Description

Writes a log entry with a warning severity to the ColdFusion logger. The entry includes the severity, thread ID, date, time, and a text message.

Category

Event Gateway Development

Syntax

warn(String message)
warn(Throwable th)
warn(String message, Throwable th)

See also

debug, error, fatal, info, getLogger, "Logging events and using log files" in the ColdFusion Developer's Guide

Parameters

Usage

Use this method to send a warning message to the ColdFusion logging subsystem. ColdFusion writes messages with a severity of "warning" to the log file specified in the getLogger method that returned the Logger instance (or the default log file).

Example

The ColdFusion example SocketWatcherGateway class includes the following code in its constructor to load a configuration file. If it cannot load the file, it converts the exception information to a string and logs a warning that includes the gateway ID, and the exception information. It also passes the exception to the warn method

propsFilePath=configpath;
try {
    FileInputStream propsFile = new FileInputStream(propsFilePath);
    properties.load(propsFile);
    propsFile.close();
    this.loadProperties();
    }
catch (IOException e) {
    // do nothing. use default value for port.
    log.warn("SocketGateway(" + gatewayID + ") Unable to read configuration file
        " + propsFilePath + ": " + e.ToString() + ".Using default port.", e);
    }