org.apache.avro.ValidateLatest Maven / Gradle / Ivy
/*
* 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;
import java.util.Iterator;
/**
*
* A {@link SchemaValidator} for validating the provided schema against the
* first {@link Schema} in the iterable in {@link #validate(Schema, Iterable)}.
*
*
* Uses the {@link SchemaValidationStrategy} provided in the constructor to
* validate the schema against the first Schema in the iterable, if it exists,
* via {@link SchemaValidationStrategy#validate(Schema, Schema)}.
*
*/
public final class ValidateLatest implements SchemaValidator {
private final SchemaValidationStrategy strategy;
/**
* @param strategy The strategy to use for validation of pairwise schemas.
*/
public ValidateLatest(SchemaValidationStrategy strategy) {
this.strategy = strategy;
}
@Override
public void validate(Schema toValidate, Iterable schemasInOrder) throws SchemaValidationException {
Iterator schemas = schemasInOrder.iterator();
if (schemas.hasNext()) {
Schema existing = schemas.next();
strategy.validate(toValidate, existing);
}
}
}