42 lines
1.1 KiB
Java
42 lines
1.1 KiB
Java
//: logging/CustomHandler.java
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// How to write custom handler
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import java.util.logging.*;
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import java.util.*;
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public class CustomHandler {
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private static Logger logger =
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Logger.getLogger("CustomHandler");
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private static List<String> trace =
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new ArrayList<>();
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public static void main(String[] args) {
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logger.addHandler(new Handler() {
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@Override
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public void publish(LogRecord logRecord) {
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trace.add(logRecord.getLevel() + ":");
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trace.add(logRecord.getSourceClassName()
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+ ":");
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trace.add(
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logRecord.getSourceMethodName() +":");
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trace.add("<" + logRecord.getMessage()
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+ ">");
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trace.add("\n");
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}
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@Override
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public void flush() {}
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@Override
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public void close() {}
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});
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logger.warning("Logging Warning");
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logger.info("Logging Info");
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System.out.print(trace);
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}
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} /* Output:
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[WARNING:, CustomHandler:, main:, <Logging Warning>,
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, INFO:, CustomHandler:, main:, <Logging Info>,
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]
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May 14, 2015 3:29:53 PM CustomHandler main
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WARNING: Logging Warning
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May 14, 2015 3:29:53 PM CustomHandler main
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INFO: Logging Info
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*///:~
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