1 /* 2 * Copyright 2016 Federico Tomassetti 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.github.javaparser.symbolsolver.resolution.typesolvers; 18 19 import com.github.javaparser.resolution.declarations.ResolvedReferenceTypeDeclaration; 20 import com.github.javaparser.symbolsolver.model.resolution.SymbolReference; 21 import com.github.javaparser.symbolsolver.model.resolution.TypeSolver; 22 import com.github.javaparser.symbolsolver.reflectionmodel.ReflectionFactory; 23 24 import java.util.Optional; 25 26 /** 27 * @author Federico Tomassetti 28 */ 29 public class ReflectionTypeSolver implements TypeSolver { 30 31 private TypeSolver parent; 32 33 public ReflectionTypeSolver(boolean jreOnly) { 34 this.jreOnly = jreOnly; 35 } 36 37 public ReflectionTypeSolver() { 38 this(true); 39 } 40 41 private boolean jreOnly; 42 43 @Override 44 public TypeSolver getParent() { 45 return parent; 46 } 47 48 @Override 49 public void setParent(TypeSolver parent) { 50 this.parent = parent; 51 } 52 53 @Override 54 public SymbolReference<ResolvedReferenceTypeDeclaration> tryToSolveType(String name) { 55 if (!jreOnly || (name.startsWith("java.") || name.startsWith("javax."))) { 56 try { 57 ClassLoader classLoader = ReflectionTypeSolver.class.getClassLoader(); 58 59 // Some implementations could return null when the class was loaded through the bootstrap classloader 60 // see https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html#getClassLoader-- 61 if (classLoader == null) { 62 throw new RuntimeException("The ReflectionTypeSolver has been probably loaded through the bootstrap class loader. This usage is not supported by the JavaSymbolSolver"); 63 } 64 65 Class<?> clazz = classLoader.loadClass(name); 66 return SymbolReference.solved(ReflectionFactory.typeDeclarationFor(clazz, getRoot())); 67 } catch (ClassNotFoundException e) { 68 // it could be an inner class 69 int lastDot = name.lastIndexOf('.'); 70 if (lastDot == -1) { 71 return SymbolReference.unsolved(ResolvedReferenceTypeDeclaration.class); 72 } else { 73 String parentName = name.substring(0, lastDot); 74 String childName = name.substring(lastDot + 1); 75 SymbolReference<ResolvedReferenceTypeDeclaration> parent = tryToSolveType(parentName); 76 if (parent.isSolved()) { 77 Optional<ResolvedReferenceTypeDeclaration> innerClass = parent.getCorrespondingDeclaration().internalTypes() 78 .stream().filter(it -> it.getName().equals(childName)).findFirst(); 79 if (innerClass.isPresent()) { 80 return SymbolReference.solved(innerClass.get()); 81 } else { 82 return SymbolReference.unsolved(ResolvedReferenceTypeDeclaration.class); 83 } 84 } else { 85 return SymbolReference.unsolved(ResolvedReferenceTypeDeclaration.class); 86 } 87 } 88 } 89 } else { 90 return SymbolReference.unsolved(ResolvedReferenceTypeDeclaration.class); 91 } 92 } 93 94 } 95
