corba/src/share/classes/sun/rmi/rmic/iiop/ImplementationType.java
changeset 4 02bb8761fcce
child 5555 b2b5ed3f0d0d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/corba/src/share/classes/sun/rmi/rmic/iiop/ImplementationType.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,292 @@
+/*
+ * Portions Copyright 1998-2007 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.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;
+    }
+}