// This source code is dual-licensed under the Mozilla Public License ("MPL"),
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// version 1.1 and the Apache License ("ASL"), version 2.0.
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//
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// The ASL v2.0:
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//
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// ---------------------------------------------------------------------------
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// Copyright 2016 Pivotal Software, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ---------------------------------------------------------------------------
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//
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// The MPL v1.1:
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//
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// ---------------------------------------------------------------------------
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// The contents of this file are subject to the Mozilla Public License
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// Version 1.1 (the "License"); you may not use this file except in
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// compliance with the License. You may obtain a copy of the License at
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// https://www.mozilla.org/MPL/
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//
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// Software distributed under the License is distributed on an "AS IS"
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// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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// License for the specific language governing rights and limitations
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// under the License.
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//
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// The Original Code is RabbitMQ
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//
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// The Initial Developer of the Original Code is Pivotal Software, Inc.
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// All Rights Reserved.
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//
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// Alternatively, the contents of this file may be used under the terms
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// of the Apache Standard license (the "ASL License"), in which case the
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// provisions of the ASL License are applicable instead of those
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// above. If you wish to allow use of your version of this file only
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// under the terms of the ASL License and not to allow others to use
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// your version of this file under the MPL, indicate your decision by
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// deleting the provisions above and replace them with the notice and
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// other provisions required by the ASL License. If you do not delete
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// the provisions above, a recipient may use your version of this file
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// under either the MPL or the ASL License.
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// ---------------------------------------------------------------------------
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#import "RMQFrame.h"
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#import "RMQMethodDecoder.h"
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#import "RMQHeartbeat.h"
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NSUInteger const RMQFrameMax = 131072;
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NSInteger const RMQEmptyFrameSize = 8;
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@interface RMQFrame ()
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@property (nonatomic, copy, readwrite) NSNumber *channelNumber;
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@property (nonatomic, readwrite) id<RMQPayload> payload;
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@end
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@implementation RMQFrame
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- (instancetype)initWithChannelNumber:(NSNumber *)channelNumber
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payload:(id<RMQPayload>)payload {
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self = [super init];
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if (self) {
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self.channelNumber = channelNumber;
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self.payload = payload;
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}
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return self;
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}
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- (instancetype)initWithParser:(RMQParser *)parser {
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char typeID = [parser parseOctet];
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NSNumber *channelNumber = @([parser parseShortUInt]);
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UInt32 payloadSize = [parser parseLongUInt];
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id <RMQPayload> payload;
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switch (typeID) {
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case RMQFrameTypeContentHeader:
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payload = [[RMQContentHeader alloc] initWithParser:parser];
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break;
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case RMQFrameTypeContentBody:
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payload = [[RMQContentBody alloc] initWithParser:parser payloadSize:payloadSize];
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break;
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case RMQFrameTypeHeartbeat:
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payload = [RMQHeartbeat new];
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break;
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default:
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payload = [[[RMQMethodDecoder alloc] initWithParser:parser] decode];
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break;
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}
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return [self initWithChannelNumber:channelNumber payload:payload];
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}
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- (NSData *)amqEncoded {
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NSMutableData *frameData = [NSMutableData new];
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NSArray *unencodedFrame = @[[[RMQOctet alloc] init:self.payload.frameTypeID.integerValue],
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[[RMQShort alloc] init:self.channelNumber.integerValue],
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[[RMQLong alloc] init:self.payload.amqEncoded.length],
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self.payload,
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[[RMQOctet alloc] init:0xCE]];
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for (id<RMQEncodable> part in unencodedFrame) {
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[frameData appendData:part.amqEncoded];
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}
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return frameData;
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}
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- (BOOL)isHeartbeat {
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return self.channelNumber.integerValue == 0 && [self.payload isKindOfClass:[RMQHeartbeat class]];
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}
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@end
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