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 com.google.errorprone.annotations.Immutable;
  
  import java.lang.reflect.Field;
  
  import static com.google.common.base.MoreObjects.toStringHelper;
  import static com.google.common.base.Preconditions.checkArgument;
  import static java.util.Objects.requireNonNull;
  
  @Immutable
  public class ThriftFieldInjection
          implements ThriftInjection
  {
      private final short id;
      private final String name;
      private final Field field;
      private final FieldKind fieldKind;
  
      public ThriftFieldInjection(short id, String name, Field field, FieldKind fieldKind)
      {
          this.name = requireNonNull(name, "name is null");
          this.field = requireNonNull(field, "field is null");
          this.fieldKind = requireNonNull(fieldKind, "fieldKind is null");
  
          switch (fieldKind) {
              case THRIFT_FIELD:
                  // Nothing to check
                  break;
              case THRIFT_UNION_ID:
                  checkArgument(id == Short.MIN_VALUE, "fieldId must be Short.MIN_VALUE for thrift_union_id");
                  break;
          }
  
          this.id = id;
      }
  
      @Override
      public FieldKind getFieldKind()
      {
          return fieldKind;
      }
  
      @Override
      public short getId()
      {
          return id;
      }
  
      @Override
      public String getName()
      {
          return name;
      }
  
      public Field getField()
      {
          return field;
      }
  
      @Override
      public String toString()
      {
          return toStringHelper(this)
                  .add("id", id)
                  .add("name", name)
                  .add("field", field)
                  .add("fieldKind", fieldKind)
                  .toString();
      }
  }
  