| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.dashbuilder.dataset.date; |
| |
| import java.text.SimpleDateFormat; |
| import java.util.Calendar; |
| import java.util.Date; |
| import java.util.GregorianCalendar; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.dashbuilder.dataset.DataColumn; |
| import org.dashbuilder.dataset.group.DateIntervalPattern; |
| import org.dashbuilder.dataset.group.DateIntervalType; |
| import org.dashbuilder.dataset.group.GroupStrategy; |
| |
| public class DateUtils { |
| |
| public static final SimpleDateFormat FORMATTER_YEAR = new SimpleDateFormat(DateIntervalPattern.YEAR); |
| public static final SimpleDateFormat FORMATTER_MONTH = new SimpleDateFormat(DateIntervalPattern.MONTH); |
| public static final SimpleDateFormat FORMATTER_DAY = new SimpleDateFormat(DateIntervalPattern.DAY); |
| public static final SimpleDateFormat FORMATTER_HOUR = new SimpleDateFormat(DateIntervalPattern.HOUR); |
| public static final SimpleDateFormat FORMATTER_MINUTE = new SimpleDateFormat(DateIntervalPattern.MINUTE); |
| public static final SimpleDateFormat FORMATTER_SECOND = new SimpleDateFormat(DateIntervalPattern.SECOND); |
| |
| private static final String MONTH_START = "-M"; |
| private static final String MONTH_END = "-"; |
| private static final String DAY_START = "-D"; |
| private static final String DAY_END = " "; |
| private static final String HOUR_START = " H"; |
| private static final String HOUR_END = ":"; |
| private static final String MINUTE_START = ":m"; |
| private static final String MINUTE_END = ":"; |
| private static final String SECOND_START = ":s"; |
| private static final String SECOND_END = ":"; |
| |
| public static Date parseDate(DataColumn dateColumn, Object date) throws Exception { |
| DateIntervalType type = DateIntervalType.getByName(dateColumn.getIntervalType()); |
| GroupStrategy strategy = dateColumn.getColumnGroup().getStrategy(); |
| return parseDate(type, strategy, date); |
| } |
| |
| public static Date parseDate(DateIntervalType type, GroupStrategy strategy, Object date) throws Exception { |
| if (date == null) return null; |
| |
| // Fixed grouping |
| if (GroupStrategy.FIXED.equals(strategy)) { |
| Calendar c = GregorianCalendar.getInstance(); |
| |
| if (DateIntervalType.SECOND.equals(type)) { |
| c.set(Calendar.SECOND, ((Number) date).intValue()); |
| return c.getTime(); |
| } |
| if (DateIntervalType.MINUTE.equals(type)) { |
| c.set(Calendar.MINUTE, ((Number) date).intValue()); |
| return c.getTime(); |
| } |
| if (DateIntervalType.HOUR.equals(type)) { |
| c.set(Calendar.HOUR, ((Number) date).intValue()); |
| return c.getTime(); |
| } |
| if (DateIntervalType.DAY.equals(type)) { |
| c.set(Calendar.DAY_OF_MONTH, ((Number) date).intValue()); |
| return c.getTime(); |
| } |
| if (DateIntervalType.MONTH.equals(type)) { |
| c.set(Calendar.MONTH, ((Number) date).intValue()-1); |
| c.set(Calendar.DAY_OF_MONTH, 1); |
| return c.getTime(); |
| } |
| if (DateIntervalType.QUARTER.equals(type)) { |
| c.set(Calendar.MONTH, ((Number) date).intValue()-1); |
| c.set(Calendar.DAY_OF_MONTH, 1); |
| return c.getTime(); |
| } |
| throw new IllegalArgumentException("Interval size '" + type + "' not supported for " + |
| "fixed date intervals. The only supported sizes are: " + |
| StringUtils.join(DateIntervalType.FIXED_INTERVALS_SUPPORTED, ",")); |
| } |
| |
| // Dynamic grouping |
| if (type.getIndex() <= DateIntervalType.SECOND.getIndex()) { |
| return FORMATTER_SECOND.parse(date.toString()); |
| } |
| if (type.getIndex() <= DateIntervalType.MINUTE.getIndex()) { |
| return FORMATTER_MINUTE.parse(date.toString()); |
| } |
| if (type.getIndex() <= DateIntervalType.HOUR.getIndex()) { |
| return FORMATTER_HOUR.parse(date.toString()); |
| } |
| if (type.getIndex() <= DateIntervalType.DAY.getIndex()) { |
| return FORMATTER_DAY.parse(date.toString()); |
| } |
| if (type.getIndex() <= DateIntervalType.QUARTER.getIndex()) { |
| return FORMATTER_MONTH.parse(date.toString()); |
| } |
| return FORMATTER_YEAR.parse(date.toString()); |
| } |
| |
| public static String ensureTwoDigits(String date, DateIntervalType intervalType) { |
| String result = date; |
| if (DateIntervalType.compare(intervalType, DateIntervalType.MONTH) <= 0) { |
| result = ensureTwoDigits(result, MONTH_START, MONTH_END); |
| } |
| if (DateIntervalType.compare(intervalType, DateIntervalType.DAY) <= 0) { |
| result = ensureTwoDigits(result, DAY_START, DAY_END); |
| } |
| if (DateIntervalType.compare(intervalType, DateIntervalType.HOUR) <= 0) { |
| result = ensureTwoDigits(result, HOUR_START, HOUR_END); |
| } |
| if (DateIntervalType.compare(intervalType, DateIntervalType.MINUTE) <= 0) { |
| result = ensureTwoDigits(result, MINUTE_START, MINUTE_END); |
| } |
| if (DateIntervalType.compare(intervalType, DateIntervalType.SECOND) <= 0) { |
| result = ensureTwoDigits(result, SECOND_START, SECOND_END); |
| } |
| return result; |
| } |
| |
| public static String ensureTwoDigits(String date, String symbolStart, String symbolEnd) { |
| int start = date.indexOf(symbolStart); |
| if (start == -1) return date; |
| |
| int digitStart = start+symbolStart.length(); |
| int end = date.indexOf(symbolEnd, digitStart); |
| if (end == -1) end = date.length(); |
| |
| StringBuilder out = new StringBuilder(); |
| out.append(date.substring(0, start)).append(symbolStart.charAt(0)); |
| if (end-digitStart == 1) { |
| char digit = date.charAt(digitStart); |
| out.append('0').append(digit); |
| out.append(date.substring(digitStart+1)); |
| } else { |
| out.append(date.substring(digitStart)); |
| } |
| return out.toString(); |
| } |
| } |