/**
* addToNodeMap.
*
* @param basicOperator a {@link lupos.engine.operators.BasicOperator} object.
* @param mapStartNodes a {@link java.util.Map} object.
*/
public static void addToNodeMap(
final BasicOperator basicOperator,
final Map<Class<? extends BasicOperator>, Set<BasicOperator>> mapStartNodes) {
Set<BasicOperator> set = mapStartNodes.get(basicOperator.getClass());
if (set == null) {
set = new HashSet<BasicOperator>();
}
set.add(basicOperator);
mapStartNodes.put(basicOperator.getClass(), set);
set = mapStartNodes.get(BasicOperator.class);
if (set == null) {
set = new HashSet<BasicOperator>();
}
set.add(basicOperator);
mapStartNodes.put(BasicOperator.class, set);
if (basicOperator instanceof Join
&&
// exclude special case:
basicOperator
.getClass()
.getPackage()
.getName()
.compareTo("lupos.engine.operators.multiinput.join.parallel")
!= 0) {
set = mapStartNodes.get(Join.class);
if (set == null) {
set = new HashSet<BasicOperator>();
}
set.add(basicOperator);
mapStartNodes.put(Join.class, set);
}
if (basicOperator instanceof Optional
||
// include special case:
basicOperator
.getClass()
.getPackage()
.getName()
.compareTo("lupos.engine.operators.multiinput.optional.parallel")
== 0) {
set = mapStartNodes.get(Optional.class);
if (set == null) {
set = new HashSet<BasicOperator>();
}
set.add(basicOperator);
mapStartNodes.put(Optional.class, set);
}
}
/**
* deleteFromNodeMap.
*
* @param basicOperator a {@link lupos.engine.operators.BasicOperator} object.
* @param mapStartNodes a {@link java.util.Map} object.
*/
public static void deleteFromNodeMap(
final BasicOperator basicOperator,
final Map<Class<? extends BasicOperator>, Set<BasicOperator>> mapStartNodes) {
Set<BasicOperator> set = mapStartNodes.get(basicOperator.getClass());
if (set != null) {
set.remove(basicOperator);
if (set.size() > 0) mapStartNodes.put(basicOperator.getClass(), set);
else mapStartNodes.remove(basicOperator.getClass());
}
set = mapStartNodes.get(BasicOperator.class);
if (set != null) {
set.remove(basicOperator);
mapStartNodes.put(BasicOperator.class, set);
}
if (basicOperator instanceof Join
&&
// exclude special case:
basicOperator
.getClass()
.getPackage()
.getName()
.compareTo("lupos.engine.operators.multiinput.optional.parallel")
!= 0) {
set = mapStartNodes.get(Join.class);
if (set != null) {
set.remove(basicOperator);
if (set.size() > 0) mapStartNodes.put(Join.class, set);
else mapStartNodes.remove(Join.class);
}
}
if (basicOperator instanceof Optional
||
// include special case:
basicOperator
.getClass()
.getPackage()
.getName()
.compareTo("lupos.engine.operators.multiinput.optional.parallel")
== 0) {
set = mapStartNodes.get(Optional.class);
if (set != null) {
set.remove(basicOperator);
if (set.size() > 0) mapStartNodes.put(Optional.class, set);
else mapStartNodes.remove(Optional.class);
}
}
}
/**
* checkIfInNodeMap.
*
* @param basicOperator a {@link lupos.engine.operators.BasicOperator} object.
* @param mapStartNodes a {@link java.util.Map} object.
* @return a boolean.
