JAVA : How to convert YAML Documents to JSON List?


Here is code to convert YAML documents to JSON objects by Jackson and snakeyml apis. Jackson also support YAML support.

Pre-Requisite



        <dependencies>
        <!-- Jackson JSON Processor -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.4.1</version>
        </dependency>
        <!-- For YAML -->
        <dependency>
            <groupId>org.yaml</groupId>
            <artifactId>snakeyaml</artifactId>
            <version>1.21</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.dataformat</groupId>
            <artifactId>jackson-dataformat-yaml</artifactId>
            <version>2.1.2</version>
        </dependency>
    </dependencies>   

Sample YAML Documents File


---
# My personal record
name: Saurabh Kumar Gupta
Title: Sr. Project Lead
skill: JAVA/J2EE
employed: True
domains:
    - Telecom
    - Finance
    - Banking
    - Healthcare
languages:
    ELK: Medium
    JAVA: Expertize
    Scripting: Comfortable
education: |
    MCA
    B.Sc
    Diploma

---
# Gaurav personal record
name: Gaurav Gupta
Title: Project Lead
skill: ELK
employed: True
domains:
    - Telecom
    - Banking
    - Healthcare
languages:
    ELK: Medium
    JAVA: Expertize
    Scripting: Comfortable
    Bigdata: Expertize
education: |
    MCA
    B.Sc

Code to Convert YAML documents to JSON Objects

package com.fiot.examples.yaml;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.Iterator;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.SafeConstructor;

public class ConvertYAMLObjectsToJSON {
	public static void main(String[] args) {
		try (InputStream input = new FileInputStream(new File(
				"F:\\Workspace-Blog\\TestExamples\\src\\main\\resources\\YAMLDocument2.yaml"))) {
			Yaml yaml = new Yaml(new SafeConstructor());
			Iterator iterator = yaml.loadAll(input).iterator();
			while (iterator.hasNext()) {
				System.out.println(iterator.next());
			}
		} catch (Throwable e) {
			System.out.println("ERROR: " + e.getMessage());
		}
	}
}

Output


{name=Saurabh Kumar Gupta, Title=Sr. Project Lead, skill=JAVA/J2EE, employed=true, domains=[Telecom, Finance, Banking, Healthcare], languages={ELK=Medium, JAVA=Expertize, Scripting=Comfortable}, education=MCA
B.Sc
Diploma
}
{name=Gaurav Gupta, Title=Project Lead, skill=ELK, employed=true, domains=[Telecom, Banking, Healthcare], languages={ELK=Medium, JAVA=Expertize, Scripting=Comfortable, Bigdata=Expertize}, education=MCA
B.Sc}

More

To know more about YAML Syntax, Configuration with Java and other supporting language, frameworks and tools, Sample configuration files and JSON and YAML conversion follow below YAML Tutorials and YAML related exceptions follow YAML Issues.

Advertisements

About Saurabh Gupta

My Name is Saurabh Gupta, I have approx. 11 Year of experience in Information Technology World manly in Java/J2EE. During this time I have worked with multiple organization with different client, so many technology, frameworks etc.
This entry was posted in Java, JSON, Uncategorized, YAML and tagged , , , , , . Bookmark the permalink.

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

w

Connecting to %s