void handleLeaveMessage(char* inBuffer, int size, char** outBuffer, int *outSize)
{
//Create a Leave message
Leave *l = new Leave();
//Decode leave message
l->decode(inBuffer, size);
//Search the users list for nickname
bool deleted = false;
pthread_mutex_lock(&userListMutex);
for(vector<Join*>::iterator it = users.begin(); it != users.end(); ++it)
{
Join *user = *(it);
//Remove nickname if it exists
if (strcmp(l->getNickname(), user->getNickname()) == 0)
{
users.erase(it);
deleted = true;
break; //Erasing messes up iteration, so may as well just break out
}
}
pthread_mutex_unlock(&userListMutex);
//Create appropriate confirm message
Confirm *c = new Confirm();
c->setResponse(deleted);
//Encode this message and return
(*outSize)=c->encode(outBuffer);
delete l;
delete c;
}
void showExample012()
{
Join *j = new Join();
Base *b = j;
cout << j->method() << endl;
cout << b << endl;
}
// LCOV_EXCL_START
// Used for other RelExpr but not MultiJoin
void MultiJoin::synthEstLogProp(const EstLogPropSharedPtr& inputEstLogProp)
{
CMPASSERT(inputEstLogProp->getNodeSet());
Join * preferredJoin = jbbSubset_.getPreferredJoin();
CMPASSERT(preferredJoin->isJoinFromMJSynthLogProp());
EstLogPropSharedPtr myEstLogProp =
preferredJoin->getGroupAttr()->outputLogProp(inputEstLogProp);
getGroupAttr()->addInputOutputLogProp (inputEstLogProp, myEstLogProp, NULL);
} // MultiJoin::synthEstLogProp
EstLogPropSharedPtr AppliedStatMan::synthesizeLogProp(
const CANodeIdSet * nodeSet,
EstLogPropSharedPtr &inLP)
{
EstLogPropSharedPtr outputEstLogProp;
CANodeIdSet combinedNodeSetWithInput = *nodeSet;
if (inLP->isCacheable())
{
CANodeIdSet * inNodeSet = inLP->getNodeSet();
// if inLP are cacheable these should have a nodeSet attached
// if not, assert in debug mode. In release mode, set the properties
// as not cacheable. These will then be looked into group attr cache
if (inNodeSet == NULL)
{
CCMPASSERT(inNodeSet != NULL);
inLP->setCacheableFlag(FALSE);
}
else
{
// check ASM cache for the estLogProps of nodeSet for the given
// inLP
combinedNodeSetWithInput.insert(*inNodeSet);
if ((outputEstLogProp =\
getCachedStatistics(&combinedNodeSetWithInput)) != NULL)
return outputEstLogProp;
}
}
if(nodeSet->entries() == 1)
return getStatsForCANodeId(nodeSet->getFirst(), inLP);
JBBSubset * jbbSubset = nodeSet->jbbcsToJBBSubset();
Join * preferredJoin = jbbSubset->getPreferredJoin();
//CMPASSERT(preferredJoin->isJoinFromMJSynthLogProp());
outputEstLogProp = preferredJoin->getGroupAttr()->outputLogProp(inLP);
return outputEstLogProp;
} // AppliedStatMan::synthesizeLogProp
void MultiJoin::synthLogProp(NormWA * normWAPtr)
{
// Check to see whether this GA has already been associated
// with a logExpr for synthesis. If so, no need to resynthesize
// for this equivalent log. expression.
if (getGroupAttr()->existsLogExprForSynthesis()) return;
CMPASSERT ( (jbbSubset_.getGB() == NULL_CA_ID));
const CANodeIdSet & jbbcs = jbbSubset_.getJBBCs();
// Instead of always picking the first JBBC as the right child
// pick the one with minimum JBBC connections. This will avoid
// all unnecessary crossproducts
CANodeId jbbcRight;
jbbcRight = jbbcs.getJBBCwithMinConnectionsToThisJBBSubset();
CANodeIdSet right(jbbcRight);
CANodeIdSet left(jbbcs);
left -= jbbcRight;
Join* join = splitSubset(*(left.jbbcsToJBBSubset()),
*(right.jbbcsToJBBSubset()));
join->synthLogProp(normWAPtr);
getGroupAttr()->setLogExprForSynthesis(join);
join->setJoinFromMJSynthLogProp();
jbbSubset_.setSubsetMJ(this);
CASortedList * synthLogPropPath =
new (CmpCommon::statementHeap())
CASortedList(CmpCommon::statementHeap(), jbbcs.entries());
synthLogPropPath->insert((*(left.jbbcsToJBBSubset()->getSynthLogPropPath())));
synthLogPropPath->insert(right.getFirst());
jbbSubset_.setSynthLogPropPath(synthLogPropPath);
CMPASSERT ( getGroupAttr()->getNumJoinedTables() >= getArity());
}
void handleNewMessage(char* inBuffer, int size, char** outBuffer, int *outSize)
{
//Create a Chat Message
ChatMessage *m = new ChatMessage();
//Decode Chat Message
m->decode(inBuffer, size);
//Search the users list for nickname
bool found = false;
pthread_mutex_lock(&userListMutex);
for(vector<Join*>::iterator it = users.begin(); it != users.end(); ++it)
{
Join *user = (*it);
//Remove nickname if it exists
if (strcmp(m->getSender(), user->getNickname()) == 0)
{
found = true;
}
}
pthread_mutex_unlock(&userListMutex);
//If the name exists add the name and message to the messages list
if (found)
{
char* message = new char[strlen(m->getSender()) + 2 + strlen(m->getMessage()) + 1]; //sender + ": " + message + null
sprintf(message, "%s: %s", m->getSender(), m->getMessage()); //easier than dealing with strcpy
pthread_mutex_lock(&messageListMutex);
messageList.push_back(message);
pthread_mutex_unlock(&messageListMutex);
}
//Create appropriate confirm message
Confirm *c = new Confirm();
c->setResponse(found);
//Encode this message and return
(*outSize)=c->encode(outBuffer);
delete m;
delete c;
}
void MultiJoin::synthLogPropWithMJReuse(NormWA * normWAPtr)
{
// Check to see whether this GA has already been associated
// with a logExpr for synthesis. If so, no need to resynthesize
// for this equivalent log. expression.
