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| package net.sourceforge.pmd.symboltable; |
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| import java.util.ArrayList; |
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| import java.util.HashMap; |
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| import java.util.HashSet; |
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| import java.util.Iterator; |
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| import java.util.List; |
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| import java.util.Map; |
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| import java.util.Set; |
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| public class TypeSet { |
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| public interface Resolver { |
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| Class resolve(String name) throws ClassNotFoundException; |
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| } |
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| public static class ExplicitImportResolver implements Resolver { |
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| private Set importStmts; |
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| |
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| public ExplicitImportResolver(Set importStmts) {
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| this.importStmts = importStmts;
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| } |
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| public Class resolve(String name) throws ClassNotFoundException {
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| for (Iterator i = importStmts.iterator(); i.hasNext();) {
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| String importStmt = (String) i.next();
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| if (importStmt.endsWith(name)) {
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| return Class.forName(importStmt);
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| } |
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| } |
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| throw new ClassNotFoundException("Type " + name + " not found");
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| } |
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| } |
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| public static class CurrentPackageResolver implements Resolver { |
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| private String pkg; |
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| public CurrentPackageResolver(String pkg) {
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| this.pkg = pkg;
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| } |
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| public Class resolve(String name) throws ClassNotFoundException {
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| return Class.forName(pkg + name);
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| } |
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| } |
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| public static class ImplicitImportResolver implements Resolver { |
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| public Class resolve(String name) throws ClassNotFoundException {
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| return Class.forName("java.lang." + name);
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| } |
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| } |
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| public static class ImportOnDemandResolver implements Resolver { |
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| private Set importStmts; |
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| public ImportOnDemandResolver(Set importStmts) {
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| this.importStmts = importStmts;
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| } |
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| public Class resolve(String name) throws ClassNotFoundException {
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| for (Iterator i = importStmts.iterator(); i.hasNext();) {
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| String importStmt = (String) i.next();
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| if (importStmt.endsWith("*")) {
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| try {
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| String importPkg = importStmt.substring(0, importStmt.indexOf("*") - 1);
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| return Class.forName(importPkg + "." + name);
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| } catch (ClassNotFoundException cnfe) { |
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| } |
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| } |
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| } |
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| throw new ClassNotFoundException("Type " + name + " not found");
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| } |
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| } |
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| public static class PrimitiveTypeResolver implements Resolver { |
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| private Map primitiveTypes = new HashMap(); |
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| public PrimitiveTypeResolver() {
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| primitiveTypes.put("int", int.class);
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| primitiveTypes.put("float", float.class);
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| primitiveTypes.put("double", double.class);
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| primitiveTypes.put("long", long.class);
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| primitiveTypes.put("boolean", boolean.class);
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| primitiveTypes.put("byte", byte.class);
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| primitiveTypes.put("short", short.class);
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| primitiveTypes.put("char", char.class);
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| } |
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| public Class resolve(String name) throws ClassNotFoundException {
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| if (!primitiveTypes.containsKey(name)) {
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| throw new ClassNotFoundException();
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| } |
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| return (Class) primitiveTypes.get(name);
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| } |
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| } |
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| public static class VoidResolver implements Resolver { |
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| public Class resolve(String name) throws ClassNotFoundException {
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| if (name.equals("void")) {
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| return void.class;
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| } |
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| throw new ClassNotFoundException();
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| } |
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| } |
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| public static class FullyQualifiedNameResolver implements Resolver { |
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| public Class resolve(String name) throws ClassNotFoundException {
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| return Class.forName(name);
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| } |
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| } |
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| private String pkg; |
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| private Set imports = new HashSet(); |
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| private List resolvers = new ArrayList(); |
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| public void setASTCompilationUnitPackage(String pkg) {
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| this.pkg = pkg;
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| } |
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| public String getASTCompilationUnitPackage() {
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| return pkg;
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| } |
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| public void addImport(String importString) {
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| imports.add(importString);
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| } |
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| public int getImportsCount() {
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| return imports.size();
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| } |
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| public Class findClass(String name) throws ClassNotFoundException {
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| if (resolvers.isEmpty()) {
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| buildResolvers();
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| } |
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| for (Iterator i = resolvers.iterator(); i.hasNext();) {
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| Resolver resolver = (Resolver) i.next();
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| try {
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| return resolver.resolve(name);
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| } catch (ClassNotFoundException cnfe) { |
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| } |
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| } |
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| throw new ClassNotFoundException("Type " + name + " not found");
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| } |
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| private void buildResolvers() {
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| resolvers.add(new PrimitiveTypeResolver());
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| resolvers.add(new VoidResolver());
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| resolvers.add(new ExplicitImportResolver(imports));
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| resolvers.add(new CurrentPackageResolver(pkg));
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| resolvers.add(new ImplicitImportResolver());
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| resolvers.add(new ImportOnDemandResolver(imports));
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| resolvers.add(new FullyQualifiedNameResolver());
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| } |
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| } |