content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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
   *
   *     https://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 org.apache.avro;
  
  /**
   * <p>
   * A Builder for creating SchemaValidators.
   * </p>
   */
  public final class SchemaValidatorBuilder {
    private SchemaValidationStrategy strategy;
  
    public SchemaValidatorBuilder strategy(SchemaValidationStrategy strategy) {
      this.strategy = strategy;
      return this;
    }
  
    /**
     * Use a strategy that validates that a schema can be used to read existing
     * schema(s) according to the Avro default schema resolution.
     */
    public SchemaValidatorBuilder canReadStrategy() {
      this.strategy = new ValidateCanRead();
      return this;
    }
  
    /**
     * Use a strategy that validates that a schema can be read by existing schema(s)
     * according to the Avro default schema resolution.
     */
    public SchemaValidatorBuilder canBeReadStrategy() {
      this.strategy = new ValidateCanBeRead();
      return this;
    }
  
    /**
     * Use a strategy that validates that a schema can read existing schema(s), and
     * vice-versa, according to the Avro default schema resolution.
     */
    public SchemaValidatorBuilder mutualReadStrategy() {
      this.strategy = new ValidateMutualRead();
      return this;
    }
  
    public SchemaValidator validateLatest() {
      valid();
      return new ValidateLatest(strategy);
    }
  
    public SchemaValidator validateAll() {
      valid();
      return new ValidateAll(strategy);
    }
  
    private void valid() {
      if (null == strategy) {
        throw new AvroRuntimeException("SchemaValidationStrategy not specified in builder");
      }
    }
  
  }
  