de.dfki.asr.compass.web.util.ResourceLoader.java Source code

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Here is the source code for de.dfki.asr.compass.web.util.ResourceLoader.java

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/*
 * This file is part of COMPASS. It is subject to the license terms in
 * the LICENSE file found in the top-level directory of this distribution.
 * (Also available at http://www.apache.org/licenses/LICENSE-2.0.txt)
 * You may not use this file except in compliance with the License.
 */
package de.dfki.asr.compass.web.util;

import de.dfki.asr.compass.cdi.qualifiers.Initialized;
import java.io.IOException;
import java.io.InputStream;
import java.io.Serializable;
import javax.inject.Inject;
import javax.servlet.ServletContext;
import org.apache.commons.io.IOUtils;

/**
 * Used to load resources from any of the resource folders in the project.
 */
public class ResourceLoader implements Serializable {

    private static final long serialVersionUID = -2999625711407715213L;

    @Inject
    @Initialized
    private ServletContext context;

    public String getResourceAsString(String resourceName) throws IOException {
        InputStream resourceStream = getResourceAsStream(resourceName);
        try {
            return IOUtils.toString(resourceStream);
        } catch (IOException e) {
            throw e;
        } finally {
            IOUtils.closeQuietly(resourceStream);
        }
    }

    public InputStream getResourceAsStream(String resourceName) throws IOException {
        InputStream resourceStream = context.getResourceAsStream("/" + resourceName);
        if (resourceStream == null) {
            throw new IOException("Cannot find resource: " + resourceName);
        }
        return resourceStream;
    }
}