Package com.composum.sling.nodes.consoleplugin

Class ShowServiceGraphConsolePlugin

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

com.composum.sling.nodes.consoleplugin.ShowServiceGraphConsolePlugin

All Implemented Interfaces:

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

public class ShowServiceGraphConsolePlugin
extends javax.servlet.http.HttpServlet

Plots a graph of service usages. Use as console plugin: http://localhost:9090/system/console/servicegraph. Use with graphviz tools http://graphviz.org/ e.g. with

 curl -u admin:admin 'http://localhost:9090/system/console/servicegraph.dot?classregex=%5Ecom.composum&type=dotty&bundle=true' | ccomps -x | unflatten -f -l 6 -c 3 | dot | gvpack | neato -Tpng -n2  > $TMPDIR/services.png ; open $TMPDIR/services.png
 

See Also:

"https://github.com/magjac/d3-graphviz", Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected org.osgi.framework.BundleContext	bundleContext
protected static String	LOC_CSS	Location for the CSS.
static String	PARAM_BUNDLE	Parameter that determines whether we should insert the bundles as subgraphs in dotty.
static String	PARAM_CLASSREGEX	A regex to limit the service classes to.
static String	PARAM_TYPE	Parameter that gives the type of the output: text or dotty / gv.

Constructor Summary

Constructors

Constructor	Description
ShowServiceGraphConsolePlugin()

Method Summary

Modifier and Type	Method	Description
protected static void	collectReferredClasses(Type type, List<Class> referredClasses, Set<Type> visited)
protected void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
protected void	writeForm(PrintWriter writer, javax.servlet.http.HttpServletRequest request, String classRegex)
protected void	writeReferences(PrintWriter writer, Map<Class<?>,org.osgi.framework.ServiceReference<?>> classes, Pattern classPattern, boolean showBundles)

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, init, log, log

Methods inherited from class java.lang.Object

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

Field Detail

PARAM_CLASSREGEX

public static final String PARAM_CLASSREGEX

A regex to limit the service classes to. Default: ^com.composum.

See Also:

Constant Field Values

PARAM_TYPE

public static final String PARAM_TYPE

Parameter that gives the type of the output: text or dotty / gv. Default: dotty.

See Also:

Constant Field Values

PARAM_BUNDLE

public static final String PARAM_BUNDLE

Parameter that determines whether we should insert the bundles as subgraphs in dotty.

See Also:

Constant Field Values

LOC_CSS

protected static final String LOC_CSS

Location for the CSS.

See Also:

Constant Field Values

bundleContext

protected org.osgi.framework.BundleContext bundleContext

Constructor Detail

ShowServiceGraphConsolePlugin

public ShowServiceGraphConsolePlugin()

Method Detail

writeForm

protected void writeForm(PrintWriter writer,
                         javax.servlet.http.HttpServletRequest request,
                         String classRegex)

doGet

protected void doGet(javax.servlet.http.HttpServletRequest request,
                     javax.servlet.http.HttpServletResponse response)
              throws javax.servlet.ServletException,
                     IOException

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

IOException

writeReferences

protected void writeReferences(PrintWriter writer,
                               Map<Class<?>,org.osgi.framework.ServiceReference<?>> classes,
                               Pattern classPattern,
                               boolean showBundles)

collectReferredClasses

protected static void collectReferredClasses(Type type,
                                             List<Class> referredClasses,
                                             Set<Type> visited)