MachineName (Apache JMeter API)

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org.apache.jmeter.functions
Class MachineName

java.lang.Object
  org.apache.jmeter.functions.AbstractFunction
      org.apache.jmeter.functions.MachineName

All Implemented Interfaces:: Function

public class MachineName
extends AbstractFunction
extends AbstractFunction

Return Machine Host

Since:: 1.X

Constructor Summary
`MachineName()`

Method Summary
`protected String`	`compute()`
`String`	`execute(SampleResult previousResult, Sampler currentSampler)` N.B. execute() should be synchronized if function is operating with non-thread-safe objects (e.g. operates with files).
`List<String>`	`getArgumentDesc()` Return a list of strings briefly describing each parameter your function takes.
`String`	`getReferenceKey()` Return the name of your function.
`void`	`setParameters(Collection<CompoundVariable> parameters)` Note: This is always called even if no parameters are provided (versions of JMeter after 2.3.1)

Methods inherited from class org.apache.jmeter.functions.AbstractFunction
`checkMinParameterCount, checkParameterCount, checkParameterCount, execute, getVariables`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

MachineName

public MachineName()

Method Detail

compute

protected String compute()

getReferenceKey

public String getReferenceKey()

Return the name of your function. Convention is to prepend "__" to the name (ie "__regexFunction")

Specified by:: getReferenceKey in interface Function
Specified by:: getReferenceKey in class AbstractFunction

Returns:: The name of the funtion
See Also:: Function.getReferenceKey()

execute

public String execute(SampleResult previousResult,
                      Sampler currentSampler)
               throws InvalidVariableException

N.B. execute() should be synchronized if function is operating with non-thread-safe objects (e.g. operates with files).

JMeter ensures setParameters() happens-before execute(): setParameters is executed in main thread, and worker threads are started after that.

Specified by:: execute in interface Function
Specified by:: execute in class AbstractFunction

Parameters:: previousResult - The previous SampleResult; currentSampler - The current Sampler
Returns:: The replacement value, which was generated by the function
Throws:: InvalidVariableException - - when the variables for the function call can't be evaluated
See Also:: Function.execute(SampleResult, Sampler)

setParameters

public void setParameters(Collection<CompoundVariable> parameters)
                   throws InvalidVariableException

Note: This is always called even if no parameters are provided (versions of JMeter after 2.3.1)

Specified by:: setParameters in interface Function
Specified by:: setParameters in class AbstractFunction

Parameters:: parameters - The parameters for the function call
Throws:: InvalidVariableException - - when the variables for the function call can't be evaluated
See Also:: Function.setParameters(Collection)

getArgumentDesc

public List<String> getArgumentDesc()

Return a list of strings briefly describing each parameter your function takes. Please use JMeterUtils.getResString(resource_name) to grab a resource string. Otherwise, your help text will be difficult to internationalize. This list is not optional. If you don't wish to write help, you must at least return a List containing the correct number of blank strings, one for each argument.

Returns:: List with brief descriptions for each parameter the function takes