diff options
Diffstat (limited to 'server/CalendarFormatParser.java')
| -rw-r--r-- | server/CalendarFormatParser.java | 509 |
1 files changed, 259 insertions, 250 deletions
diff --git a/server/CalendarFormatParser.java b/server/CalendarFormatParser.java index 4ef6fe5..5d38f24 100644 --- a/server/CalendarFormatParser.java +++ b/server/CalendarFormatParser.java @@ -1,5 +1,5 @@ /** - * + * */ package server; @@ -11,259 +11,268 @@ import java.io.*; import shared.*; /** - * This class is needed for parsing the original UNIX calendar database format. + * 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. + * 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 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 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 { - // 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; - } - } - - // 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(); - } + 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(); + } } |