/protocols/smpp/src/main/java/org/mobicents/protocols/smpp/message/param/StringParamDescriptor.java

 1/*
 2 * JBoss, Home of Professional Open Source
 3 * Copyright 2011, Red Hat, Inc. and individual contributors
 4 * by the @authors tag. See the copyright.txt in the distribution for a
 5 * full listing of individual contributors.
 6 *
 7 * This is free software; you can redistribute it and/or modify it
 8 * under the terms of the GNU Lesser General Public License as
 9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22
23package org.mobicents.protocols.smpp.message.param;
24
25import java.io.IOException;
26
27import org.mobicents.protocols.smpp.util.PacketDecoder;
28import org.mobicents.protocols.smpp.util.PacketEncoder;
29
30public class StringParamDescriptor extends AbstractDescriptor {
31    private static final long serialVersionUID = 2L;
32    private int linkIndex;
33    
34    public StringParamDescriptor(int linkIndex) {
35        this.linkIndex = linkIndex;
36    }
37    
38    public int getLengthSpecifier() {
39        return linkIndex;
40    }
41    
42    public int sizeOf(Object obj) {
43        if (obj != null) {
44            return ((String) obj).length();
45        } else {
46            return 0;
47        }
48    }
49
50    public void writeObject(Object obj, PacketEncoder encoder) throws IOException {
51        if (obj != null) {
52            String s = obj.toString();
53            encoder.writeString(s, s.length());
54        }
55    }
56
57    public Object readObject(PacketDecoder decoder, int length) {
58        return decoder.readString(length);
59    }
60}