Source Code Cross Referenced for Mail.java in  » Content-Management-System » TransferCM » com » methodhead » mail » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Content Management System » TransferCM » com.methodhead.mail 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* 
002:         * Copyright (C) 2006 Methodhead Software LLC.  All rights reserved.
003:         * 
004:         * This file is part of TransferCM.
005:         * 
006:         * TransferCM is free software; you can redistribute it and/or modify it under the
007:         * terms of the GNU General Public License as published by the Free Software
008:         * Foundation; either version 2 of the License, or (at your option) any later
009:         * version.
010:         * 
011:         * TransferCM is distributed in the hope that it will be useful, but WITHOUT ANY
012:         * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
013:         * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
014:         * details.
015:         * 
016:         * You should have received a copy of the GNU General Public License along with
017:         * TransferCM; if not, write to the Free Software Foundation, Inc., 51 Franklin St,
018:         * Fifth Floor, Boston, MA  02110-1301  USA
019:         */
020:
021:        package com.methodhead.mail;
022:
023:        import java.io.File;
024:        import java.util.Properties;
025:        import javax.mail.internet.InternetAddress;
026:        import javax.mail.internet.AddressException;
027:        import org.apache.commons.mail.SimpleEmail;
028:        import org.apache.commons.mail.MultiPartEmail;
029:        import org.apache.commons.mail.HtmlEmail;
030:        import org.apache.commons.mail.EmailException;
031:        import org.apache.commons.mail.EmailAttachment;
032:        import com.methodhead.MhfException;
033:        import org.apache.commons.lang.exception.ExceptionUtils;
034:        import org.apache.commons.lang.builder.ToStringBuilder;
035:        import org.apache.commons.lang.StringUtils;
036:        import org.apache.log4j.Logger;
037:
038:        /**
039:         * Provides simplified interface for sending email messages.  This class uses
040:         * the Jakarta Commons Email API to send messages.
041:         */
042:        public class Mail {
043:
044:            // constructors /////////////////////////////////////////////////////////////
045:
046:            // constants ////////////////////////////////////////////////////////////////
047:
048:            // classes //////////////////////////////////////////////////////////////////
049:
050:            // methods //////////////////////////////////////////////////////////////////
051:
052:            /**
053:             *  <p>
054:             *   Sets the properties that contain configuration parameters.
055:             *   JavaMail is used to send mail, and these properties are
056:             *   passed directly to JavaMail classes.  The following
057:             *   properties (and their default values) are important:
058:             * </p>
059:             * <ul>
060:             *   <li>mail.host (The local machine)</li>
061:             *   <li>mail.from (<tt>username@host</tt>)</li>
062:             * </ul>
063:             * <p>
064:             *   Find information about all setting in Appendix A of the
065:             *   JavaMail API Design Specification.
066:             * </p>
067:             */
068:            public static void init(Properties props) {
069:
070:                if (logger_.isDebugEnabled()) {
071:                    logger_.debug("Initializing with properties "
072:                            + new ToStringBuilder(props).append("mail.host",
073:                                    props.get("mail.host")).append("mail.from",
074:                                    props.get("mail.from")).toString());
075:                }
076:
077:                mailProperties_ = props;
078:            }
079:
080:            /**
081:             * Instantiates and initializes a new <tt>SimpleEmail</tt> (not unit tested).
082:             */
083:            public static SimpleEmail newSimpleEmail() {
084:
085:                SimpleEmail email = new SimpleEmail();
086:                email.setHostName(mailProperties_.getProperty("mail.host"));
087:                return email;
088:            }
089:
090:            /**
091:             * Instantiates and initializes a new <tt>MultiPartEmail</tt> (not unit
092:             * tested).
093:             */
094:            public static MultiPartEmail newMultiPartEmail() {
095:
096:                MultiPartEmail email = new MultiPartEmail();
097:                email.setHostName(mailProperties_.getProperty("mail.host"));
098:                return email;
099:            }
100:
101:            /**
102:             * Instantiates and initializes a new <tt>HtmlEmail</tt> (not unit tested).
