Example usage for org.apache.commons.configuration SubsetConfiguration SubsetConfiguration

Introduction

In this page you can find the example usage for org.apache.commons.configuration SubsetConfiguration SubsetConfiguration.

Prototype

public SubsetConfiguration(Configuration parent, String prefix) 

Source Link

Document

Create a subset of the specified configuration

Usage

From source file:com.github.joshelser.dropwizard.metrics.hadoop.StandaloneExample.java

public static void main(String[] args) throws Exception {
    final MetricRegistry metrics = new MetricRegistry();

    final HadoopMetrics2Reporter metrics2Reporter = HadoopMetrics2Reporter.forRegistry(metrics).build(
            DefaultMetricsSystem.initialize("StandaloneTest"), // The application-level name
            "Test", // Component name
            "Test", // Component description
            "Test"); // Name for each metric record
    final ConsoleReporter consoleReporter = ConsoleReporter.forRegistry(metrics).build();

    MetricsSystem metrics2 = DefaultMetricsSystem.instance();
    // Writes to stdout without a filename configuration
    // Will be invoked every 10seconds by default
    FileSink sink = new FileSink();
    metrics2.register("filesink", "filesink", sink);
    sink.init(new SubsetConfiguration(null, null) {
        public String getString(String key) {
            if (key.equals("filename")) {
                return null;
            }//w  w  w  .jav a2s  .c  om
            return super.getString(key);
        }
    });

    // How often should the dropwizard reporter be invoked
    metrics2Reporter.start(500, TimeUnit.MILLISECONDS);
    // How often will the dropwziard metrics be logged to the console
    consoleReporter.start(2, TimeUnit.SECONDS);

    generateMetrics(metrics, 5000, 25, TimeUnit.MILLISECONDS, metrics2Reporter, 10);
}

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