Retrieve MS Project Calendar Info in Aspose.Tasks

Introduction

In this tutorial, we’ll explore how to retrieve calendar information from Microsoft Project files using the Aspose.Tasks for Java library. Aspose.Tasks provides powerful features to manipulate project data, including accessing calendar details such as working days and hours.

Prerequisites

Before we begin, make sure you have the following:

• Basic knowledge of Java programming.
• Java Development Kit (JDK) installed on your system.
• Aspose.Tasks for Java library. You can download it from here.

Import Packages

First, you need to import the necessary packages in your Java code to use Aspose.Tasks functionalities.

import com.aspose.tasks.Calendar;
import com.aspose.tasks.CalendarCollection;
import com.aspose.tasks.Project;
import com.aspose.tasks.WeekDay;
import com.aspose.tasks.WeekDayCollection;

Now let’s break down the provided example into multiple steps for a better understanding.

Step 1: Set Data Directory

String dataDir = "Your Data Directory";

Replace "Your Data Directory" with the path to your project files directory.

Step 2: Define Time Units

long OneSec = 10000000;
long OneMin = 60 * OneSec;
long OneHour = 60 * OneMin;

These constants represent time units in microseconds.

Step 3: Create Project Instance

Project project = new Project(dataDir + "project.mpp");

This line creates an instance of the Project class, initializing it with the path to the project file (project.mpp).

Step 4: Retrieve Calendars Information

CalendarCollection alCals = project.getCalendars();

Here, we retrieve a collection of calendars present in the project file.

Step 5: Iterate Through Calendars

for (Calendar cal : alCals) {
    if (cal.getName() != null) {
        // Calendar Information
        System.out.println("Calendar UID : " + cal.getUid());
        System.out.println("Calendar Name : " + cal.getName());
        // Iterate Through WeekDays
        WeekDayCollection alDays = cal.getWeekDays();
        for (WeekDay wd : alDays) {
            double ts = wd.getWorkingTime(); // Time in milliseconds
            double time = ts / (OneHour); // Convert to hours
            if (wd.getDayWorking()) {
                // Display Working Days and Hours
                System.out.print(wd.getDayType() + ":");
                System.out.print("Working Time:" + time + " Hours");
                System.out.println(", Ticks = " + ts);
            }
        }
    }
}

This loop iterates through each calendar and prints its UID, name, and working days with respective working hours.

Step 6: Display Completion Message

System.out.println("Process completed Successfully");

Finally, a message is displayed indicating the completion of the process.

Conclusion

In this tutorial, we learned how to retrieve calendar information from MS Project files using Aspose.Tasks for Java. By following these steps, you can efficiently access and manipulate project data in your Java applications.

FAQ’s

Q: Can I use Aspose.Tasks with other programming languages?

A: Yes, Aspose.Tasks supports multiple platforms and programming languages, including .NET, C++, Python, and Java.

Q: Is there a free trial available for Aspose.Tasks?

A: Yes, you can download a free trial version from here.

Q: How can I get support for Aspose.Tasks?

A: You can get support from the Aspose.Tasks community forum here.

Q: Can I purchase a temporary license for Aspose.Tasks?

A: Yes, temporary licenses are available for purchase here.

Q: Where can I find detailed documentation for Aspose.Tasks?

A: You can refer to the documentation here.