com.appdynamics.eumagent.runtime

Interface HttpRequestTracker

public interface HttpRequestTracker

If the SDK does not automatically discover your HTTP requests, use this class to explicitly report them.

Note that most users will not need to use this class; check the documentation for the list of HTTP API that are automatically discovered.

Suppose that you have a method like this for making HTTP requests:

  public byte[] sendRequest(URL url) throws HttpException {  try {  // implementation omitted  return responseBody;  } catch (UnderlyingException e) {  throw new HttpException(e);  }  } 

Here’s how you would augment this method to report requests to the SDK:

  public byte[] sendRequest(URL url) throws HttpException {  HttpRequestTracker tracker = Instrumentation.beginHttpRequest(url);  try {  // implementation omitted  tracker.withResponseCode(theResponseCode)  .withResponseHeaderFields(theResponseHeaderFields)  .reportDone();  return responseBody;  } catch (UnderlyingException e) {  tracker.withException(e)  .reportDone();  throw new HttpException(e);  }  } 

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	getError() Gets the error message associated with this request.
java.lang.Exception	getException() Gets the exception associated with this request.
java.lang.String	getInstrumentationSource() Gets the instrumentation source, as set by withInstrumentationSource(String).
java.lang.Long	getRequestContentLength() Gets the request content length, as set by withRequestContentLength(Long)
java.util.Map<java.lang.String,java.util.List<java.lang.String>>	getRequestHeaderFields() Returns the request header fields associated with this request.
int	getResponseCode() Gets the HTTP status code associated with this request.
java.lang.Long	getResponseContentLength() Gets the response content length, as set by withResponseContentLength(Long)
java.util.Map<java.lang.String,java.util.List<java.lang.String>>	getResponseHeaderFields() Returns the response header fields associated with this request.
java.lang.Throwable	getThrowable() Gets the throwable associated with this request.
void	reportDone() Stops tracking an HTTP request.
HttpRequestTracker	withError(java.lang.String error) Indicates that this request encountered an error.
HttpRequestTracker	withException(java.lang.Exception e) Deprecated. Use withThrowable(Throwable) instead. If both an exception and a throwable are specified, the exception is ignored.
HttpRequestTracker	withInstrumentationSource(java.lang.String instrumentationSource) Sets a string to be used to identify the source of the instrumentation that generated this tracker.
HttpRequestTracker	withRequestContentLength(java.lang.Long length) Sets the request content length associated with this request.
HttpRequestTracker	withRequestHeaderFields(java.util.Map<java.lang.String,java.util.List<java.lang.String>> requestHeaderFields) Sets the request headers associated with this request.
HttpRequestTracker	withResponseCode(int responseCode) Sets the HTTP response code associated with this request.
HttpRequestTracker	withResponseContentLength(java.lang.Long length) Sets the response content length associated with this request.
HttpRequestTracker	withResponseHeaderFields(java.util.Map<java.lang.String,java.util.List<java.lang.String>> responseHeaderFields) Sets the response headers associated with this request.
HttpRequestTracker	withStatusLine(java.lang.String statusLine) Sets the HTTP status line associated with this request.
HttpRequestTracker	withThrowable(java.lang.Throwable e) Indicates that this request encountered an error.

Method Detail

getException

java.lang.Exception getException()

Gets the exception associated with this request.

Returns:

an exception describing the error.

withException

@Deprecated
HttpRequestTracker withException(java.lang.Exception e)

Deprecated. Use withThrowable(Throwable) instead. If both an exception and a throwable are specified, the exception is ignored.

Indicates that this request encountered an error.

This method is dominant over withError(String). If both a string and an exception are specified, the string is ignored.

Parameters:

e - An exception describing the error.

See Also:

withThrowable(Throwable), withError(String)

getThrowable

java.lang.Throwable getThrowable()

Gets the throwable associated with this request.

Returns:

a throwable describing the error.

withThrowable

HttpRequestTracker withThrowable(java.lang.Throwable e)

Indicates that this request encountered an error.

This method is preferred over withError(String). If both a string and a throwable are specified, the string is ignored.

Parameters:

e - A throwable describing the error.

See Also:

withError(String)

getError

java.lang.String getError()

Gets the error message associated with this request.

Returns:

a String describing the error.

withError

HttpRequestTracker withError(java.lang.String error)

Indicates that this request encountered an error.

Parameters:

error - A string describing the error.

See Also:

withThrowable(Throwable)

getResponseCode

int getResponseCode()

Gets the HTTP status code associated with this request.

Returns:

the status code of the response.

Throws:

java.lang.NullPointerException - if withResponseCode(int) has never been called to set the value.

withResponseCode

HttpRequestTracker withResponseCode(int responseCode)

Sets the HTTP response code associated with this request.

If a response was received, this method must be called, or the request will not be reported.

Parameters:

responseCode - The status code of the response.

withStatusLine

HttpRequestTracker withStatusLine(java.lang.String statusLine)

Sets the HTTP status line associated with this request.

This is optional

Parameters:

statusLine -

getResponseHeaderFields

java.util.Map<java.lang.String,java.util.List<java.lang.String>> getResponseHeaderFields()

Returns the response header fields associated with this request.

Returns:

the headers of the request.

withResponseHeaderFields

HttpRequestTracker withResponseHeaderFields(java.util.Map<java.lang.String,java.util.List<java.lang.String>> responseHeaderFields)

Sets the response headers associated with this request.

Parameters:

responseHeaderFields - The headers of the response.

getResponseContentLength

java.lang.Long getResponseContentLength()

Gets the response content length, as set by withResponseContentLength(Long)

Returns:

the content length of the response, or null if it has never been set

withResponseContentLength

HttpRequestTracker withResponseContentLength(java.lang.Long length)

Sets the response content length associated with this request.

Note: This will override any content length header found in the Response Headers

Parameters:

length - the content length of the response

getRequestHeaderFields

java.util.Map<java.lang.String,java.util.List<java.lang.String>> getRequestHeaderFields()

Returns the request header fields associated with this request.

Returns:

the headers of the request.

withRequestHeaderFields

HttpRequestTracker withRequestHeaderFields(java.util.Map<java.lang.String,java.util.List<java.lang.String>> requestHeaderFields)

Sets the request headers associated with this request.

Parameters:

requestHeaderFields - The headers of the request.

getRequestContentLength

java.lang.Long getRequestContentLength()

Gets the request content length, as set by withRequestContentLength(Long)

Returns:

the content length of the response, or null if it has never been set

withRequestContentLength

HttpRequestTracker withRequestContentLength(java.lang.Long length)

Sets the request content length associated with this request.

Note: This will override any content length header found in the Request Headers

Parameters:

length - the content length of the request

getInstrumentationSource

java.lang.String getInstrumentationSource()

Gets the instrumentation source, as set by withInstrumentationSource(String).

The default value is "Manual HttpTracker".

Returns:

the the source of the instrumentation that generated this tracker

withInstrumentationSource

HttpRequestTracker withInstrumentationSource(java.lang.String instrumentationSource)

Sets a string to be used to identify the source of the instrumentation that generated this tracker.

By default, it is set to "Manual HttpTracker". You should not have to modify this.

Parameters:

instrumentationSource -

reportDone

void reportDone()

Stops tracking an HTTP request.

Immediately after receiving a response or an error, set the appropriate fields and call this method to report the outcome of the HTTP request. You should not continue to use this object after calling this method – if you need to track another request, obtain a new instance.