Java tutorial
/* * * This is a simple Email Queue management system * Copyright (C) 2012 Imran M Yousuf (imyousuf@smartitengineering.com) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.smartitengineering.emailq.binder.guice; import com.google.inject.AbstractModule; import com.google.inject.name.Names; import com.smartitengineering.emailq.service.EmailService; import com.smartitengineering.emailq.service.impl.EmailServiceImpl; import com.smartitengineering.util.bean.PropertiesLocator; import java.util.Properties; import javax.mail.Authenticator; import javax.mail.PasswordAuthentication; import javax.mail.Session; import org.apache.commons.lang.math.NumberUtils; /** * * @author imyousuf */ public class EmailModule extends AbstractModule { public static final String DOMAIN_PROPS = "domainProps"; public static final String CRON_JOB_DELAY = "cronJobDelayInSeconds"; public static final String CRON_ENABLED = "cronEnabled"; public static final String SMTP_HOST = "mail.smtp.host"; public static final String SMTP_PORT = "mail.smtp.port"; public static final String SMTP_USER = "mail.smtp.user"; public static final String SMTP_PWD = "mail.smtp.password"; public static final String SMTP_AUTH = "mail.smtp.auth"; public static final String SMTP_TLS = "mail.smtp.tls"; public static final String SMTP_SSL = "mail.smtp.ssl"; private static final String JAVAMAIL_SMTP_HOST = SMTP_HOST; private static final String JAVAMAIL_SMTP_PORT = SMTP_PORT; private static final String JAVAMAIL_SMTP_USER = SMTP_USER; private static final String JAVAMAIL_SMTP_AUTH = SMTP_AUTH; private static final String JAVAMAIL_SMTP_TLS = "mail.smtp.starttls.enabled"; private static final String JAVAMAIL_SMTP_SSL_SOCKET_FACTORY_CLASS = "mail.smtp.socketFactory.class"; private static final String JAVAMAIL_SMTP_SSL_SOCKET_FACTORY_CLASS_VAL = "javax.net.ssl.SSLSocketFactory"; private static final String JAVAMAIL_SMTP_SSL_SOCKET_FACTORY_PORT = "mail.smtp.socketFactory.port"; private final String workspaceIdNamespace; private final String workspaceIdName; private final String reportNamespace; private final String smtpHost, smtpUser, smtpPassword; private final int smtpPort, cronDelayInSeconds; private final boolean authEnabled, tlsEnabled, sslEnabled, cronEnabled; public EmailModule(Properties properties) { if (properties == null) { workspaceIdNamespace = ""; workspaceIdName = ""; reportNamespace = ""; smtpHost = "localhost"; smtpUser = ""; smtpPassword = ""; smtpPort = 2525; authEnabled = false; tlsEnabled = false; sslEnabled = false; cronDelayInSeconds = 120; cronEnabled = true; } else { smtpHost = properties.getProperty(SMTP_HOST, "localhost"); smtpUser = properties.getProperty(SMTP_USER, ""); smtpPassword = properties.getProperty(SMTP_PWD, ""); smtpPort = NumberUtils.toInt(properties.getProperty(SMTP_PORT), 2525); authEnabled = Boolean.parseBoolean(properties.getProperty(SMTP_AUTH)); tlsEnabled = Boolean.parseBoolean(properties.getProperty(SMTP_TLS)); sslEnabled = Boolean.parseBoolean(properties.getProperty(SMTP_SSL)); cronEnabled = Boolean.parseBoolean(properties.getProperty(CRON_ENABLED)); cronDelayInSeconds = NumberUtils.toInt(properties.getProperty(CRON_JOB_DELAY), -1); PropertiesLocator propertiesLocator = new PropertiesLocator(); propertiesLocator.setSmartLocations(properties.getProperty(DOMAIN_PROPS)); Properties mainProps = new Properties(); try { propertiesLocator.loadProperties(mainProps); } catch (Exception ex) { throw new IllegalStateException(ex); } workspaceIdNamespace = mainProps .getProperty("com.smartitengineering.emailq.domains.workspaceId.namespace", ""); workspaceIdName = mainProps.getProperty("com.smartitengineering.emailq.domains.workspaceId.name", ""); reportNamespace = mainProps.getProperty("com.smartitengineering.emailq.domains.namespace", ""); } } @Override protected void configure() { bind(EmailService.class).to(EmailServiceImpl.class).asEagerSingleton(); configureJavaMailSession(); if (cronDelayInSeconds > 0) { bind(Integer.class).annotatedWith(Names.named("mailSenderCronDelayInSeonds")) .toInstance(new Integer(cronDelayInSeconds)); } bind(Boolean.class).annotatedWith(Names.named("mailSenderCronEnabled")).toInstance(cronEnabled); } private void configureJavaMailSession() { Properties properties = new Properties(); properties.setProperty(JAVAMAIL_SMTP_HOST, smtpHost); properties.setProperty(JAVAMAIL_SMTP_PORT, String.valueOf(smtpPort)); if (sslEnabled) { properties.setProperty(JAVAMAIL_SMTP_SSL_SOCKET_FACTORY_CLASS, JAVAMAIL_SMTP_SSL_SOCKET_FACTORY_CLASS_VAL); properties.setProperty(JAVAMAIL_SMTP_SSL_SOCKET_FACTORY_PORT, String.valueOf(smtpPort)); } else if (tlsEnabled) { properties.setProperty(JAVAMAIL_SMTP_TLS, String.valueOf(tlsEnabled)); } if (authEnabled) { properties.setProperty(JAVAMAIL_SMTP_USER, smtpUser); properties.setProperty(JAVAMAIL_SMTP_AUTH, String.valueOf(authEnabled)); bind(Session.class).toInstance(Session.getInstance(properties, new Authenticator() { @Override protected PasswordAuthentication getPasswordAuthentication() { return new PasswordAuthentication(smtpUser, smtpPassword); } })); } else { bind(Session.class).toInstance(Session.getInstance(properties)); } } }