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+/*
+ * Copyright (c) 2008 Paul C. Buetow, vs@dev.buetow.org
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * All icons of the icons/ folder are under a Creative Commons
+ * Attribution-Noncommercial-Share Alike License a CC-by-nc-sa.
+ *
+ * The icon's homepage is http://code.google.com/p/ultimate-gnome/
+ */
+
+package events;
+
+import java.util.*;
+
+import prefs.*;
+import core.*;
+import utils.*;
+
+/**
+ * The class VSRegisteredEvents. This class is responsible to manage all
+ * events. It manages the event classnames, the event shortnames and the event
+ * names. It also checks if a protocol (which is an event as well) has
+ * variables which are editable through the GUI of the simulator.
+ *
+ * @author Paul C. Buetow
+ */
+public final class VSRegisteredEvents {
+ /** The serial version uid */
+ private static final long serialVersionUID = 1L;
+
+ /** The event classnames by eventnames. */
+ private static HashMap<String,String> eventClassnamesByNames =
+ new HashMap<String,String>();
+
+ /** The event shortnames by classnames. */
+ private static HashMap<String,String> eventShortnamesByClassnames =
+ new HashMap<String,String>();
+
+ /** The event names by classnames. */
+ private static HashMap<String,String> eventNamesByClassnames =
+ new HashMap<String,String>();
+
+ /** The event classnames by shortnames. */
+ private static HashMap<String,String> eventClassnamesByShortnames =
+ new HashMap<String,String>();
+
+ /** The editable protocols classnames. */
+ private static ArrayList<String> editableProtocolsClassnames =
+ new ArrayList<String>();
+
+ private static HashMap<String,ArrayList<String>> clientVariables =
+ new HashMap<String,ArrayList<String>>();
+
+ private static HashMap<String,ArrayList<String>> serverVariables =
+ new HashMap<String,ArrayList<String>>();
+
+ private static HashMap<String,Boolean> isOnServerStartProtocol =
+ new HashMap<String,Boolean>();
+
+ /** The prefs. */
+ //private static VSPrefs prefs;
+
+ /**
+ * Registers available events.
+ *
+ * @param prefs_ the prefs_
+ */
+ public static void init(VSPrefs prefs_) {
+ //prefs = prefs_;
+
+ registerEvent("events.implementations.VSProcessCrashEvent",
+ "Prozessabsturz");
+ registerEvent("events.implementations.VSProcessRecoverEvent",
+ "Prozesswiederbelebung");
+ registerEvent("protocols.implementations.VSBasicMulticastProtocol",
+ "Basic Multicast", "Basic Multicast");
+ registerEvent("protocols.implementations.VSBerkelyTimeProtocol",
+ "Berkeley Algorithmus zur internen Sync.", "Berkeley");
+ registerEvent("protocols.implementations.VSBroadcastProtocol",
+ "Broadcast");
+ registerEvent("protocols.implementations.VSDummyProtocol",
+ "Beispiel/Dummy");
+ registerEvent("protocols.implementations.VSExternalTimeSyncProtocol",
+ "Christians Methode zur externen Sync.", "Christians");
+ registerEvent("protocols.implementations.VSInternalTimeSyncProtocol",
+ "Interne Synchronisation", "Interne Sync.");
+ registerEvent("protocols.implementations.VSOnePhaseCommitProtocol",
+ "Ein-Phasen Commit", "1-Phasen Commit");
+ registerEvent("protocols.implementations.VSPingPongProtocol",
+ "Ping Pong");
+ registerEvent("protocols.implementations.VSReliableMulticastProtocol",
+ "Reliable Multicast", "Reliable Multicast");
+ registerEvent("protocols.implementations.VSTwoPhaseCommitProtocol",
+ "Zwei-Phasen Commit", "2-Phasen Commit");
+
+ /* Make dummy objects of each protocol, to see if they contain VSPrefs
+ values to edit */
