ClasspathCache.java

package jetbrains.mps.core.tool.environment.classloading;

/*Generated by MPS */

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

public class ClasspathCache {
  private final Map<String, List<Loader>> myClassPackagesCache = new HashMap<String, List<Loader>>();
  private final Map<String, List<Loader>> myResourcePackagesCache = new HashMap<String, List<Loader>>();
  public ClasspathCache() {
  }
  public void addResourceEntry(String resourcePath, Loader loader) {
    final List<Loader> loaders = getLoaders(resourcePath);
    if (!(loaders.contains(loader))) {
      //  TODO Make linked hash set instead? 
      loaders.add(loader);
    }
  }
  public List<Loader> getLoaders(String resourcePath) {
    boolean isClassFile = resourcePath.endsWith(UrlClassLoader.CLASS_EXTENSION);
    final int idx = resourcePath.lastIndexOf('/');
    String packageName = (idx > 0 ? resourcePath.substring(0, idx) : "");
    Map<String, List<Loader>> map = (isClassFile ? myClassPackagesCache : myResourcePackagesCache);
    List<Loader> list = map.get(packageName);
    if (list == null) {
      list = new ArrayList<Loader>(1);
      map.put(packageName, list);
    }
    return list;
  }
}