/**
 * 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
 *
 *     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 org.apache.avro;

/**
 * Thrown when {@link SchemaValidator} fails to validate a schema.
 */
public class SchemaValidationException extends Exception {

  public SchemaValidationException(Schema reader, Schema writer) {
    super(getMessage(reader, writer));
  }

  public SchemaValidationException(Schema reader, Schema writer,
      Throwable cause) {
    super(getMessage(reader, writer), cause);
  }

  private static String getMessage(Schema reader, Schema writer) {
    return "Unable to read schema: \n"
        + writer.toString(true) + "\nusing schema:\n" + reader.toString(true);
  }
}
