Java Resource Load getResourceAsBytes(ClassLoader classLoader, String resourcePath)

Description

Return resource as byte array.

License

Open Source License

Parameter

Parameter	Description
classLoader	e.g. obj.getClass().getClassLoader();
resourcePath	e.g. "com/wilutions/officeaddin/RibbonManifest.xml"

Exception

Parameter	Description
IOException	an exception

Return

Resource content.

Declaration

public static byte[] getResourceAsBytes(ClassLoader classLoader, String resourcePath) throws IOException 

Method Source Code

//package com.java2s;
/*//from w w  w. j  a v a 2 s  .  co  m
Copyright (c) 2014 Wolfgang Imig
    
This file is part of the library "Java Add-in for Microsoft Office".
    
This file must be used according to the terms of   
      
  MIT License, http://opensource.org/licenses/MIT
    
 */

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

public class Main {
    /**
     * Return resource as byte array.
     * 
     * @param classLoader
     *            e.g. obj.getClass().getClassLoader();
     * @param resourcePath
     *            e.g. "com/wilutions/officeaddin/RibbonManifest.xml"
     * @return Resource content.
     * @throws IOException
     */
    public static byte[] getResourceAsBytes(ClassLoader classLoader, String resourcePath) throws IOException {
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        InputStream is = null;
        try {
            is = classLoader.getResourceAsStream(resourcePath);

            if (is == null)
                throw new IOException("Resource " + resourcePath + " not found.");
            byte[] buf = new byte[1000];
            int len = 0;
            while ((len = is.read(buf)) != -1) {
                bos.write(buf, 0, len);
            }
        } finally {
            if (is != null) {
                try {
                    is.close();
                } catch (IOException e) {
                }
            }
        }

        return bos.toByteArray();
    }

    /**
     * Return resource as byte array.
     * @param forClass Class object that defines the package of the resourceName.
     * @param resourceName Name of the resource relative to the package of forClass.
     * @return Resource object.
     * @throws IOException
     */
    public static byte[] getResourceAsBytes(Class<?> forClass, String resourceName) throws IOException {
        ClassLoader classLoader = forClass.getClassLoader();
        String resourcePath = forClass.getPackage().getName().replace('.', '/') + "/" + resourceName;
        return getResourceAsBytes(classLoader, resourcePath);
    }
}

Related

1. getResourceAsBufferedReader(Class clazz, String resourceName)
2. getResourceAsByteArray(Object context, String resourceName)
3. getResourceAsByteArray(String url)
4. getResourceAsBytes(Class cl, String resname)
5. getResourceAsBytes(Class testClass, String resourceName)
6. getResourceAsBytes(String path, ClassLoader loader)
7. getResourceAsBytes(String url)
8. getResourceAsFile(String path)
9. getResourceAsFile(String resourceName)