Examples of org.apache.mailet.Matcher

org.apache.mailet.Matcher
This interface define the behaviour of the message "routing" inside the mailet container. The match(Mail) method returns a Collection of recipients that meet this class's criteria.
An important feature of the mailet container is the ability to fork processing of messages. When a message first arrives at the server, it might have multiple recipients specified. As a message is passed to a matcher, the matcher might only "match" one of the listed recipients. It would then return only the matching recipient in the Collection. The mailet container should then duplicate the message splitting the recipient list across the two messages as per what the matcher returned.
[THIS PARAGRAPH NOT YET IMPLEMENTED] The matcher can extend this forking to further separation by returning a Collection of Collection objects. This allows a matcher to fork multiple processes if there are multiple recipients that require separate processing. For example, we could write a ListservMatcher that handles multiple listservs. When someone cross-posts across multiple listservs that this matcher handles, it could put each listserv address (recipient) that it handles in a separate Collection object. By returning each of these Collections within a container Collection object, it could indicate to the mailet container how many forks to spawn.
This interface defines methods to initialize a matcher, to match messages, and to remove a matcher from the server. These are known as life-cycle methods and are called in the following sequence:
1. The matcher is constructed, then initialized with the init method.
2. Any calls from clients to the match method are handled.
3. The matcher 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 getMatcherConfig method, which the matcher can use to get any startup information, and the getMatcherInfo method, which allows the matcher to return basic information about itself, such as author, version, and copyright. @version 1.0.0, 24/04/1999 @author Federico Barbieri @author Serge Knystautas

     * @return Collectiom of Recipient from the Negated composition of the child
     *         Matcher(s).
     */
    public Collection match(Mail mail) throws MessagingException {
        Collection finalResult = mail.getRecipients();
        Matcher matcher = null;
        for (Iterator matcherIter = iterator(); matcherIter.hasNext();) {
            matcher = (Matcher) (matcherIter.next());
            // log("Matching with " +
            // matcher.getMatcherConfig().getMatcherName());
            Collection result = matcher.match(mail);
            if (result == finalResult) {
                // Not is an empty list
                finalResult = null;
            } else if (result != null) {
                finalResult = new ArrayList(finalResult);

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     * @return Collection of Recipients from the Xor composition of the child
     *         matchers.
     */
    public Collection match(Mail mail) throws MessagingException {
        Collection finalResult = null;
        Matcher matcher = null;
        boolean first = true;
        for (Iterator matcherIter = iterator(); matcherIter.hasNext();) {
            matcher = (Matcher) (matcherIter.next());
            Collection result = matcher.match(mail);
            if (result == null) {
                result = new ArrayList(0);
            }
            // log("Matching with " +
            // matcher.getMatcherConfig().getMatcherName() +

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     * @return Collection of Recipient from the And composition results of the
     *         child Matchers.
     */
    public Collection match(Mail mail) throws MessagingException {
        Collection finalResult = null;
        Matcher matcher = null;
        boolean first = true;
        for (Iterator matcherIter = iterator(); matcherIter.hasNext();) {
            matcher = (Matcher) (matcherIter.next());
            Collection result = matcher.match(mail);


            if (result == null) {
                // short-circuit
                // log("Matching with " +
                // matcher.getMatcherConfig().getMatcherName() +

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                matchName = matchName.substring(0, i);
            }
            for (final String packageName: packages) {
                final String className = packageName + matchName;
                try {
                    final Matcher matcher = (Matcher) factory.newInstance(Thread.currentThread().getContextClassLoader().loadClass(className));
                    
                    final MatcherConfigImpl configImpl = new MatcherConfigImpl();
                    configImpl.setMatcherName(matchName);
                    configImpl.setCondition(condition);
                    configImpl.setMailetContext(mailetContext);


                    matcher.init(configImpl);
                    
                    return matcher;
                } catch (ClassNotFoundException cnfe) {
                    //do this so we loop through all the packages
                }

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    private void setupMatcher() throws MessagingException {
        FakeMailContext context = new FakeMailContext();
        matcher = new Or();
        FakeMatcherConfig mci = new FakeMatcherConfig("Or",context);
        matcher.init(mci);
        Matcher child = null;
        FakeMatcherConfig sub = null;
        child = new RecipientIs();
        sub = new FakeMatcherConfig("RecipientIsRegex=test@james.apache.org",context);
        child.init(sub);
        matcher.add(child);
        child = new RecipientIs();
        sub = new FakeMatcherConfig("RecipientIsRegex=test2@james.apache.org",context);
        child.init(sub);
        matcher.add(child);
    }

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        matcher.init(mci);
    }
    
    private void setupChild(String match) throws MessagingException
    {
        Matcher child = null;
        if (match.equals("All"))
        {
            child = new All();
        }
        else
        {
            child = new RecipientIs();
        }
        FakeMatcherConfig sub = new FakeMatcherConfig(match,context);
        child.init(sub);
        matcher.add(child);
        
    }

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        matcher.init(mci);
    }
    
    private void setupChild(String match) throws MessagingException
    {
        Matcher child = null;
        if (match.equals("All"))
        {
            child = new All();
        }
        else
        {
            child = new RecipientIs();
        }
        FakeMatcherConfig sub = new FakeMatcherConfig(match,context);
        child.init(sub);
        matcher.add(child);
        
    }

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        }
    }
    
    public void testCopyOnWrite() throws IOException, MessagingException {
        t.setSpool(new MockSpoolRepository());
        Matcher recipientIs = new RecipientIs();
        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);

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                assertEquals("MYSTATE",mc.getState());
                super.store(mc);
            }
        });
        
        Matcher recipientIs = new RecipientIs();
        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);

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        }
    }
    
    public void testCopyOnWrite() throws IOException, MessagingException {
        t.setSpool(new MockSpoolRepository());
        Matcher recipientIs = new RecipientIs();
        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);

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