if (getGroupAttr()->existsLogExprForSynthesis())
{
Join * joinExprForSynth =
(Join *) getGroupAttr()->getLogExprForSynthesis();
if(joinExprForSynth->isJoinFromMJSynthLogProp())
return;
}
NABoolean reUseMJ = TRUE;
CMPASSERT ( (jbbSubset_.getGB() == NULL_CA_ID));
const CANodeIdSet & jbbcs = jbbSubset_.getJBBCs();
// Instead of always picking the first JBBC as the right child
// pick the one with minimum JBBC connections. This will avoid
// all unnecessary crossproducts
CANodeId jbbcRight;
jbbcRight = jbbcs.getJBBCwithMinConnectionsToThisJBBSubset();
CANodeIdSet right(jbbcRight);
CANodeIdSet left(jbbcs);
left -= jbbcRight;
Join* join = splitSubset(*(left.jbbcsToJBBSubset()),
*(right.jbbcsToJBBSubset()),
reUseMJ);
//if the left is a MultiJoin, synthesize it using reUse
//this has to be done before join->synthLogProp to avoid
//calling MultiJoin::synthLogProp on the left MultiJoin
//because that does not reUse
if(left.entries() > 1)
{
RelExpr * leftRelExpr = join->child(0)->castToRelExpr();
if(leftRelExpr &&
leftRelExpr->getOperator() == REL_MULTI_JOIN)
((MultiJoin *) leftRelExpr)->synthLogPropWithMJReuse(normWAPtr);
}
join->synthLogProp(normWAPtr);
join->setJoinFromMJSynthLogProp();
getGroupAttr()->setLogExprForSynthesis(join);
jbbSubset_.setSubsetMJ(this);
CMPASSERT ( getGroupAttr()->getNumJoinedTables() >= getArity());
}
bool HallAction::execute(const QString &input, QStringList* output) {
QString head = Command::ParseHead(input);
if (head == kActionRooms) {
for (auto it : hall_->opens_) {
*output << " * ";
output->last().append(it.first);
if (!it.second->pin().isEmpty()) {
output->last().append(" (** pin required)");
}
}
} else if (head == kActionCreate) {
if (Hall::opens_.size() >= kMaxRoomCount) {
*output << QString("Maximum room count reached: %1").arg(kMaxRoomCount);
} else {
Create* create = new Create;
if (!create->execute(input, output)) {
client_->registerProtocol(create);
} else {
delete create;
}
}
} else if (head == kActionQuit) {
emit client_->closeConnection();
*output << "BYE!";
} else if (head == kActionJoin) {
Join* join = new Join(hall_, client_);
if (!join->execute(input, output)) {
client_->registerProtocol(join);
} else {
delete join;
}
} else {
*output << actionList_;
}
return false;
}
// get Stats after applying given join predicates on the JBBC
EstLogPropSharedPtr AppliedStatMan::getStatsForGivenJoinPredsOnJBBC(
const CANodeIdSet jbbSubset,
CANodeId jbbc,
const ValueIdSet joinPreds,
const ValueIdSet localPreds,
EstLogPropSharedPtr &inLP)
{
EstLogPropSharedPtr inputLP = inLP;
if(inputLP == (*GLOBAL_EMPTY_INPUT_LOGPROP))
inputLP = jbbc.getJBBInput();
EstLogPropSharedPtr outputEstLogProp;
// form a Join expression with the given join predicates, and compute
// output estimated logical properties. These properties should not be cached
// in the ASM cache, hence set the "cacheable" flag to FALSE in inLP.
// We do not want to modify the "cacheable" flag in the inLP, hence make a
// copy of these logical properties.
EstLogPropSharedPtr nonCacheableInLP(new (HISTHEAP) EstLogProp (*inputLP));
nonCacheableInLP->setCacheableFlag(FALSE);
Join * joinExpr = formJoinExprForJoinOnJBBC(jbbSubset,
jbbc,
&localPreds,
&joinPreds,
nonCacheableInLP,
FALSE);
// synthesize estimate logical properties for the join
outputEstLogProp = joinExpr->getGroupAttr()->outputLogProp(nonCacheableInLP);
return outputEstLogProp;
} // AppliedStatMan::getStatsForGivenJoinPreds
// ------------------------------------------------------------------------
// Create a left linear subtree of joins from this MultiJoin
// ------------------------------------------------------------------------
Join* MultiJoin::leftLinearize(NABoolean fixJoinOrder, NABoolean createPriviledgedJoins) const
{
// At this point assert that the subsets has no group by member.
// If we want to allow GBs in this method in the future we should
// remember to use computeJBBSubset() instead of the faster
// jbbcsToJBBSubset() used currently in this method..
CMPASSERT ( (jbbSubset_.getGB() == NULL_CA_ID));
const CANodeIdSet & jbbcs = jbbSubset_.getJBBCs();
// pick some child to make right child of join
CANodeId jbbcRight(jbbcs.getFirst());
CANodeIdSet right(jbbcRight);
CANodeIdSet left(jbbcs);
left -= jbbcRight;
NABoolean nonExpander = (left.jbbcsToJBBSubset()->
isGuaranteedNonExpandingJoin((*jbbcRight.getNodeAnalysis()->getJBBC())));
Join* result = splitSubset(*(left.jbbcsToJBBSubset()),
*(right.jbbcsToJBBSubset()));
if (fixJoinOrder)
{
// disallow left shift rule on the join
result->contextInsensRules() += JoinLeftShiftRuleNumber;
// disallow join commutativity on the join
result->contextInsensRules() += JoinCommutativityRuleNumber;
}
if (createPriviledgedJoins)
{
result->setJoinFromPTRule();
if ( CmpCommon::getDefault(COMP_BOOL_120) == DF_OFF)
{
result->updatePotential(-2);
}
}
// If left subset is a multiJoin, then linearize it too.
if (left.entries() > 1)
{
// left child must be multiJoin at this point. May be add assert.
