anlavn.net.Email Maven / Gradle / Ivy

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package anlavn.net;
// Make By Bình An || AnLaVN || KatoVN

import java.io.File;
import java.util.Collections;
import java.util.HashSet;
import java.util.Properties;
import java.util.Set;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.BodyPart;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;

/**The Email class supports create a SMTP to send email.
 * @author AnLaVN - https://github.com/AnLaVN
 */
public class Email {
    private String HostEmail = null, Title = "Email title", Content = "Email content.";
    private Session session = null;
    private Set setTO = new HashSet<>(), setCC = new HashSet<>(), setBCC = new HashSet<>(), setFile = new HashSet<>();
    private InternetAddress[] getAddress(Set set) throws AddressException{
        return InternetAddress.parse(String.join(",", set));
    }
    private void setHost(String hostEmail, final String hostPass, String hostServer, int hostPort){
        this.HostEmail = hostEmail;
        Properties p = new Properties();
        p.put("mail.smtp.auth", "true");
        p.put("mail.smtp.starttls.enable", "true");
        p.put("mail.smtp.host", hostServer);
        p.put("mail.smtp.port", hostPort);
        this.session = Session.getInstance(p, new javax.mail.Authenticator() {
            @Override protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(HostEmail, hostPass);
            }
        });
    }    
    private Email() {}


    /**Create a host SMTP with full information.
     * @param hostEmail is your SMTP email address.

     * @param hostPass is your SMTP server passwords.

     */
    public Email(String hostEmail, String hostPass) {
        setHost(hostEmail, hostPass, "smtp.gmail.com", 587);
    }


    /**Create a host SMTP with full information.
     * @param hostEmail is your SMTP email address.

     * @param hostPass is your SMTP server passwords.

     * @param hostServer is your SMTP server address. Default is 'smtp.gmail.com'.

     */
    public Email(String hostEmail, String hostPass, String hostServer) {
        setHost(hostEmail, hostPass, hostServer, 587);
    }


    /**Create a host SMTP with full information.
     * @param hostEmail is your SMTP email address.

     * @param hostPass is your SMTP server passwords.

     * @param hostServer is your SMTP server address. Default is 'smtp.gmail.com'.

     * @param hostPort is port of your SMTP server. Default is '587'.

     */
    public Email(String hostEmail, String hostPass, String hostServer, int hostPort) {
        setHost(hostEmail, hostPass, hostServer, hostPort);
    }


    /** Use this method to setup email content.
     * @param title is Email Title.

     * @param content is Email Content.

     */
    public final void setEmail(String title, String content){
        this.Title = title;
        this.Content = content;
    }


    /** Use this method to add recipients with type is TO.
     * @param setTO is email address of recipients you want send to.

     * @return true if this set changed.

     */
    public final boolean addSetTO(String... setTO){
        return Collections.addAll(this.setTO, setTO); 
    }
    /** Use this method to add recipients with type is TO.
     * @param setTO is email address of recipients you want send to.

     * @return true if this set changed.

     */
    public final boolean addSetTO(Set setTO){
        return this.setTO.addAll(setTO);
    }
    /** Use this method to get set of recipients with type is TO.
     * @return set of address recipients with type is TO.
     */
    public final Set getSetTO(){
        return this.setTO;
    }
    /** Use this method to clear set of recipients with type is TO.
     */
    public final void clearSetTO(){       this.setTO.clear();   }


    /** Use this method to add recipients with type is CC.
     * @param setCC is email address of recipients you want send carbon copy.

     * @return true if this set changed.

     */
    public final boolean addSetCC(String... setCC){
        return Collections.addAll(this.setCC, setCC); 
    }
    /** Use this method to add recipients with type is CC.
     * @param setCC is email address of recipients you want send carbon copy.

     * @return true if this set changed.

     */
    public final boolean addSetCC(Set setCC){
        return this.setCC.addAll(setCC);
    }
    /** Use this method to get set of recipients with type is CC.
     * @return set of recipients with type is CC.
     */
    public final Set getSetCC(){
        return this.setCC;
    }
    /** Use this method to clear set of recipients with type is CC.
     */
    public final void clearSetCC(){       this.setCC.clear();   }


    /** Use this method to add recipients with type is BCC.
     * @param setBCC is email address of recipients you want send blind carbon copy.

     * @return true if this set changed.

     */
    public final boolean addSetBCC(String... setBCC){
        return Collections.addAll(this.setBCC, setBCC);
    }
    /** Use this method to add recipients with type is BCC.
     * @param setBCC is email address of recipients you want send blind carbon copy.

     * @return true if this set changed.

     */
    public final boolean addSetBCC(Set setBCC){
        return this.setBCC.addAll(setBCC);
    }
    /** Use this method to get set of recipients with type is BCC.
     * @return set of recipients with type is BCC.
     */
    public final Set getSetBCC(){
        return this.setBCC;
    }
    /** Use this method to clear set of recipients with type is BCC.
     */
    public final void clearSetBCC(){      this.setBCC.clear();  }


    /** Use this method to add attachments files to email.
     * @param setFile is attachments files you want send.

     * @return true if this set changed.

     */
    public final boolean addSetAttachments(String... setFile){
        return Collections.addAll(this.setFile, setFile);
    }
    /** Use this method to add attachments files to email.
     * @param setFile is attachments files you want send.

     * @return true if this set changed.

     */
    public final boolean addSetAttachments(Set setFile){
        return this.setFile.addAll(setFile);
    }
    /** Use this method to get set of attachments files.
     * @return set of attachments files.
     */
    public final Set getSetAttachments(){
        return this.setFile;
    }
    /** Use this method to clear set of attachments files.
     */
    public final void clearSetAttachments(){  this.setFile.clear(); }


    /** Use this method to clear content email include title, content email, TO, CC, BCC, Attachments.
     */
    public final void clear(){
        this.Title = "Email title";
        this.Content = "Email content.";
        clearSetTO();
        clearSetCC();
        clearSetBCC();
        clearSetAttachments();
    }


    /**Use this method to send email to recipients.
     * @throws javax.mail.MessagingException throw an exception if there is no internet connection or can't send email to the recipient.
     */
    public final void sendEmail() throws MessagingException {
        Message msg = new MimeMessage(session);
        msg.setFrom(new InternetAddress(HostEmail));
        if(setTO != null) msg.addRecipients(Message.RecipientType.TO, getAddress(setTO));
        if(setCC != null) msg.addRecipients(Message.RecipientType.CC, getAddress(setCC));
        if(setBCC!= null) msg.addRecipients(Message.RecipientType.BCC,getAddress(setBCC));
        msg.setSubject(Title);
        
        if(setFile == null) msg.setContent(Content, "text/html; charset=UTF-8");
        else{
            BodyPart messageBodyPart = new MimeBodyPart();
            messageBodyPart.setContent(Content, "text/html; charset=UTF-8");
            Multipart multipart = new MimeMultipart();
            multipart.addBodyPart(messageBodyPart);
            for(String file : setFile){
                messageBodyPart = new MimeBodyPart();
                messageBodyPart.setDataHandler(new DataHandler(new FileDataSource(file)));
                messageBodyPart.setFileName(new File(file).getName());
                multipart.addBodyPart(messageBodyPart);
            }
            msg.setContent(multipart);
        }
        Transport.send(msg);
    }

}