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 org.apache.directory.api.asn1.ber.tlv;
021    
022    
023    import org.apache.directory.api.asn1.DecoderException;
024    
025    
026    /**
027     * A MBean used to get stats on the decoding process.
028     * 
029     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
030     */
031    public interface TLVBerDecoderMBean
032    {
033        /**
034         * Set the number of bytes that can be used to encode the Value length,
035         * including the first byte. Max is 127 if the Length use a definite form,
036         * default is 1
037         * 
038         * @param length the number of byte to use
039         * @throws DecoderException Thrown if the indefinite length is 
040         * allowed or if the length's Length is above 126 bytes
041         */
042        void setMaxLengthLength( int length ) throws DecoderException;
043    
044    
045        /**
046         * Set the maximum number of bytes that should be used to encode a Tag
047         * label, including the first byte. Default is 1, no maximum
048         * 
049         * @param length The length to use
050         */
051        void setMaxTagLength( int length );
052    
053    
054        /** Allow indefinite length. */
055        void allowIndefiniteLength();
056    
057    
058        /** Disallow indefinite length. */
059        void disallowIndefiniteLength();
060    
061    
062        /**
063         * Get the actual maximum number of bytes that can be used to encode the
064         * Length
065         * 
066         * @return The maximum bytes of the Length
067         */
068        int getMaxLengthLength();
069    
070    
071        /**
072         * Get the actual maximum number of bytes that can be used to encode the Tag
073         * 
074         * @return The maximum length of the Tag
075         */
076        int getMaxTagLength();
077    
078    
079        /**
080         * Tell if indefinite length form could be used for Length
081         * 
082         * @return <code>true</code> if the Indefinite form is allowed
083         */
084        boolean isIndefiniteLengthAllowed();
085    }