/*
 * Copyright (c) 2005-2016 Vincent Vandenschrick. All rights reserved.
 *
 *  This file is part of the Jspresso framework.
 *
 *  Jspresso is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Jspresso is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with Jspresso.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.jspresso.framework.util.resources;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

import org.jspresso.framework.util.url.UrlHelper;

/**
 * An URL resource.
 *
 * @author Vincent Vandenschrick
 */
public class UrlResource extends AbstractResource {

  private final URL url;

  /**
   * Constructs a new {@code UrlResource} instance.
   *
   * @param mimeType
   *          the resource mime type.
   * @param urlSpec
   *          the url spec.
   */
  public UrlResource(String mimeType, String urlSpec) {
    super(mimeType);
    url = UrlHelper.createURL(urlSpec);
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public InputStream getContent() throws IOException {
    return url.openStream();
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public String getName() {
    String path = url.getPath();
    if (path != null && path.indexOf("/") > 0) {
      path = path.substring(path.lastIndexOf("/"));
    }
    return path;
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public long getSize() {
    return -1; // unknown.
  }
}