+ Vector<String> protocolClassnames = getProtocolClassnames();
+ VSClassLoader classLoader = new VSClassLoader();
+
+ for (String protocolClassname : protocolClassnames) {
+ Object serverObject = classLoader.newInstance(protocolClassname);
+ Object clientObject = classLoader.newInstance(protocolClassname);
+
+ if (clientObject instanceof protocols.VSAbstractProtocol &&
+ serverObject instanceof protocols.VSAbstractProtocol) {
+
+ protocols.VSAbstractProtocol serverProtocol =
+ (protocols.VSAbstractProtocol) serverObject;
+ protocols.VSAbstractProtocol clientProtocol =
+ (protocols.VSAbstractProtocol) clientObject;
+
+ serverProtocol.onServerInit();
+ clientProtocol.onClientInit();
+
+ if (!serverProtocol.isEmpty() || !clientProtocol.isEmpty())
+ editableProtocolsClassnames.add(protocolClassname);
+
+ if (!serverProtocol.isEmpty()) {
+ ArrayList<String> variables = new ArrayList<String>();
+ variables.addAll(serverProtocol.getAllFullKeys());
+ serverVariables.put(protocolClassname, variables);
+ }
+
+ if (!clientProtocol.isEmpty()) {
+ ArrayList<String> variables = new ArrayList<String>();
+ variables.addAll(clientProtocol.getAllFullKeys());
+ clientVariables.put(protocolClassname, variables);
+ }
+
+ if (serverProtocol.hasOnServerStart())
+ isOnServerStartProtocol.put(protocolClassname,
+ new Boolean(true));
+ }
+ }
+ }
+
+ /**
+ * Gets the editable protocols classnames.
+ *
+ * @return the editable protocols classnames
+ */
+ public static ArrayList<String> getEditableProtocolsClassnames() {
+ return editableProtocolsClassnames;
+ }
+
+ /**
+ * Gets the protocols server variable names.
+ *
+ * @return The variable names
+ */
+ public static ArrayList<String> getProtocolServerVariables(
+ String protocolClassname) {
+ return serverVariables.get(protocolClassname);
+ }
+
+ /**
+ * Gets the protocols server variable names.
+ *
+ * @return The variable names
+ */
+ public static ArrayList<String> getProtocolClientVariables(
+ String protocolClassname) {
+ return clientVariables.get(protocolClassname);
+ }
+
+ /**
+ * Gets the protocol names.
+ *
+ * @return the protocol names
+ */
+ public static Vector<String> getProtocolNames() {
+ Set<String> set = eventClassnamesByNames.keySet();
+ Vector<String> vector = new Vector<String>();
+
+ for (String eventName : set)
+ if (getClassnameByEventname(eventName).startsWith(
+ "protocols.implementations"))
+ vector.add(eventName);
+
+ Collections.sort(vector);
+
+ return vector;
+ }
+
+ /**
+ * Gets the protocol classnames.
+ *
+ * @return the protocol classnames
+ */
+ public static Vector<String> getProtocolClassnames() {
+ ArrayList<String> shortnames = new ArrayList<String>();
+ shortnames.addAll(eventClassnamesByShortnames.keySet());
+ Collections.sort(shortnames);
+ Vector<String> vector = new Vector<String>();
+
+ for (String eventShortname : shortnames) {
+ String eventClassname = getClassnameByShortname(eventShortname);
+ if (eventClassname.startsWith("protocols.implementations"))
+ vector.add(eventClassname);
+ }
+
+ return vector;
+ }
+
+ /**
+ * Gets the non protocol names.
+ *
+ * @return the non protocol names
+ */
+ public static Vector<String> getNonProtocolNames() {
+ Set<String> set = eventClassnamesByNames.keySet();
+ Vector<String> vector = new Vector<String>();
+
+ for (String eventName : set)
+ if (getClassnameByEventname(eventName).startsWith(
+ "events.implementations"))
+ vector.add(eventName);
+
+ Collections.sort(vector);
+
+ return vector;
+ }
+
+ /**
+ * Gets the non protocol classnames.
