package org.apache.james.mailetcontainer.lib.matchers;
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* 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 *
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import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import org.apache.mailet.Matcher;
import org.apache.mailet.Mail;
import javax.mail.MessagingException;
public class Not extends GenericCompositeMatcher {
/**
* This is the Not CompositeMatcher - consider what wasn't in the result set
* of each child matcher. Of course it is easier to understand if it only
* includes one matcher in the composition, the normal recommended use. @See
* CompositeMatcher interface.
*
* @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);
finalResult.removeAll(result);
}
}
return finalResult;
}
}