diff options
| author | Paul Buetow <paul@buetow.org> | 2009-02-18 17:33:22 +0000 |
|---|---|---|
| committer | Paul Buetow <paul@buetow.org> | 2009-02-18 17:33:22 +0000 |
| commit | 4722100cba287b164957c658c2e035783e20c963 (patch) | |
| tree | 35733fd3e50aeeb493e38ceaea83521a4710f0ac /server | |
| parent | 61f7175cc3e51c0afaf63e380d03824a77464ba8 (diff) | |
moved sources
Diffstat (limited to 'server')
| -rw-r--r-- | server/CalendarDatabase.java | 271 | ||||
| -rw-r--r-- | server/CalendarFormatParser.java | 278 | ||||
| -rw-r--r-- | server/NetCalendarServer.java | 160 |
3 files changed, 0 insertions, 709 deletions
diff --git a/server/CalendarDatabase.java b/server/CalendarDatabase.java deleted file mode 100644 index 3b5e1e0..0000000 --- a/server/CalendarDatabase.java +++ /dev/null @@ -1,271 +0,0 @@ -package server; - -import java.util.*; - -import shared.*; -import shared.remotecall.*; - -/** - * A object of this class encapsulates the whole calendar database on the server side. - * This class is used for getting/modifying and adding/removing of calendar events. - * @author buetow - * - */ -public final class CalendarDatabase { - private Vector vecCategories; - private HashMap mapEvents; - private HashMap mapCategories; - - /** - * Simple constructur. Creates a calendar database. - * @param vecCategories Specifies the vector of CalendarCategory objects for initial database content. - */ - public CalendarDatabase(Vector vecCategories) { - this.vecCategories = vecCategories; - initializeMaps(); - } - - /** - * Initializes a private hash map so that the server can access events by their id numbers very fast. - */ - private void initializeMaps() { - this.mapEvents = new HashMap(); - this.mapCategories = new HashMap(); - - Enumeration enumCategory = vecCategories.elements(); - while (enumCategory.hasMoreElements()) { - CalendarCategory category = (CalendarCategory) enumCategory.nextElement(); - mapCategories.put(category.getName(), category); - - Vector vecEvents = category.getEvents(); - Enumeration enumEvents = vecEvents.elements(); - while (enumEvents.hasMoreElements()) { - CalendarEvent event = (CalendarEvent) enumEvents.nextElement(); - mapEvents.put(new Integer(event.getEventID()), event); - } - } - } - - /** - * Returns a specific calendar event using fast hash lookup. - * @param iEventID Specifies the ID of the calendar event to lookup. - * @return Returns the requested calendar event. - */ - public CalendarEvent getEvent(int iEventID) { - return (CalendarEvent) mapEvents.get(new Integer(iEventID)); - } - - /** - * Returns a specific calendar category using fast hash lookup. - * @param sCategoryName Specifies the name of the calendar category to lookup. - * @return Returns the requested calendar category. - */ - public CalendarCategory getCategory(String sCategoryName) { - return (CalendarCategory) mapCategories.get(sCategoryName); - } - - /** - * Gets all calendar categories. - * @return Returns a Vector of all available CalendarCategory objects. - */ - public Vector getCategories() { - return vecCategories; - } - - /** - * This method returns a Vector of all available calendar events. - * @return Returns all available CalendarEvent objects of the database. - */ - public Vector getAllEvents() { - MyVector vecAllEvents = new MyVector(); - Enumeration enumCategories = vecCategories.elements(); - - while (enumCategories.hasMoreElements()) { - CalendarCategory category = (CalendarCategory) enumCategories.nextElement(); - vecAllEvents.appendVector(category.getEvents()); - } - - return vecAllEvents; - } - - /** - * This method looks for all calendar events which match the a given client request. - * @param clientRequest Specifies the client request sent by the calendar client. - * @return Returns a Vector of all matching CalendarEvent objects. - */ - public Vector getMatchingEvents(ClientRequest