DZone
Thanks for visiting DZone today,
Edit Profile
  • Manage Email Subscriptions
  • How to Post to DZone
  • Article Submission Guidelines
Sign Out View Profile
  • Post an Article
  • Manage My Drafts
Over 2 million developers have joined DZone.
Log In / Join
Refcards Trend Reports
Events Video Library
Refcards
Trend Reports

Events

View Events Video Library

Related

  • A Practical Guide to Using Java Virtual Threads With JMS Listeners
  • Java Enterprise Is Already Ready for the AI Era
  • Orchestration Meets MCP: Building Governed Agentic Workflows With Quarkus Flow and AGENTS.md
  • I Built a Java Version Manager by Fixing Other Tools' Open Bugs

Trending

  • Building an Identity-Aware MCP Server in Python
  • AI-Assisted Development Without Chaos
  • Engineering Production Agentic Systems: Part 3: The Topology
  • Rethinking Java Design Patterns: From OOP to FP
  1. DZone
  2. Coding
  3. Java
  4. Converting the Date to Julian Date Format in Dataweave 2.0 (Mule 4)

Converting the Date to Julian Date Format in Dataweave 2.0 (Mule 4)

The article explains how to change the date using the Dataweave 2.0 code to convert the Date Format ("yyyy-MM-dd") to Julian Date Format.

By 
Abhishek Bathwal user avatar
Abhishek Bathwal
·
Jan. 23, 21 · Tutorial
Likes (1)
Comment
Save
Tweet
Share
9.2K Views

Join the DZone community and get the full member experience.

Join For Free

How to Change the Date

Datawave 2.0 Code:

Java
 




xxxxxxxxxx
1
11


 
1
%dw 2.0
2
output application/json
3
import * from dw::core::Strings
4
fun year(date) = (date as Date).year
5
fun dayOfyear(date) = (date as Date).dayOfYear
6
fun C_value(date)= floor ((year(date) - (1900))/100)
7
fun JulianDate(date) = C_value(date) ++ (year(date) as String) [2 to 3] ++ leftPad(dayOfyear(date),3,"0")
8
---
9
{
10
JulianDate: JulianDate(<Provide some Date>)
11
}



When the current date is provided:

Java
 




x


 
1
Input:
2
now()
3

          
4
Output:
5
{
6
  "JulianDate": "121018"
7
}



When some manual date is provided:

Java
 




x


 
1
Input:
2
{
3
"Date": "2021-01-18"
4
}
5

          
6
Output:
7
{
8
"JulianDate": "121018"
9
}



When provided with the datetime:

Java
 




x


 
1
Input:
2
{
3
"Date": "2021-01-18T19:14:31.566+05:30"
4
}
5

          
6
Output:
7
{
8
"JulianDate": "121018"
9
}



Java (programming language)

Published at DZone with permission of Abhishek Bathwal. See the original article here.

Opinions expressed by DZone contributors are their own.

Related

  • A Practical Guide to Using Java Virtual Threads With JMS Listeners
  • Java Enterprise Is Already Ready for the AI Era
  • Orchestration Meets MCP: Building Governed Agentic Workflows With Quarkus Flow and AGENTS.md
  • I Built a Java Version Manager by Fixing Other Tools' Open Bugs

Partner Resources

×

Comments

The likes didn't load as expected. Please refresh the page and try again.

  • RSS
  • X
  • Facebook

ABOUT US

  • About DZone
  • Support and feedback
  • Community research

ADVERTISE

  • Advertise with DZone

CONTRIBUTE ON DZONE

  • Article Submission Guidelines
  • Become a Contributor
  • Core Program
  • Visit the Writers' Zone

LEGAL

  • Terms of Service
  • Privacy Policy

CONTACT US

  • 3343 Perimeter Hill Drive
  • Suite 215
  • Nashville, TN 37211
  • [email protected]

Let's be friends:

  • RSS
  • X
  • Facebook