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JavaPOS Configuration Loader Library
package jpos.util;
///////////////////////////////////////////////////////////////////////////////
//
// This software is provided "AS IS". The JavaPOS working group (including
// each of the Corporate members, contributors and individuals) MAKES NO
// REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE SOFTWARE,
// EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NON-INFRINGEMENT. The JavaPOS working group shall not be liable for
// any damages suffered as a result of using, modifying or distributing this
// software or its derivatives. Permission to use, copy, modify, and distribute
// the software and its documentation for any purpose is hereby granted.
//
// The JavaPOS Config/Loader (aka JCL) is now under the CPL license, which
// is an OSS Apache-like license. The complete license is located at:
// http://www.ibm.com/developerworks/library/os-cpl.html
//
///////////////////////////////////////////////////////////////////////////////
import java.util.*;
import jpos.config.JposEntry;
import jpos.config.JposEntryConst;
import jpos.config.JposConfigException;
import jpos.config.simple.SimpleEntry;
/**
* Simple class used to validate JposEntry objects
* @author E. Michael Maximilien ([email protected])
* @since 1.3 (Tokyo 2001 meeting)
* @version 1.3.0
*/
public class JposEntryUtility extends Object
{
//-------------------------------------------------------------------------
// Ctor(s)
//
/** Make ctor private (utility class) */
private JposEntryUtility() {}
//-------------------------------------------------------------------------
// Public class mehods
//
/**
* @return true if this entry is valid with all required properties
* @param jposEntry the entry to validate
*/
public static boolean isValidJposEntry( JposEntry jposEntry )
{
boolean valid = false;
if( jposEntry.hasPropertyWithName( JposEntry.LOGICAL_NAME_PROP_NAME ) &&
jposEntry.hasPropertyWithName( JposEntry.SI_FACTORY_CLASS_PROP_NAME ) &&
jposEntry.hasPropertyWithName( JposEntry.SERVICE_CLASS_PROP_NAME ) &&
jposEntry.hasPropertyWithName( JposEntry.DEVICE_CATEGORY_PROP_NAME ) &&
jposEntry.hasPropertyWithName( JposEntry.JPOS_VERSION_PROP_NAME ) &&
jposEntry.hasPropertyWithName( JposEntry.VENDOR_NAME_PROP_NAME ) &&
jposEntry.hasPropertyWithName( JposEntry.VENDOR_URL_PROP_NAME ) &&
jposEntry.hasPropertyWithName( JposEntry.PRODUCT_NAME_PROP_NAME ) &&
jposEntry.hasPropertyWithName( JposEntry.PRODUCT_URL_PROP_NAME ) &&
jposEntry.hasPropertyWithName( JposEntry.PRODUCT_DESCRIPTION_PROP_NAME ) )
valid = true;
return valid;
}
/**
* @return true if the property name passed is a required property
* @param name the property name
*/
public static boolean isRequiredPropName( String name )
{
boolean valid = false;
if( name.equals( JposEntry.LOGICAL_NAME_PROP_NAME ) ||
name.equals( JposEntry.SI_FACTORY_CLASS_PROP_NAME ) ||
name.equals( JposEntry.SERVICE_CLASS_PROP_NAME ) ||
name.equals( JposEntry.DEVICE_CATEGORY_PROP_NAME ) ||
name.equals( JposEntry.JPOS_VERSION_PROP_NAME ) ||
name.equals( JposEntry.VENDOR_NAME_PROP_NAME ) ||
name.equals( JposEntry.VENDOR_URL_PROP_NAME ) ||
name.equals( JposEntry.PRODUCT_NAME_PROP_NAME ) ||
name.equals( JposEntry.PRODUCT_URL_PROP_NAME ) ||
name.equals( JposEntry.PRODUCT_DESCRIPTION_PROP_NAME ) )
valid = true;
return valid;
}
/**
* @return true if the property name passed is a RS232 property
* @param name the property name
*/
public static boolean isRS232PropName( String name )
{
boolean valid = false;
if( name.equals( JposEntryConst.RS232_PORT_NAME_PROP_NAME ) ||
name.equals( JposEntryConst.RS232_BAUD_RATE_PROP_NAME ) ||
name.equals( JposEntryConst.RS232_DATA_BITS_PROP_NAME ) ||
name.equals( JposEntryConst.RS232_PARITY_PROP_NAME ) ||
name.equals( JposEntryConst.RS232_STOP_BITS_PROP_NAME ) ||
name.equals( JposEntryConst.RS232_FLOW_CONTROL_PROP_NAME ) )
valid = true;
return valid;
}
/**
* Removes all RS232 specific utilities from this JposEntry
