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* [2002] - [2007] Adobe Systems Incorporated
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*/
package flex.messaging;
import java.util.Locale;
import flex.messaging.util.PropertyStringResourceLoader;
import flex.messaging.util.ResourceLoader;
/**
* The LocalizedException class is the base class for server
* exceptions that use localized error message and details strings. This class overloads
* setMessage and setDetails to support passing an error
* number and an optional message variant that is used to look up a localized error
* message or details string using a ResourceLoader. These methods also
* set the number property of the exception instance.
*
* The various overloads optionally support specifying a target locale as well as
* arguments to substitute into the localized string if it is parameterized.
*
* Localized error message and details strings are stored in the flex.messaging.errors
* resource bundle. Entries must have the following format.
*
* - Error message: {number}[-{variant}]={message}
* - Error details: {number}[-{variant}]-details={details}
*
*
*
* @see ResourceLoader
*/
public class LocalizedException extends RuntimeException
{
/** @exclude - transient, the resourceLoader for localized strings doesn't need to serialize. */
protected transient ResourceLoader resourceLoader;
/** @exclude */
protected int number;
/** @exclude */
protected String message;
/** @exclude */
protected String details;
/** @exclude */
protected Throwable rootCause;
/**
* This number was generated using the 'serialver' command line tool.
* This number should remain consistent with the version used by
* ColdFusion to communicate with the message broker over RMI.
*/
private static final long serialVersionUID = 7980539484335065853L;
/**
* Create a LocalizedException with the default ResourceLoader.
*/
public LocalizedException()
{
super();
}
/**
* Create a LocalizedException that will use the specified
* ResourceLoader.
* @param resourceLoader
*/
public LocalizedException(ResourceLoader resourceLoader)
{
this.resourceLoader = resourceLoader;
}
/**
* Returns the exception details.
*
* @return The exception details.
*/
public String getDetails()
{
return details;
}
/**
* Sets the exception details.
*
* @param details The exception details.
*/
public void setDetails(String details)
{
this.details = details;
}
/**
* Sets the message property to a localized string based on error number.
*
* @param number The error number for this exception instance.
*/
public void setMessage(int number)
{
setMessage(number, null, null, null);
}
/**
* Sets the message property to a localized string based on error number and target locale.
*
* @param number The error number for this exception instance.
* @param locale The target locale for error message lookup.
*/
public void setMessage(int number, Locale locale)
{
setMessage(number, null, locale, null);
}
/**
* Sets the message property to a localized string based on error number.
* The passed arguments are substituted into the parameterized error message string.
*
* @param number The error number for this exception instance.
* @param arguments The arguments to substitute into the error message.
*/
public void setMessage(int number, Object[] arguments)
{
setMessage(number, null, null, arguments);
}
/**
* Sets the message property to a localized string based on error number and variant.
*
* @param number The error number for this exception instance.
* @param variant The variant of the error message for this instance.
*/
public void setMessage(int number, String variant)
{
setMessage(number, variant, null, null);
}
/**
* Sets the message property to a localized string based on error number, variant
* and target locale.
*
* @param number The error number for this exception instance.
* @param variant The variant of the error message for this instance.
* @param locale The target locale for error message lookup.
*/
public void setMessage(int number, String variant, Locale locale)
{
setMessage(number, variant, locale, null);
}
/**
* Sets the message property to a localized string based on error number and variant.
* The passed arguments are substituted into the parameterized error message string.
*
* @param number The error number for this exception instance.
* @param variant The varient of the error message for this instance.
* @param arguments The arguments to substitute into the error message.
*/
public void setMessage(int number, String variant, Object[] arguments)
{
setMessage(number, variant, null, arguments);
}
/**
* Sets the message property to a localized string based on error number, variant and
* target locale. The passed arguments are substituted into the parameterized error
* message string.
*
* @param number The error number for this exception instance.
* @param variant The variant of the error message for this instance.
* @param locale The target locale for error message lookup.
* @param arguments The arguments to substitute into the error message.
