package com.atlassian.scheduler.config;
   
   import com.atlassian.annotations.PublicApi;
   
   import javax.annotation.Nonnull;
   import javax.annotation.Nullable;
   import javax.annotation.concurrent.Immutable;
   import java.util.Objects;
   import java.util.TimeZone;
  
  import static com.atlassian.util.concurrent.Assertions.notNull;
  
  /**
   * The description of a {@link Schedule#forCronExpression(String, TimeZone) cron expression schedule}.
   *
   * @since v1.0
   */
  @Immutable
  @PublicApi
  public final class CronScheduleInfo {
      private final String cronExpression;
      private final TimeZone timeZone;
  
      CronScheduleInfo(String cronExpression, @Nullable TimeZone timeZone) {
          this.cronExpression = notNull("cronExpression", cronExpression);
          this.timeZone = timeZone;
      }
  
  
      @Nonnull
      public String getCronExpression() {
          return cronExpression;
      }
  
      @Nullable
      public TimeZone getTimeZone() {
          return timeZone;
      }
  
  
      @Override
      public boolean equals(@Nullable final Object o) {
          if (this == o) {
              return true;
          }
          if (o == null || getClass() != o.getClass()) {
              return false;
          }
          final CronScheduleInfo other = (CronScheduleInfo) o;
          return cronExpression.equals(other.cronExpression) &&
                  Objects.equals(timeZone, other.timeZone);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(cronExpression, timeZone);
      }
  
      @Override
      public String toString() {
          final String timeZoneId = (timeZone != null) ? timeZone.getID() : null;
          return "CronScheduleInfo[cronExpression='" + cronExpression + "',timeZone=" + timeZoneId + ']';
      }
  }