package fr.in2p3.jsaga.impl.context.attrs;
   
   import fr.in2p3.jsaga.impl.attributes.Attribute;
   import fr.in2p3.jsaga.impl.attributes.AttributeScalar;
   import fr.in2p3.jsaga.impl.context.ContextImpl;
   import fr.in2p3.jsaga.impl.monitoring.MetricMode;
   import fr.in2p3.jsaga.impl.monitoring.MetricType;
   import org.ogf.saga.error.*;
   
  import java.util.regex.Pattern;
  
  /* ***************************************************
   * *** Centre de Calcul de l'IN2P3 - Lyon (France) ***
   * ***             http://cc.in2p3.fr/             ***
   * ***************************************************
   * File:   UrlPrefixAttribute
   * Author: Sylvain Reynaud (sreynaud@in2p3.fr)
   * ***************************************************
   * Description:                                      */
  
  /**
   *
   */
  public class UrlPrefixAttribute implements AttributeScalar {
      private static final Pattern PATTERN = Pattern.compile("[\\p{Alpha}][\\p{Alpha}\\p{Digit}-]*");
      private String m_value;
  
      public UrlPrefixAttribute() {
          m_value = null;
      }
  
      public String getKey() {
          return ContextImpl.URL_PREFIX;
      }
  
      public String getDescription() {
          return "by adding this prefix at the beginning of URL, you can use any protocol without configuring it";
      }
  
      public boolean isReadOnly() {
          return false;
      }
  
      public MetricMode getMetricMode() {
          return MetricMode.Final;
      }
  
      public MetricType getMetricType() {
          return MetricType.String;
      }
  
      public Attribute clone() throws CloneNotSupportedException {
          UrlPrefixAttribute clone = new UrlPrefixAttribute();
          clone.m_value = m_value;
          return clone;
      }
  
      public void setValue(String value) throws NotImplementedException, IncorrectStateException, PermissionDeniedException, BadParameterException {
          if (PATTERN.matcher(value).matches()) {
              m_value = value;
          } else {
              throw new BadParameterException("UrlPrefix '"+value+"' does not match regular expression: "+PATTERN.pattern());
          }
      }
  
      public String getValue() throws NotImplementedException, IncorrectStateException, NoSuccessException {
          return m_value;
      }
  }