com.yammer.metrics.reporting
Class MetricsServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          com.yammer.metrics.reporting.MetricsServlet

All Implemented Interfaces:

MetricProcessor<com.yammer.metrics.reporting.MetricsServlet.Context>, Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class MetricsServlet
extends javax.servlet.http.HttpServlet
implements MetricProcessor<com.yammer.metrics.reporting.MetricsServlet.Context>

See Also:

Serialized Form

Field Summary

static String	ATTR_NAME_HEALTHCHECK_REGISTRY
static String	ATTR_NAME_METRICS_REGISTRY
static String	ATTR_NAME_VM_REGISTRY
static String	HEALTHCHECK_URI
static String	METRICS_URI
static String	PING_URI
static String	THREADS_URI

Constructor Summary

MetricsServlet()

MetricsServlet(boolean showJvmMetrics)

MetricsServlet(org.codehaus.jackson.JsonFactory factory)

MetricsServlet(org.codehaus.jackson.JsonFactory factory, boolean showJvmMetrics)

MetricsServlet(org.codehaus.jackson.JsonFactory factory, String healthcheckUri, String metricsUri, String pingUri, String threadsUri)

MetricsServlet(org.codehaus.jackson.JsonFactory factory, String healthcheckUri, String metricsUri, String pingUri, String threadsUri, boolean showJvmMetrics)

MetricsServlet(MetricsRegistry metricsRegistry, HealthCheckRegistry healthCheckRegistry, org.codehaus.jackson.JsonFactory factory, String healthcheckUri, String metricsUri, String pingUri, String threadsUri, boolean showJvmMetrics)

MetricsServlet(MetricsRegistry metricsRegistry, HealthCheckRegistry healthCheckRegistry, String healthcheckUri, String metricsUri, String pingUri, String threadsUri, boolean showJvmMetrics)

MetricsServlet(MetricsRegistry metricsRegistry, HealthCheckRegistry healthCheckRegistry, VirtualMachineMetrics vm, org.codehaus.jackson.JsonFactory factory, String healthcheckUri, String metricsUri, String pingUri, String threadsUri, boolean showJvmMetrics)

MetricsServlet(String healthcheckUri, String metricsUri, String pingUri, String threadsUri)

Method Summary

protected void	doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
void	init(javax.servlet.ServletConfig config)
void	processCounter(MetricName name, Counter counter, com.yammer.metrics.reporting.MetricsServlet.Context context)
void	processGauge(MetricName name, Gauge<?> gauge, com.yammer.metrics.reporting.MetricsServlet.Context context)
void	processHistogram(MetricName name, Histogram histogram, com.yammer.metrics.reporting.MetricsServlet.Context context)
void	processMeter(MetricName name, Metered meter, com.yammer.metrics.reporting.MetricsServlet.Context context)
void	processTimer(MetricName name, Timer timer, com.yammer.metrics.reporting.MetricsServlet.Context context)
void	writeRegularMetrics(org.codehaus.jackson.JsonGenerator json, String classPrefix, boolean showFullSamples)

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ATTR_NAME_METRICS_REGISTRY

public static final String ATTR_NAME_METRICS_REGISTRY

ATTR_NAME_HEALTHCHECK_REGISTRY

public static final String ATTR_NAME_HEALTHCHECK_REGISTRY

ATTR_NAME_VM_REGISTRY

public static final String ATTR_NAME_VM_REGISTRY

HEALTHCHECK_URI

public static final String HEALTHCHECK_URI

See Also:

Constant Field Values

METRICS_URI

public static final String METRICS_URI

See Also:

Constant Field Values

PING_URI

public static final String PING_URI

See Also:

Constant Field Values

THREADS_URI

public static final String THREADS_URI

See Also:

Constant Field Values

Constructor Detail

MetricsServlet

public MetricsServlet()

MetricsServlet

public MetricsServlet(boolean showJvmMetrics)

