001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *  http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    
020    package javax.mail.search;
021    
022    import javax.mail.Message;
023    import javax.mail.MessagingException;
024    
025    /**
026     * @version $Rev: 593593 $ $Date: 2007-11-09 12:04:20 -0500 (Fri, 09 Nov 2007) $
027     */
028    public final class HeaderTerm extends StringTerm {
029        protected String headerName;
030    
031        public HeaderTerm(String header, String pattern) {
032            super(pattern);
033            this.headerName = header;
034        }
035    
036        public String getHeaderName() {
037            return headerName;
038        }
039    
040        public boolean match(Message message) {
041            try {
042                String values[] = message.getHeader(headerName);
043                if (values != null) {
044                    for (int i = 0; i < values.length; i++) {
045                        String value = values[i];
046                        if (match(value)) {
047                            return true;
048                        }
049                    }
050                }
051                return false;
052            } catch (MessagingException e) {
053                return false;
054            }
055        }
056    
057        public boolean equals(Object other) {
058            if (other == this) return true;
059            if (other instanceof HeaderTerm == false) return false;
060            // we need to compare with more than just the header name. 
061            return headerName.equalsIgnoreCase(((HeaderTerm) other).headerName) && super.equals(other);
062        }
063    
064        public int hashCode() {
065            return headerName.toLowerCase().hashCode() + super.hashCode();
066        }
067    }