MultiJoin* leftChild = (MultiJoin*)(result->child(0).getPtr());
result->child(0) = leftChild->leftLinearize(fixJoinOrder,createPriviledgedJoins);
}
return result;
} // MultiJoin::leftLinearize()
void handleJoinMessage(char* inBuffer, int size, char** outBuffer, int *outSize)
{
//Create a Join message
Join *j = new Join();
//Decode buffer into join message
j->decode(inBuffer, size);
printf("Nickname: %s\n", j->getNickname());
//Search the users list for nickname
//If the name exits do not add
bool accept = true;
pthread_mutex_lock(&userListMutex);
for(vector<Join*>::iterator it = users.begin(); it != users.end(); ++it)
{
Join *user = *(it);
if (strcmp(j->getNickname(), user->getNickname()) == 0)
{
//Exact match
accept = false;
}
}
pthread_mutex_unlock(&userListMutex);
if (accept)
{
users.push_back(j);
}
else
{
delete j;
}
//Respond with confirm message
Confirm *c = new Confirm();
c->setResponse(accept);
//Encode the message into the outbuffer and
//Set the outsize
(*outSize)=c->encode(outBuffer);
delete c;
}
// This method forms the join expression for join on JBBC specified by jbbcId
// inputEstLogProp should not be cacheable
Join * AppliedStatMan::formJoinExprForJoinOnJBBC(
CANodeIdSet jbbSubset,
CANodeId jbbcId,
const ValueIdSet * jbbcLocalPreds,
const ValueIdSet * joinPreds,
const EstLogPropSharedPtr& inputEstLogProp,
const NABoolean cacheable)
{
NABoolean origInputIsCacheable = inputEstLogProp->isCacheable();
if(origInputIsCacheable)
{
inputEstLogProp->setCacheableFlag(FALSE);
CCMPASSERT("Expecting Non Cacheable Input");
}
RelExpr * jbbcExpr = getExprForCANodeId(jbbcId, inputEstLogProp, jbbcLocalPreds);
jbbcExpr->getGroupAttr()->outputLogProp(inputEstLogProp);
RelExpr * jbbSubsetExpr = jbbSubset.jbbcsToJBBSubset()->getPreferredJoin();
if(!jbbSubsetExpr)
if(jbbSubset.entries()==1)
if(!inputEstLogProp->isCacheable())
{
inputEstLogProp->setCacheableFlag(TRUE);
jbbSubsetExpr = getExprForCANodeId(jbbSubset.getFirst(), inputEstLogProp);
inputEstLogProp->setCacheableFlag(FALSE);
}
else
jbbSubsetExpr = getExprForCANodeId(jbbSubset.getFirst(), inputEstLogProp);
else
{
CCMPASSERT("No Subset expression, need at least one entry in set");
}
RelExpr * leftChildExpr = jbbSubsetExpr;
RelExpr * rightChildExpr = jbbcExpr;
GroupAttributes * galeft = jbbSubsetExpr->getGroupAttr();
GroupAttributes * garight = jbbcExpr->getGroupAttr();
// xxx
JBBC * jbbc = jbbcId.getNodeAnalysis()->getJBBC();
Join * jbbcParentJoin = jbbc->getOriginalParentJoin();
ValueIdSet leftOuterJoinFilterPreds;
Join * joinExpr = NULL;
if(jbbcParentJoin)
{
if(jbbcParentJoin->isSemiJoin())
joinExpr = new STMTHEAP Join(leftChildExpr, rightChildExpr, REL_SEMIJOIN, NULL);
if(jbbcParentJoin->isAntiSemiJoin())
joinExpr = new STMTHEAP Join(leftChildExpr, rightChildExpr, REL_ANTI_SEMIJOIN, NULL);
if(jbbcParentJoin->isLeftJoin())
{
joinExpr = new STMTHEAP Join(leftChildExpr, rightChildExpr, REL_LEFT_JOIN, NULL);
leftOuterJoinFilterPreds += jbbc->getLeftJoinFilterPreds();
}
if(joinExpr)
{
joinExpr->setJoinPred(jbbc->getPredsWithPredecessors());
joinExpr->nullInstantiatedOutput().insert(jbbc->nullInstantiatedOutput());
}
}
if(!joinExpr)
{
// now form a JoinExpr with these left and right children.
joinExpr = new STMTHEAP Join(leftChildExpr, rightChildExpr, REL_JOIN, NULL);
}
ValueIdSet selPredsAndLOJFilter = leftOuterJoinFilterPreds;
selPredsAndLOJFilter += (*joinPreds);
joinExpr->setSelectionPredicates(selPredsAndLOJFilter);
// set groupAttr of this Join expression
GroupAttributes * gaJoin = new STMTHEAP GroupAttributes();
// set required outputs of Join as sum of characteristic
// outputs of the left and the right children
ValueIdSet requiredOutputs;
requiredOutputs.addSet(getPotentialOutputs(jbbSubset));
requiredOutputs.addSet(getPotentialOutputs(jbbcId));
gaJoin->setCharacteristicOutputs(requiredOutputs);
// set JBBSubset for this group, if all estLogProps are cacheable.
// Else JBBSubset is NULL
CANodeIdSet combinedSet = jbbSubset;
combinedSet += jbbcId;
if (cacheable)
gaJoin->getGroupAnalysis()->setLocalJBBView(combinedSet.jbbcsToJBBSubset());
gaJoin->setMinChildEstRowCount(MINOF(garight->getMinChildEstRowCount(), galeft->getMinChildEstRowCount() ) );
// if there are some probes coming into the join
// then join type = tsj.
