content: /*
   * Copyright (C) 2012 Facebook, Inc.
   *
   * 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.
   */
  package io.airlift.drift.codec.guice;
  
  import com.google.inject.Binder;
  import com.google.inject.Module;
  import com.google.inject.Scopes;
  import com.google.inject.TypeLiteral;
  import io.airlift.drift.codec.InternalThriftCodec;
  import io.airlift.drift.codec.ThriftCodec;
  import io.airlift.drift.codec.ThriftCodecManager;
  import io.airlift.drift.codec.internal.ForCompiler;
  import io.airlift.drift.codec.internal.ThriftCodecFactory;
  import io.airlift.drift.codec.internal.compiler.CompilerThriftCodecFactory;
  import io.airlift.drift.codec.metadata.ThriftCatalog;
  
  import java.util.Objects;
  
  import static com.google.inject.multibindings.Multibinder.newSetBinder;
  
  public class ThriftCodecModule
          implements Module
  {
      private final ClassLoader parent;
  
      public ThriftCodecModule()
      {
          this(ThriftCodecModule.class.getClassLoader());
      }
  
      public ThriftCodecModule(ClassLoader parent)
      {
          this.parent = parent;
      }
  
      @Override
      public void configure(Binder binder)
      {
          binder.bind(ThriftCodecFactory.class).to(CompilerThriftCodecFactory.class).in(Scopes.SINGLETON);
          binder.bind(ThriftCatalog.class).in(Scopes.SINGLETON);
          binder.bind(ThriftCodecManager.class).in(Scopes.SINGLETON);
          newSetBinder(binder, new TypeLiteral<ThriftCodec<?>>() {}, InternalThriftCodec.class).permitDuplicates();
  
          binder.bind(ClassLoader.class)
                  .annotatedWith(ForCompiler.class)
                  .toInstance(parent);
      }
  
      @Override
      public boolean equals(Object o)
      {
          if (this == o) {
              return true;
          }
          if (o == null || getClass() != o.getClass()) {
              return false;
          }
          ThriftCodecModule that = (ThriftCodecModule) o;
          return Objects.equals(parent, that.parent);
      }
  
      @Override
      public int hashCode()
      {
          return Objects.hash(parent);
      }
  }
  