* @param jposEntry the JposEntry to modify
*/
public static void removeAllRS232Props( JposEntry jposEntry )
{
jposEntry.removeProperty( JposEntryConst.RS232_PORT_NAME_PROP_NAME );
jposEntry.removeProperty( JposEntryConst.RS232_BAUD_RATE_PROP_NAME );
jposEntry.removeProperty( JposEntryConst.RS232_DATA_BITS_PROP_NAME );
jposEntry.removeProperty( JposEntryConst.RS232_PARITY_PROP_NAME );
jposEntry.removeProperty( JposEntryConst.RS232_STOP_BITS_PROP_NAME );
jposEntry.removeProperty( JposEntryConst.RS232_FLOW_CONTROL_PROP_NAME );
}
/** @return an Iterator of all the standard property names */
public static Iterator getStandardPropNames() { return STANDARD_PROP_NAMES_LIST.iterator(); }
/**
* @return a enumeration of all non-required property names from the jposEntry
* @param jposEntry the JposEntry
*/
public static Enumeration getNonRequiredPropNames( JposEntry jposEntry )
{
Vector vector = new Vector();
Enumeration names = jposEntry.getPropertyNames();
while( names.hasMoreElements() )
{
String name = (String)names.nextElement();
if( isRequiredPropName( name ) == false )
vector.add( name );
}
return vector.elements();
}
/**
* @return an Enumeration of property names that are required but missing
* from the JposEntry object passed
* @param jposEntry the entry to validate
*/
public static Enumeration getMissingRequiredPropNames( JposEntry jposEntry )
{
Vector vector = new Vector();
if( !jposEntry.hasPropertyWithName( JposEntry.LOGICAL_NAME_PROP_NAME ) )
vector.add( JposEntry.LOGICAL_NAME_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntry.SI_FACTORY_CLASS_PROP_NAME ) )
vector.add( JposEntry.SI_FACTORY_CLASS_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntry.SERVICE_CLASS_PROP_NAME ) )
vector.add( JposEntry.SERVICE_CLASS_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntry.DEVICE_CATEGORY_PROP_NAME ) )
vector.add( JposEntry.DEVICE_CATEGORY_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntry.JPOS_VERSION_PROP_NAME ) )
vector.add( JposEntry.JPOS_VERSION_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntry.VENDOR_NAME_PROP_NAME ) )
vector.add( JposEntry.VENDOR_NAME_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntry.VENDOR_URL_PROP_NAME ) )
vector.add( JposEntry.VENDOR_URL_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntry.PRODUCT_NAME_PROP_NAME ) )
vector.add( JposEntry.PRODUCT_NAME_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntry.PRODUCT_URL_PROP_NAME ) )
vector.add( JposEntry.PRODUCT_URL_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntry.PRODUCT_DESCRIPTION_PROP_NAME ) )
vector.add( JposEntry.PRODUCT_DESCRIPTION_PROP_NAME );
return vector.elements();
}
/**
* @return an Enumeration of all RS232 property names that are missing
* from the JposEntry object passed
* @param jposEntry the entry to validate
*/
public static Enumeration getMissingRS232PropNames( JposEntry jposEntry )
{
Vector vector = new Vector();
if( !jposEntry.hasPropertyWithName( JposEntryConst.RS232_PORT_NAME_PROP_NAME ) )
vector.add( JposEntryConst.RS232_PORT_NAME_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntryConst.RS232_BAUD_RATE_PROP_NAME ) )
vector.add( JposEntryConst.RS232_BAUD_RATE_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntryConst.RS232_DATA_BITS_PROP_NAME ) )
vector.add( JposEntryConst.RS232_DATA_BITS_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntryConst.RS232_PARITY_PROP_NAME ) )
vector.add( JposEntryConst.RS232_PARITY_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntryConst.RS232_STOP_BITS_PROP_NAME ) )
vector.add( JposEntryConst.RS232_STOP_BITS_PROP_NAME );
if( !jposEntry.hasPropertyWithName( JposEntryConst.RS232_FLOW_CONTROL_PROP_NAME ) )
vector.add( JposEntryConst.RS232_FLOW_CONTROL_PROP_NAME );
return vector.elements();
}
/**
* @return an Enumeration of all non-standard properties, that is vendor properties
* @param jposEntry the JposEntry to find the vendor property names from
*/
public static Enumeration getVendorPropNames( JposEntry jposEntry )
{
Vector vector = new Vector();
