| /* |
| * Copyright (c) 1998, 2007, 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. |
| */ |
| |
| /* |
| * Licensed Materials - Property of IBM |
| * RMI-IIOP v1.0 |
| * Copyright IBM Corp. 1998 1999 All Rights Reserved |
| * |
| */ |
| |
| package sun.rmi.rmic.iiop; |
| |
| import java.util.Vector; |
| import sun.tools.java.CompilerError; |
| import sun.tools.java.ClassNotFound; |
| import sun.tools.java.ClassDefinition; |
| import sun.tools.java.MemberDefinition; |
| |
| /** |
| * ImplementationType represents any non-special class which implements |
| * one or more interfaces which inherit from java.rmi.Remote. |
| * <p> |
| * The static forImplementation(...) method must be used to obtain an instance, |
| * and will return null if the ClassDefinition is non-conforming. |
| * |
| * @author Bryan Atsatt |
| */ |
| public class ImplementationType extends ClassType { |
| |
| //_____________________________________________________________________ |
| // Public Interfaces |
| //_____________________________________________________________________ |
| |
| /** |
| * Create an ImplementationType for the given class. |
| * |
| * If the class is not a properly formed or if some other error occurs, the |
| * return value will be null, and errors will have been reported to the |
| * supplied BatchEnvironment. |
| */ |
| public static ImplementationType forImplementation(ClassDefinition classDef, |
| ContextStack stack, |
| boolean quiet) { |
| if (stack.anyErrors()) return null; |
| |
| boolean doPop = false; |
| ImplementationType result = null; |
| |
| try { |
| // Do we already have it? |
| |
| sun.tools.java.Type theType = classDef.getType(); |
| Type existing = getType(theType,stack); |
| |
| if (existing != null) { |
| |
| if (!(existing instanceof ImplementationType)) return null; // False hit. |
| |
| // Yep, so return it... |
| |
| return (ImplementationType) existing; |
| |
| } |
| |
| // Could this be an implementation? |
| |
| if (couldBeImplementation(quiet,stack,classDef)) { |
| |
| // Yes, so check it... |
| |
| ImplementationType it = new ImplementationType(stack, classDef); |
| putType(theType,it,stack); |
| stack.push(it); |
| doPop = true; |
| |
| if (it.initialize(stack,quiet)) { |
| stack.pop(true); |
| result = it; |
| } else { |
| removeType(theType,stack); |
| stack.pop(false); |
| } |
| } |
| } catch (CompilerError e) { |
| if (doPop) stack.pop(false); |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Return a string describing this type. |
| */ |
| public String getTypeDescription () { |
| return "Implementation"; |
| } |
| |
| |
| //_____________________________________________________________________ |
| // Internal Interfaces |
| //_____________________________________________________________________ |
| |
| /** |
| * Create a ImplementationType instance for the given class. The resulting |
| * object is not yet completely initialized. |
| */ |
| private ImplementationType(ContextStack stack, ClassDefinition classDef) { |
| super(TYPE_IMPLEMENTATION | TM_CLASS | TM_COMPOUND,classDef,stack); // Use special constructor. |
| } |
| |
| |
| private static boolean couldBeImplementation(boolean quiet, ContextStack stack, |
| ClassDefinition classDef) { |
| boolean result = false; |
| BatchEnvironment env = stack.getEnv(); |
| |
| try { |
| if (!classDef.isClass()) { |
| failedConstraint(17,quiet,stack,classDef.getName()); |
| } else { |
| result = env.defRemote.implementedBy(env, classDef.getClassDeclaration()); |
| if (!result) failedConstraint(8,quiet,stack,classDef.getName()); |
| } |
| } catch (ClassNotFound e) { |
| classNotFound(stack,e); |
| } |
| |
| return result; |
| } |
| |
| |
| /** |
| * Initialize this instance. |
| */ |
| private boolean initialize (ContextStack stack, boolean quiet) { |
| |
| boolean result = false; |
| ClassDefinition theClass = getClassDefinition(); |
| |
| if (initParents(stack)) { |
| |
| // Make up our collections... |
| |
| Vector directInterfaces = new Vector(); |
| Vector directMethods = new Vector(); |
| |
| // Check interfaces... |
| |
| try { |
| if (addRemoteInterfaces(directInterfaces,true,stack) != null) { |
| |
| boolean haveRemote = false; |
| |
| // Get methods from all interfaces... |
| |
| for (int i = 0; i < directInterfaces.size(); i++) { |
| InterfaceType theInt = (InterfaceType) directInterfaces.elementAt(i); |
| if (theInt.isType(TYPE_REMOTE) || |
| theInt.isType(TYPE_JAVA_RMI_REMOTE)) { |
| haveRemote = true; |
| } |
| |
| copyRemoteMethods(theInt,directMethods); |
| } |
| |
| // Make sure we have at least one remote interface... |
| |
| if (!haveRemote) { |
| failedConstraint(8,quiet,stack,getQualifiedName()); |
| return false; |
| } |
| |
| // Now check the methods to ensure we have the |
| // correct throws clauses... |
| |
| if (checkMethods(theClass,directMethods,stack,quiet)) { |
| |
| // We're ok, so pass 'em up... |
| |
| result = initialize(directInterfaces,directMethods,null,stack,quiet); |
| } |
| } |
| } catch (ClassNotFound e) { |
| classNotFound(stack,e); |
| } |
| } |
| |
| return result; |
| } |
| |
| private static void copyRemoteMethods(InterfaceType type, Vector list) { |
| |
| if (type.isType(TYPE_REMOTE)) { |
| |
| // Copy all the unique methods from type... |
| |
| Method[] allMethods = type.getMethods(); |
| |
| for (int i = 0; i < allMethods.length; i++) { |
| Method theMethod = allMethods[i]; |
| |
| if (!list.contains(theMethod)) { |
| list.addElement(theMethod); |
| } |
| } |
| |
| // Now recurse thru all inherited interfaces... |
| |
| InterfaceType[] allInterfaces = type.getInterfaces(); |
| |
| for (int i = 0; i < allInterfaces.length; i++) { |
| copyRemoteMethods(allInterfaces[i],list); |
| } |
| } |
| } |
| |
| // Walk all methods of the class, and for each that is already in |
| // the list, call setImplExceptions()... |
| |
| private boolean checkMethods(ClassDefinition theClass, Vector list, |
| ContextStack stack, boolean quiet) { |
| |
| // Convert vector to array... |
| |
| Method[] methods = new Method[list.size()]; |
| list.copyInto(methods); |
| |
| for (MemberDefinition member = theClass.getFirstMember(); |
| member != null; |
| member = member.getNextMember()) { |
| |
| if (member.isMethod() && !member.isConstructor() |
| && !member.isInitializer()) { |
| |
| // It's a method... |
| |
| if (!updateExceptions(member,methods,stack,quiet)) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| private boolean updateExceptions (MemberDefinition implMethod, Method[] list, |
| ContextStack stack, boolean quiet) { |
| int length = list.length; |
| String implMethodSig = implMethod.toString(); |
| |
| for (int i = 0; i < length; i++) { |
| Method existingMethod = list[i]; |
| MemberDefinition existing = existingMethod.getMemberDefinition(); |
| |
| // Do we have a matching method? |
| |
| if (implMethodSig.equals(existing.toString())) { |
| |
| // Yes, so create exception list... |
| |
| try { |
| ValueType[] implExcept = getMethodExceptions(implMethod,quiet,stack); |
| existingMethod.setImplExceptions(implExcept); |
| } catch (Exception e) { |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| } |