+ *
+ * @return the non protocol classnames
+ */
+ public static Vector<String> getNonProtocolClassnames() {
+ Set<String> set = eventNamesByClassnames.keySet();
+ Vector<String> vector = new Vector<String>();
+
+ for (String eventClassname : set)
+ if (eventClassname.startsWith("events.implementations"))
+ vector.add(eventClassname);
+
+ Collections.sort(vector);
+
+ return vector;
+ }
+
+ /**
+ * Gets the classname.
+ *
+ * @param eventName the event name
+ *
+ * @return the classname
+ */
+ public static String getClassnameByEventname(String eventName) {
+ return eventClassnamesByNames.get(eventName);
+ }
+
+ /**
+ * Gets the name.
+ *
+ * @param eventClassname the event classname
+ *
+ * @return the name
+ */
+ public static String getNameByClassname(String eventClassname) {
+ return eventNamesByClassnames.get(eventClassname);
+ }
+
+ /**
+ * Gets the shortname.
+ *
+ * @param eventClassname the event classname
+ *
+ * @return the shortname
+ */
+ public static String getShortnameByClassname(String eventClassname) {
+ return eventShortnamesByClassnames.get(eventClassname);
+ }
+
+ /**
+ * Gets the classname.
+ *
+ * @param eventShortname the event shortname
+ *
+ * @return the shortname
+ */
+ public static String getClassnameByShortname(String eventShortname) {
+ return eventClassnamesByShortnames.get(eventShortname);
+ }
+
+ /**
+ * Checks if the protocol uses onServerStart or onClientStart
+ *
+ * @param protocolClassname the protocol's classname
+ *
+ * @return true if onServerStart, false if onClientStart
+ */
+ public static boolean isOnServerStartProtocol(String protocolClassname) {
+ if (isOnServerStartProtocol.containsKey(protocolClassname)) {
+ Boolean bool = isOnServerStartProtocol.get(protocolClassname);
+ return bool.booleanValue();
+ }
+
+ return false;
+ }
+
+ /**
+ * Creates the event instance by classname.
+ *
+ * @param eventClassname the event classname
+ * @param process the process
+ *
+ * @return An instance of the event classname, if exists. Else null.
+ */
+ public static VSAbstractEvent createEventInstanceByClassname(
+ String eventClassname, VSInternalProcess process) {
+ Object protocolObj = new VSClassLoader().newInstance(eventClassname);
+
+ if (protocolObj instanceof VSAbstractEvent) {
+ VSAbstractEvent event = (VSAbstractEvent) protocolObj;
+ event.init(process);
+ return event;
+ }
+
+ return null;
+ }
+
+ /**
+ * Creates the event instance by name.
+ *
+ * @param eventName the event name
+ * @param process the process
+ *
+ * @return An instance of the event, if exists. Else null.
+ */
+ public static VSAbstractEvent createEventInstanceByName(String eventName,
+ VSInternalProcess process) {
+ return createEventInstanceByClassname(
+ eventClassnamesByNames.get(eventName), process);
+ }
+
+ /**
+ * Registers an event.
+ *
+ * @param eventClassname the event classname
+ * @param eventName the event name
+ */
+ private static void registerEvent(String eventClassname, String eventName) {
+ registerEvent(eventClassname, eventName, null);
+ }
+
+ /**
+ * Registers an event.
+ *
+ * @param eventClassname the event classname
+ * @param eventName the event name
+ * @param eventShortname the event shortname
+ */
+ private static void registerEvent(String eventClassname, String eventName,
+ String eventShortname) {
+ if (eventShortname == null)
+ eventShortname = eventName;
+
+ eventNamesByClassnames.put(eventClassname, eventName);
+ eventShortnamesByClassnames.put(eventClassname, eventShortname);
+ eventClassnamesByNames.put(eventName, eventClassname);
+ eventClassnamesByShortnames.put(eventShortname, eventClassname);
+ }
+}