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Set size threshold of log file

This is an example of how to set size threshold of a log file. Setting size threshold of a log file implies that you should: Create a Logger instance for a class, with the getLogger(String name) API method. Create a FileHandler with a specific file size. It can be configured to write to one or more files, to a specific ...

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Use of logger console handler

In this example we shall show you how to use a logger’s ConsoleHandler. The ConsoleHandler is a handler that takes logs from a Logger and publishes them to System.err. To use the ConsoleHandler one should perform the following steps: Create a Logger instance, with the getLogger(String name) API method of the Logger. Create a ConsoleHandler for System.err. Add the handler ...

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Set logger log level

With this example we are going to demonstrate how to set a Logger‘s log level. The Level defines a set of standard logging levels that can be used to control logging output. The standard levels are provided at the Level API. In short, to set logger log level you should: Create a new Logger instance. Set the log level to ...

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Create a sequence of log files

This is an example of how to create a sequence of log files. Creating a sequence of log files implies that you should: Create a new instance of a Logger. Create an instance of FileHandler with a specific number of logging files sequences, a specific size for each file and append set to true. In the example 5 files will ...

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Create custom Formatter for Logger handler

In this example we shall show you how to create custom Formatter for a Logger‘s Handler. The Handler usually uses a Formatter associated with it to format LogRecords. The Formatter takes a LogRecord and converts it to a string. LogRecord objects are used to pass logging requests between the logging framework and individual log Handlers. To create a custom Formatter ...

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Set Formatter for Logger handler

With this example we are going to demonstrate how to set a Formatter for a Logger Handler. The Formatter is used by the Handler to format LogRecords. In short, to set a Formatter for a Logger’s handler you should: Create a new Logger instance with getLogger(String name) API method of Logger. Create a new FileHandler to write to a specific ...

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Set filter on Logger handler

This is an example of how to set a filter on a Logger’s Handler. The Filter is used to provide control over what is logged, beyond the control that the levels provide. Each Logger and each Handler can have a filter associated with it. The Logger or Handler will call the isLoggable(LogRecord record) method to check if a given LogRecord ...

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Log method call

In this example we shall show you how to log a method call. We have implemented the LogMethodCall Class, with a simple method to log its messages. The basic steps of the example are described below: The call(String arg1, Object arg2) method of the class takes a String argument and an Object argument and returns a boolean value. The method ...

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Write Log entries to log file

With this example we are going to demonstrate how to write Log entries to a log file. In short, to write Log entries to a log file you should: Create a new FileHandler to write to a specific file. Create a new Logger instance with getLogger(String name) API method of Logger. Add the handler to the Logger, with addHandler(Handler handler) ...

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