org.eclipse.packagedrone.repo.aspect.PropertiesHelper.java Source code

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Here is the source code for org.eclipse.packagedrone.repo.aspect.PropertiesHelper.java

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/*******************************************************************************
 * Copyright (c) 2015 IBH SYSTEMS GmbH.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBH SYSTEMS GmbH - initial API and implementation
 *******************************************************************************/
package org.eclipse.packagedrone.repo.aspect;

import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.nio.charset.StandardCharsets;

import org.osgi.framework.Bundle;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.io.CharStreams;

public final class PropertiesHelper {

    private final static Logger logger = LoggerFactory.getLogger(PropertiesHelper.class);

    private PropertiesHelper() {
    }

    public static String loadUrl(final Bundle bundle, final String descUrl) {
        if (descUrl == null) {
            return null;
        }

        final URL url = bundle.getEntry(descUrl);
        if (url == null) {
            return null;
        }

        try (Reader reader = new InputStreamReader(url.openStream(), StandardCharsets.UTF_8)) {
            return CharStreams.toString(reader);
        } catch (final Exception e) {
            logger.info("Failed to load url", e);
        }
        return null;
    }
}