- /*
- * @(#)DynEnumImpl.java 1.6 03/01/23
- *
- * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package com.sun.corba.se.internal.DynamicAny;
-
- import org.omg.CORBA.ORB;
- import org.omg.CORBA.TypeCode;
- import org.omg.CORBA.Any;
- import org.omg.CORBA.NO_IMPLEMENT;
- import org.omg.CORBA.OBJECT_NOT_EXIST;
- import org.omg.CORBA.BAD_OPERATION;
- import org.omg.CORBA.TypeCodePackage.BadKind;
- import org.omg.CORBA.TypeCodePackage.Bounds;
- import org.omg.DynamicAny.*;
- import org.omg.DynamicAny.DynAnyPackage.*;
-
- public class DynEnumImpl extends DynAnyBasicImpl implements DynEnum
- {
- //
- // Instance variables
- //
-
- // This int and the any value are kept in sync at all times
- int currentEnumeratorIndex = NO_INDEX;
-
- //
- // Constructors
- //
-
- private DynEnumImpl() {
- this(null, (Any)null, false);
- }
-
- // The current position of a DynEnum is always -1.
- protected DynEnumImpl(ORB orb, Any anAny, boolean copyValue) {
- super(orb, anAny, copyValue);
- index = NO_INDEX;
- // The any doesn't have to be initialized. We have a default value in this case.
- try {
- currentEnumeratorIndex = any.extract_long();
- } catch (BAD_OPERATION e) {
- currentEnumeratorIndex = 0;
- any.type(any.type());
- any.insert_long(0);
- }
- }
-
- // Sets the current position to -1 and sets the value of the enumerator
- // to the first enumerator value indicated by the TypeCode.
- protected DynEnumImpl(ORB orb, TypeCode typeCode) {
- super(orb, typeCode);
- index = NO_INDEX;
- currentEnumeratorIndex = 0;
- any.insert_long(0);
- }
-
- //
- // Utility methods
- //
-
- private int memberCount() {
- int memberCount = 0;
- try {
- memberCount = any.type().member_count();
- } catch (BadKind bad) {
- }
- return memberCount;
- }
-
- private String memberName(int i) {
- String memberName = null;
- try {
- memberName = any.type().member_name(i);
- } catch (BadKind bad) {
- } catch (Bounds bounds) {
- }
- return memberName;
- }
-
- private int computeCurrentEnumeratorIndex(String value) {
- int memberCount = memberCount();
- for (int i=0; i<memberCount; i++) {
- if (memberName(i).equals(value)) {
- return i;
- }
- }
- return NO_INDEX;
- }
-
- //
- // DynAny interface methods
- //
-
- // Returns always 0 for DynEnum
- public int component_count() {
- return 0;
- }
-
- // Calling current_component on a DynAny that cannot have components,
- // such as a DynEnum or an empty exception, raises TypeMismatch.
- public org.omg.DynamicAny.DynAny current_component()
- throws org.omg.DynamicAny.DynAnyPackage.TypeMismatch
- {
- if (status == STATUS_DESTROYED) {
- throw new OBJECT_NOT_EXIST();
- }
- throw new TypeMismatch();
- }
-
- //
- // DynEnum interface methods
- //
-
- // Returns the value of the DynEnum as an IDL identifier.
- public String get_as_string () {
- if (status == STATUS_DESTROYED) {
- throw new OBJECT_NOT_EXIST();
- }
- return memberName(currentEnumeratorIndex);
- }
-
- // Sets the value of the DynEnum to the enumerated value
- // whose IDL identifier is passed in the value parameter.
- // If value contains a string that is not a valid IDL identifier
- // for the corresponding enumerated type, the operation raises InvalidValue.
- public void set_as_string (String value)
- throws org.omg.DynamicAny.DynAnyPackage.InvalidValue
- {
- if (status == STATUS_DESTROYED) {
- throw new OBJECT_NOT_EXIST();
- }
- int newIndex = computeCurrentEnumeratorIndex(value);
- if (newIndex == NO_INDEX) {
- throw new InvalidValue();
- }
- currentEnumeratorIndex = newIndex;
- any.insert_long(newIndex);
- }
-
- // Returns the value of the DynEnum as the enumerated values ordinal value.
- // Enumerators have ordinal values 0 to n-1,
- // as they appear from left to right in the corresponding IDL definition.
- public int get_as_ulong () {
- if (status == STATUS_DESTROYED) {
- throw new OBJECT_NOT_EXIST();
- }
- return currentEnumeratorIndex;
- }
-
- // Sets the value of the DynEnum as the enumerated values ordinal value.
- // If value contains a value that is outside the range of ordinal values
- // for the corresponding enumerated type, the operation raises InvalidValue.
- public void set_as_ulong (int value)
- throws org.omg.DynamicAny.DynAnyPackage.InvalidValue
- {
- if (status == STATUS_DESTROYED) {
- throw new OBJECT_NOT_EXIST();
- }
- if (value < 0 || value >= memberCount()) {
- throw new InvalidValue();
- }
- currentEnumeratorIndex = value;
- any.insert_long(value);
- }
- }