/protocols/ss7/m3ua/impl/src/main/java/org/mobicents/protocols/ss7/m3ua/impl/router/OPCNode.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.ss7.m3ua.impl.router;
24
25import javolution.util.FastList;
26
27import org.mobicents.protocols.ss7.m3ua.impl.As;
28
29/**
30 * 
31 * @author amit bhayani
32 * 
33 */
34public class OPCNode {
35
36    protected int dpc;
37    protected int opc;
38    protected FastList<SINode> siList = new FastList<SINode>();
39
40    // Reference to wild card SINode. If no matching SINode found for passed si
41    // and wildcard defined, use wildcard one.
42    private SINode wildCardSINode;
43
44    protected OPCNode(int dpc, int opc) {
45        this.dpc = dpc;
46        this.opc = opc;
47    }
48
49    protected void addSi(int si, As as) throws Exception {
50        for (FastList.Node<SINode> n = siList.head(), end = siList.tail(); (n = n.getNext()) != end;) {
51            SINode siNode = n.getValue();
52            if (siNode.si == si) {
53                throw new Exception(String.format("Service indicator %d already exist for OPC %d and DPC %d", si, opc,
54                        dpc));
55            }
56        }
57
58        SINode siNode = new SINode(si, as);
59        siList.add(siNode);
60
61        if (si == -1) {
62            wildCardSINode = siNode;
63        }
64    }
65
66    protected As getAs(short si) {
67        for (FastList.Node<SINode> n = siList.head(), end = siList.tail(); (n = n.getNext()) != end;) {
68            SINode siNode = n.getValue();
69            if (siNode.si == si) {
70                return siNode.as;
71            }
72        }
73
74        if (wildCardSINode != null) {
75            return wildCardSINode.as;
76        }
77        return null;
78    }
79}