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   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
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   *    https://www.apache.org/licenses/LICENSE-2.0
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  package org.apache.cayenne.configuration.osgi;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import org.apache.cayenne.access.DataDomain;
  import org.apache.cayenne.di.Binder;
  import org.apache.cayenne.di.ClassLoaderManager;
  import org.apache.cayenne.di.Module;
  
  /**
   * A DI module that helps to bootstrap Cayenne in OSGi environment.
   * 
   * @since 4.0
   */
  public class OsgiModule implements Module {
  
      private Class<?> typeFromProjectBundle;
      private Map<String, ClassLoader> perTypeClassLoaders;
  
      OsgiModule() {
          this.perTypeClassLoaders = new HashMap<>();
      }
  
      void setTypeFromProjectBundle(Class<?> typeFromProjectBundle) {
          this.typeFromProjectBundle = typeFromProjectBundle;
      }
  
      void putClassLoader(String type, ClassLoader classLoader) {
          perTypeClassLoaders.put(type, classLoader);
      }
  
      @Override
      public void configure(Binder binder) {
          binder.bind(ClassLoaderManager.class).toInstance(createClassLoaderManager());
          binder.bind(DataDomain.class).toProvider(OsgiDataDomainProvider.class);
      }
  
      private ClassLoaderManager createClassLoaderManager() {
          return new OsgiClassLoaderManager(typeFromProjectBundle.getClassLoader(), perTypeClassLoaders);
      }
  }
  