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1: /* PolicyHelper.java -- 2: Copyright (C) 2005 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: 39: package org.omg.CORBA; 40: 41: import gnu.CORBA.Minor; 42: 43: import org.omg.CORBA.Any; 44: import org.omg.CORBA.BAD_OPERATION; 45: import org.omg.CORBA.ORB; 46: import org.omg.CORBA.StructMember; 47: import org.omg.CORBA.TCKind; 48: import org.omg.CORBA.TypeCode; 49: import org.omg.CORBA.portable.Delegate; 50: import org.omg.CORBA.portable.InputStream; 51: import org.omg.CORBA.portable.ObjectImpl; 52: import org.omg.CORBA.portable.OutputStream; 53: 54: /** 55: * The helper operations for the 56: * CORBA object {@link Policy}. 57: * 58: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 59: */ 60: public abstract class PolicyHelper 61: { 62: /** 63: * The cached {@link Policy} typecode, computed once. 64: */ 65: private static TypeCode typeCode; 66: 67: /** 68: * Get the type code of the {@link Policy}. 69: * 70: * @return interface typecode, named "Policy". 71: */ 72: public static TypeCode type() 73: { 74: if (typeCode == null) 75: typeCode = ORB.init().create_interface_tc(id(), "Policy"); 76: return typeCode; 77: } 78: 79: /** 80: * Insert the Policy into the given Any. 81: * 82: * @param any the Any to insert into. 83: * @param that the Policy to insert. 84: */ 85: public static void insert(Any any, Policy that) 86: { 87: any.insert_Streamable(new PolicyHolder(that)); 88: } 89: 90: /** 91: * Extract the Policy from given Any. 92: * 93: * @throws BAD_OPERATION if the passed Any does not contain Policy. 94: */ 95: public static Policy extract(Any any) 96: { 97: try 98: { 99: PolicyHolder h = (PolicyHolder) any.extract_Streamable(); 100: return h.value; 101: } 102: catch (ClassCastException ex) 103: { 104: BAD_OPERATION bad = new BAD_OPERATION("Policy expected"); 105: bad.minor = Minor.Any; 106: throw bad; 107: } 108: } 109: 110: /** 111: * Get the Policy repository id. 112: * 113: * @return "IDL:omg.org/CORBA/Policy:1.0", always. 114: */ 115: public static String id() 116: { 117: return "IDL:omg.org/CORBA/Policy:1.0"; 118: } 119: 120: /** 121: * Cast the passed object into the Policy. If the 122: * object has a different java type, create an instance 123: * of the _PolicyStub, using the same delegate, as for 124: * the passed parameter. Hence, unlike java type cast, 125: * this method may return a different object, than has been passed. 126: * 127: * @param obj the object to narrow. 128: * @return narrowed instance. 129: * @throws BAD_PARAM if the passed object is not a Policy. 130: */ 131: public static Policy narrow(org.omg.CORBA.Object obj) 132: { 133: if (obj == null) 134: return null; 135: else if (obj instanceof Policy) 136: return (Policy) obj; 137: else 138: { 139: // Check for the policy id cannot be performed because 140: // this helper must read various subclasses of the Policy, 141: // and the IOR profile currently supports only one id. 142: 143: Delegate delegate = ((ObjectImpl) obj)._get_delegate(); 144: return new _PolicyStub(delegate); 145: } 146: } 147: 148: /** 149: * Read the object from the CDR intput stream (IOR profile expected). 150: * 151: * @param input a org.omg.CORBA.portable stream to read from. 152: */ 153: public static Policy read(InputStream input) 154: { 155: return narrow(input.read_Object()); 156: } 157: 158: /** 159: * Write the object to the CDR output stream (as IOR profile). 160: * 161: * @param output a org.omg.CORBA.portable stream stream to write into. 162: * @param value a value to write. 163: */ 164: public static void write(OutputStream output, Policy value) 165: { 166: output.write_Object(value); 167: }
GNU Classpath (0.20) |