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: 920714 $ $Date: 2010-03-09 01:55:49 -0500 (Tue, 09 Mar 2010) $
027     */
028    public final class HeaderTerm extends StringTerm {
029            
030            private static final long serialVersionUID = 8342514650333389122L;
031            
032        protected String headerName;
033    
034        public HeaderTerm(String header, String pattern) {
035            super(pattern);
036            this.headerName = header;
037        }
038    
039        public String getHeaderName() {
040            return headerName;
041        }
042    
043        public boolean match(Message message) {
044            try {
045                String values[] = message.getHeader(headerName);
046                if (values != null) {
047                    for (int i = 0; i < values.length; i++) {
048                        String value = values[i];
049                        if (match(value)) {
050                            return true;
051                        }
052                    }
053                }
054                return false;
055            } catch (MessagingException e) {
056                return false;
057            }
058        }
059    
060        public boolean equals(Object other) {
061            if (other == this) return true;
062            if (other instanceof HeaderTerm == false) return false;
063            // we need to compare with more than just the header name. 
064            return headerName.equalsIgnoreCase(((HeaderTerm) other).headerName) && super.equals(other);
065        }
066    
067        public int hashCode() {
068            return headerName.toLowerCase().hashCode() + super.hashCode();
069        }
070    }