Java Code Examples for java.time.LocalDateTime#format()

@Override
public void sayHello(HelloRequest req, StreamObserver<HelloReply> responseObserver) {
    HelloRequest.DateTime reqDateTime = req.getDateTime();
    int i = 0;
    try {
        i = Integer.parseInt(reqDateTime.getTime());
    } catch (Exception e) {
        //TODO: handle exception
    }
    LocalDateTime dt = LocalDateTime.now();
    String dtStr = dt.format(datetimeFormatter[i % datetimeFormatter.length]);
    HelloRequest.DateTime rplyDateTime = HelloRequest.DateTime.newBuilder(reqDateTime)
        .setDate(dtStr).build();
    HelloReply reply = HelloReply.newBuilder()
        .setMessage("Hello " + req.getName())
        .setDateTime(rplyDateTime)
        .build();
    responseObserver.onNext(reply);
    responseObserver.onCompleted();
}
 

@Override
public Path nextFilename() {
    for ( int i = 1 ; ; i++ ) {
        // This "must" be unique unless it is the same time as last time
        // because time moves forward and we checked for future files in init().
        LocalDateTime timestamp = LocalDateTime.now();
        String fn = baseFilename + DATETIME_SEP + timestamp.format(fmtDateTime);
        Path path = directory.resolve(fn);
        if ( ! Files.exists(path) ) {
            valid = true;
            lastTimestamp = timestamp;
            lastAllocatedPath = path;
            return lastAllocatedPath;
        }
        // Try again.
        if ( i == RETRIES)
            throw new FileRotateException("Failed to find a new, fresh filename: "+timestamp);
        Lib.sleep(1000);
    }
}
 

@Override
public int getNumberOfRuns(String pattern, String status, Date started_after) {
   String starttime = null;
   if(started_after != null) {
     LocalDateTime time = started_after.toInstant()
         .atZone(ZoneId.systemDefault()).toLocalDateTime();
     ZoneOffset offset = ZoneId.systemDefault().getRules().getOffset(time);
     starttime = time.format(DateTimeFormatter.ISO_DATE_TIME) + offset.getId();
   }
   
   String query = 
       "PREFIX exec: <http://www.wings-workflows.org/ontology/execution.owl#>\n" + 
        "PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>\n" +
       "SELECT (COUNT(*) as ?count)\n" + 
       "WHERE { " +
        "?run a exec:Execution .\n" +
        "?run exec:hasExecutionStatus ?status .\n" +
        "?run exec:hasTemplate ?template .\n" +
        "?run exec:hasStartTime ?start .\n" +
        (status != null ? 
            "?run exec:hasExecutionStatus '" + status + "') .\n" : "") +
        (starttime != null ?
            "FILTER(?start > '"+starttime+"'^^xsd:dateTime) .\n" : "") +      
        (pattern != null ? 
            "FILTER REGEX(str(?template), '" + newtplurl + ".*" + pattern + ".*') .\n" : "") +
        "FILTER REGEX(str(?run), '" + newrunurl + "') .\n" +
       "}";

   this.start_read();
   ArrayList<ArrayList<SparqlQuerySolution>> result = unionkb.sparqlQuery(query);
   int size = (Integer) result.get(0).get(0).getObject().getValue();
   this.end();
   return size;
}
 

private void sendEmail (TestRevisionTO testRevisionTO, LocalDateTime dateTime) {
	Student student = studentDAO.getStudentByEnrollment (testRevisionTO.getEnrollment());
	String enrollment = student.getEnrollment(); //testRevisionTO.getEnrollment()
	String studentName = student.getName();
	String email = student.getEmail();
	Discipline discipline = disciplineDAO.getDisciplineByCode (testRevisionTO.getDisciplineCode());
	String disciplineName = discipline.getName(); 
	String disciplineCode = discipline.getCode(); // testRevisionTO.getDisciplineCode()
	String date  = dateTime.format(DateTimeFormatter.ISO_LOCAL_DATE);
	String time  = dateTime.format(DateTimeFormatter.ofPattern("HH:mm"));
	// sending an email using the above information ...
	System.out.println("sending an email to : " + studentName + " ...");
}
 

private void updateChartStockFromYahoo(StockProduct stock, ChartType type, ChartHistoSize histoSize, ChartHistoMovingAverage histoAverage,
		ChartHistoTimeSpan histoPeriod, Integer intradayWidth, Integer intradayHeight) {
	
	Preconditions.checkNotNull(stock, "stock must not be null!");
	Preconditions.checkNotNull(type, "ChartType must not be null!");
	