Enumeration propNames = jposEntry.getPropertyNames();
while( propNames.hasMoreElements() )
vector.add( propNames.nextElement() );
Iterator standardPropNames = getStandardPropNames();
while( standardPropNames.hasNext() )
{
String name = (String)standardPropNames.next();
vector.remove( name );
}
return vector.elements();
}
/**
* Add defaults all required properties that are missing from this JposEntry
* @param jposEntry the JposEntry object
*/
public static void addMissingRequiredProps( JposEntry jposEntry )
{
Enumeration missingPropNames = getMissingRequiredPropNames( jposEntry );
JposEntry prototype = getEntryPrototype();
while( missingPropNames.hasMoreElements() )
{
String propName = (String)missingPropNames.nextElement();
jposEntry.addProperty( propName, prototype.getPropertyValue( propName ) );
}
}
/**
* @return a prototypical instance of a JposEntry with all required properties set to
* their default values
*/
public static JposEntry getEntryPrototype()
{
if( prototypeJposEntry == null )
{
prototypeJposEntry = new SimpleEntry();
prototypeJposEntry.addProperty( JposEntry.LOGICAL_NAME_PROP_NAME, JposEntryConst.LOGICAL_NAME_DEFAULT_PROP_VALUE );
prototypeJposEntry.addProperty( JposEntry.SI_FACTORY_CLASS_PROP_NAME, JposEntryConst.SI_FACTORY_CLASS_DEFAULT_PROP_VALUE );
prototypeJposEntry.addProperty( JposEntry.SERVICE_CLASS_PROP_NAME, JposEntryConst.SERVICE_CLASS_DEFAULT_PROP_VALUE );
prototypeJposEntry.addProperty( JposEntry.DEVICE_CATEGORY_PROP_NAME, JposEntryConst.DEVICE_CATEGORY_DEFAULT_PROP_VALUE );
prototypeJposEntry.addProperty( JposEntry.JPOS_VERSION_PROP_NAME, JposEntryConst.JPOS_VERSION_DEFAULT_PROP_VALUE );
prototypeJposEntry.addProperty( JposEntry.VENDOR_NAME_PROP_NAME, JposEntryConst.VENDOR_NAME_DEFAULT_PROP_VALUE );
prototypeJposEntry.addProperty( JposEntry.VENDOR_URL_PROP_NAME, JposEntryConst.VENDOR_URL_DEFAULT_PROP_VALUE );
prototypeJposEntry.addProperty( JposEntry.PRODUCT_NAME_PROP_NAME, JposEntryConst.PRODUCT_NAME_DEFAULT_PROP_VALUE );
prototypeJposEntry.addProperty( JposEntry.PRODUCT_URL_PROP_NAME, JposEntryConst.PRODUCT_URL_DEFAULT_PROP_VALUE );
prototypeJposEntry.addProperty( JposEntry.PRODUCT_DESCRIPTION_PROP_NAME, JposEntryConst.PRODUCT_DESCRIPTION_DEFAULT_PROP_VALUE );
}
return ( (SimpleEntry)prototypeJposEntry ).copy();
}
/**
* @return the short name of the Class object passed, that is return the name of the class
* w/o the package name
* @param classObject the Class object
* @since 2.0.0
*/
public static String shortClassName( Class classObject )
{ return classObject.toString().substring( classObject.toString().lastIndexOf( "." ) + 1 ); }
/**
* @return true if the Object passed is a valid JposEntry property value of the type passed
* @param propValue the property value object
* @param propType the property type object
* @see jpos.config.JposEntryConst#PROP_TYPES
* @since 2.0.0
*/
public static boolean validatePropValue( Object propValue, Class propType )
{
if( propValue == null || propType == null ) return false;
if( !isValidPropType( propType ) ) return false;
return propType.isInstance( propValue );
}
/**
* @return true if the propType object passed is a valid JposEntry property type
* that is one of the JposEntryConst.PROP_TYPES
* @see jpos.config.JposEntryConst#PROP_TYPES
* @since 2.0.0
*/
public static boolean isValidPropType( Class propType )
{
if( propType == null ) return false;
for( int i = 0; i < JposEntryConst.PROP_TYPES.length; ++i )
if( propType.equals( JposEntryConst.PROP_TYPES[ i ] ) )
return true;
return false;
}
/**
* @return the default value object for the propType class passed
* @param propType the property type Class
* @exception jpos.config.JposConfigException if this property type is not
* valid
*/
public static Object getDefaultValueForType( Class propType ) throws JposConfigException
{
if( isValidPropType( propType ) == false )
throw new JposConfigException( "Invalid property type: " + propType );
Object propValue = "";
try
{
if( propType.equals( String.class ) )
propValue = "";
else
