PDF Publication

Tips and tricks
3

Sample publication using wkhtml2pdf

In this example, we use Docker Compose to install Simplicité + Postgres + wkhtml2pdf

Installing

sudo yum update -y && sudo yum clean all
sudo reboot
sudo yum install -y docker && sudo yum clean all
sudo systemctl enable docker
sudo systemctl start docker
sudo docker login
# copy content in docker-compose.yml shown below
vi docker-compose.yml
sudo docker-compose up -d

docker-compose.yml

version: "3"
services:
  db:
    image: postgres:latest
    restart: always
    container_name: myinstance-postgres-database
    environment:
      POSTGRES_USER: "simplicite"
      POSTGRES_PASSWORD: "simplicite"
      POSTGRES_DB: "simplicite"
    ports:
    - 127.0.0.1:5432:5432
    volumes:
    - myinstance-postgres-db:/var/lib/postgresql/data
  wkhtml2pdf:
    image: openlabs/docker-wkhtmltopdf-aas:latest
    restart: always
  web:
    image: simplicite/platform:latest
    restart: always
    container_name: myinstance-postgres-webapp
    environment:
      DB_SETUP: "true"
      DB_VENDOR: "postgresql"
      DB_HOST: db
      DB_USER: "simplicite"
      DB_PASSWORD: "simplicite"
      DB_NAME: "simplicite"
      DB_WAIT: 10
    ports:
     - 80:8080
    volumes:
    - myinstance-postgres-git:/usr/local/tomcat/webapps/ROOT/WEB-INF/git
    depends_on:
    - db
volumes:
  myinstance-postgres-db:
  myinstance-postgres-git:

Configuration

MyObject
- Publication
  - MyPublication
    - Usage: ...
    - Grantable: no
    - MIME Type: PDF
    - Type: Method
    - Method: pubPdf

Code example

For more information on generating the HTML, see HTML publication using resources

package com.simplicite.objects.Demo;

import java.util.*;
import com.simplicite.util.*;
import com.simplicite.util.tools.*;
import org.json.JSONObject;

/**
 * Business object DemoSupplier
 */
public class DemoSupplier extends ObjectDB {
	private static final long serialVersionUID = 1L;
	
	public byte[] pubPdf(){
		String url = "http://wkhtml2pdf/";
		String user = null;
		String password = null;
		JSONObject postData = new JSONObject();
		postData.put("contents", Tool.toBase64("<html><head><meta charset=\"utf-8\"></head><h1>Simplicité / Docker Compose / wkhtml2pdf</h1><p>...by Simplicité</p></html>"));
		String[] headers = {"Content-Type:application/json"};
		String encoding = Globals.BINARY;
		byte[] pdf = null;
		
		try{
			pdf = Tool.readUrlAsByteArray(url, user, password, postData.toString(), headers, encoding);
		}catch(Exception e){
			AppLog.error(getClass(), "pubPdf", "------------", e, getGrant());
		}
		return pdf;
	}
}