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1: /* ServiceDetailHelper.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 org.omg.CORBA.portable.InputStream; 42: import org.omg.CORBA.portable.OutputStream; 43: import gnu.CORBA.*; 44: 45: /** 46: * The helper operations on the Service Detail. 47: * 48: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 49: */ 50: public abstract class ServiceDetailHelper 51: { 52: /** 53: * The service detail repository id. 54: */ 55: private static String _id = "IDL:omg.org/CORBA/ServiceDetail:1.0"; 56: 57: /** 58: * The cached typecode value, computed once. 59: */ 60: private static TypeCode typeCode; 61: 62: /** 63: * Extract the service detail info from the given {@link Any} 64: * 65: * @param a the Any to extract from. 66: * 67: * @return the extracted detail. 68: * 69: * @throws BAD_OPERATION if the parameter holds something different 70: * from the ServiceDetail. 71: */ 72: public static ServiceDetail extract(Any a) 73: { 74: try 75: { 76: return ((ServiceDetailHolder) a.extract_Streamable()).value; 77: } 78: catch (ClassCastException ex) 79: { 80: throw new BAD_OPERATION(); 81: } 82: } 83: 84: /** 85: * Get the service detail repository id. 86: * 87: * @return the service detail repository id, 88: * <code>IDL:omg.org/CORBA/ServiceDetail:1.0</code>, always. 89: */ 90: public static String id() 91: { 92: return _id; 93: } 94: 95: /** 96: * Insert the service detail into the given {@link Any}. 97: * 98: * @param a the Any to insert into. 99: * 100: * @param that the detail to insert. 101: */ 102: public static void insert(Any a, ServiceDetail that) 103: { 104: a.insert_Streamable(new ServiceDetailHolder(that)); 105: } 106: 107: /** 108: * Read the service detail information from the given CDR 109: * intput stream. First reads the type, then the flexible 110: * length byte sequence. 111: * 112: * @param istream a stram to read from. 113: * 114: * @return the loaded service detail. 115: */ 116: public static ServiceDetail read(InputStream istream) 117: { 118: ServiceDetail value = new ServiceDetail(); 119: value.service_detail_type = istream.read_ulong(); 120: 121: int l = istream.read_long(); 122: value.service_detail = new byte[ l ]; 123: istream.read_octet_array(value.service_detail, 0, l); 124: return value; 125: } 126: 127: /** 128: * Get the typecode of the service detail, assuming to be it 129: * a structure with the two fields. 130: * 131: * @return the newly created or cached typecode value. 132: */ 133: public static TypeCode type() 134: { 135: if (typeCode == null) 136: { 137: ORB orb = ORB.init(); 138: 139: StructMember[] members = new StructMember[ 2 ]; 140: 141: TypeCode type = 142: orb.create_alias_tc(_id, "ServiceDetailType", 143: orb.get_primitive_tc(TCKind.tk_ulong) 144: ); 145: members [ 0 ] = new StructMember("service_detail_type", type, null); 146: 147: TypeCode data = 148: orb.create_sequence_tc(0, orb.get_primitive_tc(TCKind.tk_octet)); 149: members [ 1 ] = new StructMember("service_detail", data, null); 150: 151: typeCode = orb.create_struct_tc(id(), "ServiceDetail", members); 152: } 153: return typeCode; 154: } 155: 156: /** 157: * Write the service detail data to the given CDR output stream. 158: * Writes the detail type first, then the detail type data 159: * as the variable length byte sequence. 160: * 161: * @param ostream a stream to write into. 162: * @param value a value to write. 163: */ 164: public static void write(OutputStream ostream, ServiceDetail value) 165: { 166: ostream.write_ulong(value.service_detail_type); 167: ostream.write_long(value.service_detail.length); 168: ostream.write_octet_array(value.service_detail, 0, 169: value.service_detail.length 170: ); 171: } 172: }
GNU Classpath (0.17) |