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/*
* Copyright 2016 Federico Tomassetti
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.github.javaparser.symbolsolver.reflectionmodel;
import com.github.javaparser.ast.AccessSpecifier;
import com.github.javaparser.resolution.MethodUsage;
import com.github.javaparser.resolution.declarations.ResolvedMethodDeclaration;
import com.github.javaparser.resolution.declarations.ResolvedParameterDeclaration;
import com.github.javaparser.resolution.declarations.ResolvedReferenceTypeDeclaration;
import com.github.javaparser.resolution.declarations.ResolvedTypeParameterDeclaration;
import com.github.javaparser.resolution.types.ResolvedType;
import com.github.javaparser.symbolsolver.core.resolution.Context;
import com.github.javaparser.symbolsolver.declarations.common.MethodDeclarationCommonLogic;
import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
/**
* @author Federico Tomassetti
*/
public class ReflectionMethodDeclaration implements ResolvedMethodDeclaration {
private Method method;
private TypeSolver typeSolver;
public ReflectionMethodDeclaration(Method method, TypeSolver typeSolver) {
this.method = method;
if (method.isSynthetic() || method.isBridge()) {
throw new IllegalArgumentException();
}
this.typeSolver = typeSolver;
}
@Override
public String getName() {
return method.getName();
}
@Override
public boolean isField() {
return false;
}
@Override
public boolean isParameter() {
return false;
}
@Override
public String toString() {
return "ReflectionMethodDeclaration{" +
"method=" + method +
'}';
}
@Override
public boolean isType() {
return false;
}
@Override
public ResolvedReferenceTypeDeclaration declaringType() {
if (method.getDeclaringClass().isInterface()) {
return new ReflectionInterfaceDeclaration(method.getDeclaringClass(), typeSolver);
}
if (method.getDeclaringClass().isEnum()) {
return new ReflectionEnumDeclaration(method.getDeclaringClass(), typeSolver);
} else {
return new ReflectionClassDeclaration(method.getDeclaringClass(), typeSolver);
}
}
@Override
public ResolvedType getReturnType() {
return ReflectionFactory.typeUsageFor(method.getGenericReturnType(), typeSolver);
}
@Override
public int getNumberOfParams() {
return method.getParameterTypes().length;
}
@Override
public ResolvedParameterDeclaration getParam(int i) {
boolean variadic = false;
if (method.isVarArgs()) {
variadic = i == (method.getParameterCount() - 1);
}
return new ReflectionParameterDeclaration(method.getParameterTypes()[i], method.getGenericParameterTypes()[i], typeSolver, variadic);
}
@Override
public List<ResolvedTypeParameterDeclaration> getTypeParameters() {
return Arrays.stream(method.getTypeParameters()).map((refTp) -> new ReflectionTypeParameter(refTp, false, typeSolver)).collect(Collectors.toList());
}
public MethodUsage resolveTypeVariables(Context context, List<ResolvedType> parameterTypes) {
return new MethodDeclarationCommonLogic(this, typeSolver).resolveTypeVariables(context, parameterTypes);
}
@Override
public boolean isAbstract() {
return Modifier.isAbstract(method.getModifiers());
}
@Override
public boolean isDefaultMethod() {
return method.isDefault();
}
@Override
public boolean isStatic() {
return Modifier.isStatic(method.getModifiers());
}
@Override
public AccessSpecifier accessSpecifier() {
return ReflectionFactory.modifiersToAccessLevel(this.method.getModifiers());
}
@Override
public int getNumberOfSpecifiedExceptions() {
return this.method.getExceptionTypes().length;
}
@Override
public ResolvedType getSpecifiedException(int index) {
if (index < 0 || index >= getNumberOfSpecifiedExceptions()) {
throw new IllegalArgumentException();
}
return ReflectionFactory.typeUsageFor(this.method.getExceptionTypes()[index], typeSolver);
}
}
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