001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019package lucee.commons.io.res;
020
021import java.io.InputStream;
022
023import lucee.commons.io.IOUtil;
024import lucee.commons.lang.StringUtil;
025import lucee.runtime.type.util.ListUtil;
026
027public final class ContentTypeImpl implements ContentType {
028
029        public final static ContentType APPLICATION_UNKNOW=new ContentTypeImpl("application","unknow");
030        
031        private final String type;
032        private final String subtype;
033        private String charset;
034
035        /**
036         * Constructor of the class
037         * @param type
038         * @param subtype
039         * @param charset
040         */
041        public ContentTypeImpl(String type,String subtype, String charset) {
042                this.type=StringUtil.isEmpty(type,true)?null:type.trim().toLowerCase();
043                this.subtype=StringUtil.isEmpty(subtype,true)?null:subtype.trim().toLowerCase();
044                this.charset=StringUtil.isEmpty(charset,true)?null:charset.trim().toLowerCase();
045        }
046        
047        /**
048         * Constructor of the class
049         * @param type
050         * @param subtype
051         */
052        public ContentTypeImpl(String type,String subtype) {
053                this(type,subtype,null);
054        }
055
056        public ContentTypeImpl(InputStream is) {
057                String raw=IOUtil.getMimeType(is, null);
058                String[] arr = ListUtil.listToStringArray(raw, '/');
059                this.type=arr[0];
060                this.subtype=arr[1];
061        }
062
063        @Override
064        public boolean equals(Object other) {
065                if((other instanceof ContentType)) return false;
066                return toString().equals(other.toString());
067        }
068
069        @Override
070        public String toString() {
071                if(type==null)return APPLICATION_UNKNOW.toString();
072                if(this.charset==null) return type+"/"+subtype;
073                return type+"/"+subtype+" charset="+charset;
074        }
075        
076        /**
077         * @return the mime type
078         */
079        public String getMimeType() {
080                if(type==null)return APPLICATION_UNKNOW.toString();
081                return type+"/"+subtype;
082        }
083
084        /**
085         * @return the charset
086         */
087        public String getCharset() {
088                if(StringUtil.isEmpty(charset,true)) return null;
089                return charset;
090        }
091        
092}