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# Copyright 2015, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
require_relative './grpc'
# GRPC contains the General RPC module.
module GRPC
# BadStatus is an exception class that indicates that an error occurred at
# either end of a GRPC connection. When raised, it indicates that a status
# error should be returned to the other end of a GRPC connection; when
# caught it means that this end received a status error.
#
# There is also subclass of BadStatus in this module for each GRPC status.
# E.g., the GRPC::Cancelled class corresponds to status CANCELLED.
#
# See
# https://github.com/grpc/grpc/blob/master/include/grpc/impl/codegen/status.h
# for detailed descriptions of each status code.
class BadStatus < StandardError
attr_reader :code, :details, :metadata
include GRPC::Core::StatusCodes
# @param code [Numeric] the status code
# @param details [String] the details of the exception
# @param metadata [Hash] the error's metadata
def initialize(code, details = 'unknown cause', metadata = {})
super("#{code}:#{details}")
@code = code
@details = details
@metadata = metadata
end
# Converts the exception to a GRPC::Status for use in the networking
# wrapper layer.
#
# @return [Status] with the same code and details
def to_status
Struct::Status.new(code, details, @metadata)
end
def self.new_status_exception(code, details = 'unkown cause', metadata = {})
codes = {}
codes[OK] = Ok
codes[CANCELLED] = Cancelled
codes[UNKNOWN] = Unknown
codes[INVALID_ARGUMENT] = InvalidArgument
codes[DEADLINE_EXCEEDED] = DeadlineExceeded
codes[NOT_FOUND] = NotFound
codes[ALREADY_EXISTS] = AlreadyExists
codes[PERMISSION_DENIED] = PermissionDenied
codes[UNAUTHENTICATED] = Unauthenticated
codes[RESOURCE_EXHAUSTED] = ResourceExhausted
codes[FAILED_PRECONDITION] = FailedPrecondition
codes[ABORTED] = Aborted
codes[OUT_OF_RANGE] = OutOfRange
codes[UNIMPLEMENTED] = Unimplemented
codes[INTERNAL] = Internal
codes[UNIMPLEMENTED] = Unimplemented
codes[UNAVAILABLE] = Unavailable
codes[DATA_LOSS] = DataLoss
if codes[code].nil?
BadStatus.new(code, details, metadata)
else
codes[code].new(details, metadata)
end
end
end
# GRPC status code corresponding to status OK
class Ok < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::OK, details, metadata)
end
end
# GRPC status code corresponding to status CANCELLED
class Cancelled < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::CANCELLED, details, metadata)
end
end
# GRPC status code corresponding to status UNKNOWN
class Unknown < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::UNKNOWN, details, metadata)
end
end
# GRPC status code corresponding to status INVALID_ARGUMENT
class InvalidArgument < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::INVALID_ARGUMENT, details, metadata)
end
end
# GRPC status code corresponding to status DEADLINE_EXCEEDED
class DeadlineExceeded < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::DEADLINE_EXCEEDED, details, metadata)
end
end
# GRPC status code corresponding to status NOT_FOUND
class NotFound < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::NOT_FOUND, details, metadata)
end
end
# GRPC status code corresponding to status ALREADY_EXISTS
class AlreadyExists < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::ALREADY_EXISTS, details, metadata)
end
end
# GRPC status code corresponding to status PERMISSION_DENIED
class PermissionDenied < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::PERMISSION_DENIED, details, metadata)
end
end
# GRPC status code corresponding to status UNAUTHENTICATED
class Unauthenticated < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::UNAUTHENTICATED, details, metadata)
end
end
# GRPC status code corresponding to status RESOURCE_EXHAUSTED
class ResourceExhausted < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::RESOURCE_EXHAUSTED, details, metadata)
end
end
# GRPC status code corresponding to status FAILED_PRECONDITION
class FailedPrecondition < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::FAILED_PRECONDITION, details, metadata)
end
end
# GRPC status code corresponding to status ABORTED
class Aborted < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::ABORTED, details, metadata)
end
end
# GRPC status code corresponding to status OUT_OF_RANGE
class OutOfRange < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::OUT_OF_RANGE, details, metadata)
end
end
# GRPC status code corresponding to status UNIMPLEMENTED
class Unimplemented < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::UNIMPLEMENTED, details, metadata)
end
end
# GRPC status code corresponding to status INTERNAL
class Internal < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::INTERNAL, details, metadata)
end
end
# GRPC status code corresponding to status UNAVAILABLE
class Unavailable < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::UNAVAILABLE, details, metadata)
end
end
# GRPC status code corresponding to status DATA_LOSS
class DataLoss < BadStatus
def initialize(details = 'unknown cause', metadata = {})
super(Core::StatusCodes::DATA_LOSS, details, metadata)
end
end
end
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