if ((inputEstLogProp->getResultCardinality() > 1) ||
(inputEstLogProp->getColStats().entries() > 1))
{
if (cacheable)
{
CANodeIdSet inputNodeSet = *(inputEstLogProp->getNodeSet());
gaJoin->setCharacteristicInputs(getPotentialOutputs(inputNodeSet));
}
}
joinExpr->setGroupAttr(gaJoin);
gaJoin->setLogExprForSynthesis(joinExpr);
joinExpr->synthLogProp();
inputEstLogProp->setCacheableFlag(origInputIsCacheable);
return joinExpr;
} // AppliedStatMan::formJoinExprForJoinOnJBBC
void QXMLLoad::parseFSM(QDomElement fsmElement) {
// Preparation
int loopcounter =0;
// Get Core
Core& c = *(Core::getInstance());
// Add FSM to core
//-----------------
Fsm * fsm = c.getProject()->addFSM();
//-- Generators parameters
//--------------------------------------
QList<QDomElement> toolsParameters = QXMLLoad::getChildElements("ToolsParameters",fsmElement);
if (toolsParameters.size()>0) {
//-- Get parameters for a user
QList<QDomElement> userParameters = QXMLLoad::getChildElements("Parameters",toolsParameters.front());
for (QList<QDomElement>::iterator it=userParameters.begin();it!=userParameters.end();it++) {
//---- Get user id
string userid = QXMLLoad::getAttributeValue("userid",*it);
//---- Get All parameters
QList<QDomElement> parameters = QXMLLoad::getChildElements("Parameter",*it);
for (QList<QDomElement>::iterator pit=parameters.begin();pit!=parameters.end();pit++) {
// Record
fsm->setParameter(userid,QXMLLoad::getAttributeValue("key",*pit),(*pit).text().toStdString());
}
}
}
//-- Globals
//-- Inputs
QList<QDomElement> inputnames = QXMLLoad::getChildElements("name",QXMLLoad::getFirstMatchingChild("inputnames",fsmElement));
loopcounter =0;
for (QList<QDomElement>::iterator it=inputnames.begin();it!=inputnames.end();it++,loopcounter++) {
fsm->addInput((*it).text().toStdString().c_str());
}
//-- Outputs
QList<QDomElement> outputnames = QXMLLoad::getChildElements("name",QXMLLoad::getFirstMatchingChild("outputnames",fsmElement));
loopcounter =0;
for (QList<QDomElement>::iterator it=outputnames.begin();it!=outputnames.end();it++,loopcounter++) {
fsm->addOutput((*it).text().toStdString().c_str());
}
//-- States
QList<QDomElement> states = QXMLLoad::getChildElements("state",fsmElement);
loopcounter =0;
for (QList<QDomElement>::iterator it=states.begin();it!=states.end();it++,loopcounter++) {
//-- Create State and set parameters
State * currentState = new ::State(fsm->getNumberOfOutputs());
currentState->setId(atoi(QXMLLoad::getAttributeValue("id",*it)));
currentState->setName(QXMLLoad::getChildText("sname",*it));
currentState->setOutput(QXMLLoad::getChildText("output",*it));
currentState->setPosition(pair<double,double>(atof(QXMLLoad::getAttributeValue("posx",*it)),atof(QXMLLoad::getAttributeValue("posy",*it))));
currentState->setColor(atoi(QXMLLoad::getAttributeValue("color",*it)));
currentState->setReset(true);
//string name = QXMLLoad::getChildText("sname",*it);
//qDebug() << "State name: "<< QString::fromStdString(name) << "//" << QString::fromStdString(currentState->getName());
fsm->addState(currentState);
} // EO States --//
//-- Links
//----------------
QList<QDomElement> links = QXMLLoad::getChildElements("link",fsmElement);
loopcounter =0;
for (QList<QDomElement>::iterator it=links.begin();it!=links.end();it++,loopcounter++) {
//-- Create
Link * link = new Link(fsm->getStatebyID(atoi(QXMLLoad::getAttributeValue("goal",*it))),atof(QXMLLoad::getAttributeValue("posx",*it)),
atof(QXMLLoad::getAttributeValue("posy",*it)));
link->setId(atoi(QXMLLoad::getAttributeValue("id",*it)));
//-- Color
link->setColor(atoi(QXMLLoad::getAttributeValue("color",*it)));
//-- Add
fsm->addLink(link);
}
//-- Hypertrans
//----------------
QList<QDomElement> hypertrans = QXMLLoad::getChildElements("hypertrans",fsmElement);
loopcounter =0;
for (QList<QDomElement>::iterator it=hypertrans.begin();it!=hypertrans.end();it++,loopcounter++) {
//-- Create
Hypertrans * hyperTransition = new Hypertrans();
hyperTransition->setType(atoi(QXMLLoad::getChildText("type",*it).c_str()) == 0 ? Hypertrans::FromReset : Hypertrans::FromAllStates);
hyperTransition->setPosition(make_pair( atof(QXMLLoad::getAttributeValue("posx",*it)),atof(QXMLLoad::getAttributeValue("posy",*it))));
hyperTransition->setId(atoi(QXMLLoad::getAttributeValue("id",*it)));
hyperTransition->setTargetState(fsm->getStatebyID(atoi(QXMLLoad::getAttributeValue("targetState",*it))));
hyperTransition->setName(QXMLLoad::getChildText("name",*it));
//-- Color
hyperTransition->setColor(atoi(QXMLLoad::getAttributeValue("color",*it)));
//-- Add
Hypertrans * hypertrans = fsm->addHypertrans(hyperTransition);
//-- Conditions
QList<QDomElement> conditions = QXMLLoad::getChildElements("condition",*it);
int loopcounter2 =0;
for (QList<QDomElement>::iterator it2=conditions.begin();it2!=conditions.end();it2++,loopcounter2++) {
// add
Condition* condition = hypertrans->addCondition(fsm->getNumberOfInputs());
condition->setName(QXMLLoad::getChildText("cname",*it2));
condition->setInput(QXMLLoad::getChildText("input",*it2));
} // EO Conditions --//
//-- Trackpoints ?
}
//-- Joins
//----------------
QList<QDomElement> joins = QXMLLoad::getChildElements("Join",fsmElement);
loopcounter =0;
for (QList<QDomElement>::iterator it=joins.begin();it!=joins.end();it++,loopcounter++) {
//-- Create
Join * newJoin = new Join();
//-- Id
newJoin->setId(atoi(QXMLLoad::getAttributeValue("id",*it)));
//-- Position
newJoin->setPosx(atof(QXMLLoad::getAttributeValue("posx",*it)));
newJoin->setPosy(atof(QXMLLoad::getAttributeValue("posy",*it)));
//-- target State
newJoin->setTargetState(fsm->getStatebyID(atoi(QXMLLoad::getAttributeValue("targetState",*it))));
//-- Add join to FSM
fsm->addJoin(newJoin);
//---- Trackpoints
//-----------------------
QList<QDomElement> trackpoints = QXMLLoad::getChildElements("trackpoint",*it);
int loopcounter2 =0;
for (QList<QDomElement>::iterator it2=trackpoints.begin();it2!=trackpoints.end();it2++,loopcounter2++) {
//-- Add
Trackpoint * addedTrackpoint = newJoin->addTrackpoint();
//-- Position
addedTrackpoint->setPosition(make_pair((double)atof(QXMLLoad::getAttributeValue("posx",*it2)),(double)atof(QXMLLoad::getAttributeValue("posy",*it2))));
//-- Link ?
