Extract detailed splits from task

Question

Extract detailed splits from task

RafaelN0bre opened this issue 6 months ago · comments

Hi, I am currently struggling with an issue whose main goal is to extract task splits with detailed start and finish information. In my .mpp file, some tasks are split as shown below:

I have attempted to use getSplits from the Task class, but it doesn't return the expected results, that is the dates when the task is being executed.

Additionally, I would like to know if there is any way to reschedule tasks based on a provided status_date or if this functionality is not within the scope of the library.

Thanks.

Description

Here i sending an mpp with 2 task that are splitted. 6 and 7, as shown below:

I expected to get in getSplits, the LocalDateTimeRanges corresponding to the filled bar, where the task will be actually executed. But as shown below, i get None splits for task 6 and five for task 7 (which do not match)

Assets

Mpp Sample - https://drive.google.com/file/d/127lbfu5OrnFvGRbq0eZH5szlvf9mOotX/view?usp=sharing

Code

import jpype
try:
    jpype.startJVM()
except:
    pass

import mpxj

from java.io import FileInputStream
from net.sf.mpxj.reader import UniversalProjectReader

mpp_file_path = r"test_splits.mpp"
input_stream = FileInputStream(mpp_file_path)
project = UniversalProjectReader().read(input_stream)

def print_task(task):
    print("Task ID - " + str(task.getID()))
    print("Name - " + str(task.getName()))
    print("Baseline Start 1 - " + str(task.getBaselineStart(1)))
    print("Actual Start - " + str(task.getActualStart()))
    print("Baseline End 1 - " + str(task.getBaselineFinish(1)))
    print("Actual End - " + str(task.getActualFinish()))
    print("Baseline Duration 1 - " + str(task.getBaselineDuration(1)))
    print("Actual Duration - " + str(task.getActualDuration()))
    
    print("Splits :")
    print(task.getSplits())
    print("\n")

task = project.getTaskByID(jpype.JClass("java.lang.Integer")(6))
print_task(task)
task = project.getTaskByID(jpype.JClass("java.lang.Integer")(7))
print_task(task)

Enviroment

Windows 11
Python 3.10.8
java 11.0.19 2023-04-18 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.19+9-LTS-224)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.19+9-LTS-224, mixed mode)
mpxj 12.5.0
JPype1==1.4.1
mpxj==12.5.0

Thanks for the support

Jon Iles · Answer 3 · Mon Jan 08 2024 23:41:33 GMT+0800 (China Standard Time)

Thanks for the detailed information, I will look at this as soon as I can.

RafaelN0bre · Answer 4 · Thu Jan 11 2024 21:59:08 GMT+0800 (China Standard Time)

@joniles, any update?

I would appreciate some clarification to determine if the issue lies with the library or if I am misunderstanding the object structure. If the problem is related to the getSplits() method, could you please guide me to the specific part of the code where the splits are translated? I'm interested in exploring a potential correction and, if successful, submitting a pull request.

I understand I might be a bit persistent, and I apologize for that. Currently, I am working on a project involving the translation and processing of data from MPP projects, and addressing this issue is crucial. I would like to contribute to the improvement of the library as well.

Thank you for your time and assistance.

Jon Iles · Answer 5 · Thu Jan 11 2024 22:01:27 GMT+0800 (China Standard Time)

Apologies I'm busy with other work, I will look at this issue as soon as I can, but it is likely to be next week before I have that opportunity.

Jon Iles · Answer 6 · Tue Jan 23 2024 04:43:03 GMT+0800 (China Standard Time)

The data returned by the getSplits method is in the form [working time][non working time][working time], so a task with three splits will have five entries in the list returned by getSplits. I believe I have fixed the issue you noted which means that task 6 in your sample file doesn't return anything from getSplits. This fix will be available shortly in the next MPXJ release.