Ant example source code file (PlainMailer.java)

This example Ant source code file (PlainMailer.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Ant tags/keywords

bufferedinputstream, buildexception, content-type, date, fileinputstream, fileinputstream, header, io, ioexception, ioexception, mailmessage, mailmessage, printstream, printstream, string, util

The PlainMailer.java source code

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package org.apache.tools.ant.taskdefs.email;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Enumeration;
import org.apache.tools.ant.BuildException;
import org.apache.tools.mail.MailMessage;

/**
 * Class responsible for sending email through raw protocol methods.
 *
 * @since Ant 1.5
 */
class PlainMailer extends Mailer {
    /**
     * Sends the email using the apache MailMessage class.
     *
     * @see org.apache.tools.mail.MailMessage
     */
    public void send() {
        try {
            MailMessage mailMessage = new MailMessage(host, port);

            mailMessage.from(from.toString());

            Enumeration e;

            e = replyToList.elements();
            while (e.hasMoreElements()) {
                mailMessage.replyto(e.nextElement().toString());
            }
            e = toList.elements();
            while (e.hasMoreElements()) {
                mailMessage.to(e.nextElement().toString());
            }
            e = ccList.elements();
            while (e.hasMoreElements()) {
                mailMessage.cc(e.nextElement().toString());
            }
            e = bccList.elements();
            while (e.hasMoreElements()) {
                mailMessage.bcc(e.nextElement().toString());
            }
            if (subject != null) {
                mailMessage.setSubject(subject);
            }
            mailMessage.setHeader("Date", getDate());
            if (message.getCharset() != null) {
                mailMessage.setHeader("Content-Type", message.getMimeType()
                    + "; charset=\"" + message.getCharset() + "\"");
            } else {
                mailMessage.setHeader("Content-Type", message.getMimeType());
            }
            e = headers.elements();
            while (e.hasMoreElements()) {
                Header h = (Header) e.nextElement();
                mailMessage.setHeader(h.getName(), h.getValue());
            }
            PrintStream out = mailMessage.getPrintStream();
            message.print(out);

            e = files.elements();
            while (e.hasMoreElements()) {
                attach((File) e.nextElement(), out);
            }
            mailMessage.sendAndClose();
        } catch (IOException ioe) {
            throw new BuildException("IO error sending mail", ioe);
        }

    }

    /**
     * Attaches a file to this email
     *
     * @param file The file to attache
     * @param out The message stream to add to
     * @throws IOException if errors occur
     */
    protected void attach(File file, PrintStream out)
         throws IOException {
        if (!file.exists() || !file.canRead()) {
            throw new BuildException("File \"" + file.getName()
                 + "\" does not exist or is not "
                 + "readable.");
        }

        if (includeFileNames) {
            out.println();

            String filename = file.getName();
            int filenamelength = filename.length();

            out.println(filename);
            for (int star = 0; star < filenamelength; star++) {
                out.print('=');
            }
            out.println();
        }

        int length;
        final int maxBuf = 1024;
        byte[] buf = new byte[maxBuf];
        FileInputStream finstr = new FileInputStream(file);

        try {
            BufferedInputStream in = new BufferedInputStream(finstr, buf.length);

            while ((length = in.read(buf)) != -1) {
                out.write(buf, 0, length);
            }
        } finally {
            finstr.close();
        }
    }
}