MetricsServlet

public MetricsServlet(org.codehaus.jackson.JsonFactory factory)

MetricsServlet

public MetricsServlet(org.codehaus.jackson.JsonFactory factory,
                      boolean showJvmMetrics)

MetricsServlet

public MetricsServlet(String healthcheckUri,
                      String metricsUri,
                      String pingUri,
                      String threadsUri)

MetricsServlet

public MetricsServlet(org.codehaus.jackson.JsonFactory factory,
                      String healthcheckUri,
                      String metricsUri,
                      String pingUri,
                      String threadsUri)

MetricsServlet

public MetricsServlet(org.codehaus.jackson.JsonFactory factory,
                      String healthcheckUri,
                      String metricsUri,
                      String pingUri,
                      String threadsUri,
                      boolean showJvmMetrics)

MetricsServlet

public MetricsServlet(MetricsRegistry metricsRegistry,
                      HealthCheckRegistry healthCheckRegistry,
                      String healthcheckUri,
                      String metricsUri,
                      String pingUri,
                      String threadsUri,
                      boolean showJvmMetrics)

MetricsServlet

public MetricsServlet(MetricsRegistry metricsRegistry,
                      HealthCheckRegistry healthCheckRegistry,
                      org.codehaus.jackson.JsonFactory factory,
                      String healthcheckUri,
                      String metricsUri,
                      String pingUri,
                      String threadsUri,
                      boolean showJvmMetrics)

MetricsServlet

public MetricsServlet(MetricsRegistry metricsRegistry,
                      HealthCheckRegistry healthCheckRegistry,
                      VirtualMachineMetrics vm,
                      org.codehaus.jackson.JsonFactory factory,
                      String healthcheckUri,
                      String metricsUri,
                      String pingUri,
                      String threadsUri,
                      boolean showJvmMetrics)

Method Detail

init

public void init(javax.servlet.ServletConfig config)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Servlet

Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException

doGet

protected void doGet(javax.servlet.http.HttpServletRequest req,
                     javax.servlet.http.HttpServletResponse resp)
              throws javax.servlet.ServletException,
                     IOException

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException

writeRegularMetrics

public void writeRegularMetrics(org.codehaus.jackson.JsonGenerator json,
                                String classPrefix,
                                boolean showFullSamples)
                         throws IOException

Throws:

IOException

processHistogram

public void processHistogram(MetricName name,
                             Histogram histogram,
                             com.yammer.metrics.reporting.MetricsServlet.Context context)
                      throws Exception

Specified by:

processHistogram in interface MetricProcessor<com.yammer.metrics.reporting.MetricsServlet.Context>

Throws:

Exception

processCounter

public void processCounter(MetricName name,
                           Counter counter,
                           com.yammer.metrics.reporting.MetricsServlet.Context context)
                    throws Exception

Specified by:

processCounter in interface MetricProcessor<com.yammer.metrics.reporting.MetricsServlet.Context>

Throws:

Exception

processGauge

public void processGauge(MetricName name,
                         Gauge<?> gauge,
                         com.yammer.metrics.reporting.MetricsServlet.Context context)
                  throws Exception

Specified by:

processGauge in interface MetricProcessor<com.yammer.metrics.reporting.MetricsServlet.Context>

Throws:

Exception

processMeter

public void processMeter(MetricName name,
                         Metered meter,
                         com.yammer.metrics.reporting.MetricsServlet.Context context)
                  throws Exception

Specified by:

processMeter in interface MetricProcessor<com.yammer.metrics.reporting.MetricsServlet.Context>

Throws:

Exception

processTimer

public void processTimer(MetricName name,
                         Timer timer,
                         com.yammer.metrics.reporting.MetricsServlet.Context context)
                  throws Exception

Specified by:

processTimer in interface MetricProcessor<com.yammer.metrics.reporting.MetricsServlet.Context>

Throws:

Exception