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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.ServiceDetailHolder; 43: 44: import org.omg.CORBA.portable.InputStream; 45: import org.omg.CORBA.portable.OutputStream; 46: 47: /** 48: * The helper operations on the Service Detail. 49: * 50: * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) 51: */ 52: public abstract class ServiceDetailHelper 53: { 54: /** 55: * The service detail repository id. 56: */ 57: private static String _id = "IDL:omg.org/CORBA/ServiceDetail:1.0"; 58: 59: /** 60: * The cached typecode value, computed once. 61: */ 62: private static TypeCode typeCode; 63: 64: /** 65: * Extract the service detail info from the given {@link Any} 66: * 67: * @param a the Any to extract from. 68: * 69: * @return the extracted detail. 70: * 71: * @throws BAD_OPERATION if the parameter holds something different 72: * from the ServiceDetail. 73: */ 74: public static ServiceDetail extract(Any a) 75: { 76: try 77: { 78: return ((ServiceDetailHolder) a.extract_Streamable()).value; 79: } 80: catch (ClassCastException ex) 81: { 82: BAD_OPERATION bad = new BAD_OPERATION(); 83: bad.initCause(ex); 84: bad.minor = Minor.Any; 85: throw bad; 86: } 87: } 88: 89: /** 90: * Get the service detail repository id. 91: * 92: * @return the service detail repository id, 93: * <code>IDL:omg.org/CORBA/ServiceDetail:1.0</code>, always. 94: */ 95: public static String id() 96: { 97: return _id; 98: } 99: 100: /** 101: * Insert the service detail into the given {@link Any}. 102: * 103: * @param a the Any to insert into. 104: * 105: * @param that the detail to insert. 106: */ 107: public static void insert(Any a, ServiceDetail that) 108: { 109: a.insert_Streamable(new ServiceDetailHolder(that)); 110: } 111: 112: /** 113: * Read the service detail information from the given CDR 114: * intput stream. First reads the type, then the flexible 115: * length byte sequence. 116: * 117: * @param istream a stram to read from. 118: * 119: * @return the loaded service detail. 120: */ 121: public static ServiceDetail read(InputStream istream) 122: { 123: ServiceDetail value = new ServiceDetail(); 124: value.service_detail_type = istream.read_ulong(); 125: 126: int l = istream.read_long(); 127: value.service_detail = new byte[ l ]; 128: istream.read_octet_array(value.service_detail, 0, l); 129: return value; 130: } 131: 132: /** 133: * Get the typecode of the service detail, assuming to be it 134: * a structure with the two fields. 135: * 136: * @return the newly created or cached typecode value. 137: */ 138: public static TypeCode type() 139: { 140: if (typeCode == null) 141: { 142: ORB orb = ORB.init(); 143: 144: StructMember[] members = new StructMember[ 2 ]; 145: 146: TypeCode type = 147: orb.create_alias_tc(_id, "ServiceDetailType", 148: orb.get_primitive_tc(TCKind.tk_ulong) 149: ); 150: members [ 0 ] = new StructMember("service_detail_type", type, null); 151: 152: TypeCode data = 153: orb.create_sequence_tc(0, orb.get_primitive_tc(TCKind.tk_octet)); 154: members [ 1 ] = new StructMember("service_detail", data, null); 155: 156: typeCode = orb.create_struct_tc(id(), "ServiceDetail", members); 157: } 158: return typeCode; 159: } 160: 161: /** 162: * Write the service detail data to the given CDR output stream. 163: * Writes the detail type first, then the detail type data 164: * as the variable length byte sequence. 165: * 166: * @param ostream a stream to write into. 167: * @param value a value to write. 168: */ 169: public static void write(OutputStream ostream, ServiceDetail value) 170: { 171: ostream.write_ulong(value.service_detail_type); 172: ostream.write_long(value.service_detail.length); 173: ostream.write_octet_array(value.service_detail, 0, 174: value.service_detail.length 175: ); 176: }
GNU Classpath (0.20) |