*/
public void setMessage(int number, String variant, Locale locale, Object[] arguments)
{
setNumber(number);
ResourceLoader resources = getResourceLoader();
setMessage(resources.getString(generateFullKey(number, variant), locale, arguments));
}
/**
* Returns the exception message.
*
* @return The exception message.
*/
public String getMessage()
{
return message;
}
/**
* Sets the exception message.
*
* @param message The exception message.
*/
public void setMessage(String message)
{
this.message = message;
}
/**
* Sets the localized exception number.
*
* @param number The localized exception number.
*/
public void setNumber(int number)
{
this.number = number;
}
/**
* Returns the localized exception number.
*
* @return The localized exception number.
*/
public int getNumber()
{
return number;
}
/**
* Sets the details property to a localized string based on error number.
*
* @param number The error number to lookup details for.
*/
public void setDetails(int number)
{
setDetails(number, null, null, null);
}
/**
* Sets the details property to a localized string based on error number and variant.
*
* @param number The error number to lookup details for.
* @param variant The variant of the details string to lookup.
*/
public void setDetails(int number, String variant)
{
setDetails(number, variant, null, null);
}
/**
* Sets the details property to a localized string based on error number, variant
* and target locale.
*
* @param number The error number to lookup details for.
* @param variant The variant of the details string to lookup.
* @param locale The target locale for the lookup.
*/
public void setDetails(int number, String variant, Locale locale)
{
setDetails(number, variant, locale, null);
}
/**
* Sets the details property to a localized string based on error number and variant.
* The passed arguments are substituted into the parameterized error details string.
*
* @param number The error number to lookup details for.
* @param variant The variant of the details string to lookup.
* @param arguments The arguments to substitute into the details string.
*/
public void setDetails(int number, String variant, Object[] arguments)
{
setDetails(number, variant, null, arguments);
}
/**
* Sets the details property to a localized string based on error number, variant,
* and target locale. The passed arguments are substituted into the parameterized error
* details string.
*
* @param number The error number to lookup a localized details string for.
* @param variant The variant of the details string to lookup.
* @param locale The target locale for the lookup.
* @param arguments The arguments to substitute into the details string.
*/
public void setDetails(int number, String variant, Locale locale, Object[] arguments)
{
setNumber(number);
ResourceLoader resources = getResourceLoader();
setDetails(resources.getString(generateDetailsKey(number, variant), locale, arguments));
}
/**
* Returns the root cause for this exception.
*
* @return The root cause for this exception.
*/
public Throwable getRootCause()
{
return rootCause;
}
/**
* Sets the root cause for this exception.
*
* @param cause The root cause for this exception.
*/
public void setRootCause(Throwable cause)
{
rootCause = cause;
}
/**
* Returns the ResourceLoader used to load localized strings.
*
* @return The ResourceLoader used to load localized strings.
*/
protected ResourceLoader getResourceLoader()
{
if (resourceLoader == null)
resourceLoader = new PropertyStringResourceLoader();
return resourceLoader;
}
/**
* Generates the full key to lookup a localized error message based on an error number
* and an optional variant followed by a "-details" suffix. If the variant is null, the
* lookup key is the error number.
*
* @param number The error number.
* @param variant The variant of the error message.
* @return The full lookup key for a localized error message.
*/
private String generateFullKey(int number, String variant)
{
return (variant != null) ? (number + "-" + variant) : String.valueOf(number);
}
/**
* Generates the full key to lookup a localized details string based on an error number
* and an optional variant followed by a "-details" suffix. If the variant is null, the
* lookup key is the error number followed by a "-details" suffix.
*
* @param number The error number.
* @param variant The variant of the details message.
* @return The full lookup key for a localized details message.
*/
private String generateDetailsKey(int number, String variant)
{
return (generateFullKey(number, variant) + "-details");
}
/**
* Returns a string represenation of the exception.
*
* @return A string representation of the exception.
*/
public String toString()
{
String result = super.toString();
if (details != null)
{
StringBuffer buffer = new StringBuffer(result);
if (!result.endsWith("."))
{
buffer.append(".");
}
buffer.append(' ').append(details);
result = buffer.toString();
}
return result;
}
}
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