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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 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.InputStream; 50: import org.omg.CORBA.portable.OutputStream; 51: 52: /** 53: * A helper operations for the structure {@link IOR}. 54: * 55: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 56: */ 57: public abstract class IORHelper 58: { 59: /** 60: * The cached typecode value, computed only once. 61: */ 62: private static TypeCode typeCode; 63: 64: /** 65: * Create the IOR typecode (structure, 66: * named "IOR"). 67: * The typecode states that the structure contains the 68: * following fields: type_id, profiles. 69: */ 70: public static TypeCode type() 71: { 72: if (typeCode == null) 73: { 74: ORB orb = ORB.init(); 75: StructMember[] members = new StructMember[ 2 ]; 76: 77: TypeCode field; 78: 79: field = orb.get_primitive_tc(TCKind.tk_string); 80: members [ 0 ] = new StructMember("type_id", field, null); 81: 82: field = orb.create_sequence_tc(0, TaggedProfileHelper.type()); 83: members [ 1 ] = new StructMember("profiles", field, null); 84: typeCode = orb.create_struct_tc(id(), "IOR", members); 85: } 86: return typeCode; 87: } 88: 89: /** 90: * Insert the IOR into the given Any. 91: * This method uses the IORHolder. 92: * 93: * @param any the Any to insert into. 94: * @param that the IOR to insert. 95: */ 96: public static void insert(Any any, IOR that) 97: { 98: any.insert_Streamable(new IORHolder(that)); 99: } 100: 101: /** 102: * Extract the IOR from given Any. 103: * This method uses the IORHolder. 104: * 105: * @throws BAD_OPERATION if the passed Any does not contain IOR. 106: */ 107: public static IOR extract(Any any) 108: { 109: try 110: { 111: return ((IORHolder) any.extract_Streamable()).value; 112: } 113: catch (ClassCastException cex) 114: { 115: BAD_OPERATION bad = new BAD_OPERATION("IOR expected"); 116: bad.minor = Minor.Any; 117: bad.initCause(cex); 118: throw bad; 119: } 120: } 121: 122: /** 123: * Get the IOR repository id. 124: * 125: * @return "IDL:omg.org/IOP/IOR:1.0", always. 126: */ 127: public static String id() 128: { 129: return "IDL:omg.org/IOP/IOR:1.0"; 130: } 131: 132: /** 133: * Read the structure from the CDR intput stream. Expects repository 134: * it, then number of the tagged profiles and then the tagged profiles. 135: * Does not expect the endian indicator, present in the beginning of the 136: * stringified IOR references. 137: * 138: * @param input a org.omg.CORBA.portable stream to read from. 139: */ 140: public static IOR read(InputStream input) 141: { 142: IOR value = new IOR(); 143: value.type_id = input.read_string(); 144: value.profiles = new TaggedProfile[ input.read_long() ]; 145: for (int i0 = 0; i0 < value.profiles.length; i0++) 146: value.profiles [ i0 ] = TaggedProfileHelper.read(input); 147: return value; 148: } 149: 150: /** 151: * Write the structure to the CDR output stream. Writes 152: * Expects repository it, then number of the tagged profiles and then 153: * the tagged profiles. Will not write the endian indicator, present 154: * in the beginning of the stringified IOR references. 155: * 156: * @param output a org.omg.CORBA.portable stream stream to write into. 157: * @param value a value to write. 158: */ 159: public static void write(OutputStream output, IOR value) 160: { 161: output.write_string(value.type_id); 162: output.write_long(value.profiles.length); 163: for (int i0 = 0; i0 < value.profiles.length; i0++) 164: TaggedProfileHelper.write(output, value.profiles [ i0 ]); 165: }
GNU Classpath (0.20) |