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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
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 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://oss.oracle.com/licenses/CDDL+GPL-1.1
 * or LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
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package com.sun.mail.imap;

import java.util.Date;
import javax.mail.Message;
import javax.mail.search.SearchTerm;

/**
 * Find messages that are older than a given interval (in seconds).
 * Relies on the server implementing the WITHIN search extension
 * (RFC 5032).
 *
 * @since	JavaMail 1.5.1
 * @author	Bill Shannon
 */
public final class OlderTerm extends SearchTerm {

    private int interval;

    private static final long serialVersionUID = 3951078948727995682L;

    /**
     * Constructor.
     *
     * @param interval	number of seconds older
     */
    public OlderTerm(int interval) {
	this.interval = interval;
    }

    /**
     * Return the interval.
     *
     * @return	the interval
     */
    public int getInterval() {
	return interval;
    }

    /**
     * The match method.
     *
     * @param msg	the date comparator is applied to this Message's
     *			received date
     * @return		true if the comparison succeeds, otherwise false
     */
    @Override
    public boolean match(Message msg) {
	Date d;

	try {
	    d = msg.getReceivedDate();
	} catch (Exception e) {
	    return false;
	}

	if (d == null)
	    return false;

	return d.getTime() <=
		    System.currentTimeMillis() - ((long)interval * 1000);
    }

    /**
     * Equality comparison.
     */
    @Override
    public boolean equals(Object obj) {
	if (!(obj instanceof OlderTerm))
	    return false;
	return interval == ((OlderTerm)obj).interval;
    }

    /**
     * Compute a hashCode for this object.
     */
    @Override
    public int hashCode() {
	return interval;
    }
}