javax.mail.search.HeaderTerm Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2013 Oracle and/or its affiliates. All rights reserved.
*
* 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://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package javax.mail.search;
import java.util.Locale;
import javax.mail.Message;
/**
* This class implements comparisons for Message headers.
* The comparison is case-insensitive.
*
* @author Bill Shannon
* @author John Mani
*/
public final class HeaderTerm extends StringTerm {
/**
* The name of the header.
*
* @serial
*/
private String headerName;
private static final long serialVersionUID = 8342514650333389122L;
/**
* 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.
*
* @return the name of the header
*/
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) {
String[] headers;
try {
headers = msg.getHeader(headerName);
} catch (Exception e) {
return false;
}
if (headers == null)
return false;
for (int i=0; i < headers.length; i++)
if (super.match(headers[i]))
return true;
return false;
}
/**
* Equality comparison.
*/
public boolean equals(Object obj) {
if (!(obj instanceof HeaderTerm))
return false;
HeaderTerm ht = (HeaderTerm)obj;
// XXX - depends on header comparisons being case independent
return ht.headerName.equalsIgnoreCase(headerName) && super.equals(ht);
}
/**
* Compute a hashCode for this object.
*/
public int hashCode() {
// XXX - depends on header comparisons being case independent
return headerName.toLowerCase(Locale.ENGLISH).hashCode() +
super.hashCode();
}
}