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/*
* HeaderTerm.java
* Copyright (C) 2002 The Free Software Foundation
*
* This file is part of GNU JavaMail, a library.
*
* GNU JavaMail is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GNU JavaMail is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* As a special exception, if you link this library with other files to
* produce an executable, this library does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* This exception does not however invalidate any other reasons why the
* executable file might be covered by the GNU General Public License.
*/
package javax.mail.search;
import javax.mail.Message;
/**
* This class implements comparisons for Message headers.
* The comparison is case-insensitive.
*
* @author <a href="mailto:dog@gnu.org">Chris Burdess</a>
* @version 1.3
*/
public final class HeaderTerm
extends StringTerm
{
/**
* The name of the header.
*/
protected String headerName;
/**
* Constructor.
* @param headerName The name of the header
* @param pattern The pattern to search for
*/
public HeaderTerm(String headerName, String pattern)
{
super(pattern);
this.headerName = headerName;
}
/**
* Return the name of the header to compare with.
*/
public String getHeaderName()
{
return headerName;
}
/**
* The header match method.
* @param msg The match is applied to this Message's header
* @return true if the match succeeds, otherwise false
*/
public boolean match(Message msg)
{
try
{
String[] headers = msg.getHeader(headerName);
if (headers!=null)
{
for (int i = 0; i<headers.length; i++)
{
if (super.match(headers[i]))
return true;
}
}
}
catch (Exception e)
{
}
return false;
}
/**
* Equality comparison.
*/
public boolean equals(Object other)
{
if (other instanceof HeaderTerm)
{
HeaderTerm ht = (HeaderTerm)other;
return ht.headerName.equalsIgnoreCase(headerName) &&
super.equals(ht);
}
return false;
}
/**
* Compute a hashCode for this object.
*/
public int hashCode()
{
return headerName.toLowerCase().hashCode() + super.hashCode();
}
}
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