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path: root/lib/cocoa/src/TApplicationException.m
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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 "TApplicationException.h"
#import "TProtocolUtil.h"

@implementation TApplicationException

- (id) initWithType: (int) type
             reason: (NSString *) reason
{
  mType = type;

  NSString * name;
  switch (type) {
  case TApplicationException_UNKNOWN_METHOD:
    name = @"Unknown method";
    break;
  case TApplicationException_INVALID_MESSAGE_TYPE:
    name = @"Invalid message type";
    break;
  case TApplicationException_WRONG_METHOD_NAME:
    name = @"Wrong method name";
    break;
  case TApplicationException_BAD_SEQUENCE_ID:
    name = @"Bad sequence ID";
    break;
  case TApplicationException_MISSING_RESULT:
    name = @"Missing result";
    break;
  default:
    name = @"Unknown";
    break;
  }

  self = [super initWithName: name reason: reason userInfo: nil];
  return self;
}


+ (TApplicationException *) read: (id <TProtocol>) protocol
{
  NSString * reason = nil;
  int type = TApplicationException_UNKNOWN;
  int fieldType;
  int fieldID;

  [protocol readStructBeginReturningName: NULL];

  while (true) {
    [protocol readFieldBeginReturningName: NULL
              type: &fieldType
              fieldID: &fieldID];
    if (fieldType == TType_STOP) {
      break;
    }
    switch (fieldID) {
    case 1:
      if (fieldType == TType_STRING) {
        reason = [protocol readString];
      } else {
        [TProtocolUtil skipType: fieldType onProtocol: protocol];
      }
      break;
    case 2:
      if (fieldType == TType_I32) {
        type = [protocol readI32];
      } else {
        [TProtocolUtil skipType: fieldType onProtocol: protocol];
      }
      break;
    default:
      [TProtocolUtil skipType: fieldType onProtocol: protocol];
      break;
    }
    [protocol readFieldEnd];
  }
  [protocol readStructEnd];

  return [TApplicationException exceptionWithType: type reason: reason];
}


- (void) write: (id <TProtocol>) protocol
{
  [protocol writeStructBeginWithName: @"TApplicationException"];

  if ([self reason] != nil) {
    [protocol writeFieldBeginWithName: @"message"
                 type: TType_STRING
                 fieldID: 1];
    [protocol writeString: [self reason]];
    [protocol writeFieldEnd];
  }

  [protocol writeFieldBeginWithName: @"type"
               type: TType_I32
               fieldID: 2];
  [protocol writeI32: mType];
  [protocol writeFieldEnd];

  [protocol writeFieldStop];
  [protocol writeStructEnd];
}


+ (TApplicationException *) exceptionWithType: (int) type
                                      reason: (NSString *) reason
{
  return [[[TApplicationException alloc] initWithType: type
                                         reason: reason] autorelease];
}

@end