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