com.fasterxml.clustermate.servlet

Class NodeMetricsServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

com.fasterxml.clustermate.servlet.ServletBase

com.fasterxml.clustermate.servlet.NodeMetricsServlet

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class NodeMetricsServlet
extends ServletBase

Stand-alone servlet that may be used for serving metrics information regarding this node (and possibly its peers as well)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected BackgroundMetricsAccessor	_accessor
protected AtomicBoolean	_indent
protected static String	QUERY_PARAM_FULL Query parameter to further request server to obtain full statistics, not just cheap ones.
protected static String	QUERY_PARAM_INDENT Can also explicitly request indentation (or lack thereof)
protected static String	QUERY_PARAM_REFRESH Query parameter to request server to refresh its stats

Fields inherited from class com.fasterxml.clustermate.servlet.ServletBase

_basePath, _clusterView, _timeMaster, LOG

Constructor Summary

Constructors

Constructor and Description
NodeMetricsServlet(SharedServiceStuff stuff, BackgroundMetricsAccessor accessor)

Method Summary

Methods

Modifier and Type	Method and Description
void	handleGet(ServletServiceRequest request, ServletServiceResponse response, com.fasterxml.storemate.store.util.OperationDiagnostics metadata) GET is used for simple access of cluster status
void	setIndent(boolean state)

Methods inherited from class com.fasterxml.clustermate.servlet.ServletBase

_addStdHeaders, _trimPath, constructMetadata, constructRequest, constructResponse, doDelete, doGet, doHead, doPost, doPut, getClusterView, handleDelete, handleHead, handlePost, handlePut

Methods inherited from class javax.servlet.http.HttpServlet

doOptions, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

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

Methods inherited from class java.lang.Object

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

Field Detail

QUERY_PARAM_REFRESH

protected static final String QUERY_PARAM_REFRESH

Query parameter to request server to refresh its stats

See Also:

Constant Field Values

QUERY_PARAM_FULL

protected static final String QUERY_PARAM_FULL

Query parameter to further request server to obtain full statistics, not just cheap ones.

See Also:

Constant Field Values

QUERY_PARAM_INDENT

protected static final String QUERY_PARAM_INDENT

Can also explicitly request indentation (or lack thereof)

See Also:

Constant Field Values

_accessor

protected final BackgroundMetricsAccessor _accessor

_indent

protected final AtomicBoolean _indent

Constructor Detail

NodeMetricsServlet

public NodeMetricsServlet(SharedServiceStuff stuff,
                  BackgroundMetricsAccessor accessor)

Method Detail

setIndent

public void setIndent(boolean state)

handleGet

public void handleGet(ServletServiceRequest request,
             ServletServiceResponse response,
             com.fasterxml.storemate.store.util.OperationDiagnostics metadata)
               throws IOException

GET is used for simple access of cluster status

Overrides:

handleGet in class ServletBase

Throws:

IOException