.register(type.getCondition(), type.getElement().getDeclaredClasses());
}
@Override
public void registerPublicFields(ConditionalElement> type) {
registry.register(type.getCondition(), false, type.getElement().getFields());
}
@Override
public void registerDeclaredFields(ConditionalElement> type) {
registry.register(type.getCondition(), false, type.getElement().getDeclaredFields());
}
@Override
public void registerPublicMethods(boolean queriedOnly, ConditionalElement> type) {
registry.register(type.getCondition(), queriedOnly, type.getElement().getMethods());
}
@Override
public void registerDeclaredMethods(boolean queriedOnly, ConditionalElement> type) {
registry.register(type.getCondition(), queriedOnly, type.getElement().getDeclaredMethods());
}
@Override
public void registerPublicConstructors(boolean queriedOnly, ConditionalElement> type) {
registry.register(type.getCondition(), queriedOnly, type.getElement().getConstructors());
}
@Override
public void registerDeclaredConstructors(boolean queriedOnly, ConditionalElement> type) {
registry.register(type.getCondition(), queriedOnly, type.getElement().getDeclaredConstructors());
}
@Override
public void registerField(ConditionalElement> type, String fieldName, boolean allowWrite) throws NoSuchFieldException {
registry.register(type.getCondition(), allowWrite, type.getElement().getDeclaredField(fieldName));
}
@Override
public boolean registerAllMethodsWithName(boolean queriedOnly, ConditionalElement> type, String methodName) {
boolean found = false;
Executable[] methods = type.getElement().getDeclaredMethods();
for (Executable method : methods) {
if (method.getName().equals(methodName)) {
registerExecutable(type.getCondition(), queriedOnly, method);
found = true;
}
}
return found;
}
@Override
public boolean registerAllConstructors(boolean queriedOnly, ConditionalElement> type) {
Executable[] methods = type.getElement().getDeclaredConstructors();
registerExecutable(type.getCondition(), queriedOnly, methods);
return methods.length > 0;
}
@Override
public void registerMethod(boolean queriedOnly, ConditionalElement> type, String methodName, List>> methodParameterTypes) throws NoSuchMethodException {
Class[] parameterTypesArray = getParameterTypes(methodParameterTypes);
Method method;
try {
method = type.getElement().getDeclaredMethod(methodName, parameterTypesArray);
} catch (NoClassDefFoundError e) {
/*
* getDeclaredMethod() builds a set of all the declared methods, which can fail when a
* symbolic reference from another method to a type (via parameters, return value)
* cannot be resolved. getMethod() builds a different set of methods and can still
* succeed. This case must be handled for predefined classes when, during the run
* observed by the agent, a referenced class was not loaded and is not available now
* precisely because the application used getMethod() instead of getDeclaredMethod().
*/
try {
method = type.getElement().getMethod(methodName, parameterTypesArray);
} catch (Throwable ignored) {
throw e;
}
}
registerExecutable(type.getCondition(), queriedOnly, method);
}
@Override
public void registerConstructor(boolean queriedOnly, ConditionalElement> type, List>> methodParameterTypes) throws NoSuchMethodException {
Class[] parameterTypesArray = getParameterTypes(methodParameterTypes);
registerExecutable(type.getCondition(), queriedOnly, type.getElement().getDeclaredConstructor(parameterTypesArray));
}
private static Class[] getParameterTypes(List>> methodParameterTypes) {
return methodParameterTypes.stream()
.map(ConditionalElement::getElement)
.toArray(Class[]::new);
}
private void registerExecutable(ConfigurationCondition condition, boolean queriedOnly, Executable... executable) {
registry.register(condition, queriedOnly, executable);
}
@Override
public String getTypeName(ConditionalElement> type) {
return type.getElement().getTypeName();
}
@Override
public String getSimpleName(ConditionalElement> type) {
return ClassUtil.getUnqualifiedName(type.getElement());
}
}