	String guid = AuthenticationUtil.getPrincipal().getUsername();
	SocialUser socialUser = usersConnectionRepository.getRegisteredSocialUser(guid);
	if(socialUser == null){
		return;
	}
	String token = socialUser.getAccessToken();
	Connection<Yahoo2> connection = connectionRepository.getPrimaryConnection(Yahoo2.class);
	
       if (connection != null) {
		byte[] yahooChart = connection.getApi().financialOperations().getYahooChart(stock.getId(), type, histoSize, histoAverage, histoPeriod, intradayWidth, intradayHeight, token);
		
		DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd_HHmm");
		LocalDateTime dateTime = LocalDateTime.now();
		String formattedDateTime = dateTime.format(formatter); // "1986-04-08_1230"
		String imageName = stock.getId().toLowerCase()+"_"+type.name().toLowerCase()+"_"+formattedDateTime+".png";
    	String pathToYahooPicture = env.getProperty("user.home").concat(env.getProperty("pictures.yahoo.path")).concat(File.separator+imageName);
    	
           try {
               Path newPath = Paths.get(pathToYahooPicture);
               Files.write(newPath, yahooChart, StandardOpenOption.CREATE);
           } catch (IOException e) {
               throw new Error("Storage of " + pathToYahooPicture+ " failed", e);
           }
           
           ChartStock chartStock = new ChartStock(stock, type, histoSize, histoAverage, histoPeriod, intradayWidth, intradayHeight, pathToYahooPicture);
           chartStockRepository.save(chartStock);
       }
}
 

/**
 * Format: "yyyyMMddHHmmssSSS"
 * @param date
 * @return
 */
private static String getSimpleDateFormat(Date date) {
	DateTimeFormatter sss = new DateTimeFormatterBuilder()
			.appendPattern("yyyyMMddHHmmssSSS")
			.toFormatter(resbud.getLocale());
	LocalDateTime userDate1 = LocalDateTime.ofInstant(date.toInstant(), ZoneOffset.UTC);
	return userDate1.format(sss);
}
 

public static void main(String[] args) {

        LocalDateTime sylvester = LocalDateTime.of(2014, Month.DECEMBER, 31, 23, 59, 59);

        DayOfWeek dayOfWeek = sylvester.getDayOfWeek();
        System.out.println(dayOfWeek);      // WEDNESDAY

        Month month = sylvester.getMonth();
        System.out.println(month);          // DECEMBER

        long minuteOfDay = sylvester.getLong(ChronoField.MINUTE_OF_DAY);
        System.out.println(minuteOfDay);    // 1439

        Instant instant = sylvester
                .atZone(ZoneId.systemDefault())
                .toInstant();

        Date legacyDate = Date.from(instant);
        System.out.println(legacyDate);     // Wed Dec 31 23:59:59 CET 2014


        DateTimeFormatter formatter =
                DateTimeFormatter
                        .ofPattern("MMM dd, yyyy - HH:mm");

        LocalDateTime parsed = LocalDateTime.parse("Nov 03, 2014 - 07:13", formatter);
        String string = parsed.format(formatter);
        System.out.println(string);     // Nov 03, 2014 - 07:13
    }
 

/**
 * (3) 当Trigger错过被激发时执行,比如当前时间有很多触发器都需要执行，但是线程池中的有效线程都在工作，
 * 那么有的触发器就有可能超时，错过这一轮的触发。
 * Called by the Scheduler when a Trigger has misfired.
 */
@Override
public void triggerMisfired(Trigger trigger) {
    JobDataMap jobDataMap = trigger.getJobDataMap();
    String serviceName = jobDataMap.getString("serviceName");
    String versionName = jobDataMap.getString("versionName");
    String methodName = jobDataMap.getString("methodName");

    LocalDateTime currentTime = LocalDateTime.now(ZoneId.of("Asia/Shanghai"));
    trigger.getJobDataMap().put("startTime", currentTime);

    String currentTimeAsString = currentTime.format(DATE_TIME);
    String message = String.format("SchedulerTriggerListener::triggerMisfired;Task[%s:%s:%s] 触发超时,错过[%s]这一轮触发", serviceName, versionName, methodName, currentTimeAsString);
    sendMessage(serviceName, versionName, methodName, executorService, message, true, jobDataMap, "triggerTimeOut");
}
 

/**
 * Write single record line into csv file
 * @param now current time
 * @param object one line record
 */
@SuppressWarnings("unchecked")
private void write(final LocalDateTime now, final Object object) {
    if (object instanceof Map) {
        final Map<String, Object> routerLinkInfo = (Map<String, Object>) object;

        logger.trace("General information: {}", routerLinkInfo);

        try {
            String timestamp = now.format(formatter);

            csvPrinter.printRecord(timestamp,
                    routerLinkInfo.get("name"), routerLinkInfo.get("version"),
                    routerLinkInfo.get("mode"), routerLinkInfo.get("linkRouteCount"),
                    routerLinkInfo.get("autoLinkCount"), routerLinkInfo.get("linkCount"),
                    routerLinkInfo.get("nodeCount"), routerLinkInfo.get("addrCount"),
                    routerLinkInfo.get("connectionCount"));


