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.metadata;
  
  import io.airlift.drift.annotations.ThriftField;
  
  import java.lang.reflect.Type;
  
  import static com.google.common.base.MoreObjects.toStringHelper;
  import static com.google.common.base.Preconditions.checkArgument;
  import static io.airlift.drift.codec.metadata.FieldKind.THRIFT_FIELD;
  import static io.airlift.drift.codec.metadata.ReflectionHelper.resolveFieldType;
  import static java.util.Objects.requireNonNull;
  
  class ParameterInjection
          extends Injection
  {
      private final int parameterIndex;
      private final String extractedName;
      private final Type parameterJavaType;
      private final Type thriftStructType;
  
      ParameterInjection(Type thriftStructType, int parameterIndex, ThriftField annotation, String extractedName, Type parameterJavaType)
      {
          super(annotation, THRIFT_FIELD);
          this.thriftStructType = thriftStructType;
          requireNonNull(parameterJavaType, "parameterJavaType is null");
  
          this.parameterIndex = parameterIndex;
          this.extractedName = extractedName;
          this.parameterJavaType = parameterJavaType;
          if (void.class.equals(parameterJavaType)) {
              throw new AssertionError();
          }
          checkArgument(getName() != null || extractedName != null, "Parameter must have an explicit name or an extractedName");
      }
  
      public int getParameterIndex()
      {
          return parameterIndex;
      }
  
      @Override
      public String extractName()
      {
          return extractedName;
      }
  
      @Override
      public Type getJavaType()
      {
          return resolveFieldType(thriftStructType, parameterJavaType);
      }
  
      @Override
      public String toString()
      {
          return toStringHelper(this)
                  .add("parameterIndex", parameterIndex)
                  .add("extractedName", extractedName)
                  .add("parameterJavaType", parameterJavaType)
                  .toString();
      }
  }
  