corba/src/share/classes/sun/rmi/rmic/iiop/ImplementationType.java - edge/openjdk - Git at Google

 /*
  * 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;
     }
 }
	/*
	* 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;
	}
	}