Examples of org.apache.mailet.Mailet

org.apache.mailet.Mailet
Draft of a Mailet inteface. The service perform all needed work on the Mail object. Whatever remains at the end of the service is considered to need futher processing and will go to the next Mailet if there is one configured or will go to the error processor if not. Setting a Mail state (setState(String)) to Mail.GHOST or cleaning its recipient list has the same meaning that s no more processing is needed. Instead of creating new messages, the mailet can put a message with new recipients at the top of the mail queue, or insert them immediately after it's execution through the API are provided by the MailetContext interface.
This interface defines methods to initialize a mailet, to service messages, and to remove a mailet from the server. These are known as life-cycle methods and are called in the following sequence:
1. The mailet is constructed, then initialized with the init method.
2. Any messages for the service method are handled.
3. The mailet is taken out of service, then destroyed with the destroy method, then garbage collected and finalized.
In addition to the life-cycle methods, this interface provides the getMailletConfig method, which the mailet can use to get any startup information, and the getMailetInfo method, which allows the mailet to return basic information about itself, such as author, version, and copyright. @version 1.0.0, 24/04/1999 @author Federico Barbieri @author Stefano Mazzocchi @author Pierpaolo Fumagalli @author Serge Knystautas


    public void testFullQualifiedUsingFakeConfig() throws ConfigurationException, MessagingException {
        m_conf.add("none.existing.package"); // has to be here so the Loader won't choke
        setUpLoader();


        Mailet mailet = m_jamesMailetLoader.getMailet("org.apache.james.transport.mailets.Null", null);
        assetIsNullMailet(mailet);
    }

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    public void testStandardMailets() throws ConfigurationException, MessagingException {
        m_conf.addStandardPackages();
        setUpLoader();


        // use standard package
        Mailet mailetNull1 = m_jamesMailetLoader.getMailet("Null", null);
        assetIsNullMailet(mailetNull1);


        // use full qualified package in parallel
        Mailet mailetNull2 = m_jamesMailetLoader.getMailet("org.apache.james.transport.mailets.Null", null);
        assetIsNullMailet(mailetNull2);


    }

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    private void checkTestMailet(String mailetName) throws MessagingException {
        // use standard package
        DefaultConfiguration configuration = new DefaultConfiguration("mailetLoaderTest");
        configuration.addChild(Util.getValuedConfiguration("testMailetKey", "testMailetValue"));


        Mailet mailet = m_jamesMailetLoader.getMailet(mailetName, configuration);
        assertTrue("MailetLoaderTestMailet mailet is expected class", mailet instanceof MailetLoaderTestMailet);
        MailetLoaderTestMailet mailetLoaderTestMailet = ((MailetLoaderTestMailet) mailet);
        assertTrue("init was called by loader", mailetLoaderTestMailet.assertInitCalled());
        MailetConfig mailetConfig = mailetLoaderTestMailet.getMailetConfig();
        assertEquals("init was called w/ right config", "testMailetValue", mailetConfig.getInitParameter("testMailetKey"));

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    }


    private String processAddFooter(String asciisource, String footer)
            throws MessagingException, IOException {
        Mailet mailet = new AddFooter();


        MockMailetConfig mci = new MockMailetConfig("Test",new MockMailContext());
        mci.setProperty("text",footer);


        mailet.init(mci);


        Mail mail = new MailImpl(new MimeMessage(Session
                .getDefaultInstance(new Properties()),
                new ByteArrayInputStream(asciisource.getBytes())));


        mailet.service(mail);


        ByteArrayOutputStream rawMessage = new ByteArrayOutputStream();
        mail.getMessage().writeTo(
                rawMessage,
                new String[] { "Bcc", "Content-Length", "Message-ID" });

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        recipientIs.init(new DummyMatcherConfig("rec1@domain.com"));
        
        Matcher all = new All();
        all.init(new DummyMatcherConfig(""));
        
        Mailet changeBody = new MyMailet();
        Mailet changeBody2 = new MyMailet();


        changeBody.init(mockMailetConfig);
        changeBody2.init(mockMailetConfig);
        
        Mailet dumpSystemErr = new DumpSystemErr();
        changeBody.init(mockMailetConfig);
        
        checkerMailet = new CheckerMailet();
        t.add(recipientIs,changeBody);
        t.add(all,changeBody);

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        recipientIs.init(new DummyMatcherConfig("rec1@domain.com"));
        
        Matcher all = new All();
        all.init(new DummyMatcherConfig(""));
        
        Mailet dumpSystemErr = new DumpSystemErr();
        
        checkerMailet = new CheckerMailet();
        t.add(recipientIs,dumpSystemErr);
        t.add(all,dumpSystemErr);
        t.add(all,checkerMailet);

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                try {
                    MailetConfigImpl configImpl = new MailetConfigImpl();
                    configImpl.setMailetName(mailetName);
                    configImpl.setConfiguration(configuration);
                    configImpl.setMailetContext(mailetContext);
                    Mailet mailet = (Mailet) Thread.currentThread().getContextClassLoader().loadClass(className).newInstance();
                    mailet.init(configImpl);
                    return mailet;
                } catch (ClassNotFoundException cnfe) {
                    //do this so we loop through all the packages
                }
            }

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     */
    public void dispose() {
        Iterator it = mailets.iterator();
        boolean debugEnabled = getLogger().isDebugEnabled();
        while (it.hasNext()) {
            Mailet mailet = (Mailet)it.next();
            if (debugEnabled) {
                getLogger().debug("Shutdown mailet " + mailet.getMailetInfo());
            }
            mailet.destroy();
        }
    }

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                public String getMatcherInfo() {
                    return TERMINATING_MATCHER_NAME;
                }
            };
        Mailet terminatingMailet = 
            new GenericMailet() {
                public void service(Mail mail) {
                    if (!(Mail.ERROR.equals(mail.getState()))) {
                        // Don't complain if we fall off the end of the
                        // error processor.  That is currently the

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                unprocessed[i + 1].add(notMail);
                //We have to set the reduce possible recipients on the old message
                mail.setRecipients(recipients);
            }
            // We have messages that need to process... time to run the mailet.
            Mailet mailet = (Mailet) mailets.get(i);
            if (getLogger().isDebugEnabled()) {
                logMessageBuffer =
                    new StringBuffer(128)
                            .append("Servicing ")
                            .append(mail.getName())
                            .append(" by ")
                            .append(mailet.getMailetInfo());
                getLogger().debug(logMessageBuffer.toString());
            }
            try {
                mailet.service(mail);
                // Make sure all the recipients are still MailAddress objects
                verifyMailAddresses(mail.getRecipients());
            } catch (MessagingException me) {
                MailetConfig mailetConfig = mailet.getMailetConfig();
                String onMailetException = ((MailetConfigImpl) mailetConfig).getInitAttribute("onMailetException");
                if (onMailetException == null) {
                    onMailetException = Mail.ERROR;
                } else {
                    onMailetException = onMailetException.trim().toLowerCase(Locale.US);
                }
                if (onMailetException.compareTo("ignore") == 0) {
                    // ignore the exception and continue
                    // this option should not be used if the mail object can be changed by the mailet
                    verifyMailAddresses(mail.getRecipients());
                } else {
                    handleException(me, mail, mailet.getMailetConfig().getMailetName(), onMailetException);
                }
            }


            // See if the state was changed by the mailet
            if (!mail.getState().equals(originalState)) {

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