103:             */
104:            public static HtmlEmail newHtmlEmail() {
105:
106:                HtmlEmail email = new HtmlEmail();
107:                email.setHostName(mailProperties_.getProperty("mail.host"));
108:                return email;
109:            }
110:
111:            /**
112:             * Utility method to validate an email address.
113:             */
114:            protected static boolean isValidAddress(String address) {
115:
116:                if (address == null)
117:                    return false;
118:
119:                try {
120:                    InternetAddress ia = new InternetAddress(address);
121:                    ia.validate();
122:                } catch (AddressException e) {
123:                    return false;
124:                }
125:
126:                return true;
127:            }
128:
129:            /**
130:             * Sends <tt>text</tt> with <tt>subject</tt> to each email address in
131:             * <tt>to</tt>.  Any invalid email addresses in <tt>to</tt> are ignored, but
132:             * an invalid <tt>from</tt> address will throw an exception.
133:             * <strong>Note:</strong> Each message is sent individually; be aware of the
134:             * load on your mail server.
135:             */
136:            public static void send(String[] to, String from, String subject,
137:                    String text) {
138:
139:                if (logger_.isDebugEnabled()) {
140:                    logger_.debug("Sending plain text email from " + from
141:                            + " with subject \"" + subject + "\", "
142:                            + text.length() + " characters in body.");
143:                }
144:
145:                try {
146:                    for (int i = 0; i < to.length; i++) {
147:                        if (isValidAddress(to[i])) {
148:
149:                            if (logger_.isDebugEnabled()) {
150:                                logger_.debug("Sending message to " + to[i]);
151:                            }
152:
153:                            SimpleEmail email = newSimpleEmail();
154:                            email.addTo(to[i]);
155:                            email.setFrom(from);
156:                            email.setSubject(subject);
157:                            email.setMsg(text);
158:                            email.send();
159:                        } else {
160:                            if (logger_.isDebugEnabled()) {
161:                                logger_.debug("Skipping invalid email address "
162:                                        + to[i]);
163:                            }
164:                        }
165:                    }
166:                } catch (EmailException e) {
167:                    String msg = "Sending plain text email from " + from
168:                            + " with subject \"" + subject + "\", "
169:                            + text.length() + " characters in body.\n"
170:                            + ExceptionUtils.getStackTrace(e);
171:                    logger_.error(msg);
172:                    throw new MhfException(msg);
173:                }
174:            }
175:
176:            /**
177:             * Sends <tt>text</tt> with <tt>subject</tt> to <tt>to</tt>.  If <tt>to</tt>
178:             * is invalid, no email is sent, but an invalid <tt>from</tt> address will
179:             * throw an exception.
180:             */
181:            public static void send(String to, String from, String subject,
182:                    String text) throws EmailException {
183:
184:                send(new String[] { to }, from, subject, text);
185:            }
186:
187:            /**
188:             * Sends <tt>text</tt> and <tt>html</tt> with <tt>subject</tt> to each email
189:             * address in <tt>to</tt>.  Any invalid email addresses in <tt>to</tt> are
190:             * ignored, but an invalid <tt>from</tt> address will throw an
191:             * exception.  <strong>Note:</strong> Each message is sent
192:             * individually; be aware of the load on your mail server.
193:             */
194:            public static void send(String[] to, String from, String subject,
195:                    String text, String html) {
196:
197:                send(to, from, subject, text, html, new File[] {});
198:            }
199:
200:            /**
201:             * Sends <tt>text</tt> with <tt>subject</tt> and <tt>attachments</tt> to each
202:             * email address in <tt>to</tt>.  Any invalid email addresses in <tt>to</tt>
203:             * are ignored, but an invalid <tt>from</tt> address will throw an
204:             * exception.  A null or non-existant file in attachments
205:             * will throw a <tt>MessagingException</tt>.  <strong>Note:</strong> Each
206:             * message is sent individually; be aware of the load on your mail server.
