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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 "EmptyFilePoolManager.h"
#include <dirent.h>
#include "qpid/linearstore/jrnl/EmptyFilePoolPartition.h"
#include "qpid/linearstore/jrnl/jdir.h"
#include "qpid/linearstore/jrnl/JournalLog.h"
#include "qpid/linearstore/jrnl/slock.h"
#include <vector>
//#include <iostream> // DEBUG
namespace qpid {
namespace linearstore {
namespace journal {
EmptyFilePoolManager::EmptyFilePoolManager(const std::string& qlsStorePath,
const efpPartitionNumber_t defaultPartitionNumber,
const efpDataSize_kib_t defaultEfpDataSize_kib,
JournalLog& journalLogRef) :
qlsStorePath_(qlsStorePath),
defaultPartitionNumber_(defaultPartitionNumber),
defaultEfpDataSize_kib_(defaultEfpDataSize_kib),
journalLogRef_(journalLogRef)
{}
EmptyFilePoolManager::~EmptyFilePoolManager() {
slock l(partitionMapMutex_);
for (partitionMapItr_t i = partitionMap_.begin(); i != partitionMap_.end(); ++i) {
delete i->second;
}
partitionMap_.clear();
}
void EmptyFilePoolManager::findEfpPartitions() {
//std::cout << "*** Reading " << qlsStorePath_ << std::endl; // DEBUG
bool foundPartition = false;
std::vector<std::string> dirList;
while (!foundPartition) {
jdir::read_dir(qlsStorePath_, dirList, true, false, true, false);
for (std::vector<std::string>::iterator i = dirList.begin(); i != dirList.end(); ++i) {
efpPartitionNumber_t pn = EmptyFilePoolPartition::getPartitionNumber(*i);
if (pn > 0) { // valid partition name found
std::string fullDirPath(qlsStorePath_ + "/" + (*i));
EmptyFilePoolPartition* efppp = 0;
try {
efppp = new EmptyFilePoolPartition(pn, fullDirPath, journalLogRef_);
{
slock l(partitionMapMutex_);
partitionMap_[pn] = efppp;
}
} catch (const std::exception& e) {
if (efppp != 0) {
delete efppp;
efppp = 0;
}
//std::cerr << "Unable to initialize partition " << pn << " (\'" << fullDirPath << "\'): " << e.what() << std::endl; // DEBUG
}
if (efppp != 0)
efppp->findEmptyFilePools();
foundPartition = true;
}
}
// If no partition was found, create an empty default partition with a warning.
if (!foundPartition) {
journalLogRef_.log(JournalLog::LOG_WARN, "No EFP partition found, creating an empty partition.");
std::ostringstream oss;
oss << qlsStorePath_ << "/" << EmptyFilePoolPartition::getPartionDirectoryName(defaultPartitionNumber_)
<< "/" << EmptyFilePoolPartition::s_efpTopLevelDir_ << "/" << EmptyFilePool::dirNameFromDataSize(defaultEfpDataSize_kib_);
jdir::create_dir(oss.str());
}
}
journalLogRef_.log(JournalLog::LOG_NOTICE, "EFP Manager initialization complete");
std::vector<qpid::linearstore::journal::EmptyFilePoolPartition*> partitionList;
std::vector<qpid::linearstore::journal::EmptyFilePool*> filePoolList;
getEfpPartitions(partitionList);
if (partitionList.size() == 0) {
journalLogRef_.log(JournalLog::LOG_WARN, "NO EFP PARTITIONS FOUND! No queue creation is possible.");
} else {
std::stringstream oss;
oss << "> EFP Partitions found: " << partitionList.size();
journalLogRef_.log(JournalLog::LOG_INFO, oss.str());
for (std::vector<qpid::linearstore::journal::EmptyFilePoolPartition*>::const_iterator i=partitionList.begin(); i!= partitionList.end(); ++i) {
filePoolList.clear();
(*i)->getEmptyFilePools(filePoolList);
std::stringstream oss;
oss << " * Partition " << (*i)->getPartitionNumber() << " containing " << filePoolList.size()
<< " pool" << (filePoolList.size()>1 ? "s" : "") << " at \'" << (*i)->getPartitionDirectory() << "\'";
