Install OpenCv in Linux/Ubuntu for Java Application.

Table Of Contents - Introduction - Download OpenCV - Build OpenCV - Run Sample Example 1. Introduction: In this blog post, we are going to install and set...

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How to Install and configure free SSL/TLS certificate for Tomcat using Let's Encrypt on Ubuntu.

How to set up a free SSL certificate for tomcat using let's encrypt on ubuntu. Table Of Contents 1. Introduction 2. Prerequisites 3. Install certbort and create an SSL certificate ...

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Tunnel local server to the public internet with https using Ngrok.

How to tunnel our local server to the public internet with https using Ngrok. Table Of Contents 1. Introduction 2. Install and setup on windows system 3. Install and setup on linux system 1. Introduction: It seems to be daunting if we need to test our application locally over Https. Generally,...

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Grails 3 Download Saved Documnets/Files (.pdf, .txt, .docx and others) Example.

How to Download different types of files using Grails 3. If you want to use server-side file download for different types of files like pdf, txt, docx etc then there are different ways to do it. We can use ServletOutputStream object for it as below: def download(){ def filePath = "/opt/tomcat/webapps/savedFile/filename.pdf" //I am saving files on tomcat. def...

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Securing Grails Application with Spring Security Rest | Rest API | Grails 3.x

How to Secure Grails Application with Spring Security Rest in Grails 3 Table of Contents - Introduction - Pre-requisites - Create Grails Application - Spring Security Core Plugin Configuration - Spring Security Rest Plugin Configuration - Testing Secured REST API Introduction: In this...

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Splitting resources.groovy configuration in Grails applications

Splitting resources.groovy configuration in Grails applications Table Of Contents1. Introduction 2. How to split resources.groovy 3. Import external bean file 1. Introduction: In grails, when our resources.groovy file is growing then it is better to split some logical bean configuration with a separate file and import that file in resources.groovy.  For this, Grails provides a neat way to...

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How to resolve grails-resolving-server-failed-to-start-for-port-8080-address-already-in-use

On Linux: step1: if your server port already running at port 8080 then, firstly we have to kill this process for this open your terminal and type lsof -w -n -i tcp:8080 which shows all the list of open file which is running at port 8080. if you type lsof -w -n -i tcp:9090 if your server is running with port 9090 which shows all the list of open file which are running at port 9090. Here, lsof...

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Error: ENOENT: no such file or directory, stat '../pancake-swap-periphery/node_modules/@uniswap/v2-core/contracts/interfaces/IPancakeFactory.sol

While trying to do pancake-swap clone, we might get the following issue while building a contract. Error: ENOENT: no such file or directory, stat '../pancake-swap-periphery/node_modules/@uniswap/v2-core/contracts/interfaces/IPancakeFactory.sol' It is due to the file is not found in node modules as suggested in error. If you go to the package.json file you can see the following dependency is injected...

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Modify Dicom file metadata using dcm4che in Java

How to modify Dicom file metadata using dcm4che. Please follow our previous tutorials on dcm4che. Read the Dicom header information using dcm4che in Java Read Dicom file metadata using dcm4che in Java Let's create a sample java class ModifyMetadata.java to modify the available metadata in the given...

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Read Dicom file meatadata using dcm4che in Java

How to read Dicom file metadata using dcm4che in Java. dcm4che is a collection of open-source applications and utilities for the healthcare enterprise application for processing, manipulating, and analysis of medical images. Please follow the tutorial for setting the dcm4che in our java application. Let's create a java class DicomMetadataReader.java to read the available metadata in the given Dicom...

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Read the Dicom header information using dcm4che in Java

In this tutorial, we are going to learn how to get the Dicom file header information using dcm4che. DICOM (Digital Imaging and Communications in Medicine) is the ubiquitous standard in the radiology and cardiology imaging industry for the exchange and management of images and image-related information.For Dicom standard information please visit Dicom Library. Before start writing code we need to use...

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Read the files inside directory(folder) and subdirectory(sub folder) using Java 8+

In this tutorial, we are going to learn how we can read all the files and specific files inside the directory and subdirectory. Let's create a sample class FileReader.java Read all the directory subdirectory and files: public static void main(String[] args) { String directoryPath = "path_to_directory"; try { List<String> allFiles = listFiles(directoryPath); ...

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How to unzip the zip file and zip the folder in Java

In this tutorial, we are going to learn how to zip the given folder and unzip the zip file using Java. Zip the folder or directory: Let's create a java class ZipUnzip.java and create the main method. public static void main(String[] args) { String folderInputPath = "path/of/folder/to/zip"; String outputPath = "output/path/compressed.zip"; try { zip(folderInputPath,...

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Read Dicom Image metadata using PixelMed in Java

In this tutorial, we are going to learn how to get Dicom image metadata using PixelMed toolkit using Java. DICOM (Digital Imaging and Communications in Medicine) is the ubiquitous standard in the radiology and cardiology imaging industry for the exchange and management of images and image-related information. DICOM is also used in other images related medical fields, such as pathology, endoscopy,...

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