001 /* ServiceDetailHelper.java --
002 Copyright (C) 2005 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
011 GNU Classpath is distributed in the hope that it will be useful, but
012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
016 You should have received a copy of the GNU General Public License
017 along with GNU Classpath; see the file COPYING. If not, write to the
018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038
039 package org.omg.CORBA;
040
041 import gnu.CORBA.Minor;
042 import gnu.CORBA.OrbRestricted;
043 import gnu.CORBA.ServiceDetailHolder;
044
045 import org.omg.CORBA.portable.InputStream;
046 import org.omg.CORBA.portable.OutputStream;
047
048 /**
049 * The helper operations on the Service Detail.
050 *
051 * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
052 */
053 public abstract class ServiceDetailHelper
054 {
055 /**
056 * The service detail repository id.
057 */
058 private static String _id = "IDL:omg.org/CORBA/ServiceDetail:1.0";
059
060 /**
061 * Extract the service detail info from the given {@link Any}
062 *
063 * @param a the Any to extract from.
064 *
065 * @return the extracted detail.
066 *
067 * @throws BAD_OPERATION if the parameter holds something different
068 * from the ServiceDetail.
069 */
070 public static ServiceDetail extract(Any a)
071 {
072 try
073 {
074 return ((ServiceDetailHolder) a.extract_Streamable()).value;
075 }
076 catch (ClassCastException ex)
077 {
078 BAD_OPERATION bad = new BAD_OPERATION();
079 bad.initCause(ex);
080 bad.minor = Minor.Any;
081 throw bad;
082 }
083 }
084
085 /**
086 * Get the service detail repository id.
087 *
088 * @return the service detail repository id,
089 * <code>IDL:omg.org/CORBA/ServiceDetail:1.0</code>, always.
090 */
091 public static String id()
092 {
093 return _id;
094 }
095
096 /**
097 * Insert the service detail into the given {@link Any}.
098 *
099 * @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 }