Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package quickforms.sme; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.text.SimpleDateFormat; import java.util.*; import java.util.Date; import java.util.HashMap; import java.util.Map; import java.util.Set; import javax.mail.*; import javax.mail.internet.*; import org.json.simple.JSONArray; import org.json.simple.JSONObject; import org.json.simple.parser.JSONParser; import quickforms.dao.LookupPair; /** * * @author Priyanka Jain */ public abstract class UseFulMethods { static public String getListAsString(List<Integer> Events) { String eventsStr = "("; for (int i = 0; i < Events.size(); i++) { if (i > 0) { eventsStr += ","; } eventsStr += Events.get(i).toString(); } return eventsStr + ")"; } static public List<Map> createRSContext(String oldContextStr) throws Exception { JSONParser parser = new JSONParser(); JSONArray lang = (JSONArray) parser.parse(oldContextStr); List<Map> oldContextList = new ArrayList<Map>(); for (int i = 0; i < lang.size(); i++) { Map<String, String[]> oldContext = new HashMap<String, String[]>(); JSONObject updateRow = (JSONObject) lang.get(i); Set<String> keyset1 = updateRow.keySet(); for (String fieldName : keyset1) { String value = (String) updateRow.get((Object) fieldName); oldContext.put(fieldName, new String[] { value }); } oldContextList.add(oldContext); } return oldContextList; } static public Map<String, String> createLookUP(List<LookupPair> lookupBetaslist) throws Exception { Map<String, String> lookUP = new HashMap<String, String>(); for (LookupPair fieldName : lookupBetaslist) { lookUP.put(fieldName.right, fieldName.right2); } return lookUP; } static public boolean contextExist(Object attribute) { if (attribute == null) { return false; //it doesn't exits' } if (attribute instanceof String) { return (!((String) attribute).isEmpty()); //it doesn't exits' } if (attribute instanceof Map) { return (!((Map) attribute).isEmpty()); //it doesn't exits' } return true; } static public String timeStampFormat(String dateStamp) throws Exception { String dateTimeStamp = null; final String DB_FORMAT = "yyyy-MM-dd HH:mm:ss"; //database format final String NEW_FORMAT = "MM/dd/yyyy HH:mm"; //frontend format and created date format "yyyy/MM/dd HH:mm" Date date = null; //SimpleDateFormat formatter = new SimpleDateFormat(); if (dateStamp.contains("/")) { date = getDateObj(dateStamp, NEW_FORMAT); //formatter.applyPattern(NEW_FORMAT); } if (dateStamp.contains("-")) { date = getDateObj(dateStamp, DB_FORMAT); //formatter.applyPattern(DB_FORMAT); } //date = formatter.parse(dateStamp); //formatter.applyPattern(NEW_FORMAT); dateTimeStamp = getStringDateObj(date, NEW_FORMAT); return dateTimeStamp; } static public Date getDateObj(String dateStamp, String format) throws Exception { SimpleDateFormat formatter = new SimpleDateFormat(format); Date date = formatter.parse(dateStamp); return date; } static public String getStringDateObj(Date dateObj, String format) throws Exception { SimpleDateFormat formatter = new SimpleDateFormat(format); String dateTimeStamp = formatter.format(dateObj); return dateTimeStamp; } static public void sendEmail(String d_email, String pwd, String m_to, String m_subject, String message) throws Exception { final String from = d_email; final String password = pwd; class SMTPAuthenticator extends Authenticator { public PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(from, password); } } //String d_uname = "email"; //String d_password = "password"; String d_host = "smtp.gmail.com"; String d_port = "465"; //465,587 Properties props = new Properties(); props.put("mail.smtp.user", from); props.put("mail.smtp.host", d_host); props.put("mail.smtp.port", d_port); props.put("mail.smtp.starttls.enable", "true"); props.put("mail.smtp.debug", "true"); props.put("mail.smtp.auth", "true"); props.put("mail.smtp.socketFactory.port", d_port); props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); props.put("mail.smtp.socketFactory.fallback", "false"); SMTPAuthenticator auth = new SMTPAuthenticator(); Session session = Session.getInstance(props, auth); session.setDebug(true); MimeMessage msg = new MimeMessage(session); //msg.setText(message); // Send the actual HTML message, as big as you like msg.setContent(message, "text/html"); msg.setSubject(m_subject); msg.setFrom(new InternetAddress(from)); msg.addRecipient(Message.RecipientType.TO, new InternetAddress(m_to)); Transport transport = session.getTransport("smtps"); transport.connect(d_host, 465, from, password); transport.sendMessage(msg, msg.getAllRecipients()); transport.close(); } static public String getApp_PropertyFile_Path(String app, String canonicalFilePath) { String fileName = (Character.toString(app.charAt(0)).toUpperCase() + app.substring(1)); System.out.println(canonicalFilePath); String[] str_array = canonicalFilePath.split("\\."); String folderPath = ""; for (int i = 0; i < ((str_array.length) - 1); i++) { folderPath = folderPath + str_array[i] + "/"; } String filePath = folderPath + fileName + "ConfigFile.properties"; return filePath; } static public Map<String, String> getProperties(String filePath) throws IOException { Properties prop = new Properties(); InputStream inputStream = new Object() { }.getClass().getClassLoader().getResourceAsStream(filePath); prop.load(inputStream); if (inputStream == null) { throw new FileNotFoundException("file '" + filePath + "' not found "); } Date time = new Date(System.currentTimeMillis()); System.out.println(time); Map<String, String> map = new HashMap<String, String>((Map) prop); return map; } }