Source Code Cross Referenced for TargetIPv6.java in  » Net » GNetWatch » net » fenyo » gnetwatch » targets » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Net » GNetWatch » net.fenyo.gnetwatch.targets 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * GNetWatch
003:         * Copyright 2006, 2007 Alexandre Fenyo
004:         * gnetwatch@fenyo.net
005:         *
006:         * This file is part of GNetWatch.
007:         *
008:         * GNetWatch is free software; you can redistribute it and/or modify
009:         * it under the terms of the GNU General Public License as published by
010:         * the Free Software Foundation; either version 2 of the License, or
011:         * (at your option) any later version.
012:         *
013:         * GNetWatch is distributed in the hope that it will be useful,
014:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
015:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
016:         * GNU General Public License for more details.
017:         *
018:         * You should have received a copy of the GNU General Public License
019:         * along with GNetWatch; if not, write to the Free Software
020:         * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
021:         */
022:
023:        package net.fenyo.gnetwatch.targets;
024:
025:        import net.fenyo.gnetwatch.*;
026:        import net.fenyo.gnetwatch.GUI.GUI;
027:        import net.fenyo.gnetwatch.GUI.VisualElement;
028:        import net.fenyo.gnetwatch.actions.*;
029:        import net.fenyo.gnetwatch.data.EventReachable;
030:
031:        import org.apache.commons.logging.Log;
032:        import org.apache.commons.logging.LogFactory;
033:        import org.snmp4j.event.ResponseEvent;
034:
035:        import java.net.*;
036:
037:        /**
038:         * TargetIPv4 implements an IPv6 capable target.
039:         * @author Alexandre Fenyo
040:         * @version $Id: TargetIPv6.java,v 1.14 2007/03/09 22:44:20 fenyo Exp $
041:         */
042:
043:        public class TargetIPv6 extends Target {
044:            private static Log log = LogFactory.getLog(TargetIPv4.class);
045:
046:            private Inet6Address address; // not null
047:            private SNMPQuerier snmp_querier;
048:            private IPQuerier ip_querier;
049:
050:            /**
051:             * Constructor.
052:             * @param name target name.
053:             * @param address IPv6 address.
054:             * @param SNMPManager snmp manager.
055:             * @throws AlgorithmException exception.
056:             */
057:            // GUI thread
058:            public TargetIPv6(final String name, final Inet6Address address,
059:                    final SNMPManager snmp_manager) throws AlgorithmException {
060:                super (name);
061:                if (address == null)
062:                    throw new AlgorithmException("name is null");
063:                this .address = address;
064:                snmp_querier = snmp_manager != null ? snmp_manager
065:                        .getQuerier(address) : null;
066:                setItem(address.getHostAddress());
067:                ip_querier = new IPQuerier(address);
068:                // may last a long time (DNS resolver)
069:                // setDescription(address.getCanonicalHostName());
070:            }
071:
072:            /**
073:             * Checks that this host is SNMP capable.
074:             * @param none.
075:             * @return void.
076:             */
077:            public void checkSNMPAwareness() {
078:                snmp_querier.getSysDescr(new SNMPQuerier.QuerierListener() {
079:                    public void onResponse(ResponseEvent event) {
080:                        getGUI().setStatus(
081:                                getGUI().getConfig().getPattern(
082:                                        "discovered_snmp",
083:                                        getAddress().toString().substring(1)));
084:                        setImageHostSNMP();
085:                    }
086:
087:                    public void onTimeout(ResponseEvent event) {
088:                        getGUI().setStatus(
089:                                getGUI().getConfig().getPattern("snmp_timeout",
090:                                        getAddress().toString().substring(1)));
091:                    }
092:                });
093:            }
094:
095:            /**
096:             * Returns the SNMP querier.
097:             * @param none.
098:             * @return SNMPQuerier querier instance.
099:             */
100:            public SNMPQuerier getSNMPQuerier() {
101:                return snmp_querier;
102:            }
103:
104:            /**
105:             * Returns the IP querier.
106:             * @param none.
107:             * @return IPQuerier querier instance.
108:             */
109:            public IPQuerier getIPQuerier() {
110:                return ip_querier;
111:            }
112:
113:            /**
114:             * Returns the IP address.
115:             * @param none.
116:             * @return Inet4Address IP address.