clientRequest) { - MyVector vecEvents = new MyVector(); - int iNumEventsToRequest = clientRequest.getNumEventsToRequest(); - - Enumeration enumCategories = vecCategories.elements(); - while (enumCategories.hasMoreElements()) { - CalendarCategory category = (CalendarCategory) enumCategories.nextElement(); - Vector vecNewEvents = category.getMatchingEvents(clientRequest); - vecEvents.appendVector(vecNewEvents); - - if (iNumEventsToRequest > -1) { - if (iNumEventsToRequest == vecEvents.size()) - break; - - } else { - clientRequest.setNumEventsToRequest(iNumEventsToRequest - vecNewEvents.size()); - } - - } - - return vecEvents; - } - - /** - * This method adds a calendar event to the calendar database. - * @param clientRequest Specifies the client request sent by the netcalendar client. Its containing the new event to add. - */ - public void addEvent(ClientRequest clientRequest) { - CalendarEvent event = clientRequest.getEvent(); - String sCategoryName = event.getCategoryName(); - CalendarCategory category = getCategory(sCategoryName); - - // Check if the have to create a new category - if (category == null) { - category = new CalendarCategory(sCategoryName); - mapCategories.put(sCategoryName, category); - vecCategories.add(category); - } - - category.addEvent(event); - category.setHasChanged(true); - event.setCategory(category); - mapEvents.put(new Integer(event.getEventID()), event); - } - - /** - * This method modifies an calendar event of the calendar database. - * @param clientRequest Specifies the client request sent by the calendar client. - */ - public void modifyEvent(ClientRequest clientRequest) { - CalendarEvent newEvent = clientRequest.getEvent(); - CalendarEvent orgEvent = getEvent(newEvent.getEventID()); - - // If the event doesnt exist any more, recreate it - if (orgEvent == null) { - clientRequest.setEvent(newEvent); - addEvent(clientRequest); - return; - } - - orgEvent.setDate(newEvent.getDate()); - orgEvent.setYearly(newEvent.isYearly()); - orgEvent.setDescription(newEvent.getDescription()); - orgEvent.setPlace(newEvent.getPlace()); - - // Modify the events category - if (!orgEvent.getCategoryName().equals(newEvent.getCategoryName())) { - String sNewCategoryName = newEvent.getCategoryName(); - - // First remove the event from its current category - orgEvent.removeFromCurrentCategory(); - CalendarCategory category = getCategory(sNewCategoryName); - - if (category == null) { - category = new CalendarCategory(sNewCategoryName); - mapCategories.put(sNewCategoryName, category); - vecCategories.add(category); - } - - category.addEvent(orgEvent); - category.setHasChanged(true); - orgEvent.setCategory(category); - - } else { - orgEvent.getCategory().setHasChanged(true); - } - } - - /** - * This method deletes a calendar event of the calendar database. If the specified calendar event doesnt - * exist eny more, nothing will be changed. - * @param clientRequest Specifies the client request sent by the netcalendar client. - */ - public void deleteEvent(ClientRequest clientRequest) { - // Get the server side reference of the calendar event - CalendarEvent event = getEvent(clientRequest.getEvent().getEventID()); - - if (event != null) { - event.getCategory().setHasChanged(true); - event.removeFromCurrentCategory(); - mapEvents.remove(new Integer(event.getEventID())); - } - } - - /** - * This method renames a calendar category. - * @param clientRequest Specifies the client request sent by the netcalendar client. - */ - public void renameCategory(ClientRequest clientRequest) { - String sOldCategoryName = clientRequest.getEvent().getCategoryName(); - CalendarCategory category = getCategory(sOldCategoryName); - - if (category == null) - return; - - String sNewCategoryName = clientRequest.getString(); - - if (sOldCategoryName.equals(sNewCategoryName)) - return; - - mapCategories.remove(sOldCategoryName); - - category.setName(sNewCategoryName); - - Vector