ResourceUtil.java

package com.sequenceiq.it.util;

import java.io.IOException;

import org.apache.commons.codec.binary.Base64;
import org.springframework.context.ApplicationContext;
import org.springframework.core.io.Resource;
import org.springframework.util.StreamUtils;

public class ResourceUtil {
    private static final int RAWDATA_START = 4;

    private ResourceUtil() {
    }

    public static String readStringFromResource(ApplicationContext applicationContext, String resourceLocation) throws IOException {
        if (resourceLocation.startsWith("raw:")) {
            return resourceLocation.substring(RAWDATA_START);
        } else {
            return new String(readResource(applicationContext, resourceLocation));
        }
    }

    public static String readBase64EncodedContentFromResource(ApplicationContext applicationContext, String resourceLocation) throws IOException {
        if (resourceLocation.startsWith("raw:")) {
            return resourceLocation.substring(RAWDATA_START);
        } else {
            return Base64.encodeBase64String(readResource(applicationContext, resourceLocation));
        }
    }

    public static byte[] readResource(ApplicationContext applicationContext, String resourceLocation) throws IOException {
        Resource resource = applicationContext.getResource(resourceLocation);
        return StreamUtils.copyToByteArray(resource.getInputStream());
    }
}