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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.
*
*/
#include <BrokerMessage.h>
#include <iostream>
#include <InMemoryContent.h>
#include <LazyLoadedContent.h>
#include <MessageStore.h>
// AMQP version change - kpvdr 2006-11-17
#include <ProtocolVersion.h>
#include <BasicDeliverBody.h>
#include <BasicGetOkBody.h>
using namespace boost;
using namespace qpid::broker;
using namespace qpid::framing;
using namespace qpid::sys;
Message::Message(const ConnectionToken* const _publisher,
const string& _exchange, const string& _routingKey,
bool _mandatory, bool _immediate) : publisher(_publisher),
exchange(_exchange),
routingKey(_routingKey),
mandatory(_mandatory),
immediate(_immediate),
redelivered(false),
size(0),
persistenceId(0) {}
Message::Message(Buffer& buffer, bool headersOnly, u_int32_t contentChunkSize) :
publisher(0), mandatory(false), immediate(false), redelivered(false), size(0), persistenceId(0){
decode(buffer, headersOnly, contentChunkSize);
}
Message::Message() : publisher(0), mandatory(false), immediate(false), redelivered(false), size(0), persistenceId(0){}
Message::~Message(){
if (content.get()) content->destroy();
}
void Message::setHeader(AMQHeaderBody::shared_ptr _header){
this->header = _header;
}
void Message::addContent(AMQContentBody::shared_ptr data){
if (!content.get()) {
content = std::auto_ptr<Content>(new InMemoryContent());
}
content->add(data);
size += data->size();
}
bool Message::isComplete(){
return header.get() && (header->getContentSize() == contentSize());
}
void Message::redeliver(){
redelivered = true;
}
void Message::deliver(OutputHandler* out, int channel,
const string& consumerTag, u_int64_t deliveryTag,
u_int32_t framesize){
// AMQP version change - kpvdr 2006-11-17
// TODO: Make this class version-aware and link these hard-wired numbers to that version
out->send(new AMQFrame(channel, new BasicDeliverBody(ProtocolVersion(8,0), consumerTag, deliveryTag, redelivered, exchange, routingKey)));
sendContent(out, channel, framesize);
}
void Message::sendGetOk(OutputHandler* out,
int channel,
u_int32_t messageCount,
u_int64_t deliveryTag,
u_int32_t framesize){
// AMQP version change - kpvdr 2006-11-17
// TODO: Make this class version-aware and link these hard-wired numbers to that version
out->send(new AMQFrame(channel, new BasicGetOkBody(ProtocolVersion(8,0), deliveryTag, redelivered, exchange, routingKey, messageCount)));
sendContent(out, channel, framesize);
}
void Message::sendContent(OutputHandler* out, int channel, u_int32_t framesize){
AMQBody::shared_ptr headerBody = static_pointer_cast<AMQBody, AMQHeaderBody>(header);
out->send(new AMQFrame(channel, headerBody));
Mutex::ScopedLock locker(contentLock);
if (content.get()) content->send(out, channel, framesize);
}
BasicHeaderProperties* Message::getHeaderProperties(){
return dynamic_cast<BasicHeaderProperties*>(header->getProperties());
}
const ConnectionToken* const Message::getPublisher(){
return publisher;
}
bool Message::isPersistent()
{
if(!header) return false;
BasicHeaderProperties* props = getHeaderProperties();
return props && props->getDeliveryMode() == PERSISTENT;
}
void Message::decode(Buffer& buffer, bool headersOnly, u_int32_t contentChunkSize)
{
decodeHeader(buffer);
if (!headersOnly) decodeContent(buffer, contentChunkSize);
}
void Message::decodeHeader(Buffer& buffer)
{
buffer.getShortString(exchange);
buffer.getShortString(routingKey);
u_int32_t headerSize = buffer.getLong();
AMQHeaderBody::shared_ptr headerBody(new AMQHeaderBody());
headerBody->decode(buffer, headerSize);
setHeader(headerBody);
}
void Message::decodeContent(Buffer& buffer, u_int32_t chunkSize)
{
u_int64_t expected = expectedContentSize();
if (expected != buffer.available()) {
std::cout << "WARN: Expected " << expectedContentSize()
<< " bytes, got " << buffer.available() << std::endl;
throw Exception("Cannot decode content, buffer not large enough.");
}
if (!chunkSize || chunkSize > expected) {
chunkSize = expected;
}
u_int64_t total = 0;
while (total < expectedContentSize()) {
u_int64_t remaining = expected - total;
AMQContentBody::shared_ptr contentBody(new AMQContentBody());
contentBody->decode(buffer, remaining < chunkSize ? remaining : chunkSize);
addContent(contentBody);
total += chunkSize;
}
}
void Message::encode(Buffer& buffer)
{
encodeHeader(buffer);
encodeContent(buffer);
}
void Message::encodeHeader(Buffer& buffer)
{
buffer.putShortString(exchange);
buffer.putShortString(routingKey);
buffer.putLong(header->size());
header->encode(buffer);
}
void Message::encodeContent(Buffer& buffer)
{
Mutex::ScopedLock locker(contentLock);
if (content.get()) content->encode(buffer);
}
u_int32_t Message::encodedSize()
{
return encodedHeaderSize() + encodedContentSize();
}
u_int32_t Message::encodedContentSize()
{
Mutex::ScopedLock locker(contentLock);
return content.get() ? content->size() : 0;
}
u_int32_t Message::encodedHeaderSize()
{
return exchange.size() + 1
+ routingKey.size() + 1
+ header->size() + 4;//4 extra bytes for size
}
u_int64_t Message::expectedContentSize()
{
return header.get() ? header->getContentSize() : 0;
}
void Message::releaseContent(MessageStore* store)
{
Mutex::ScopedLock locker(contentLock);
if (!isPersistent() && persistenceId == 0) {
store->stage(this);
}
if (!content.get() || content->size() > 0) {
//set content to lazy loading mode (but only if there is stored content):
//Note: the LazyLoadedContent instance contains a raw pointer to the message, however it is
// then set as a member of that message so its lifetime is guaranteed to be no longer than
// that of the message itself
content = std::auto_ptr<Content>(new LazyLoadedContent(store, this, expectedContentSize()));
}
}
void Message::setContent(std::auto_ptr<Content>& _content)
{
Mutex::ScopedLock locker(contentLock);
content = _content;
}
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