vecEvents = category.getEvents(); - Enumeration enumEvents = vecEvents.elements(); - while (enumEvents.hasMoreElements()) { - CalendarEvent event = (CalendarEvent) enumEvents.nextElement(); - event.setCategoryName(sNewCategoryName); - } - - // Check if the category exists already - CalendarCategory categoryExists = getCategory(sNewCategoryName); - - if (categoryExists == null) { - mapCategories.put(category.getName(), category); - } else { - vecCategories.remove(category); - categoryExists.merge(category); - } - - } - - /** - * This method daletes a calendar category. - * @param clientRequest Specifies the client request sent by the netcalendar client. - */ - public void deleteCategory(ClientRequest clientRequest) { - String sCategoryName = clientRequest.getEvent().getCategoryName(); - CalendarCategory category = getCategory(sCategoryName); - - if (category == null) - return; - - mapCategories.remove(sCategoryName); - vecCategories.remove(category); - category.deleteDatabaseFile(); - } - - /** - * This method flushes all the changed calendar categories of the calendar database to the filesystem. - */ - public void flush() { - Enumeration enumCategories = vecCategories.elements(); - - while (enumCategories.hasMoreElements()) { - CalendarCategory category = (CalendarCategory) enumCategories.nextElement(); - if (category.hasChanged()) - category.flush(); - } - - Main.execExternalCommand(Config.getStringValue("server_updatedb_command")); - } - -} - diff --git a/server/CalendarFormatParser.java b/server/CalendarFormatParser.java deleted file mode 100644 index 5d38f24..0000000 --- a/server/CalendarFormatParser.java +++ /dev/null @@ -1,278 +0,0 @@ -/** - * - */ -package server; - -import java.util.*; -import java.util.regex.*; -import java.text.*; -import java.io.*; - -import shared.*; - -/** - * This class is needed for parsing the original UNIX calendar database format. - * Its parsing the calendar database from the file-system and its caching it into the - * memory. Then, the CalendarDatabase class can be used to access the database. - * Each calendar category has its own file. In each file all the calendar events of the - * specific categories are stored. - * @author buetow - * - */ -public final class CalendarFormatParser { - private int iCurrentYear; - private Date dateCurrent; - private String sWorkdir; - private Vector vecCategories; - private static final Pattern datePattern; - private static final Pattern dateYearlyPattern; - private static final Pattern dateElsePattern; - private static final Pattern dateEndPattern; - // private static final Pattern emptyLine; - private static final String DATE_FORMAT = "M/d-y"; - private static final String EXTENDED_DATE_FORMAT = "M/d-y-H:m"; - - // Those pattern will be used later, precompile here once to use often - static { - // Matches calendar date format like: "01/25 2006-14:23" - datePattern = Pattern.compile("\\d{2}/\\d{2}\t\\d{4}-\\d{2}:\\d{2}"); - - // Matches calendar date format like: "01/25 yearly-14:23" - dateYearlyPattern = Pattern.compile("\\d{2}/\\d{2}\tyearly-\\d{2}:\\d{2}"); - - // Matches calendar date format like: "01/25 Some free text here - dateElsePattern = Pattern.compile("\\d{2}/\\d{2}\t"); - - // Matches the end of the date string like: "arly-14:23 " or "2006-14:23" - dateEndPattern = Pattern.compile(".