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1: /* IORHelper.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.IOP; 40: 41: import org.omg.CORBA.Any; 42: import org.omg.CORBA.BAD_OPERATION; 43: import org.omg.CORBA.ORB; 44: import org.omg.CORBA.StructMember; 45: import org.omg.CORBA.TCKind; 46: import org.omg.CORBA.TypeCode; 47: import org.omg.CORBA.portable.InputStream; 48: import org.omg.CORBA.portable.OutputStream; 49: 50: /** 51: * A helper operations for the structure {@link IOR}. 52: * 53: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 54: */ 55: public abstract class IORHelper 56: { 57: /** 58: * The cached typecode value, computed only once. 59: */ 60: private static TypeCode typeCode; 61: 62: /** 63: * Create the IOR typecode (structure, 64: * named "IOR"). 65: * The typecode states that the structure contains the 66: * following fields: type_id, profiles. 67: */ 68: public static TypeCode type() 69: { 70: if (typeCode == null) 71: { 72: ORB orb = ORB.init(); 73: StructMember[] members = new StructMember[ 2 ]; 74: 75: TypeCode field; 76: 77: field = orb.get_primitive_tc(TCKind.tk_string); 78: members [ 0 ] = new StructMember("type_id", field, null); 79: 80: field = orb.create_sequence_tc(0, TaggedProfileHelper.type()); 81: members [ 1 ] = new StructMember("profiles", field, null); 82: typeCode = orb.create_struct_tc(id(), "IOR", members); 83: } 84: return typeCode; 85: } 86: 87: /** 88: * Insert the IOR into the given Any. 89: * This method uses the IORHolder. 90: * 91: * @param any the Any to insert into. 92: * @param that the IOR to insert. 93: */ 94: public static void insert(Any any, IOR that) 95: { 96: any.insert_Streamable(new IORHolder(that)); 97: } 98: 99: /** 100: * Extract the IOR from given Any. 101: * This method uses the IORHolder. 102: * 103: * @throws BAD_OPERATION if the passed Any does not contain IOR. 104: */ 105: public static IOR extract(Any any) 106: { 107: try 108: { 109: return ((IORHolder) any.extract_Streamable()).value; 110: } 111: catch (ClassCastException cex) 112: { 113: BAD_OPERATION bad = new BAD_OPERATION("IOR expected"); 114: bad.initCause(cex); 115: throw bad; 116: } 117: } 118: 119: /** 120: * Get the IOR repository id. 121: * 122: * @return "IDL:omg.org/IOP/IOR:1.0", always. 123: */ 124: public static String id() 125: { 126: return "IDL:omg.org/IOP/IOR:1.0"; 127: } 128: 129: /** 130: * Read the structure from the CDR intput stream. Expects repository 131: * it, then number of the tagged profiles and then the tagged profiles. 132: * Does not expect the endian indicator, present in the beginning of the 133: * stringified IOR references. 134: * 135: * @param input a org.omg.CORBA.portable stream to read from. 136: */ 137: public static IOR read(InputStream input) 138: { 139: IOR value = new IOR(); 140: value.type_id = input.read_string(); 141: value.profiles = new TaggedProfile[ input.read_long() ]; 142: for (int i0 = 0; i0 < value.profiles.length; i0++) 143: value.profiles [ i0 ] = TaggedProfileHelper.read(input); 144: return value; 145: } 146: 147: /** 148: * Write the structure to the CDR output stream. Writes 149: * Expects repository it, then number of the tagged profiles and then 150: * the tagged profiles. Will not write the endian indicator, present 151: * in the beginning of the stringified IOR references. 152: * 153: * @param output a org.omg.CORBA.portable stream stream to write into. 154: * @param value a value to write. 155: */ 156: public static void write(OutputStream output, IOR value) 157: { 158: output.write_string(value.type_id); 159: output.write_long(value.profiles.length); 160: for (int i0 = 0; i0 < value.profiles.length; i0++) 161: TaggedProfileHelper.write(output, value.profiles [ i0 ]); 162: }
GNU Classpath (0.18) |