117:             */
118:            // any thread
119:            public Inet6Address getAddress() {
120:                return address;
121:            }
122:
123:            /**
124:             * Checks that the parameter can be attached to this target.
125:             * @param visual_element parameter to check.
126:             * @return true if the parameter can be attached to this target.
127:             */
128:            public boolean canManageThisChild(final VisualElement visual_element) {
129:                if (ActionPing.class.isInstance(visual_element))
130:                    return true;
131:                if (ActionFlood.class.isInstance(visual_element))
132:                    return true;
133:                if (ActionSNMP.class.isInstance(visual_element))
134:                    return true;
135:                if (EventReachable.class.isInstance(visual_element))
136:                    return true;
137:                if (TargetInterface.class.isInstance(visual_element))
138:                    return true;
139:                if (ActionHTTP.class.isInstance(visual_element))
140:                    return true;
141:                if (ActionNmap.class.isInstance(visual_element))
142:                    return true;
143:                return false;
144:            }
145:
146:            /**
147:             * Initializes this target.
148:             * @param gui current GUI instance.
149:             * @return void.
150:             */
151:            // final because called by constructor (by means of setItem())
152:            protected final void initialize(final GUI gui) {
153:                super .initialize(gui);
154:                if (gui != null)
155:                    setImageHost6();
156:            }
157:
158:            /**
159:             * Attaches this target to a specific parent.
160:             * @param gui current GUI instance.
161:             * @param parent parent.
162:             * @return true if this target has been succesfully attached.
163:             */
164:            public boolean addTarget(final GUI gui, final VisualElement parent) {
165:                initialize(gui);
166:
167:                if (!canAddTarget(parent))
168:                    return false;
169:                if (parent != null && !parent.canManageThisChild(this ))
170:                    return false;
171:
172:                final boolean is_new = !getGUI()
173:                        .containsCanonicalInstance(this );
174:                final TargetIPv6 target_ipv6 = (TargetIPv6) getGUI()
175:                        .getCanonicalInstance(this );
176:
177:                if (!getGUI().getVisualTransientAll().contains(target_ipv6))
178:                    target_ipv6.setParent(getGUI(), getGUI()
179:                            .getVisualTransientAll());
180:
181:                if (parent != null)
182:                    target_ipv6.setParent(getGUI(), parent);
183:
184:                return is_new;
185:            }
186:
187:            /**
188:             * Attaches this target to a specific parent defined by its address.
189:             * @param gui current GUI instance.
190:             * @param addr_str parent address.
191:             * @return true if this target has been succesfully attached.
192:             */
193:            public static void addTargetIPv6(final GUI gui,
194:                    final String addr_str) {
195:                try {
196:                    synchronized (gui.sync_tree) {
197:                        final TargetIPv6 foo = new TargetIPv6(addr_str,
198:                                (Inet6Address) InetAddress.getByName(addr_str),
199:                                gui.getSNMPManager());
200:                        if (gui.containsCanonicalInstance(foo))
201:                            return;
202:                        gui.asyncExecIfNeeded(new Runnable() {
203:                            public void run() {
204:                                synchronized (gui.sync_tree) {
205:                                    if (gui.containsCanonicalInstance(foo))
206:                                        return;
207:                                    if (foo
208:                                            .addTarget(gui,
209:                                                    (VisualElement) null) == true)
210:                                        foo.checkSNMPAwareness();
211:                                }
212:                            }
213:                        });
214:                    }
215:                } catch (final AlgorithmException ex) {
216:                    log.error("Exception", ex);
217:                } catch (final UnknownHostException ex) {
218:                    log.error("Exception", ex);
219:                }
220:            }
221:
222:            /**
223:             * Compares two targets.
224:             * @param o target to compare to.
225:             * @return true if the targets are equal.
226:             */
227:            // any thread
228:            public boolean equals(final Object o) {
229:                if (this  == o)
230:                    return true;
231:                if ((o == null) || (o.getClass() != getClass()))
232:                    return false;
233:                final TargetIPv6 target = (TargetIPv6) o;
234:                return getAddress().equals(target.getAddress());
235:            }
236:
237:            /**
238:             * Returns the hashcode for this target.
239:             * @param none.
240:             * @return int hashcode.
241:             */
242:            // any thread
243:            public int hashCode() {
244:                return getAddress().hashCode();
245:            }
246:        }
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