/*
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 *
 * The Apereo Foundation licenses this file to you under the Educational
 * Community License, Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of the License
 * at:
 *
 *   http://opensource.org/licenses/ecl2.txt
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations under
 * the License.
 *
 */

package org.opencastproject.adminui.util;

import org.opencastproject.adminui.exception.IllegalPathException;

import org.osgi.framework.Bundle;

import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;

/**
 * Uses the bundle for finding files in the bundle's classpath.
 *
 * @author ademasi
 *
 */
public class ClassPathInspector implements PathInspector {
  private Bundle bundle;

  public ClassPathInspector() {
  };

  public ClassPathInspector(Bundle bundle) {
    this.bundle = bundle;
  }

  @Override
  public List<String> listFiles(String path) throws IllegalPathException {
    Enumeration<?> entries = bundle.findEntries(path, "*", false);
    return toList(entries);
  }

  private List<String> toList(Enumeration<?> entries) {
    List<String> result = new ArrayList<String>();
    while (entries.hasMoreElements()) {
      URL file = (URL) entries.nextElement();
    }
    return result;
  }
}