{4}-\\d{2}:\\d{2}"); - } - - /** - * Simple constructor. Creates a calendar format parser object and initializes some private members. - */ - public CalendarFormatParser() { - // Use current dir as workdir by default - this.sWorkdir = "."; - this.vecCategories = new Vector(); - - // Events without a year specified will use the current year! - GregorianCalendar cal = new GregorianCalendar(); - iCurrentYear = cal.get(Calendar.YEAR); - - dateCurrent = new Date(); - } - - /** - * This method returns a vector of all found calendar categories after parsing. - * @return Returns a Vector of all available CalendarCategory objects. - */ - public Vector getCategories() { - return vecCategories; - } - - /** - * This method sets the working directory. Its the "server_database_dir" variable defined in the current configuration by default. - * @param sWorkdir Specifies the working directory. - */ - public void setWorkdir(String sWorkdir) { - this.sWorkdir = sWorkdir; - } - - /** - * Starts the parsing work of the calendar database files. - */ - public void start() { - lookForCategories(); - parseAllCategories(); - Main.execExternalCommand(Config.getStringValue("server_startup_command")); - } - - /** - * Parses for the available calendar categories. - */ - private void lookForCategories() { - File dir = new File(sWorkdir); - File[] dirContent = dir.listFiles(); - - for (int i = 0; i < dirContent.length; ++i) - if (dirContent[i].isFile()) - // Ignore the 'calendar' file, only read the 'calendar.*' files - if (!dirContent[i].getName().equals("calendar")) - vecCategories.add(new CalendarCategory(dirContent[i])); - } - - /** - * Parses all events of all available categories. - */ - private void parseAllCategories() { - Enumeration enumCategories = vecCategories.elements(); - while (enumCategories.hasMoreElements()) - parseCategory((CalendarCategory) enumCategories.nextElement()); - } - - /** - * Parses all events of a category file. - * @param category Specifies the calendar category to be parsed. - */ - private void parseCategory(CalendarCategory category) { - Vector vecEvents = new Vector(); - File file = category.getFile(); - - try { - BufferedReader in = new BufferedReader(new FileReader(file)); - String sLine; - - while ((sLine = in.readLine()) != null) { - CalendarEvent event = new CalendarEvent(category); - - // Ignore empty lines! - if (sLine.equals("")) - continue; - - setEventsDate(event, sLine); - setEventsPlace(event, sLine); - setEventsDescription(event, sLine); - - vecEvents.add(event); - } - - } catch (Exception e) { - Main.infoMessage("Error: " + e.toString()); - } - - category.setEvents(vecEvents); - category.unsetFile(); - } - - /** - * This method parses all known informations from a given calendar format line and saves them - * into the given calendar event object. - * @param event Specifies the calendar event to be modified. - * @param sLine Specifies the single line of the category file to be parsed. - */ - private void setEventsDate(CalendarEvent event, String sLine) { - // Create a local copy because the string may be modified - String sMyLine = new String(sLine).replaceAll(" ", ""); - String sDateFormat; - boolean bValidDateFormat = false; - - // Check if its a yearly event - Matcher matcher = dateYearlyPattern.matcher(sMyLine); - if (matcher.find()) { - sMyLine = sMyLine.replaceFirst("\tyearly", "-" + iCurrentYear); - sDateFormat = EXTENDED_DATE_FORMAT; - event.setYearly(true); - bValidDateFormat = true; - - } else { - // Event is not yearly, but check if its still using NetCalendars - // extended format which contains the event's time (hours:minutes) - matcher = datePattern.matcher(sMyLine); - if (matcher.find()) { - sMyLine = sMyLine.replaceFirst("\t", "-"); - sDateFormat = EXTENDED_DATE_FORMAT; - event.setYearly(false); - bValidDateFormat = true; - - } else { - //matcher = dateElsePattern.matcher(sMyLine); - //if (matcher.find()) { - // Just use original Calendar format without any year and time - // informations - // Assume yearly - sMyLine = sMyLine.replaceFirst("\t", "-" + iCurrentYear); - sDateFormat = DATE_FORMAT; - event.setYearly(true); - bValidDateFormat = true; - /*} else { - return; - }*/ - } - } - - // Create a new date object containing the events time informations - SimpleDateFormat formatter = new SimpleDateFormat(sDateFormat); - Date date = null; - - if (bValidDateFormat) { - try { - date = formatter.parse(sMyLine); - - } catch (ParseException e) { - Main.infoMessage("Error: Calendar format parser error at category " - + event.getCategoryName() + ": " + e.getMessage()); - } - } - - // The event is yearly, but occured already this year, so increment the events - // year by one! - if (event.isYearly() && date.getTime() < dateCurrent.getTime()) { - Calendar calendar = new GregorianCalendar(); - calendar.setTime(date); - calendar.set(Calendar.YEAR, iCurrentYear + 1); - date = calendar.getTime(); - } - - event.setDate(date); - } - - /** - * Parses a single calendar line for the place information. - * @param event Specifies the calendar event to be modified. - * @param sLine Specifies the single line of the category file to be parsed. - */ - private void setEventsPlace(CalendarEvent event, String sLine) { - int iPos = sLine.indexOf(";;"); - - // No event! Return empty string! - if (iPos < 0) { - event.setPlace(""); - - } else { - event.setPlace(trim(sLine.substring(iPos + 2))); - } - } - - /** - * Parses a single calendar line for the description information. - * @param event Specifies the calendar event to be modified. - * @param sLine Specifies the single line of the category file to be parsed. - */ - private void setEventsDescription(CalendarEvent event, String sLine) { - // We need a local copy because we may modify the string - String sTmp = new String(sLine); - - // Check if there is a place string... - int iPos = sLine.indexOf(";;"); - - // ... if yes, dont include it! - if (iPos >= 0) - sTmp = sTmp.substring(0, iPos); - - // Remove the events date from the string - Matcher matcher = dateEndPattern.matcher(sTmp); - - if (matcher.find()) { - sTmp = sTmp.substring(matcher.start()+11); - - } else { - sTmp = sTmp.substring(sTmp.indexOf("\t")+1); - } - - event.setDescription(trim(sTmp)); - } - - /** - * Its like String.trim() but also removes a ending newline. - * @param sTrimString Specifies the String to be trimmed. - * @return Returns a copy of the string, with leading and trailing whitespace omitted, also a trailing newline will be omitted. - */ - private String trim(String sTrimString) { - int iPos = sTrimString.indexOf("\n"); - - if (iPos >= 0) - return sTrimString.substring(0, iPos).trim(); - - return sTrimString.trim(); - } -} diff --git a/server/NetCalendarServer.java b/server/NetCalendarServer.java deleted file mode 100644 index ad02d2b..0000000 --- a/server/NetCalendarServer.java +++ /dev/null @@ -1,160 +0,0 @@ -/** - * - */ -package server; - -import java.io.*; -import java.net.*; -import java.util.*; -import javax.net.*; -import javax.net.ssl.*; - -import shared.*; -import shared.remotecall.*; - -/** - * This is the main class of the server part of the netcalendar suite. - * It contains the server socket part and hold a references to the calendar database. - * @author buetow - */ -public class NetCalendarServer extends Thread { - private int iPort; - private String sWorkdir; - - /** - * Creates a NetCalendarServer instance and runs it as a thread. - * @param iPort Specifies the server port of the server to be used. - * @param sWorkdir Specifies the working directory of the server. - */ - public NetCalendarServer(int iPort, String sWorkdir) { - this.iPort = iPort; - this.sWorkdir = sWorkdir; - - start(); - } - - /** - * This method initializes a new server socket. - * @return Returns the server socket object. - */ - private ServerSocket makeServerSocket() throws IOException { - if (!Config.getBooleanValue("use_ssl")) - return new ServerSocket(iPort); - - ServerSocketFactory sslSocketFactory = SSLServerSocketFactory.getDefault(); - return sslSocketFactory.createServerSocket(iPort); - } - - /** - * This method specifies the start method of the Thread. Its setting up the server port. - */ - public void run() { - ServerSocket