org.apache.directory.shared.ldap.schema.syntaxCheckers
Class JpegSyntaxChecker

java.lang.Object
  extended by org.apache.directory.shared.ldap.schema.AbstractSchemaObject
      extended by org.apache.directory.shared.ldap.schema.LoadableSchemaObject
          extended by org.apache.directory.shared.ldap.schema.SyntaxChecker
              extended by org.apache.directory.shared.ldap.schema.syntaxCheckers.JpegSyntaxChecker
All Implemented Interfaces:
java.io.Serializable, SchemaObject

public class JpegSyntaxChecker
extends SyntaxChecker

A SyntaxChecker which verifies that a value is a Jpeg according to RFC 4517. The JFIF (Jpeg File Interchange Format) specify that a jpeg image starts with the following bytes : 0xFF 0xD8 (SOI, Start Of Image) 0xFF 0xE0 (App0) 0xNN 0xNN (Header length) "JFIF\0" (JFIF string with an ending \0) some other bytes which are related to the image. We will check for those 11 bytes, except the length.

Version:
$Rev: 437007 $
Author:
Apache Directory Project
See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.apache.directory.shared.ldap.schema.AbstractSchemaObject
description, extensions, isEnabled, isObsolete, isReadOnly, locked, names, objectType, oid, schemaName, specification
 
Constructor Summary
JpegSyntaxChecker()
          Creates a new instance of JpegSyntaxChecker.
 
Method Summary
 boolean isValidSyntax(java.lang.Object value)
          Determines if the attribute's value conforms to the attribute syntax.
 
Methods inherited from class org.apache.directory.shared.ldap.schema.SyntaxChecker
assertSyntax, equals, toString
 
Methods inherited from class org.apache.directory.shared.ldap.schema.LoadableSchemaObject
copy, getBytecode, getFqcn, isValid, registerOid, setBytecode, setFqcn
 
Methods inherited from class org.apache.directory.shared.ldap.schema.AbstractSchemaObject
addExtension, addName, addToRegistries, clear, compareOid, copy, getDescription, getExtensions, getName, getNames, getObjectType, getOid, getSchemaName, getSpecification, hashCode, isDisabled, isEnabled, isObsolete, isReadOnly, lock, removeFromRegistries, setDescription, setEnabled, setExtensions, setNames, setNames, setObsolete, setOid, setReadOnly, setRegistries, setSchemaName, setSpecification
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

JpegSyntaxChecker

public JpegSyntaxChecker()
Creates a new instance of JpegSyntaxChecker.

Method Detail

isValidSyntax

public boolean isValidSyntax(java.lang.Object value)
Determines if the attribute's value conforms to the attribute syntax.

Specified by:
isValidSyntax in class SyntaxChecker
Parameters:
value - the value of some attribute with the syntax
Returns:
true if the value is in the valid syntax, false otherwise


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