Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2014 Mxico Abierto * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * * For more information visit https://github.com/mxabierto/avisos. */ package mx.org.cedn.avisosconagua.util; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.Locale; import java.util.TimeZone; import java.util.regex.Matcher; import java.util.regex.Pattern; import com.mongodb.BasicDBObject; /** * Utility class with common operation methods. * @author hasdai */ public class Utils { public static final TimeZone tz = TimeZone.getTimeZone("America/Mexico_City"); public static final TimeZone utc = TimeZone.getTimeZone("UTC"); public static final SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy HH:mm"); private static final SimpleDateFormat sdfjd = new SimpleDateFormat("dd/MM/yyyy"); public static final SimpleDateFormat diaformater = new SimpleDateFormat("dd 'de' MMMMM 'del' yyyy", Locale.forLanguageTag("es-mx")); public static final SimpleDateFormat horaformater = new SimpleDateFormat("HH:mm", Locale.forLanguageTag("es-mx")); public static final SimpleDateFormat isoformater = new SimpleDateFormat("YYYY-MM-dd'T'HH:mm:ssXXX"); public static final SimpleDateFormat orderformater = new SimpleDateFormat("YYYY-MM-dd HH:mm"); static { diaformater.setTimeZone(tz); horaformater.setTimeZone(tz); isoformater.setTimeZone(tz); sdfjd.setTimeZone(tz); sdf.setTimeZone(tz); } /** * Parses a date string. * @param date date String * @return Date object from the parsed string * @throws ParseException */ public static Date getDateFromString(String date) throws ParseException { return sdfjd.parse(date); } /** * Gets a formetted string representation for the day and time of a date. * @param date date string * @return string representation for the day and time */ public static String getDiaText(String date) { String fecha = ""; try { Date fec = getDateFromString(date); fecha = diaformater.format(fec); } catch (ParseException pe) { pe.printStackTrace(); } return fecha; } /** * ISO formats a date string. * @param date date string * @return date string in ISO format */ public static String getISODate(String date) { String fecha = ""; try { Date fec = sdf.parse(date); fecha = isoformater.format(fec); } catch (ParseException pe) { pe.printStackTrace(); } return fecha; } /** * Formats a date string for sort purposes. * @param date date string * @return formatted date string */ public static String getOrderDate(String date) { String fecha = ""; try { Date fec = sdf.parse(date); fecha = orderformater.format(fec); } catch (ParseException pe) { pe.printStackTrace(); } return fecha; } /** * Gets the string title for the HTML representation of the advice * @param type advice type. One of pacdp|atldp|pacht|atlht. * @param dist distance threshold * @return string title for the HTML advice */ public static String getTituloBoletinHtml(String type, String dist) { String titulo = ""; switch (dist) { case "lessthan500km": titulo = "Aviso "; break; case "morethan500km": titulo = "Aviso "; break; case "land": titulo = "Aviso "; break; } switch (type) { case "pacdp": titulo = titulo + "de zonas de baja presión en el Pacífico con potencial ciclónico"; break; case "pacht": titulo = titulo + "de Ciclón Tropical en el Pacífico"; break; case "atldp": titulo = titulo + "de zonas de baja presión en el Atlántico con potencial ciclónico"; break; case "atlht": titulo = titulo + "de Ciclón Tropical en el Atlántico"; break; } return titulo; } /** * Gets the advice title for the generated files. * @param type advice type. One of pacdp|atldp|pacht|atlht * @return advice title */ public static String getTituloBoletin(String type) { String titulo = ""; switch (type) { case "pacdp": titulo = "Aviso de zonas de baja presin en el Pacfico con potencial ciclnico"; break; case "pacht": titulo = "Aviso de Cicln Tropical en el Pacfico"; break; case "atldp": titulo = "Aviso de zonas de baja presin en el Atlntico con potencial ciclnico"; break; case "atlht": titulo = "Aviso de Cicln Tropical en el Atlntico"; break; } return titulo; } /** * Gets the region from the advice type * @param type advice type. One of pacdp|atldp|pacht|atlht * @return String regionName */ public static String getRegionFromAdviceType(String type) { if (type.startsWith("pac")) { return "el Pacfico"; } else if (type.startsWith("atl")) { return "el Atlntico"; } return "Mxico"; } /** * Gets a String value from a map or an empty String. * * @param map Map to get value from * @param key Key * @return String value for the given key or an empty String. */ public static String getValidFieldFromHash(HashMap<String, String> map, String key) { String ret = map.get(key); if (ret == null) { ret = ""; } return ret; } /** * Escapes quotes in a string using the corresponding HTML entity. * @param string original string * @return escaped string */ public static String escapeQuote(String string) { return string.replaceAll("\"", """); } /** * Tokenizes a string splitting in base to the provided regexp. * @param source Source string to tokenize. * @param regex Regular expression for token matching. * @return List of tokens. */ public static ArrayList<String> tokenize(String source, String regex) { ArrayList<String> ret = new ArrayList<String>(); Pattern logEntry = Pattern.compile(regex, Pattern.DOTALL); Matcher matchPattern = logEntry.matcher(source); while (matchPattern.find()) { ret.add(matchPattern.group(1)); } return ret; } /** * Finds out whether advisory has areas defined or nicht * @param aviso Yet another DB object (typically an advisory) * @return Boolean can I has Areaz? */ public static Boolean canIHasAreaz(BasicDBObject aviso) { if (null != aviso) { BasicDBObject init = (BasicDBObject) aviso.get("init"); for (String key : init.keySet()) if (key.startsWith("area-")) return true; } return false; } }