journalLogRef_.log(JournalLog::LOG_INFO, oss.str());
for (std::vector<qpid::linearstore::journal::EmptyFilePool*>::const_iterator j=filePoolList.begin(); j!=filePoolList.end(); ++j) {
std::ostringstream oss;
oss << " - EFP \'" << (*j)->dataSize_kib() << "k\' containing " << (*j)->numEmptyFiles() <<
" files of size " << (*j)->dataSize_kib() << " KiB totaling " << (*j)->cumFileSize_kib() << " KiB";
journalLogRef_.log(JournalLog::LOG_INFO, oss.str());
}
}
}
}
void EmptyFilePoolManager::getEfpFileSizes(std::vector<efpDataSize_kib_t>& efpFileSizeList,
const efpPartitionNumber_t efpPartitionNumber) const {
if (efpPartitionNumber == 0) {
for (partitionMapConstItr_t i=partitionMap_.begin(); i!=partitionMap_.end(); ++i) {
i->second->getEmptyFilePoolSizes_kib(efpFileSizeList);
}
} else {
partitionMapConstItr_t i = partitionMap_.find(efpPartitionNumber);
if (i != partitionMap_.end()) {
i->second->getEmptyFilePoolSizes_kib(efpFileSizeList);
}
}
}
EmptyFilePoolPartition* EmptyFilePoolManager::getEfpPartition(const efpPartitionNumber_t partitionNumber) {
partitionMapItr_t i = partitionMap_.find(partitionNumber);
if (i == partitionMap_.end())
return 0;
else
return i->second;
}
void EmptyFilePoolManager::getEfpPartitionNumbers(std::vector<efpPartitionNumber_t>& partitionNumberList,
const efpDataSize_kib_t efpDataSize_kib) const {
slock l(partitionMapMutex_);
for (partitionMapConstItr_t i=partitionMap_.begin(); i!=partitionMap_.end(); ++i) {
if (efpDataSize_kib == 0) {
partitionNumberList.push_back(i->first);
} else {
std::vector<efpDataSize_kib_t> efpFileSizeList;
i->second->getEmptyFilePoolSizes_kib(efpFileSizeList);
for (std::vector<efpDataSize_kib_t>::iterator j=efpFileSizeList.begin(); j!=efpFileSizeList.end(); ++j) {
if (*j == efpDataSize_kib) {
partitionNumberList.push_back(i->first);
break;
}
}
}
}
}
void EmptyFilePoolManager::getEfpPartitions(std::vector<EmptyFilePoolPartition*>& partitionList,
const efpDataSize_kib_t efpDataSize_kib) {
slock l(partitionMapMutex_);
for (partitionMapConstItr_t i=partitionMap_.begin(); i!=partitionMap_.end(); ++i) {
if (efpDataSize_kib == 0) {
partitionList.push_back(i->second);
} else {
std::vector<efpDataSize_kib_t> efpFileSizeList;
i->second->getEmptyFilePoolSizes_kib(efpFileSizeList);
for (std::vector<efpDataSize_kib_t>::iterator j=efpFileSizeList.begin(); j!=efpFileSizeList.end(); ++j) {
if (*j == efpDataSize_kib) {
partitionList.push_back(i->second);
break;
}
}
}
}
}
EmptyFilePool* EmptyFilePoolManager::getEmptyFilePool(const efpIdentity_t efpIdentity) {
return getEmptyFilePool(efpIdentity.pn_, efpIdentity.ds_);
}
EmptyFilePool* EmptyFilePoolManager::getEmptyFilePool(const efpPartitionNumber_t partitionNumber,
const efpDataSize_kib_t efpDataSize_kib) {
EmptyFilePoolPartition* efppp = getEfpPartition(partitionNumber);
if (efppp != 0)
return efppp->getEmptyFilePool(efpDataSize_kib);
return 0;
}
void EmptyFilePoolManager::getEmptyFilePools(std::vector<EmptyFilePool*>& emptyFilePoolList,
const efpPartitionNumber_t efpPartitionNumber) {
if (efpPartitionNumber == 0) {
for (partitionMapConstItr_t i=partitionMap_.begin(); i!=partitionMap_.end(); ++i) {
i->second->getEmptyFilePools(emptyFilePoolList);
}
} else {
partitionMapConstItr_t i = partitionMap_.find(efpPartitionNumber);
if (i != partitionMap_.end()) {
i->second->getEmptyFilePools(emptyFilePoolList);
}
}
}
uint16_t EmptyFilePoolManager::getNumEfpPartitions() const {
return partitionMap_.size();
}
}}}
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