org.hawkular.apm.api.utils

Class NodeUtil

java.lang.Object

org.hawkular.apm.api.utils.NodeUtil

public class NodeUtil
extends Object

This class provides node utility functions.

Author:

gbrown

Constructor Summary

Constructors

Constructor and Description
NodeUtil()

Method Summary

Modifier and Type	Method and Description
static <T extends Node> List<T>	findNodes(List<Node> nodes, Class<T> cls) This method recursively scans a node hierarchy to locate instances of a particular type.
static <T extends Node> void	findNodes(List<Node> nodes, Class<T> cls, List<T> results) This method recursively scans a node hierarchy to locate instances of a particular type.
static boolean	isOriginalURI(Node node, String uri) Deprecated. Only used in original JavaAgent. Not to be used with OpenTracing.
static boolean	isURIRewritten(Node node) Deprecated. Only used in original JavaAgent. Not to be used with OpenTracing.
static boolean	rewriteURI(Node node) This method checks whether a URI template has been defined.
static void	rewriteURI(Node node, String uri) Deprecated. Only used in original JavaAgent. Not to be used with OpenTracing.

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeUtil

public NodeUtil()

Method Detail

isURIRewritten

@Deprecated
public static boolean isURIRewritten(Node node)

Deprecated. Only used in original JavaAgent. Not to be used with OpenTracing.

This method tests whether the URI has been rewritten.

Parameters:

node - The node

Returns:

Whether the node's URI has been rewritten

rewriteURI

@Deprecated
public static void rewriteURI(Node node,
                                          String uri)

Deprecated. Only used in original JavaAgent. Not to be used with OpenTracing.

This method rewrites the URI associated with the supplied node and stores the original in the node's details.

Parameters:

node - The node

uri - The new URI

isOriginalURI

@Deprecated
public static boolean isOriginalURI(Node node,
                                                String uri)

Deprecated. Only used in original JavaAgent. Not to be used with OpenTracing.

This method determines whether the supplied URI matches the original URI on the node.

Parameters:

node - The node

uri - The URI

Returns:

Whether the supplied URI is the same as the node's original

rewriteURI

public static boolean rewriteURI(Node node)

This method checks whether a URI template has been defined. If so, then it will extract the relevant properties from the URI and rewrite the URI to be the template. This results in the URI being a stable/consistent value (for aggregation purposes) while retaining the parameters from the actual URI as properties.

Parameters:

node - The node containing the current URI and optional template

Returns:

Whether the node was processed

findNodes

public static <T extends Node> List<T> findNodes(List<Node> nodes,
                                                 Class<T> cls)

This method recursively scans a node hierarchy to locate instances of a particular type.

Parameters:

nodes - The nodes to scan

cls - The class of the node to be returned

Returns:

The list of nodes found

findNodes

public static <T extends Node> void findNodes(List<Node> nodes,
                                              Class<T> cls,
                                              List<T> results)

This method recursively scans a node hierarchy to locate instances of a particular type.

Parameters:

nodes - The nodes to scan

cls - The class of the node to be returned

results - The list of nodes found