Java Code Examples for org.apache.qpid.proton.amqp.Symbol#equals()

/**
 * Given an ErrorCondition instance create a new Exception that best matches
 * the error type that indicates a non-fatal error usually at the link level
 * such as link closed remotely or link create failed due to security access
 * issues.
 *
 * @param provider
 * 		the AMQP provider instance that originates this exception
 * @param endpoint
 *      The target of the error.
 * @param errorCondition
 *      The ErrorCondition returned from the remote peer.
 *
 * @return a new Exception instance that best matches the ErrorCondition value.
 */
public static ProviderException convertToNonFatalException(AmqpProvider provider, Endpoint endpoint, ErrorCondition errorCondition) {
    ProviderException remoteError = null;

    if (errorCondition != null && errorCondition.getCondition() != null) {
        Symbol error = errorCondition.getCondition();
        String message = extractErrorMessage(errorCondition);

        if (error.equals(AmqpError.UNAUTHORIZED_ACCESS)) {
            remoteError = new ProviderSecurityException(message);
        } else if (error.equals(AmqpError.RESOURCE_LIMIT_EXCEEDED)) {
            remoteError = new ProviderResourceAllocationException(message);
        } else if (error.equals(AmqpError.NOT_FOUND)) {
            remoteError = new ProviderInvalidDestinationException(message);
        } else if (error.equals(TransactionErrors.TRANSACTION_ROLLBACK)) {
            remoteError = new ProviderTransactionRolledBackException(message);
        } else {
            remoteError = new ProviderException(message);
        }
    } else if (remoteError == null) {
        remoteError = new ProviderException("Unknown error from remote peer");
    }

    return remoteError;
}
 

/**
 * Search for a given Symbol in a given array of Symbol object.
 *
 * @param symbols the set of Symbols to search.
 * @param key     the value to try and find in the Symbol array.
 * @return true if the key is found in the given Symbol array.
 */
public static boolean contains(Symbol[] symbols, Symbol key) {
   if (symbols == null || symbols.length == 0) {
      return false;
   }

   for (Symbol symbol : symbols) {
      if (symbol.equals(key)) {
         return true;
      }
   }

   return false;
}
 

private static boolean hasCapabilities(Symbol symbol, Source source) {
   if (source != null) {
      if (source.getCapabilities() != null) {
         for (Symbol cap : source.getCapabilities()) {
            if (symbol.equals(cap)) {
               return true;
            }
         }
      }
   }
   return false;
}
 

private static boolean hasRemoteDesiredCapability(Link link, Symbol capability) {
   Symbol[] remoteDesiredCapabilities = link.getRemoteDesiredCapabilities();
   if (remoteDesiredCapabilities != null) {
      for (Symbol cap : remoteDesiredCapabilities) {
         if (capability.equals(cap)) {
            return true;
         }
      }
   }
   return false;
}
 

/**
 * Search for a given Symbol in a given array of Symbol object.
 *
 * @param symbols the set of Symbols to search.
 * @param key     the value to try and find in the Symbol array.
 * @return true if the key is found in the given Symbol array.
 */
public static boolean contains(Symbol[] symbols, Symbol key) {
   if (symbols == null || symbols.length == 0) {
      return false;
   }

   for (Symbol symbol : symbols) {
      if (symbol.equals(key)) {
         return true;
      }
   }

   return false;
}
 

/**
 * Given an ErrorCondition instance create a new Exception that best matches
 * the error type that indicates the connection creation failed for some reason.
 *
 * @param provider
 * 		the AMQP provider instance that originates this exception
 * @param endpoint
 *      The target of the error.
 * @param errorCondition
 *      The ErrorCondition returned from the remote peer.
 *
 * @return a new Exception instance that best matches the ErrorCondition value.
 */
public static ProviderConnectionRemotelyClosedException convertToConnectionClosedException(AmqpProvider provider, Endpoint endpoint, ErrorCondition errorCondition) {
    ProviderConnectionRemotelyClosedException remoteError = null;

    if (errorCondition != null && errorCondition.getCondition() != null) {
        Symbol error = errorCondition.getCondition();
        String message = extractErrorMessage(errorCondition);

        if (error.equals(AmqpError.UNAUTHORIZED_ACCESS)) {
            remoteError = new ProviderConnectionSecurityException(message);
        } else if (error.equals(AmqpError.RESOURCE_LIMIT_EXCEEDED)) {
            remoteError = new ProviderConnectionResourceAllocationException(message);
        } else if (error.equals(ConnectionError.CONNECTION_FORCED)) {
            remoteError = new ProviderConnectionRemotelyClosedException(message);
        } else if (error.equals(AmqpError.NOT_FOUND)) {
            remoteError = new ProviderConnectionResourceNotFoundException(message);
        } else if (error.equals(ConnectionError.REDIRECT)) {
            remoteError = createRedirectException(provider, error, message, errorCondition);
        } else if (error.equals(AmqpError.INVALID_FIELD)) {
            Map<?, ?> info = errorCondition.getInfo();
            if (info != null && CONTAINER_ID.equals(info.get(INVALID_FIELD))) {
                remoteError = new ProviderInvalidClientIDException(message);
            } else {
                remoteError = new ProviderConnectionRemotelyClosedException(message);
            }
        } else {
            remoteError = new ProviderConnectionRemotelyClosedException(message);
        }
    } else if (remoteError == null) {
        remoteError = new ProviderConnectionRemotelyClosedException("Unknown error from remote peer");
    }

    return remoteError;
}
 

/**
 * Check whether the content-type field of the properties section (if present) in
 * the given message matches the provided string (where null matches if there is
 * no content type present.
 *
 * @param contentType
 *        content type string to compare against, or null if none
 * @param messageContentType
 *        the content type value read from an AMQP message object.
 *
 * @return true if content type matches
 */
public static boolean isContentType(Symbol contentType, Symbol messageContentType) {
    if (contentType == null) {
        return messageContentType == null;
    } else if (messageContentType == null) {
        return false;
    } else {
        return contentType.equals(messageContentType);
    }
}