src/main/java/org/apache/fineract/cn/core/data/jpa/core/VersionComparator.java

/*
 * 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.fineract.cn.core.data.jpa.core;

import liquibase.changelog.ChangeSet;

public class VersionComparator {

  private VersionComparator() {
    super();
  }

  public static int compare(final ChangeSet firstChangeSet, final ChangeSet secondChangeSet) {
    final String firstId = firstChangeSet.getId();
    final String secondId = secondChangeSet.getId();

    final String[] splitFirstId = firstId.split("\\.");
    final String[] splitSecondId = secondId.split("\\.");

    int index = 0;

    while (index < splitFirstId.length
        && index < splitSecondId.length
        && splitFirstId[index].equals(splitSecondId[index])) {
      index++;
    }

    if (index < splitFirstId.length && index < splitSecondId.length) {
      return Integer.valueOf(splitFirstId[index]).compareTo(Integer.valueOf(splitSecondId[index]));
    }

    return Integer.valueOf(splitFirstId.length).compareTo(Integer.valueOf(splitSecondId.length));
  }
}