content: /*
   * Copyright (c) 2006, 2017, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code 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 General Public License
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  package jdkx.tools;
  
  import jdkx.tools.JavaFileManager.Location;
  
  import java.util.concurrent.*;
  
  /**
   * Standard locations of file objects.
   *
   * @author Peter von der Ah&eacute;
   * @since 1.6
   */
  public enum StandardLocation implements Location {
  
      /**
       * Location of new class files.
       */
      CLASS_OUTPUT,
  
      /**
       * Location of new source files.
       */
      SOURCE_OUTPUT,
  
      /**
       * Location to search for user class files.
       */
      CLASS_PATH,
  
      /**
       * Location to search for existing source files.
       */
      SOURCE_PATH,
  
      /**
       * Location to search for annotation processors.
       */
      ANNOTATION_PROCESSOR_PATH,
  
      /**
       * Location to search for modules containing annotation processors.
       * @since 9
       */
      ANNOTATION_PROCESSOR_MODULE_PATH,
  
      /**
       * Location to search for platform classes.  Sometimes called
       * the boot class path.
       */
      PLATFORM_CLASS_PATH,
  
      /**
       * Location of new native header files.
       * @since 1.8
       */
      NATIVE_HEADER_OUTPUT,
  
      /**
       * Location to search for the source code of modules.
       * @since 9
       */
      MODULE_SOURCE_PATH,
  
      /**
       * Location to search for upgradeable system modules.
       * @since 9
       */
      UPGRADE_MODULE_PATH,
  
      /**
       * Location to search for system modules.
       * @since 9
       */
      SYSTEM_MODULES,
  
      /**
       * Location to search for precompiled user modules.
       * @since 9
       */
      MODULE_PATH,
  
      /**
       * Location to search for module patches.
       * @since 9
       */
      PATCH_MODULE_PATH;
  
      /**
       * Returns a location object with the given name.  The following
       * property must hold: {@code locationFor(x) ==
       * locationFor(y)} if and only if {@code x.equals(y)}.
       * The returned location will be an output location if and only if
       * name ends with {@code "_OUTPUT"}. It will be considered to
       * be a module-oriented location if the name contains the word
       * {@code "MODULE"}.
       *
       * @param name a name
       * @return a location
       *
       * @revised 9
       */
      public static Location locationFor(final String name) {
          if (locations.isEmpty()) {
              // can't use valueOf which throws IllegalArgumentException
              for (Location location : values())
                  locations.putIfAbsent(location.getName(), location);
          }
          name.getClass(); /* null-check */
          locations.putIfAbsent(name, new Location() {
                  @Override
                  public String getName() { return name; }
                  @Override
                  public boolean isOutputLocation() { return name.endsWith("_OUTPUT"); }
              });
          return locations.get(name);
      }
      //where
          private static final ConcurrentMap<String,Location> locations
              = new ConcurrentHashMap<>();
  
      @Override
      public String getName() { return name(); }
  
      @Override
      public boolean isOutputLocation() {
          switch (this) {
              case CLASS_OUTPUT:
              case SOURCE_OUTPUT:
              case NATIVE_HEADER_OUTPUT:
                  return true;
              default:
                  return false;
          }
      }
  
      /**
       * {@inheritDoc}
       * @since 9
       */
      @Override
      public boolean isModuleOrientedLocation() {
          switch (this) {
              case MODULE_SOURCE_PATH:
              case ANNOTATION_PROCESSOR_MODULE_PATH:
              case UPGRADE_MODULE_PATH:
              case SYSTEM_MODULES:
              case MODULE_PATH:
              case PATCH_MODULE_PATH:
                  return true;
              default:
                  return false;
          }
      }
  }
  