Using Qat‐Java in a Gradle Project

Using Qat-Java in a Gradle Project

1. Create a directory structure for your project:

   qat_java_example/
   ├── src/
   │   ├── main/
   │   │   └── java/
   │   │       └── com/
   │   │           └── example/
   │   │               └── ByteArrayExample.java
   │   └── test/
   └── build.gradle
   

2. Create ByteArrayExample.java:

   Inside the src/main/java/com/example directory, create a file named ByteArrayExample.java with the following content.

   package com.example;
   
   import com.intel.qat.QatException;
   import com.intel.qat.QatZipper;
   
   public class ByteArrayExample {
     public static void main(String[] args) {
       try {
         String inputStr = "The quick brown fox jumps over the lazy dog.";
         byte[] input = inputStr.getBytes();
   
         // Create a QatZipper object
         QatZipper qzip = new QatZipper();
         
         // Create a buffer with enough size for compression
         byte[] compressedData = new byte[qzip.maxCompressedLength(input.length)];
   
         // Compress the bytes
         int compressedSize = qzip.compress(input, compressedData);
   
         // Decompress the bytes into a String
         byte[] decompressedData = new byte[input.length];
         int decompressedSize = qzip.decompress(compressedData, decompressedData);
   
         // Release resources
         qzip.end();
   
         // Convert the bytes into a String
         String outputStr = new String(decompressedData, 0, decompressedSize);
         System.out.println("Decompressed data: " + outputStr);
       } catch (QatException e) {
         e.printStackTrace();
       }
     }
   }
   

3. Create build.gradle:

   In the root directory of your project, create a file named build.gradle with the following content. The file describes your project and its dependencies.

   apply plugin: 'application'
   
   repositories {
     mavenCentral()
   }
   
   dependencies {
     implementation 'com.intel.qat:qat-java:1.0.0'
   }
   
   application {
     mainClassName = 'com.example.ByteArrayExample'
   }
   

4. Build and Run:

   Open a terminal, navigate to your project directory, and run the following command:

   gradle wrapper
   

   To build and run, use the following commands:

   ./gradlew build
   ./gradlew run
   

   If successful, you should see the below output in your terminal:

   Decompressed data: The quick brown fox jumps over the lazy dog.