Java CalendarBuilder类代码示例

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
public ReadCalendarFiles(String filePath) throws IOException, ParserException {
  Map<String, String> calendarEntry = null;
  FileInputStream fin = new FileInputStream(filePath);
  CalendarBuilder builder = new CalendarBuilder();
  net.fortuna.ical4j.model.Calendar calendar = builder.build(fin);
  for (Iterator i = calendar.getComponents().iterator(); i.hasNext(); ) {
    Component component = (Component) i.next();
    if (component.getName().equalsIgnoreCase("VEVENT")) {
      calendarEntry = new HashMap<>();
      for (Iterator j = component.getProperties().iterator(); j.hasNext(); ) {
        net.fortuna.ical4j.model.Property property = (Property) j.next();
        calendarEntry.put(property.getName(), property.getValue());
      }
      calendarEntries.add(calendarEntry);
    }
  }
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
private String readCalendarData(DavCalendarResource resource)
    throws CosmoDavException {
    if (! resource.exists()) {
        return null;
    }
    final String calendarString = resource.getCalendar();
    StringBuffer buffer = new StringBuffer();
    if (outputFilter != null) {
        try {
            final Calendar calendar = new CalendarBuilder().build(new StringReader(calendarString));
            outputFilter.filter(calendar, buffer);
        } catch (Exception exception) {
            throw new RuntimeException(exception.getMessage(), exception);
        }
    }
    else {
        buffer.append(calendarString);
    }
    return buffer.toString();
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
/**
 * Internal read calendar file from filesystem
 */
@Override
public Calendar readCalendar(final String type, final String calendarID) {
    log.debug("readCalendar from file, type=" + type + "  calendarID=" + calendarID);
    final File calendarFile = getCalendarFile(type, calendarID);

    InputStream in = null;
    try {
        in = new BufferedInputStream(new FileInputStream(calendarFile));
    } catch (final FileNotFoundException fne) {
        throw new OLATRuntimeException("Not found: " + calendarFile, fne);
    }

    final CalendarBuilder builder = new CalendarBuilder();
    Calendar calendar = null;
    try {
        calendar = builder.build(in);
    } catch (final Exception e) {
        throw new OLATRuntimeException("Error parsing calendar file.", e);
    } finally {
        if (in != null) {
            FileUtils.closeSafely(in);
        }
    }
    return calendar;
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
private String extractUid(String icalendar) throws IOException, ParserException {
    
    String uid = null;
    StringReader reader = new StringReader(icalendar);
    CalendarBuilder builder = new CalendarBuilder();
    Calendar calendar = builder.build(new UnfoldingReader(reader, true));
    if ( calendar != null && calendar.getComponents() != null ) {
        Iterator<Component> iterator = calendar.getComponents().iterator();
        while (iterator.hasNext()) {
            Component component = iterator.next();
            if ( component instanceof VEvent ) {
                uid = ((VEvent)component).getUid().getValue();
                break;
            }
        }
    }
    
    return uid;
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
public static Calendar loadCalendar(final URL url) throws IOException, ParserException {
    //noetig wegen ical4j-Bug #167
    CompatibilityHints.setHintEnabled(CompatibilityHints.KEY_RELAXED_PARSING, true);
    final CalendarBuilder b = new CalendarBuilder();
    final URLConnection conn = url.openConnection();
    try (InputStream in = conn.getInputStream()) {
        return b.build(in);
    }
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
private List<News> extractNews(String path) throws IOException, ParserException {
    FileInputStream fin = new FileInputStream(path);
    CalendarBuilder builder = new CalendarBuilder();
    net.fortuna.ical4j.model.Calendar calendar = builder.build(fin);

    ComponentList events = calendar.getComponents(Component.VEVENT);
    List<News> news = new ArrayList<>();
    for (Object e : events) {
        VEvent event = (VEvent) e;
        news.add(new News(event.getSummary().getValue(), event.getStartDate().getDate(), event.getDescription().getValue()));
    }
    return news;
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
private static void clearTZRegistry(CalendarBuilder cb) {
    // clear timezone registry if present
    TimeZoneRegistry tzr = cb.getRegistry();
    if(tzr!=null) {
        tzr.clear();
    }
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
public Item convert(Item calendarItem) {
    try {
        final Calendar calendar = new CalendarBuilder().build(new StringReader(calendarItem.getCalendar()));
        Component component = getFirstComponent(calendar.getComponents(calendarItem.getType().name()));
        setCalendarAttributes(calendarItem, component);
        calculateEventStampIndexes(calendar, component, calendarItem);
        calendarItem.setMimetype(ICALENDAR_MEDIA_TYPE);
        return calendarItem;
    } catch (Exception exception) {
        throw new RuntimeException(exception.getMessage(), exception);
    }
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
public Calendar convertContent(Item item) {
    if(item.getCalendar() != null) {
        try {
            return new CalendarBuilder().build(new StringReader(item.getCalendar()));
        } catch (Exception exception) {
            throw new RuntimeException(exception.getMessage(), exception);
        }
    }
    return null;
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
/**
 * Gets calendar.
 * @param name The name.
 * @return The calendar.
 * @throws Exception - if something is wrong this exception is thrown.
 */
protected Calendar getCalendar(String name) throws Exception {
    CalendarBuilder cb = new CalendarBuilder();
    InputStream in = getClass().getClassLoader().getResourceAsStream("testdata/" + name);
    if (in == null) {
        throw new IllegalStateException("resource " + name + " not found");
    }        
    Calendar calendar = cb.build(in);
    return calendar;
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
/**
 * Tests limit floating recurrence set.
 * @throws Exception - if something is wrong this exception is thrown.
 */
@Test
public void testLimitFloatingRecurrenceSet() throws Exception {
    CalendarBuilder cb = new CalendarBuilder();
    FileInputStream fis = new FileInputStream(baseDir + "limit_recurr_float_test.ics");
    Calendar calendar = cb.build(fis);
    