bool link = atoi(QXMLLoad::getAttributeValue("link",*it2))==1?true:false;
addedTrackpoint->setTargetLink(fsm->getLinkbyID(atoi(QXMLLoad::getAttributeValue("linkid",*it2))));
//-- Color
addedTrackpoint->setColor(atoi(QXMLLoad::getAttributeValue("color",*it2)));
//-- Hierarchy
}
}
// EOF Joins
//---- Transitions
//--------------------
QList<QDomElement> transitions = QXMLLoad::getChildElements("trans",fsmElement);
loopcounter =0;
for (QList<QDomElement>::iterator it=transitions.begin();it!=transitions.end();it++,loopcounter++) {
//-- Create trans and set params
//cout << "Trans: " <<atoi(QXMLLoad::getChildText("start",*it)) <<"->" <<atoi(QXMLLoad::getChildText("end",*it)) << ", Default: "<< (atoi(QXMLLoad::getChildText("default",*it))==1?true:false) <<endl;
//-- Get start and end
State * start = fsm->getStatebyID(atoi(QXMLLoad::getChildText("start",*it).c_str()));
State * end = fsm->getStatebyID(atoi(QXMLLoad::getChildText("end",*it).c_str()));
//-- Create
Trans * addedTransition = new Trans(start,end);
addedTransition->setId(atoi(QXMLLoad::getAttributeValue("id",*it)));
//-- Text
addedTransition->setName(string(QXMLLoad::getChildText("name",*it)));
addedTransition->setTextPosition((double)atof(QXMLLoad::getAttributeValue("textposx",*it)),
(double)atof(QXMLLoad::getAttributeValue("textposy",*it)));
//-- Default
addedTransition->setDefault((atoi(QXMLLoad::getChildText("default",*it).c_str())==1?true:false));
//-- Add to FSM
fsm->addTrans(addedTransition);
//---- Manage trackpoints
//---------------------------
QList<QDomElement> trackpoints = QXMLLoad::getChildElements("trackpoint",*it);
int loopcounter2 =0;
for (QList<QDomElement>::iterator it2=trackpoints.begin();it2!=trackpoints.end();it2++,loopcounter2++) {
//-- Add
Trackpoint * addedTrackpoint = addedTransition->appendTrackpoint(
(double)atof(QXMLLoad::getAttributeValue("posx",*it2)),
(double)atof(QXMLLoad::getAttributeValue("posy",*it2)));
//-- Link ?
bool link = atoi(QXMLLoad::getAttributeValue("link",*it2))==1?true:false;
if (link) {
addedTrackpoint->setTargetLink(fsm->getLinkbyID(atoi(QXMLLoad::getAttributeValue("linkid",*it2))));
}
//-- Join
int joinid = atoi(QXMLLoad::getAttributeValue("join",*it2));
addedTrackpoint->setJoin(fsm->getJoin(joinid));
//-- Color
addedTrackpoint->setColor(atoi(QXMLLoad::getAttributeValue("color",*it2)));
}
//-- Conditions
QList<QDomElement> conditions = QXMLLoad::getChildElements("condition",*it);
loopcounter2 =0;
for (QList<QDomElement>::iterator it2=conditions.begin();it2!=conditions.end();it2++,loopcounter2++) {
// add
Condition * condition = addedTransition->addCondition(fsm->getNumberOfInputs());
condition->setName(QXMLLoad::getChildText("cname",*it2));
condition->setInput(QXMLLoad::getChildText("input",*it2));
} // EO Conditions --//
} // EO Transitions --//
//-- FSM attributes
fsm->setName(QXMLLoad::getAttributeValue("fname",fsmElement));
fsm->setResetState(atoi(QXMLLoad::getAttributeValue("resetstate",fsmElement)));
}
int main() {
Join* test = new Join();
test->foo();
return 0;
}
// LCOV_EXCL_START :cnu
EstLogPropSharedPtr AppliedStatMan::joinEstLogProps (
const EstLogPropSharedPtr& leftEstLogProp,
const EstLogPropSharedPtr& rightEstLogProp,
const EstLogPropSharedPtr& inLP)
{
EstLogPropSharedPtr outputEstLogProp;
NABoolean cacheable = FALSE;
CANodeIdSet * inputNodeSet = inLP->getNodeSet();
// These nodesets could be NULL, if the estLogProps to which they
// belong are not cacheable
CANodeIdSet * leftNodeSet = leftEstLogProp->getNodeSet();
CANodeIdSet * rightNodeSet = rightEstLogProp->getNodeSet();
if ((leftEstLogProp->isCacheable()) &&
(rightEstLogProp->isCacheable()) &&
(inLP->isCacheable()) )
{
CCMPASSERT(leftNodeSet != NULL);
CCMPASSERT(rightNodeSet != NULL);
CCMPASSERT(inputNodeSet != NULL);
if (leftNodeSet && rightNodeSet && inputNodeSet)
{
cacheable = TRUE;
}
}
if (cacheable)
{
// check the ASM cache to see if outputEstLogProp for these
// NodeSets appear for the given inputEstLogProp
CANodeIdSet combineNodeSet = *leftNodeSet;
combineNodeSet.insert(*rightNodeSet);
CANodeIdSet combinedWithInputNodeSet = combineNodeSet;
combinedWithInputNodeSet.insert(*inputNodeSet);
outputEstLogProp = getCachedStatistics(&combinedWithInputNodeSet);
if (outputEstLogProp != NULL)
return outputEstLogProp;
}
JBBSubset * newJBBSubset = NULL;
ValueIdSet setOfPredicates;
if (leftNodeSet && rightNodeSet)
{
// join predicates can be obtained from EstLogProp, only
// if these corresponded to complete set of predicates -
// all local or complete join. Also, we need a
// combinedJBBSubset to set in the fake join expression
// that we will be creating.