        } catch (IOException e) {
            logger.error("Unable to write record: {}", e.getMessage(), e);
        }
    }
    else {
        logger.warn("Invalid value type for general info");
    }
}
 

@Test
public void shouldAlertWhenFutureExpiry() throws HttpMalformedHeaderException {
    // Given - value empty and epoch start date
    HttpMessage msg = new HttpMessage();
    msg.setRequestHeader("GET https://www.example.com/test/ HTTP/1.1");
    // When
    msg.setResponseBody("<html></html>");

    DateTimeFormatter df =
            DateTimeFormatter.ofPattern("EEE, dd MMM yyyy HH:mm:ss zzz")
                    .withZone(ZoneOffset.UTC);
    LocalDateTime dateTime = LocalDateTime.now().plusYears(1);
    String expiry = dateTime.format(df);

    msg.setResponseHeader(
            "HTTP/1.1 200 OK\r\n"
                    + "Server: Apache-Coyote/1.1\r\n"
                    + "Set-Cookie: test=\"\"; expires="
                    + expiry
                    + "; Path=/; secure\r\n"
                    + "Content-Type: text/html;charset=ISO-8859-1\r\n"
                    + "Content-Length: "
                    + msg.getResponseBody().length()
                    + "\r\n");
    scanHttpResponseReceive(msg);
    // Then
    assertThat(alertsRaised.size(), equalTo(1));
    assertThat(alertsRaised.get(0).getParam(), equalTo("test"));
    assertThat(alertsRaised.get(0).getEvidence(), equalTo("Set-Cookie: test"));
}
 

/**@
 * 获取与今日相差天数的日期格式，负为日期前，正为日期后。如yyyy-MM-dd HH
 *
 * @param days
 * @param formatter
 * @return
 */
public static String getOffToDay(int days, DateTimeFormatter formatter) {
    LocalDateTime ldt = LocalDateTime.ofInstant(Instant.ofEpochMilli(currentTimeMillis()), ZoneId.systemDefault());
    if (days < 0) {
        ldt = ldt.minusDays(-days);
    } else {
        ldt = ldt.plusDays(days);
    }
    return ldt.format(formatter);
}
 

private void updateChartStockFromYahoo(StockProduct stock, ChartType type, ChartHistoSize histoSize, ChartHistoMovingAverage histoAverage,
		ChartHistoTimeSpan histoPeriod, Integer intradayWidth, Integer intradayHeight) {
	
	Preconditions.checkNotNull(stock, "stock must not be null!");
	Preconditions.checkNotNull(type, "ChartType must not be null!");
	
	String guid = AuthenticationUtil.getPrincipal().getUsername();
	String token = usersConnectionRepository.getRegisteredSocialUser(guid).getAccessToken();
	ConnectionRepository connectionRepository = usersConnectionRepository.createConnectionRepository(guid);
	Connection<Yahoo2> connection = connectionRepository.getPrimaryConnection(Yahoo2.class);
	
       if (connection != null) {
		byte[] yahooChart = connection.getApi().financialOperations().getYahooChart(stock.getId(), type, histoSize, histoAverage, histoPeriod, intradayWidth, intradayHeight, token);
		
		DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd_HHmm");
		LocalDateTime dateTime = LocalDateTime.now();
		String formattedDateTime = dateTime.format(formatter); // "1986-04-08_1230"
		String imageName = stock.getId().toLowerCase()+"_"+type.name().toLowerCase()+"_"+formattedDateTime+".png";
    	String pathToYahooPicture = env.getProperty("pictures.yahoo.path").concat(File.separator+imageName);
    	
           try {
               Path newPath = Paths.get(pathToYahooPicture);
               Files.write(newPath, yahooChart, StandardOpenOption.CREATE);
           } catch (IOException e) {
               throw new Error("Storage of " + pathToYahooPicture+ " failed", e);
           }
           
           ChartStock chartStock = new ChartStock(stock, type, histoSize, histoAverage, histoPeriod, intradayWidth, intradayHeight, pathToYahooPicture);
           chartStockRepository.save(chartStock);
       }
}
 