if( propType.equals( Boolean.class ) )
propValue = new Boolean( false );
else
if( propType.equals( Character.class ) )
propValue = new Character( 'a' );
else
if( propType.equals( Double.class ) )
propValue = new Double( 0 );
else
if( propType.equals( Float.class ) )
propValue = new Float( 0 );
else
if( propType.equals( Byte.class ) )
propValue = new Byte( (byte)0 );
else
if( propType.equals( Integer.class ) )
propValue = new Integer( 0 );
else
if( propType.equals( Long.class ) )
propValue = new Long( 0 );
else
if( propType.equals( Short.class ) )
propValue = new Short( (short)0 );
}
catch( Exception e )
{ throw new JposConfigException( "Invalid property type" ); }
return propValue;
}
/**
* @return the property value Object parsed from the String passed assuming that its
* of a valid property type and also that the string can be converted
* @param stringValue the String value to parse
* @param propType the property value type
* @see jpos.config.JposEntryConst#PROP_TYPES
* @exception jpos.config.JposConfigException if this property value cannot be created
* from the arguments passed
* @since 2.0.0
*/
public static Object parsePropValue( String stringValue, Class propType ) throws JposConfigException
{
if( isValidPropType( propType ) == false )
throw new JposConfigException( "Invalid property type: " + propType );
Object propValue = "";
try
{
if( propType.equals( String.class ) )
propValue = stringValue;
else
if( propType.equals( Boolean.class ) )
propValue = Boolean.valueOf( stringValue );
else
if( propType.equals( Character.class ) )
propValue = new Character( stringValue.charAt( 0 ) );
else
if( propType.equals( Double.class ) )
propValue = Double.valueOf( stringValue );
else
if( propType.equals( Float.class ) )
propValue = Float.valueOf( stringValue );
else
if( propType.equals( Byte.class ) )
propValue = Byte.decode( stringValue );
else
if( propType.equals( Integer.class ) )
propValue = Integer.decode( stringValue );
else
if( propType.equals( Long.class ) )
propValue = Long.decode( stringValue );
else
if( propType.equals( Short.class ) )
propValue = Short.decode( stringValue );
}
catch( Exception e )
{ throw new JposConfigException( "Could not create property value of type: " +
propType + " from string: " + stringValue ); }
return propValue;
}
/**
* @return the Class type for the property from the typeString passed. The type
* string can either be the short name of the type or the fully-qualified class name
* @param typeString the type string name
* @throws jpos.config.JposConfigException if the typeString is not a valid property type string
*/
public static Class propTypeFromString( String typeString ) throws JposConfigException
{
if( typeString == null ) throw new JposConfigException( "typeString cannot be null" );
String className = ( typeString.startsWith( "java.lang." ) ? typeString : "java.lang." + typeString );
try
{
Class typeClass = Class.forName( className );
if( isValidPropType( typeClass ) == false )
throw new JposConfigException( "Invalid property type: " + typeString );
return typeClass;
}
catch( ClassNotFoundException cnfe ) { throw new JposConfigException( "Invalid typeString", cnfe ); }
}
//-------------------------------------------------------------------------
// Class variables
//
private static JposEntry prototypeJposEntry = null;
//-------------------------------------------------------------------------
// Class constants
//
private static final List STANDARD_PROP_NAMES_LIST = new ArrayList();
//-------------------------------------------------------------------------
// Static initializer
//
/** Initializes the standard set of properties */
static
{
for( int i = 0; i < JposEntryConst.REQUIRED_PROPS.length; ++i )
STANDARD_PROP_NAMES_LIST.add( JposEntryConst.REQUIRED_PROPS[ i ] );
STANDARD_PROP_NAMES_LIST.add( JposEntryConst.DEVICE_BUS_PROP_NAME );
for( int i = 0; i < JposEntryConst.RS232_PROPS.length; ++i )
STANDARD_PROP_NAMES_LIST.add( JposEntryConst.RS232_PROPS[ i ] );
}
}
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