newJBBSubset = leftNodeSet->computeJBBSubset();
JBBSubset rightJBBSubset = *(rightNodeSet->computeJBBSubset());
setOfPredicates = newJBBSubset->joinPredsWithOther(rightJBBSubset);
// Since the properties from this group are cacheable, hence the
// group attributes for the new join expression should contain
// the combined JBBsubset of the left and the right children
newJBBSubset->addSubset(rightJBBSubset);
}
// inputEstLogProp would be either empty input estLogProp or from the
// outer child. If cacheable is TRUE, then newJBBsubset should
// contain the combined left and the right JBB subset. But if
// cacheable is FALSE, newJBBsubset should be NULL
Join * joinExpr = formJoinExprWithEstLogProps(
leftEstLogProp,
rightEstLogProp,
inLP,
&setOfPredicates,
cacheable,
newJBBSubset);
// Now do the actual synthesis and cache statistics in the cache
outputEstLogProp = joinExpr->getGroupAttr()->outputLogProp(inLP);
return outputEstLogProp;
}
Join* MultiJoin::splitSubset(const JBBSubset & leftSet,
const JBBSubset & rightSet,
NABoolean reUseMJ) const
{
// At this point assert that none of the subsets has a group by member
CMPASSERT ( (jbbSubset_.getGB() == NULL_CA_ID) &&
(leftSet.getGB() == NULL_CA_ID) &&
(rightSet.getGB() == NULL_CA_ID) );
#ifndef NDEBUG
// assert that left + right == subSet_
// and left intersect right = phi
CANodeIdSet unionSet(leftSet.getJBBCs());
CANodeIdSet intersectSet(leftSet.getJBBCs());
unionSet += rightSet.getJBBCs();
intersectSet.intersectSet(rightSet.getJBBCs());
CMPASSERT ( (unionSet == jbbSubset_.getJBBCs()) &&
(intersectSet.entries() == 0 ));
#endif
// Note: Joins including left, semi, anti semi are only created when
// a single jbbc connected via one of them is split as a single right
// child. InnerNonSemi joins can be created for any split i.e. any
// number of jbbcs on the left and the right of the join, but special
// joins (i.e. left, semi and anti semi joins) are only created when
// there is a single right child i.e. the rightSet contains only one
// jbbc that is connected via a special join. This is enforced as follows
//
// * The leftSet should be legal: This means that for every jbbc in the
// leftSet any predecessor jbbcs should be present in the leftSet.
// * The rightSet is either a single jbbc or if the rightSet has more
// than one jbbc then it should be legal, note that a jbbc connected
// via a special join is not a legal set by itself but we allow
// creation of special joins assuming the predecessors are present
// in the leftSet.
//
// An implicit assumption here is that 'this' MultiJoin is legal, which
// is fair since apart from the top level multijoin, rest of the multijoins
// are produced by splitting the top level multijoin. This method should
// not produce illegal multijoins, since we check both leftSet and rightSet
// for legality. Only time we don't check for legality is when the rightChild
// is a single jbbc, and a single jbbc does not result in a multijoin.
if(!leftSet.legal())
return NULL;
if((rightSet.getJBBCs().entries() > 1) && (!rightSet.legal()))
return NULL;
// everything here goes to statement heap
CollHeap* outHeap = CmpCommon::statementHeap();
RelExpr* child0 = generateSubsetExpr(leftSet, reUseMJ);
RelExpr* child1 = generateSubsetExpr(rightSet, reUseMJ);
// Flag to remember to pass on the derivedFromRoutineJoin flag if needed.
NABoolean derivedFromRoutineJoin(FALSE);
// now form a JoinExpr with these left and right children.
Join * result = NULL;
// if the rightSet is a single jbbc, then it could be connected via
// a special join. In such a case we have to create the appropriate
// join operator
if(rightSet.getJBBCs().entries() == 1){
JBBC * rightChild = rightSet.getJBBCs().getFirst().getNodeAnalysis()
->getJBBC();
Join * rightChildParentJoin = rightChild->getOriginalParentJoin();
// If rightChildParentJoin is NULL, then the child is the left
// child of the left most join and is considered to be connected
// via a InnerNonSemi join.
if(rightChildParentJoin)
{
if(rightChildParentJoin->derivedFromRoutineJoin())
derivedFromRoutineJoin = TRUE;
if(rightChildParentJoin->isSemiJoin())
result = new (outHeap) Join(child0, child1, REL_SEMIJOIN, NULL);
if(rightChildParentJoin->isAntiSemiJoin())
result = new (outHeap) Join(child0, child1, REL_ANTI_SEMIJOIN, NULL);
if(rightChildParentJoin->isLeftJoin())
{
// left joins can have filter preds, i.e. predicates that
// are applied as filters after applying the join predicate.
// We need to set them here.
result = new (outHeap) Join(child0, child1, REL_LEFT_JOIN, NULL);
result->setSelectionPredicates(rightChild->getLeftJoinFilterPreds());
}
if(rightChildParentJoin->isRoutineJoin())
{
derivedFromRoutineJoin = TRUE;
result = new (outHeap) Join(child0, child1, REL_ROUTINE_JOIN, NULL);
ValueIdSet routineJoinFilterPreds = rightChild->getRoutineJoinFilterPreds();
ValueIdSet predsToAddToRoutineJoin;
// add covered filter preds
for (ValueId filterPred= routineJoinFilterPreds.init();
routineJoinFilterPreds.next(filterPred);
routineJoinFilterPreds.advance(filterPred) )
{
if(jbbSubset_.coversExpr(filterPred))
predsToAddToRoutineJoin += filterPred;
}
result->setSelectionPredicates(predsToAddToRoutineJoin);
}
if(result)
{
// set the join predicate for special joins, note predicates
// for regular InnerNonSemi joins are set as selection predicates
// in the join relexpr.
result->setJoinPred(rightChild->getPredsWithPredecessors());
result->nullInstantiatedOutput().insert(rightChild->
nullInstantiatedOutput());
}
}
}
// The join to be created is a regular InnerNonSemi join
if (!result)
result = new (outHeap) Join(child0, child1, REL_JOIN, NULL);
// Make sure we carry the derivedFromRoutineJoin flag with us
if (derivedFromRoutineJoin)
result->setDerivedFromRoutineJoin();
// Share my groupAttr with result
result->setGroupAttr(getGroupAttr());
// get inner join predicates
ValueIdSet selPreds = rightSet.joinPredsWithOther(leftSet);
// get left join filter preds if any
selPreds += result->getSelectionPredicates();
result->setSelectionPredicates(selPreds);
result->findEquiJoinPredicates();
// May be I could save a little if i pushdown only to the child(ren)
// that are not already JBBCs, i.e. multijoins
result->pushdownCoveredExpr
(result->getGroupAttr()->getCharacteristicOutputs(),
result->getGroupAttr()->getCharacteristicInputs(),
result->selectionPred());
// We used CutOp as children, to avoid pushing predicates to JBBCs.
