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/*
* 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.
*/
import Foundation
public extension TProtocol {
public func readMessageBegin() throws -> (String, TMessageType, Int) {
var name : NSString?
var type : Int32 = -1
var sequenceID : Int32 = -1
try readMessageBeginReturningName(&name, type: &type, sequenceID: &sequenceID)
return (name as String!, TMessageType(rawValue: type)!, Int(sequenceID))
}
public func writeMessageBeginWithName(name: String, type: TMessageType, sequenceID: Int) throws {
try writeMessageBeginWithName(name, type: type.rawValue, sequenceID: Int32(sequenceID))
}
public func readStructBegin() throws -> (String?) {
var name : NSString? = nil
try readStructBeginReturningName(&name)
return (name as String?)
}
public func readFieldBegin() throws -> (String?, TType, Int) {
var name : NSString? = nil
var type : Int32 = -1
var fieldID : Int32 = -1
try readFieldBeginReturningName(&name, type: &type, fieldID: &fieldID)
return (name as String?, TType(rawValue: type)!, Int(fieldID))
}
public func writeFieldBeginWithName(name: String, type: TType, fieldID: Int) throws {
try writeFieldBeginWithName(name, type: type.rawValue, fieldID: Int32(fieldID))
}
public func readMapBegin() throws -> (TType, TType, Int32) {
var keyType : Int32 = -1
var valueType : Int32 = -1
var size : Int32 = 0
try readMapBeginReturningKeyType(&keyType, valueType: &valueType, size: &size)
return (TType(rawValue: keyType)!, TType(rawValue: valueType)!, size)
}
public func writeMapBeginWithKeyType(keyType: TType, valueType: TType, size: Int) throws {
try writeMapBeginWithKeyType(keyType.rawValue, valueType: valueType.rawValue, size: Int32(size))
}
public func readSetBegin() throws -> (TType, Int32) {
var elementType : Int32 = -1
var size : Int32 = 0
try readSetBeginReturningElementType(&elementType, size: &size)
return (TType(rawValue: elementType)!, size)
}
public func writeSetBeginWithElementType(elementType: TType, size: Int) throws {
try writeSetBeginWithElementType(elementType.rawValue, size: Int32(size))
}
public func readListBegin() throws -> (TType, Int32) {
var elementType : Int32 = -1
var size : Int32 = 0
try readListBeginReturningElementType(&elementType, size: &size)
return (TType(rawValue: elementType)!, size)
}
public func writeListBeginWithElementType(elementType: TType, size: Int) throws {
try writeListBeginWithElementType(elementType.rawValue, size: Int32(size))
}
public func writeFieldValue<T: TSerializable>(value: T, name: String, type: TType, id: Int32) throws {
try writeFieldBeginWithName(name, type: type.rawValue, fieldID: id)
try writeValue(value)
try writeFieldEnd()
}
public func readValue<T: TSerializable>() throws -> T {
return try T.readValueFromProtocol(self)
}
public func writeValue<T: TSerializable>(value: T) throws {
try T.writeValue(value, toProtocol: self)
}
public func readResultMessageBegin() throws {
let (_, type, _) = try readMessageBegin();
if type == .EXCEPTION {
let x = try readException()
throw x
}
return
}
public func validateValue(value: Any?, named name: String) throws {
if value == nil {
throw NSError(
domain: TProtocolErrorDomain,
code: Int(TProtocolError.Unknown.rawValue),
userInfo: [TProtocolErrorFieldNameKey: name])
}
}
public func readException() throws -> ErrorType {
var reason : String?
var type = TApplicationError.Unknown
try readStructBegin()
fields: while (true) {
let (_, fieldType, fieldID) = try readFieldBegin()
switch (fieldID, fieldType) {
case (_, .STOP):
break fields
case (1, .STRING):
reason = try readValue() as String
case (2, .I32):
let typeVal = try readValue() as Int32
if let tmp = TApplicationError(rawValue: typeVal) {
type = tmp
}
case let (_, unknownType):
try skipType(unknownType)
}
try readFieldEnd()
}
try readStructEnd()
return NSError(type:type, reason:reason ?? "")
}
public func writeExceptionForMessageName(name: String, sequenceID: Int, ex: NSError) throws {
try writeMessageBeginWithName(name, type: .EXCEPTION, sequenceID: sequenceID)
try ex.write(self)
try writeMessageEnd()
}
public func skipType(type: TType) throws {
try TProtocolUtil.skipType(type.rawValue, onProtocol: self)
}
}
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