How to extract the text/content of a pdf file using JSR223 PreProcessor in JMeter?
You will need a library like PDFBox for this
Add it and all its dependencies to JMeter Classpath
Restart JMeter to pick the .jars up
The simplest code to read text from PDF would be something like:
def doc = org.apache.pdfbox.pdmodel.PDDocument.load(new File('path-to-the-file.pdf'))
def text = new org.apache.pdfbox.text.PDFTextStripper().getText(doc)
//now do what you need with the text, i.e. save it into ${text} JMeter variable
vars.put('text', text)
More information:
Apache Groovy: What Is Groovy Used For?
Apache PDFBox Cookbook - Text Extraction
Related
In my JMeter test plan, I have two CSV Data Config elements.
CSV Data Config-element-requestBodies: This CSV Data Config element has a variable named "requestBody". In the corresponding CSV file, each line has an XML request with a placeholder string.
CSV Data Config-element-subject: variables. This CSV Data Config element has a variable name "subjectDn". In the corresponding CSV file, each line has a distinguished name (DN) for a user.
The "requestBody" variable will contain an XML request from the CSV file that has the request bodies, with a placeholder string and I want to replace that placeholder with the contents of the "subjectDn" variable, and then use the modified "requestBody" variable in the HTTP Request element.
In other words:
Replace the placeholder string in the ${requestBody} with the value in the ${subjectDn}, then
Use the modified ${requestBody} in the HTTP Request
How can I do that? What is the easiest/least overhead way of doing that?
I've tried using the "__evalVar" function (see https://am.net/lib/tools/NetworkManagement/apache-jmeter-2.8/printable_docs/usermanual/functions.html), but it looks like that is not able to do the replacement when the string is from a CSV file?
Thanks in advance!
Jim
Wrap your ${requestBody} into __eval() function, it will allow JMeter to resolve JMeter Functions and Variables which are present as "placeholders" in the CSV file to their respective values.
${__eval(${requestBody})}
Also if you consider scripting to accomplish your requirements be informed that starting from JMeter 3.1 it's recommended to use JSR223 Test Elements and Groovy language. More information: Apache Groovy: What Is Groovy Used For?
I was able to get this woring by using a Beanshell pre-processor and some Java code that does var.get() and then Java String replaceall() and then var.put().
I have to send JSON requests based on the CSV test data. Suppose there are 90 records - which are basically the request bodies. I put the Thread in a loop to keep sending the request until the last one in the CSV.
Every time I get the response, I need to append them into a single CSV file. Now, since Jmeter Listener does not consolidate all the responses into CSV (I do not want it in xml), I want to know if I can write a Java snippet in BeanShell, capture all responses and write them to a CSV file.
You can use JSR223 Sampler with File.append adding text with , to append to CSV file
This will append to the end of the file.
File file = new File("out.txt")
file.append("hello\n")
If you want the "program"
Add JSR223 Listener to your Test Plan (since JMeter 3.1 it is recommended to use JSR223 Test Elements for scripting)
Put the following code into "Script" area
new File('myfile.csv') << prev.getResponseDataAsString() << System.getProperty('line.separator')
where prev stands for previous SampleResult class instance. Check out Top 8 JMeter Java Classes You Should Be Using with Groovy article for more information on JMeter API shorthands available for the JSR223 Test Elements.
A better option would be saving a response into a JMeter Variable using i.e. Regular Expression Extractor and writing it to a file via sample_variables property
I have a web-service which return the encoded pdf but when i try to extract the data in it by using regular expression extractor(JMeter) it does not extract. I check the value of variable, it shows null value. I googled various sites but didn't succeed. After extracting the data i will save this in to one file.
I googled and refer various sites but didn't succeed. Below here are some references:
https://dzone.com/articles/how-to-read-a-pdf-file-in-apache-jmeter
https://www.blazemeter.com/blog/what-every-performance-tester-should-know-about-extracting-data-files-jmeter/
i got nothing in my variable when i see in debug sampler.
If you want to extract text from the PDF file into a JMeter Variable the only way of doing this is using JSR223 PostProcessor and PDFBox
Download tika-app.jar and put it to JMeter Classpath
Restart JMeter to pick the .jar up
Add JSR223 PostProcessor as a child of the request which returns the PDF
Put the following code into "Script" area:
def handler = new org.apache.tika.sax.BodyContentHandler();
def metadata = new org.apache.tika.metadata.Metadata();
def inputstream = new ByteArrayInputStream(prev.getResponseData());
def context = new org.apache.tika.parser.ParseContext();
def pdfparser = new org.apache.tika.parser.pdf.PDFParser();
pdfparser.parse(inputstream, handler, metadata, context);
vars.put('pdfText', handler.toString())
That's it, you should have the text from the PDF file as ${pdfText} JMeter Variable
More information:
PDFBox Examples
Apache Groovy - Why and How You Should Use It
Is it possible to get a CSV file report in JMeter just with only defined regular expression variables values from all the samplers?
Because I have defined sample_variables in JMeter user.properties file. Thanks.
The easiest way is using Flexible File Writer
A little bit harder - suppress all JMeter default result saving configuration via user.properties file like:
jmeter.save.saveservice.output_format=csv
jmeter.save.saveservice.assertion_results_failure_message=false
jmeter.save.saveservice.assertion_results=none
jmeter.save.saveservice.data_type=false
jmeter.save.saveservice.label=false
jmeter.save.saveservice.response_code=false
jmeter.save.saveservice.response_data=false
jmeter.save.saveservice.response_data.on_error=false
jmeter.save.saveservice.response_message=false
jmeter.save.saveservice.successful=false
jmeter.save.saveservice.thread_name=false
jmeter.save.saveservice.time=false
jmeter.save.saveservice.subresults=false
jmeter.save.saveservice.assertions=false
jmeter.save.saveservice.latency=false
jmeter.save.saveservice.connect_time=false
jmeter.save.saveservice.samplerData=false
jmeter.save.saveservice.responseHeaders=false
jmeter.save.saveservice.requestHeaders=false
jmeter.save.saveservice.encoding=false
jmeter.save.saveservice.bytes=false
jmeter.save.saveservice.url=false
jmeter.save.saveservice.filename=false
jmeter.save.saveservice.hostname=false
jmeter.save.saveservice.thread_counts=false
jmeter.save.saveservice.sample_count=false
jmeter.save.saveservice.idle_time=false
jmeter.save.saveservice.print_field_names=false
Hardest: add i.e. Beanshell Listener to write variable value to a separate file. Example code is something like:
import org.apache.commons.io.FileUtils;
FileUtils.writeStringToFile(new File("target_file.csv",vars.get("your_variable_name")));
See How to Use BeanShell: JMeter's Favorite Built-in Component guide for more information regarding bypassing JMeter limitations using scripting
In jMeter How to get multi part body in BeanShell PreProcessor
I need to get the image data and post parameters
by using sampler.getArguments(); I am able to get the post parameters but not the image file
Please help me
You can use getHTTPFiles method of Sampler API.
sampler.getHTTPFiles() will return the file path HTTPFileArg in an array through which you can update new file at run time.
Update:
String path = sampler.getHTTPFiles()[0].getPath();
byte[] array = Files.readAllBytes(new File(path).toPath());
Something like:
File image = new File(sampler.getHTTPFiles()[0].getPath());
//do what you need with the image file
If you need extended image information take a look at ImageIO. For more Beanshell tips and tricks check out How to Use BeanShell: JMeter's Favorite Built-in Component