// Now put the actual expression back in case the child is a JBBCs
if(leftSet.getJBBCs().entries() == 1)
result->setChild(0, getJBBCRelExpr(leftSet.getJBBCs().getFirst()));
// We used CutOp as children, to avoid pushing predicates to JBBCs.
// Now put the actual expression back in case the child is a JBBCs
if(rightSet.getJBBCs().entries() == 1)
result->setChild(1, getJBBCRelExpr(rightSet.getJBBCs().getFirst()));
// Temp fixup. We need to take the selectionPred out of MultiJoin
// for now to prevent that pushed expr from being there. selectionPred
// is not being used now in MultiJoin xxx.
if (leftSet.getJBBCs().entries() > 1)
result->child(0)->selectionPred().clear();
if (rightSet.getJBBCs().entries() > 1)
result->child(1)->selectionPred().clear();
return result;
}
void ChatClient::on_joinButton_clicked()
{
Join *j;
Confirm *c;
INet4Address *servaddr;
Connection *myConnection;
char* buffer; //for encoded messages
int bytesToSend;
int bytesToReceive;
int bytesReceived;
//Get the strings out of the address, port and nickname
//boxes and convert to strings;
QString qip = ui.addresLine->text();
QString qport = ui.portLine->text();
QString qnick = ui.nicknameLine->text();
//Create new connection objects
servaddr = new INet4Address(qip.toLatin1().data(),qport.toInt());
myConnection = new Connection(servaddr);
//Connect to server
if(myConnection->createSocket() < 0)
{
printf("Socket Error\n");
return;
}
if(myConnection->connectSocket() < 0)
{
printf("Connect Error\n");
delete(myConnection);
delete(servaddr);
return;
}
//Make a join message
j = new Join();
j->setNickname(qnick.toLatin1().data());
//Send join message (as bytes)
bytesToSend = j->encode(&buffer);
printf("Buffer: %s, Nick: %s ",buffer, j->getNickname());
myConnection->writeSize(bytesToSend);
myConnection->writen(buffer,bytesToSend);
delete(buffer);
//Read response - take action!
//Read byte count
bytesToReceive = myConnection->readSize();
buffer = new char[bytesToReceive];
//Read message
bytesReceived=myConnection->readn(buffer,bytesToReceive);
if(bytesReceived < bytesToReceive)
printf("Server response truncated!");
//Convert to message (confirm)
c = new Confirm();
c->decode(buffer,bytesToReceive);
//Destroy socket
myConnection->closeSocket();
//check if nick accepted
if(c->getResponse()==true)
{
nickAccepted = true;
ui.addresLine->setEnabled(false);
ui.portLine->setEnabled(false);
ui.nicknameLine->setEnabled(false);
ui.joinButton->setEnabled(false);
//Turn on the timer
timer->start();
}
else
{
nickAccepted = false;
ui.nicknameLine->setText(tr("Rejected!"));
}
delete myConnection;
delete servaddr;
}
// This method forms the join expression with the estLogProps.
Join * AppliedStatMan::formJoinExprWithEstLogProps(
const EstLogPropSharedPtr& leftEstLogProp,
const EstLogPropSharedPtr& rightEstLogProp,
const EstLogPropSharedPtr& inputEstLogProp,
const ValueIdSet * setOfPredicates,
const NABoolean cacheable,
JBBSubset * combinedJBBSubset)
{
// Form a join expression with these estLogProps.
// form the left child. Since the estLogProps of the left and the
// right children exist, these can be treated as Scan expressions
Scan * leftChildExpr = new STMTHEAP Scan();
GroupAttributes * galeft = new STMTHEAP GroupAttributes();
// set GroupAttr of the leftChild
galeft->inputLogPropList().insert(inputEstLogProp);
galeft->outputLogPropList().insert(leftEstLogProp);
CANodeIdSet * leftNodeSet = leftEstLogProp->getNodeSet();
CANodeId nodeId;
if (leftNodeSet)
{
if (leftNodeSet->entries() == 1)
{
nodeId = leftNodeSet->getFirst();
if(nodeId.getNodeAnalysis()->getTableAnalysis())
leftChildExpr->setTableAttributes(nodeId);
}
CostScalar minEstCard = leftNodeSet->getMinChildEstRowCount();
galeft->setMinChildEstRowCount(minEstCard);
}
leftChildExpr->setGroupAttr(galeft);
galeft->setLogExprForSynthesis(leftChildExpr);
// form the right child and set its groupAttr
Scan * rightChildExpr = new STMTHEAP Scan();
GroupAttributes * garight = new STMTHEAP GroupAttributes();
garight->inputLogPropList().insert(inputEstLogProp);
garight->outputLogPropList().insert(rightEstLogProp);
CANodeIdSet * rightNodeSet = rightEstLogProp->getNodeSet();
// xxx
JBBC * singleRightChild = NULL;
Join * singleRightChildParentJoin = NULL;
ValueIdSet leftOuterJoinFilterPreds;
if (rightNodeSet)
{
if (rightNodeSet->entries() == 1)
{
nodeId = rightNodeSet->getFirst();
if(nodeId.getNodeAnalysis()->getTableAnalysis())
rightChildExpr->setTableAttributes(nodeId);
if(nodeId.getNodeAnalysis()->getJBBC())
{
singleRightChild = nodeId.getNodeAnalysis()->getJBBC();
if(singleRightChild)
singleRightChildParentJoin = singleRightChild->getOriginalParentJoin();
}
}
CostScalar minEstCard = rightNodeSet->getMinChildEstRowCount();
garight->setMinChildEstRowCount(minEstCard);
}
rightChildExpr->setGroupAttr(garight);
garight->setLogExprForSynthesis(rightChildExpr);
Join * joinExpr = NULL;
if(singleRightChild &&
singleRightChildParentJoin)
{
if(singleRightChildParentJoin->isSemiJoin())
joinExpr = new STMTHEAP Join(leftChildExpr,
rightChildExpr,
REL_SEMIJOIN,
NULL);
if(singleRightChildParentJoin->isAntiSemiJoin())
joinExpr = new STMTHEAP Join(leftChildExpr,
rightChildExpr,
REL_ANTI_SEMIJOIN,
NULL);
if(singleRightChildParentJoin->isLeftJoin())
{
joinExpr = new STMTHEAP Join(leftChildExpr,
rightChildExpr,
REL_LEFT_JOIN,
NULL);
leftOuterJoinFilterPreds += singleRightChild->getLeftJoinFilterPreds();
}
if(joinExpr)
{
joinExpr->setJoinPred(singleRightChild->getPredsWithPredecessors());
joinExpr->nullInstantiatedOutput().insert(singleRightChild->
nullInstantiatedOutput());
}
}
if(!joinExpr)
{
// now form a JoinExpr with these left and right children.
