/*
 * Copyright 1998-2015 University Corporation for Atmospheric Research/Unidata
 *
 *   Portions of this software were developed by the Unidata Program at the
 *   University Corporation for Atmospheric Research.
 *
 *   Access and use of this software shall impose the following obligations
 *   and understandings on the user. The user is granted the right, without
 *   any fee or cost, to use, copy, modify, alter, enhance and distribute
 *   this software, and any derivative works thereof, and its supporting
 *   documentation for any purpose whatsoever, provided that this entire
 *   notice appears in all copies of the software, derivative works and
 *   supporting documentation.  Further, UCAR requests that the user credit
 *   UCAR/Unidata in any publications that result from the use of this
 *   software or in any product that includes this software. The names UCAR
 *   and/or Unidata, however, may not be used in any advertising or publicity
 *   to endorse or promote any products or commercial entity unless specific
 *   written permission is obtained from UCAR/Unidata. The user also
 *   understands that UCAR/Unidata is not obligated to provide the user with
 *   any support, consulting, training or assistance of any kind with regard
 *   to the use, operation and performance of this software nor to provide
 *   the user with any updates, revisions, new versions or "bug fixes."
 *
 *   THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
 *   IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 *   DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
 *   INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
 *   FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 *   NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 *   WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
 */
package thredds.server.catalog;

import net.jcip.annotations.Immutable;
import thredds.client.catalog.Catalog;
import thredds.client.catalog.Dataset;
import thredds.client.catalog.builder.DatasetBuilder;
import ucar.unidata.util.StringUtil2;

import java.net.URI;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * TDS Configuration Catalog
 *
 * @author caron
 * @since 1/15/2015
 */
@Immutable
public class ConfigCatalog extends Catalog {

  private static Map<String, String> alias = new HashMap<>(); // LOOK temp kludge

  public static void addAlias(String aliasKey, String actual) {
    alias.put(aliasKey, StringUtil2.substitute(actual, "\\", "/"));
  }

  public static String translateAlias(String scanDir) {
    for (Map.Entry<String, String> entry : alias.entrySet()) {
      if (scanDir.contains(entry.getKey()))
        return StringUtil2.substitute(scanDir, entry.getKey(), entry.getValue());
    }
    return scanDir;
  }

  /////////////////////////////////////////////////////////////

  public ConfigCatalog(URI baseURI, String name, Map<String, Object> flds, List<DatasetBuilder> datasets) {
    super(baseURI, name, flds, datasets);
  }

  public List<DatasetRootConfig> getDatasetRoots() {
    return (List<DatasetRootConfig>) getLocalFieldAsList(Dataset.DatasetRoots);
  }

  private List getLocalFieldAsList(String fldName) {
    Object value = flds.get(fldName);
    if (value != null) {
      if (value instanceof List) return (List) value;
      List result = new ArrayList(1);
      result.add(value);
      return result;
    }
    return new ArrayList(0);
  }
}