/**
 * Get the date of birth of the person in the default date format (Ger. dd.MM.yyyy).
 * 
 * @param person
 * @return
 */
public static String getDateOfBirth(IPerson person){
	LocalDateTime dob = person.getDateOfBirth();
	if (dob != null) {
		return dob.format(defaultDateFormatter);
	}
	return "";
}
 

public static String formatLocalDateTime(LocalDateTime value) {
	value.format(DATE_TIME_FORMATTER);
	return value.toString();
}
 

public static String formatFullTime(LocalDateTime localDateTime, String pattern) {
    DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(pattern);
    return localDateTime.format(dateTimeFormatter);
}
 

default String toRDBSStringLiteral(PropertyType propertyType, Object value) {
    switch (propertyType.ordinal()) {
        case BOOLEAN_ORDINAL:
            Boolean b = (Boolean) value;
            return b.toString();
        case BYTE_ORDINAL:
            Byte byteValue = (Byte) value;
            return byteValue.toString();
        case SHORT_ORDINAL:
            Short shortValue = (Short) value;
            return shortValue.toString();
        case INTEGER_ORDINAL:
            Integer intValue = (Integer) value;
            return intValue.toString();
        case LONG_ORDINAL:
            Long longValue = (Long) value;
            return longValue.toString();
        case FLOAT_ORDINAL:
            Float floatValue = (Float) value;
            return floatValue.toString();
        case DOUBLE_ORDINAL:
            Double doubleValue = (Double) value;
            return doubleValue.toString();
        case STRING_ORDINAL:
            return "'" + value.toString() + "'";
        case LOCALDATE_ORDINAL:
            LocalDate localDateValue = (LocalDate) value;
            return "'" + localDateValue.toString() + "'";
        case LOCALDATETIME_ORDINAL:
            LocalDateTime localDateTimeValue = (LocalDateTime) value;
            return "'" + localDateTimeValue.format(DateTimeFormatter.ISO_LOCAL_DATE_TIME) + "'";
        case LOCALTIME_ORDINAL:
            LocalTime localTimeValue = (LocalTime) value;
            return "'" + localTimeValue.toString() + "'";
        case ZONEDDATETIME_ORDINAL:
            break;
        case PERIOD_ORDINAL:
            break;
        case DURATION_ORDINAL:
            break;
        case JSON_ORDINAL:
            break;
        case POINT_ORDINAL:
            break;
        case LINESTRING_ORDINAL:
            break;
        case POLYGON_ORDINAL:
            break;
        case GEOGRAPHY_POINT_ORDINAL:
            break;
        case GEOGRAPHY_POLYGON_ORDINAL:
            break;
        case boolean_ARRAY_ORDINAL:
            break;
        case BOOLEAN_ARRAY_ORDINAL:
            break;
        case byte_ARRAY_ORDINAL:
            break;
        case BYTE_ARRAY_ORDINAL:
            break;
        case short_ARRAY_ORDINAL:
            break;
        case SHORT_ARRAY_ORDINAL:
            break;
        case int_ARRAY_ORDINAL:
            break;
        case INTEGER_ARRAY_ORDINAL:
            break;
        case long_ARRAY_ORDINAL:
            break;
        case LONG_ARRAY_ORDINAL:
            break;
        case float_ARRAY_ORDINAL:
            break;
        case FLOAT_ARRAY_ORDINAL:
            break;
        case double_ARRAY_ORDINAL:
            break;
        case DOUBLE_ARRAY_ORDINAL:
            break;
        case STRING_ARRAY_ORDINAL:
            break;
        case LOCALDATETIME_ARRAY_ORDINAL:
            break;
        case LOCALDATE_ARRAY_ORDINAL:
            break;
        case LOCALTIME_ARRAY_ORDINAL:
            break;
        case ZONEDDATETIME_ARRAY_ORDINAL:
            break;
        case DURATION_ARRAY_ORDINAL:
            break;
        case PERIOD_ARRAY_ORDINAL:
            break;
        case JSON_ARRAY_ORDINAL:
            break;
    }
    return "'" + value.toString() + "'";
}
 

/**
 * Writes a LocalTime to the buffer in the standard SQL format using UTF8 encoding
 */
final void writeTimestamp(LocalDateTime ts) {
  ensureLength(26);
  String t = ts.format(DRDAConstants.DB2_TIMESTAMP_FORMAT);
  buffer.writeCharSequence(t, StandardCharsets.UTF_8);
}
 

public static void main(String[] args) {
    LocalDateTime now = LocalDateTime.now();
    DateTimeFormatter format = DateTimeFormatter.ofPattern("yyyyMMddHHmmss");
    String nowStr = now .format(format);
    System.out.println(nowStr);
}
 

@Override
public String toString(Object o, String formatString, Locale locale) {
  if (formatString == null) return o.toString();
  LocalDateTime ld = (LocalDateTime) o;
  return ld.format(DateTimeFormatter.ofPattern(formatString));
}
 

/**
 * @
 * @param time
 * @param formatter
 * @return
 */
public static String getDateTimeFormat(long time, DateTimeFormatter formatter) {
    LocalDateTime ldt = LocalDateTime.ofInstant(Instant.ofEpochMilli(time), ZoneId.systemDefault());
    return ldt.format(formatter);
}