Class MessageUtil
- java.lang.Object
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- org.apache.derby.shared.common.i18n.MessageUtil
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public class MessageUtil extends java.lang.Object
Class comments here
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Field Summary
Fields Modifier and Type Field Description private java.lang.String
resourceBundleName
The name of the resource bundle we are using to load messagesstatic java.util.Locale
US
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Constructor Summary
Constructors Constructor Description MessageUtil(java.lang.String resourceBundleName)
Create an instance of MessageUtil with a specific resource bundle.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static java.lang.String
composeDefaultMessage(java.lang.String message, java.lang.Object[] arguments)
Compose a default message so that the user at least gets *something* useful rather than just a MissingResourceException, which is particularly unhelpfulprivate static int
countParams(java.lang.String message)
Count the number of substituation parameters in the messagestatic java.lang.String
formatMessage(java.util.ResourceBundle bundle, java.lang.String messageId, java.lang.Object[] arguments, boolean composeDefault)
Format a message given a resource bundle and a message id.java.lang.String
getCompleteMessage(java.lang.String messageID, java.lang.Object[] args)
Instance method to get the complete message, using the provided resource bundle name as specified when this instance was constructed If for some reason the message could not be found, we return a default message using the message argumentsstatic java.lang.String
getCompleteMessage(java.lang.String messageId, java.lang.String resourceBundleName, java.lang.Object[] arguments)
This is a wrapper for the getCompleteMessage workhorse routine using some obvious defaults, particularly for non-engine subsystems that only ever use the default locale.static java.lang.String
getCompleteMessage(java.util.Locale locale, java.lang.String resourceBundleName, java.lang.String messageId, java.lang.Object[] arguments, boolean composeDefault)
Generic routine to get a message with any number of arguments.java.lang.String
getTextMessage(java.lang.String messageID, java.lang.Object... args)
Get a message with default locale.
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Constructor Detail
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MessageUtil
public MessageUtil(java.lang.String resourceBundleName)
Create an instance of MessageUtil with a specific resource bundle. This assumes the default locale, which is just fine for users of this class other than the engine (which potentially has a different locale and a different resource bundle for each invocation of getCompleteMessage().- Parameters:
resourceBundleName
- The base name of the resource bundle to use.
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Method Detail
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getTextMessage
public java.lang.String getTextMessage(java.lang.String messageID, java.lang.Object... args)
Get a message with default locale.
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getCompleteMessage
public java.lang.String getCompleteMessage(java.lang.String messageID, java.lang.Object[] args)
Instance method to get the complete message, using the provided resource bundle name as specified when this instance was constructed If for some reason the message could not be found, we return a default message using the message arguments
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getCompleteMessage
public static java.lang.String getCompleteMessage(java.util.Locale locale, java.lang.String resourceBundleName, java.lang.String messageId, java.lang.Object[] arguments, boolean composeDefault) throws java.util.MissingResourceException
Generic routine to get a message with any number of arguments. Looks in the provided resource bundle for the message, using the specified locale and then the US locale.- Parameters:
locale
- The locale to use when looking for the message. If the message is not found using this locale, we attempt to find it using the US locale (our default).resourceBundleName
- The base name for the resource bundle to use.messageId
- The message identifier for this messagearguments
- The arguments for the messagecomposeDefault
- If this is true, this method will compose a default message if the message could not be found in the provided resource bundles. If it is false, this method will throw a MissingResourceException if the message could not be found.- Returns:
- The message for the given message id, with arguments substituted.
- Throws:
java.util.MissingResourceException
- If the message could not be found and thecomposeDefault
parameter was set to false.
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getCompleteMessage
public static java.lang.String getCompleteMessage(java.lang.String messageId, java.lang.String resourceBundleName, java.lang.Object[] arguments) throws java.util.MissingResourceException
This is a wrapper for the getCompleteMessage workhorse routine using some obvious defaults, particularly for non-engine subsystems that only ever use the default locale. Get a message using the default locale. If the message is not found with the default locale, use the US locale. Do this both for the common bundle and the parent bundle. If the message is not found in common or in the parent resource bundle, return a default message composed of the message arguments.- Parameters:
messageId
- The id to use to look up the messageresourceBundleName
- The base name of the resource bundle to use.arguments
- The arguments to the message- Throws:
java.util.MissingResourceException
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formatMessage
public static java.lang.String formatMessage(java.util.ResourceBundle bundle, java.lang.String messageId, java.lang.Object[] arguments, boolean composeDefault)
Format a message given a resource bundle and a message id.The arguments to the messages are passed via an object array. The objects in the array WILL be changed by this class. The caller should NOT get the object back from this array.
- Parameters:
bundle
- The resource bundle to use to look for the messagemessageId
- The message id to use for the messagearguments
- The arguments for the messagecomposeDefault
- Indicates whether a default message should be composed if the message can't be found in the resource bundle.If composeDefault is false, this method will throw a MissingResourceException if the message could not be found.
If composeDefault is true, then if the message id is not found in the given bundle, this method composes and returns as helpful a message as possible in the format "UNKNOWN : [arg1], [arg2], ..."
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countParams
private static int countParams(java.lang.String message)
Count the number of substituation parameters in the message
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composeDefaultMessage
public static java.lang.String composeDefaultMessage(java.lang.String message, java.lang.Object[] arguments)
Compose a default message so that the user at least gets *something* useful rather than just a MissingResourceException, which is particularly unhelpful- Parameters:
message
- The message to start with, which often is nullarguments
- The arguments to the message.
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