207:             */
208:            public static void send(String[] to, String from, String subject,
209:                    String text, File[] attachments) {
210:
211:                send(to, from, subject, text, null, attachments);
212:            }
213:
214:            /**
215:             * Sends <tt>text</tt> and <tt>html</tt> with <tt>subject</tt> and
216:             * <tt>attachments</tt> to each email address in <tt>to</tt>.  If
217:             * <tt>html</tt> is <tt>null</tt>, a text-only email is sent.  Any invalid
218:             * email addresses in <tt>to</tt> are ignored, but an invalid <tt>from</tt>
219:             * address will throw an exception.  A null or non-existant
220:             * file in attachments will throw a <tt>MessagingException</tt>.
221:             * <strong>Note:</strong> Each message is sent individually; be aware of the
222:             * load on your mail server.
223:             */
224:            public static void send(String[] to, String from, String subject,
225:                    String text, String html, File[] attachments) {
226:
227:                if (logger_.isDebugEnabled()) {
228:                    String textInfo = "no text";
229:                    if (text != null) {
230:                        textInfo = "" + text.length()
231:                                + " characters in text body";
232:                    }
233:
234:                    String htmlInfo = "no html";
235:                    if (html != null) {
236:                        htmlInfo = "" + html.length()
237:                                + " characters in html body";
238:                    }
239:
240:                    logger_.debug("Sending html email from " + from
241:                            + " with subject \"" + subject + "\", " + textInfo
242:                            + ", " + htmlInfo + ", and attachments "
243:                            + StringUtils.join(attachments));
244:                }
245:
246:                try {
247:                    if (attachments == null)
248:                        throw new EmailException("Attachments array is null.");
249:
250:                    //
251:                    // create EmailAttachments
252:                    //
253:                    EmailAttachment[] emailAttachments = new EmailAttachment[attachments.length];
254:
255:                    for (int i = 0; i < attachments.length; i++) {
256:
257:                        //
258:                        // valid attachment?
259:                        //
260:                        if ((attachments[i] == null)
261:                                || !attachments[i].exists()
262:                                || !attachments[i].isFile())
263:
264:                            throw new EmailException("Attachment \""
265:                                    + attachments[i]
266:                                    + "\" does not exist or is not a file.");
267:
268:                        emailAttachments[i] = new EmailAttachment();
269:                        emailAttachments[i].setPath(attachments[i]
270:                                .getAbsolutePath());
271:                    }
272:
273:                    for (int i = 0; i < to.length; i++) {
274:
275:                        if (isValidAddress(to[i])) {
276:
277:                            if (logger_.isDebugEnabled()) {
278:                                logger_.debug("Sending to " + to[i]);
279:                            }
280:
281:                            HtmlEmail email = newHtmlEmail();
282:                            email.addTo(to[i]);
283:                            email.setFrom(from);
284:                            email.setSubject(subject);
285:
286:                            if (text != null)
287:                                email.setTextMsg(text);
288:
289:                            if (html != null)
290:                                email.setHtmlMsg(html);
291:
292:                            //
293:                            // add attachments
294:                            //
295:                            for (int j = 0; j < emailAttachments.length; j++)
296:                                email.attach(emailAttachments[j]);
297:
298:                            email.send();
299:                        } else {
300:                            if (logger_.isDebugEnabled()) {
301:                                logger_.debug("Skipping invalid email address "
302:                                        + to[i]);
303:                            }
304:                        }
305:                    }
306:                } catch (EmailException e) {
307:                    String msg = "Sending html email from " + from + " to "
308:                            + to + " with subject \"" + subject + "\", text \""
309:                            + text + "\", html \"" + html
310:                            + "\", and attachments " + attachments + "\n"
311:                            + ExceptionUtils.getStackTrace(e);
312:                    logger_.error(msg);
313:                    throw new MhfException(msg);
314:                }
315:            }
316:
317:            // properties ///////////////////////////////////////////////////////////////
318:
319:            // attributes ///////////////////////////////////////////////////////////////
320:
321:            protected static Properties mailProperties_ = new Properties();
322:
323:            private static Logger logger_ = Logger.getLogger(Mail.class);
324:        }
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