*/
public static boolean checkIfInNodeMap(
final BasicOperator basicOperator,
final Map<Class<? extends BasicOperator>, Set<BasicOperator>> mapStartNodes) {
Set<BasicOperator> set = mapStartNodes.get(basicOperator.getClass());
if (set == null) {
return false;
}
if (!set.contains(basicOperator)) return false;
set = mapStartNodes.get(BasicOperator.class);
if (set == null) {
return false;
}
if (!set.contains(basicOperator)) return false;
if (basicOperator instanceof Join
&&
// exclude special case:
basicOperator
.getClass()
.getPackage()
.getName()
.compareTo("lupos.engine.operators.multiinput.optional.parallel")
!= 0) {
set = mapStartNodes.get(Join.class);
if (set == null) {
return false;
}
if (!set.contains(basicOperator)) return false;
}
if (basicOperator instanceof Optional
||
// include special case:
basicOperator
.getClass()
.getPackage()
.getName()
.compareTo("lupos.engine.operators.multiinput.optional.parallel")
== 0) {
set = mapStartNodes.get(Optional.class);
if (set == null) {
return false;
}
if (!set.contains(basicOperator)) return false;
}
return true;
}
private boolean _checkPrivate0(BasicOperator _op) {
if (_op.getClass() != lupos.engine.operators.singleinput.Filter.class) {
return false;
}
this.f = (lupos.engine.operators.singleinput.Filter) _op;
List<BasicOperator> _precedingOperators_1_0 = _op.getPrecedingOperators();
this._dim_0 = -1;
this.o1 = new lupos.engine.operators.BasicOperator[_precedingOperators_1_0.size()];
for (BasicOperator _precOp_1_0 : _precedingOperators_1_0) {
this._dim_0 += 1;
if (!this._checkPrivate1(_precOp_1_0)) {
return false;
}
}
List<OperatorIDTuple> _succedingOperators_1_0 = _op.getSucceedingOperators();
this._dim_0 = -1;
this.o2 = new lupos.engine.operators.BasicOperator[_succedingOperators_1_0.size()];
for (OperatorIDTuple _sucOpIDTup_1_0 : _succedingOperators_1_0) {
this._dim_0 += 1;
if (!this._checkPrivate2(_sucOpIDTup_1_0.getOperator())) {
return false;
}
}
return true;
}
/** {@inheritDoc} */
@SuppressWarnings("rawtypes")
@Override
public JSONObject serialize(final BasicOperator operator, final int node_id)
throws JSONException {
final JSONObject json = new JSONObject();
/*
* store preceeding's and remove them from the subgraph, because they
* are not to be serialized (but they are added later)
*/
final List<BasicOperator> storePrecds =
new LinkedList<BasicOperator>(((SubgraphContainer) operator).getPrecedingOperators());
for (final BasicOperator op : storePrecds) {
((SubgraphContainer) operator).removePrecedingOperator(op);
}
/*
* store succeeding's and remove them from the subgraph (see above)
*/
final List<OperatorIDTuple> storeSuccs =
new LinkedList<OperatorIDTuple>(((SubgraphContainer) operator).getSucceedingOperators());
for (final OperatorIDTuple op : storeSuccs) {
((SubgraphContainer) operator).removeSucceedingOperator(op);
}
json.put("type", operator.getClass().getName());
json.put("node_id", node_id);
/*
* now serialize the subgraph container
*/
final SubgraphContainerFormatter serializer = new SubgraphContainerFormatter();
final JSONObject serializedGraph =
serializer.serialize(((SubgraphContainer) operator).getRootOfSubgraph(), 0);
json.put("subgraph", serializedGraph);
/*
* now serialize the subgraph container's key
*/
final Object key = ((SubgraphContainer) operator).getKey();
try {
final String sgKey = JsonWriter.objectToJson(key);
json.put("key", sgKey);
} catch (final IOException e) {
json.put("key", "Not serializable.");
propagate(
new RuntimeException(
String.format("The key of subgraphContainer %s is not serialzable.", operator)));
}
// now add the connections ... we have removed above.
for (final BasicOperator op : storePrecds) {
((SubgraphContainer) operator).addPrecedingOperator(op);
}
for (final OperatorIDTuple op : storeSuccs) {
((SubgraphContainer) operator).addSucceedingOperator(op);
}
return json;
}
private boolean _checkPrivate0(BasicOperator _op) {
if (_op.getClass() != lupos.rif.operator.PredicatePattern.class) {
return false;
}
this.p = (lupos.rif.operator.PredicatePattern) _op;
List<BasicOperator> _precedingOperators_1_0 = _op.getPrecedingOperators();
this._dim_0 = -1;
this.o1 = new lupos.engine.operators.BasicOperator[_precedingOperators_1_0.size()];
for (BasicOperator _precOp_1_0 : _precedingOperators_1_0) {
this._dim_0 += 1;
if (!this._checkPrivate1(_precOp_1_0)) {
return false;
}
}
List<OperatorIDTuple> _succedingOperators_1_0 = _op.getSucceedingOperators();
if (_succedingOperators_1_0.size() != 1) {
return false;
}
for (OperatorIDTuple _sucOpIDTup_1_0 : _succedingOperators_1_0) {
if (!(_sucOpIDTup_1_0.getOperator() instanceof lupos.engine.operators.BasicOperator)) {
continue;
}
this.o2 = (lupos.engine.operators.BasicOperator) _sucOpIDTup_1_0.getOperator();
return true;
}
return false;
}