MetricFilterExtension.java 文件源码

@Override
public void handleDeployment(DeploymentInfo deploymentInfo, ServletContext servletContext) {

    if (!contextBlacklist.contains(deploymentInfo.getContextPath())) {
        LOG.info("Adding metrics filter to  deployment for context " + deploymentInfo.getContextPath());
        FilterInfo metricsFilterInfo = new FilterInfo("metricsfilter", ServletMetricsFilter.class);
        metricsFilterInfo.setAsyncSupported(true);
        metricsFilterInfo.addInitParam(ServletMetricsFilter.BUCKET_CONFIG_PARAM,System.getProperty("prometheus.wildfly.filter.buckets",""));
        deploymentInfo.addFilter(metricsFilterInfo);
        deploymentInfo.addFilterUrlMapping("metricsfilter", "/*", DispatcherType.REQUEST);
    } else {
        LOG.info("Metrics filter not added to black listed context " + deploymentInfo.getContextPath());
        LOG.info(contextBlacklist.toString());
    }
}