content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache 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://www.apache.org/licenses/LICENSE-2.0
   *
   * 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.apache.bookkeeper.discover;
  
  import java.util.concurrent.ConcurrentHashMap;
  import org.apache.bookkeeper.bookie.BookieException;
  import org.apache.bookkeeper.net.BookieId;
  import org.apache.bookkeeper.versioning.LongVersion;
  import org.apache.bookkeeper.versioning.Version;
  import org.apache.bookkeeper.versioning.Versioned;
  
  /**
   * Mock implementation of RegistrationManager.
   */
  public class MockRegistrationManager implements RegistrationManager {
      private final ConcurrentHashMap<BookieId, Versioned<byte[]>> cookies = new ConcurrentHashMap<>();
  
      @Override
      public void close() {}
  
      @Override
      public String getClusterInstanceId() throws BookieException {
          return "mock-cluster";
      }
  
      @Override
      public void registerBookie(BookieId bookieId, boolean readOnly,
                                 BookieServiceInfo serviceInfo) throws BookieException {
          throw new UnsupportedOperationException("Not implemented in mock. Implement if you need it");
      }
  
      @Override
      public void unregisterBookie(BookieId bookieId, boolean readOnly) throws BookieException {
          throw new UnsupportedOperationException("Not implemented in mock. Implement if you need it");
      }
  
      @Override
      public boolean isBookieRegistered(BookieId bookieId) throws BookieException {
          throw new UnsupportedOperationException("Not implemented in mock. Implement if you need it");
      }
  
      @Override
      public void writeCookie(BookieId bookieId, Versioned<byte[]> cookieData) throws BookieException {
          try {
              cookies.compute(bookieId, (bookieId1, current) -> {
                      if (cookieData.getVersion() == Version.NEW) {
                          if (current == null) {
                              return new Versioned<byte[]>(cookieData.getValue(), new LongVersion(1));
                          } else {
                              throw new RuntimeException(new BookieException.CookieExistException(bookieId.getId()));
                          }
                      } else {
                          if (current != null
                              && cookieData.getVersion().equals(current.getVersion())) {
                              LongVersion oldVersion = (LongVersion) current.getVersion();
                              LongVersion newVersion = new LongVersion(oldVersion.getLongVersion() + 1);
                              return new Versioned<byte[]>(cookieData.getValue(), newVersion);
                          } else {
                              throw new RuntimeException(new BookieException.CookieExistException(bookieId.getId()));
                          }
                      }
                  });
          } catch (RuntimeException e) {
              if (e.getCause() instanceof BookieException) {
                  throw (BookieException) e.getCause();
              }
          }
      }
  
      @Override
      public Versioned<byte[]> readCookie(BookieId bookieId) throws BookieException {
          Versioned<byte[]> cookie = cookies.get(bookieId);
          if (cookie == null) {
              throw new BookieException.CookieNotFoundException(bookieId.toString());
          }
          return cookie;
      }
  
      @Override
      public void removeCookie(BookieId bookieId, Version version) throws BookieException {
          try {
              cookies.compute(bookieId, (bookieId1, current) -> {
                      if (current == null) {
                          throw new RuntimeException(new BookieException.CookieNotFoundException(bookieId.toString()));
                      } else if (current.getVersion().equals(version)) {
                          return null;
                      } else {
                          throw new RuntimeException(new BookieException.MetadataStoreException("Bad version"));
                      }
                  });
          } catch (RuntimeException e) {
              if (e.getCause() instanceof BookieException) {
                  throw (BookieException) e.getCause();
              }
          }
  
      }
  
      @Override
      public boolean prepareFormat() throws Exception {
          throw new UnsupportedOperationException("Not implemented in mock. Implement if you need it");
      }
  
      @Override
      public boolean initNewCluster() throws Exception {
          throw new UnsupportedOperationException("Not implemented in mock. Implement if you need it");
      }
  
      @Override
      public boolean format() throws Exception {
          throw new UnsupportedOperationException("Not implemented in mock. Implement if you need it");
      }
  
      @Override
      public boolean nukeExistingCluster() throws Exception {
          throw new UnsupportedOperationException("Not implemented in mock. Implement if you need it");
      }
  
      @Override
      public void addRegistrationListener(RegistrationListener listener) {
          throw new UnsupportedOperationException("Not implemented in mock. Implement if you need it");
      }
  }
  