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
   *
   *      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.camel.component.salesforce.api.utils;
  
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  public final class Version implements Comparable<Version> {
      private static final Pattern VERSION_PATTERN = Pattern.compile("(\\d+)\\.(\\d+)");
  
      private final int major;
  
      private final int minor;
  
      private Version(final int major, final int minor) {
          this.major = major;
          this.minor = minor;
      }
  
      public static Version create(final String version) {
          final Matcher matcher = VERSION_PATTERN.matcher(version);
          if (!matcher.matches()) {
              throw new IllegalArgumentException("API version needs to be in <number>.<number> format, given: " + version);
          }
  
          final int major = Integer.parseInt(matcher.group(1));
          final int minor = Integer.parseInt(matcher.group(2));
  
          return new Version(major, minor);
      }
  
      @Override
      public int compareTo(final Version other) {
          final int majorCompare = Integer.compare(major, other.major);
  
          if (majorCompare == 0) {
              return Integer.compare(minor, other.minor);
          } else {
              return majorCompare;
          }
      }
  
      @Override
      public boolean equals(final Object obj) {
          if (obj == this) {
              return true;
          }
  
          if (!(obj instanceof Version)) {
              return false;
          }
  
          final Version other = (Version) obj;
  
          return compareTo(other) == 0;
      }
  
      public int getMajor() {
          return major;
      }
  
      public int getMinor() {
          return minor;
      }
  
      @Override
      public int hashCode() {
          return 1 + 31 * (1 + 31 * major) + minor;
      }
  
      @Override
      public String toString() {
          return "v" + major + "." + minor;
      }
  
      public void requireAtLeast(final int requiredMajor, final int requiredMinor) {
          final Version required = new Version(requiredMajor, requiredMinor);
  
          if (this.compareTo(required) < 0) {
              throw new UnsupportedOperationException(
                      "This operation requires API version at least " + requiredMajor + "." + requiredMinor
                                                      + ", currently configured for " + major
                                                      + "." + minor);
          }
      }
  }
  