    Assert.assertEquals(3, calendar.getComponents().getComponents("VEVENT").size());
    
    OutputFilter filter = new OutputFilter("test");
    DateTime start = new DateTime("20060102T170000");
    DateTime end = new DateTime("20060104T170000");
    
    start.setUtc(true);
    end.setUtc(true);
    
    Period period = new Period(start, end);
    filter.setLimit(period);
    filter.setAllSubComponents();
    filter.setAllProperties();
    
    StringBuffer buffer = new StringBuffer();
    filter.filter(calendar, buffer);
    StringReader sr = new StringReader(buffer.toString());
    
    Calendar filterCal = cb.build(sr);
    
    Assert.assertEquals(2, filterCal.getComponents().getComponents("VEVENT").size());
    // Make sure 2nd override is dropped
    ComponentList vevents = filterCal.getComponents().getComponents(VEvent.VEVENT);
    Iterator<VEvent> it = vevents.iterator();
    while(it.hasNext()) {
        Component c = it.next();
        Assert.assertNotSame("event 6 changed 2",c.getProperties().getProperty("SUMMARY").getValue());
    }   
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
/**
 * Tests the set of limit recurrence.
 * @throws Exception - if something is wrong this exception is thrown.
 */
@Test
public void testLimitRecurrenceSetThisAndFuture() throws Exception {
    CalendarBuilder cb = new CalendarBuilder();
    FileInputStream fis = new FileInputStream(baseDir + "limit_recurr_taf_test.ics");
    Calendar calendar = cb.build(fis);
    
    Assert.assertEquals(4, calendar.getComponents().getComponents("VEVENT").size());
    
    VTimeZone vtz = (VTimeZone) calendar.getComponents().getComponent("VTIMEZONE");
    TimeZone tz = new TimeZone(vtz);
    OutputFilter filter = new OutputFilter("test");
    DateTime start = new DateTime("20060108T170000", tz);
    DateTime end = new DateTime("20060109T170000", tz);
    start.setUtc(true);
    end.setUtc(true);
    
    Period period = new Period(start, end);
    filter.setLimit(period);
    filter.setAllSubComponents();
    filter.setAllProperties();
    
    StringBuffer buffer = new StringBuffer();
    filter.filter(calendar, buffer);
    StringReader sr = new StringReader(buffer.toString());
    
    Calendar filterCal = cb.build(sr);
    
    Assert.assertEquals(2, filterCal.getComponents().getComponents("VEVENT").size());
    // Make sure 2nd and 3rd override are dropped
    ComponentList vevents = filterCal.getComponents().getComponents(VEvent.VEVENT);
    Iterator<VEvent> it = vevents.iterator();
    while(it.hasNext()) {
        Component c = it.next();
        Assert.assertNotSame("event 6 changed",c.getProperties().getProperty("SUMMARY").getValue());
        Assert.assertNotSame("event 6 changed 2",c.getProperties().getProperty("SUMMARY").getValue());
    }   
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
/**
 * Gets calendar.
 * @param name The name.
 * @return The calendar.
 * @throws Exception - if something is wrong this exception is thrown.
 */
protected Calendar getCalendar(String name) throws Exception {
    CalendarBuilder cb = new CalendarBuilder();
    InputStream in = getClass().getClassLoader().getResourceAsStream("testdata/expander/" + name);
    if (in == null) {
        throw new IllegalStateException("resource " + name + " not found");
    }        
    Calendar calendar = cb.build(in);
    return calendar;
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
/**
 * Gets calendar.
 *
 * @param name The name.
 * @return The calendar.
 * @throws Exception - if something is wrong this exception is thrown.
 */
protected Calendar getCalendar(String name) throws Exception {
    CalendarBuilder cb = new CalendarBuilder();
    InputStream in = getClass().getClassLoader().getResourceAsStream("testdata/instancelist/" + name);
    if (in == null) {
        throw new IllegalStateException("resource " + name + " not found");
    }
    Calendar calendar = cb.build(in);
    return calendar;
}
 

import net.fortuna.ical4j.data.CalendarBuilder; //导入依赖的package包/类
/**
 * Parse icalendar string into Calendar object.
 * @param calendar icalendar string
 * @return Calendar object
 * @throws ParserException - if something is wrong this exception is thrown.
 * @throws IOException - if something is wrong this exception is thrown.
 */
public static Calendar parseCalendar(String calendar) throws ParserException, IOException {
    if (calendar == null) {
        return null;
    }
    CalendarBuilder builder = CalendarBuilderDispenser.getCalendarBuilder();
    clearTZRegistry(builder);
    
    StringReader sr = new StringReader(calendar);
    return builder.build(sr);
}