serverSocket = null; - Socket socket = null; - - // Read and parse the whole calendar database from file! - CalendarFormatParser parser = new CalendarFormatParser(); - parser.setWorkdir(sWorkdir); - parser.start(); - - CalendarDatabase calendarDatabase = new CalendarDatabase(parser.getCategories()); - - try { - serverSocket = makeServerSocket(); - - while (true) { - // This will wait for a connection to be made to this socket. - socket = serverSocket.accept(); - // serverSocket.accept(); - socket.setKeepAlive(true); - - // Recieve the client's request object - InputStream inputStream = socket.getInputStream(); - ObjectInput objectInput = new ObjectInputStream(inputStream); - ClientRequest clientRequest = (ClientRequest) objectInput.readObject(); - - if (!clientRequest.checkPassphrase(Config.getStringValue("passphrase", false))) { - Main.infoMessage("Server: Client refused, wrong passphrase!"); - - // Check if a event has been modified! - } else if (clientRequest.requestsNewEvents()) { - Main.infoMessage("Server: Client requests new events"); - - // Get all calendar events which match the request - Vector vecEvents = calendarDatabase.getMatchingEvents(clientRequest); - ServerResponse serverResponse = new ServerResponse(vecEvents); - - OutputStream outputStream = socket.getOutputStream(); - ObjectOutput objectOutput = new ObjectOutputStream(outputStream); - objectOutput.writeObject(serverResponse); - objectOutput.flush(); - objectOutput.close(); - - } else if (clientRequest.actionIs(ClientRequest.MODIFY_EVENT)) { - Main.infoMessage("Server: Client wants to modify an event"); - calendarDatabase.modifyEvent(clientRequest); - // if (Config.getBooleanValue("client_run")) - calendarDatabase.flush(); - - } else if (clientRequest.actionIs(ClientRequest.DELETE_EVENT)) { - Main.infoMessage("Server: Client wants to delete an event"); - calendarDatabase.deleteEvent(clientRequest); - // if (Config.getBooleanValue("client_run")) - calendarDatabase.flush(); - - } else if (clientRequest.actionIs(ClientRequest.ADD_EVENT)) { - Main.infoMessage("Server: Client wants to add an event"); - calendarDatabase.addEvent(clientRequest); - // if (Config.getBooleanValue("client_run")) - calendarDatabase.flush(); - - } else if (clientRequest.actionIs(ClientRequest.RENAME_CATEGORY)) { - Main.infoMessage("Server: Client wants to rename a category"); - calendarDatabase.renameCategory(clientRequest); - // if (Config.getBooleanValue("client_run")) - calendarDatabase.flush(); - - } else if (clientRequest.actionIs(ClientRequest.DELETE_CATEGORY)) { - Main.infoMessage("Server: Client wants to delete a category (NYI)"); - calendarDatabase.deleteCategory(clientRequest); - // if (Config.getBooleanValue("client_run")) - calendarDatabase.flush(); - - } else if (clientRequest.actionIs(ClientRequest.RELOAD_DATABASE)) { - // Read and parse the whole calendar database from file! - parser = new CalendarFormatParser(); - parser.setWorkdir(sWorkdir); - parser.start(); - - calendarDatabase = new CalendarDatabase(parser.getCategories()); - - } else if (clientRequest.actionIs(ClientRequest.FLUSH_DATABASE)) { - Main.infoMessage("Server: Client wants to flush the database"); - calendarDatabase.flush(); - - } else if (clientRequest.actionIs(ClientRequest.SHUTDOWN_SERVER)) { - Main.infoMessage("Server: Client wants the server to shut down"); - calendarDatabase.flush(); - socket.close(); - - if (Config.getBooleanValue("client_run")) { - Main.infoMessage("Server: Shutting down the server thread"); - socket.close(); - serverSocket.close(); - break; - } else { - Main.exit(0); - } - } - - socket.close(); - } - - } catch (ClassNotFoundException e) { - Main.infoMessage("Error: Server error during serialization: " + e.getMessage()); - - } catch (IOException e) { - Main.infoMessage("Error: Server error during serialization: " + e.getMessage()); - } - } -} |