joinExpr = new STMTHEAP Join(leftChildExpr, // left child
rightChildExpr, // right child
REL_JOIN, // join type
NULL); // join predicates
}
ValueIdSet selPredsAndLOJFilter = leftOuterJoinFilterPreds;
selPredsAndLOJFilter += (*setOfPredicates);
joinExpr->setSelectionPredicates(selPredsAndLOJFilter);
// set groupAttr of this Join expression
GroupAttributes * gaJoin = new STMTHEAP GroupAttributes();
// set required outputs of Join as sum of characteristic
// outputs of the left and the right children
ValueIdSet requiredOutputs;
if (leftNodeSet)
requiredOutputs.addSet(getPotentialOutputs(*(leftNodeSet)));
if (rightNodeSet)
requiredOutputs.addSet(getPotentialOutputs(*(rightNodeSet)));
gaJoin->setCharacteristicOutputs(requiredOutputs);
// set JBBSubset for this group, if all estLogProps are cacheable.
// Else JBBSubset is NULL
if (cacheable)
gaJoin->getGroupAnalysis()->setLocalJBBView(combinedJBBSubset);
gaJoin->setMinChildEstRowCount(MINOF(garight->getMinChildEstRowCount(), galeft->getMinChildEstRowCount() ) );
joinExpr->setGroupAttr(gaJoin);
// if there are some probes coming into the join
// then join type = tsj.
if ((inputEstLogProp->getResultCardinality() > 1) ||
(inputEstLogProp->getColStats().entries() > 1))
{
if (cacheable)
{
CANodeIdSet inputNodeSet = *(inputEstLogProp->getNodeSet());
gaJoin->setCharacteristicInputs(getPotentialOutputs(inputNodeSet));
}
}
joinExpr->setGroupAttr(gaJoin);
gaJoin->setLogExprForSynthesis(joinExpr);
return joinExpr;
} // AppliedStatMan::formJoinExprWithEstLogProps
Join* MultiJoin::createLeftLinearJoinTree
(const NAList<CANodeIdSet> * const leftDeepJoinSequence,
NAList<MJJoinDirective *> * joinDirectives) const
{
Join* result = NULL;
Join* currentJoin=NULL;
NABoolean reUseMultiJoins = FALSE;
//Set of all JBBCs in this multi-join.
//This set will be broken up to make the join tree
//representing the substitue.
//The loop below will construct the join tree,
//starting from the top join.
CANodeIdSet childSet = getJBBSubset().getJBBCs();
// variables used in loop below
MultiJoin * currentMJoin = (MultiJoin *) this;
// in an iteration this is the parent join
// e.g. when we are create JOIN3, this will
// be JOIN2
Join * parentJoin = NULL;
#ifdef _DEBUG
if ( CmpCommon::getDefault( NSK_DBG ) == DF_ON &&
CmpCommon::getDefault( NSK_DBG_MJRULES_TRACKING ) == DF_ON )
{
// LCOV_EXCL_START - dpm
CURRCONTEXT_OPTDEBUG->stream() << "Following is left deep join sequence: " << endl;
CURRCONTEXT_OPTDEBUG->stream() << endl;
// LCOV_EXCL_STOP
}
#endif
UInt32 numJoinChildren = leftDeepJoinSequence->entries();
CANodeId currentTable = NULL_CA_ID;
for (UInt32 i = 0; i < (numJoinChildren-1); i++)
{
//create JBBSubset representing a comprising component of the
//leftDeepJoinSequence.
JBBSubset * joinRightChild = ((*leftDeepJoinSequence)[i]).computeJBBSubset();
MJJoinDirective * joinDirective = (*joinDirectives)[i];
//remove all tables that will become right side of join
childSet.remove((*leftDeepJoinSequence)[i]);
#ifdef _DEBUG
//print the right child of the current join
if ( CmpCommon::getDefault( NSK_DBG ) == DF_ON &&
CmpCommon::getDefault( NSK_DBG_MJRULES_TRACKING ) == DF_ON )
{
CURRCONTEXT_OPTDEBUG->stream() << ((*leftDeepJoinSequence)[i]).getText() << endl; // LCOV_EXCL_LINE - dpm
}
#endif
//Get JBBSubset for left side of join
JBBSubset * joinLeftChild = childSet.computeJBBSubset();
//create the join by doing a split of the multi-join
currentJoin = currentMJoin->splitSubset(*joinLeftChild, *joinRightChild, reUseMultiJoins);
joinDirective->setupJoin(currentJoin);
if ( CmpCommon::getDefault(COMP_BOOL_120) == DF_OFF)
currentJoin->updatePotential(-3);
// if this is the first iteration
// set the result to be the top join
if (i == 0)
result = currentJoin;
//set the current multi-join to the left child of the
//join just created
//change getChild to child().getPointer
currentMJoin = (MultiJoin*) currentJoin->getChild(0);
//if there was a parent join, set the left child to
//point to the new join we just created i.e. currentJoin.
if (parentJoin)
parentJoin->setChild(0,currentJoin);
//set currentJoin to be the parent for the next iteration
parentJoin = currentJoin;
}
#ifdef _DEBUG
//print the left most child
if ( CmpCommon::getDefault( NSK_DBG ) == DF_ON &&
CmpCommon::getDefault( NSK_DBG_MJRULES_TRACKING ) == DF_ON )
{
// LCOV_EXCL_START - dpm
CURRCONTEXT_OPTDEBUG->stream() << ((*leftDeepJoinSequence)[(numJoinChildren-1)]).getText() << endl;
CURRCONTEXT_OPTDEBUG->stream() << endl;
// LCOV_EXCL_STOP
}
#endif
// end - construct the join tree
// synth the join
result->synthLogProp();
//if the right child of the top-most join is a multi-Join,
//synthesize_it
if(result->child(1))
if(result->child(1)->getOperatorType()==REL_MULTI_JOIN)
result->child(1)->synthLogProp();
// synth the left child too
result->child(0)->synthLogProp();
return result;
} // MultiJoin::createLeftLinearJoinTree()