content: package act.app;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2017 ActFramework
   * %%
   * Licensed 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.
   * #L%
   */
  
  import act.conf.AppConfig;
  import org.osgl.$;
  import org.osgl.logging.L;
  import org.osgl.logging.Logger;
  import org.osgl.util.E;
  import org.osgl.util.S;
  
  /**
   * Base class for {@link AppCodeScanner} implementations
   */
  public abstract class AppCodeScannerBase implements AppCodeScanner {
  
      protected static Logger logger = L.get(AppCodeScanner.class);
  
      private App app;
  
      @Override
      public final void setApp(App app) {
          E.NPE(app);
          E.illegalStateIf(null != this.app && this.app != app, "%s has already been stamped", this);
          this.app = app;
          onAppSet();
      }
  
      protected void onAppSet() {}
  
      @Override
      public final boolean start(String className) {
          if (!shouldScan(className)) {
              return false;
          }
          reset();
          reset(className);
          return true;
      }
  
      protected final App app() {
          return app;
      }
  
      protected final AppConfig config() {
          return app().config();
      }
  
      protected abstract void reset();
  
      protected void reset(String className) {}
  
      protected abstract boolean shouldScan(String className);
  
      @Override
      public int hashCode() {
          return $.hc(app, getClass());
      }
  
      @Override
      public boolean equals(Object obj) {
          if (obj == this) {
              return true;
          }
          if (obj instanceof AppCodeScannerBase) {
              AppCodeScannerBase that = (AppCodeScannerBase) obj;
              return (that.app == app && that.getClass() == getClass());
          }
          return false;
      }
  
      @Override
      public String toString() {
          return S.concat(getClass().getName(), "[", app.toString(), "]");
      }
  }
  