*******************************************************************************/
package org.simantics.db.impl.query;
-import java.util.ArrayList;
-import java.util.concurrent.Semaphore;
+import java.util.concurrent.atomic.AtomicInteger;
import org.simantics.db.common.exception.DebugException;
+import org.simantics.db.exception.DatabaseException;
import org.simantics.db.impl.graph.ReadGraphImpl;
-import org.simantics.db.impl.procedure.IntProcedureAdapter;
-import org.simantics.db.procedure.ListenerBase;
-final public class OrderedSet extends CollectionUnaryQuery<IntProcedure> {
+final public class OrderedSet extends CollectionUnaryQuery {
-// public ArrayList<IntProcedure> procs = null;
-
public OrderedSet(final int r) {
super(r);
}
- final static OrderedSet entry(final QueryProcessor provider, final int r) {
-
- return (OrderedSet)provider.orderedSetMap.get(r);
-
- }
-
- final static void runner(ReadGraphImpl graph, final int r, final QueryProcessor provider, OrderedSet cached, final CacheEntry parent, ListenerBase listener, final IntProcedure procedure) {
-
- OrderedSet entry = cached != null ? cached : (OrderedSet)provider.orderedSetMap.get(r);
- if(entry == null) {
-
- entry = new OrderedSet(r);
- entry.setPending();
- entry.clearResult(provider.querySupport);
- entry.putEntry(provider);
-
- provider.performForEach(graph, entry, parent, listener, procedure);
-
- } else {
-
- if(entry.isPending()) {
- synchronized(entry) {
- if(entry.isPending()) {
- throw new IllegalStateException();
-// if(entry.procs == null) entry.procs = new ArrayList<IntProcedure>();
-// entry.procs.add(procedure);
-// provider.registerDependencies(graph, entry, parent, listener, procedure, false);
-// return;
- }
- }
- }
- provider.performForEach(graph, entry, parent, listener, procedure);
- }
-
- }
-
- final public static void queryEach(ReadGraphImpl graph, final int r, final QueryProcessor provider, final CacheEntry parent, final ListenerBase listener, final IntProcedure procedure) {
-
- assert(r != 0);
-
- final OrderedSet entry = (OrderedSet)provider.orderedSetMap.get(r);
-
- if(parent == null && !(listener != null)) {
- if(entry != null && entry.isReady()) {
- entry.performFromCache(graph, provider, procedure);
- return;
- }
- }
-
- runner(graph, r, provider, entry, parent, listener, procedure);
-
- }
-
- @Override
- public UnaryQuery<IntProcedure> getEntry(QueryProcessor provider) {
- return provider.orderedSetMap.get(id);
- }
-
- @Override
- public void putEntry(QueryProcessor provider) {
- provider.orderedSetMap.put(id, this);
- }
-
@Override
final public void removeEntry(QueryProcessor provider) {
- provider.orderedSetMap.remove(id);
+ provider.cache.remove(this);
}
-
- private int current = 0;
- private boolean nextElement(ReadGraphImpl graph, final QueryProcessor provider, final IntProcedure procedure, final boolean store) {
+ private static int nextElement(ReadGraphImpl graph, int current, int orderedSet, OrderedSet parent, final IntProcedure procedure) throws DatabaseException {
- provider.querySupport.ensureLoaded(graph, current);
+ QueryProcessor processor = graph.processor;
+
+ processor.querySupport.ensureLoaded(graph, current);
- boolean found = provider.querySupport.getObjects(graph, current, id, new IntProcedure() {
+ AtomicInteger res = new AtomicInteger(0);
+
+ processor.querySupport.getObjects(graph, current, orderedSet, new IntProcedure() {
@Override
- public void execute(ReadGraphImpl graph, int i) {
- if(i != id) {
- addOrSet(i);
+ public void execute(ReadGraphImpl graph, int i) throws DatabaseException {
+ if(i != orderedSet) {
procedure.execute(graph, i);
}
- current = i;
+ res.set(i);
}
@Override
- public void exception(ReadGraphImpl graph, Throwable t) {
+ public void exception(ReadGraphImpl graph, Throwable t) throws DatabaseException {
if(DebugException.DEBUG) new DebugException(t).printStackTrace();
procedure.exception(graph, t);
}
});
- if(!found) current = id;
-
- if(current == id) {
- finish(graph, provider);
+ if(res.get() == orderedSet) {
procedure.finished(graph);
- return false;
- } else {
- return true;
}
+
+ return res.get();
}
@Override
- public void clearResult(QuerySupport support) {
- current = id;
- setResult(new IntArray());
+ public void compute(ReadGraphImpl graph, final IntProcedure procedure) throws DatabaseException {
+ computeForEach(graph, id, this, procedure);
}
-
- @Override
- public Object computeForEach(ReadGraphImpl graph, final QueryProcessor provider, final IntProcedure procedure, final boolean store) {
- while(nextElement(graph, provider, procedure, store));
-
- return getResult();
+ static void computeForEach(ReadGraphImpl graph, int orderedSet, final OrderedSet entry, final IntProcedure procedure_) throws DatabaseException {
- }
-
- @Override
- public String toString() {
- return "OrderedSet[" + id + "]";
- }
-
- final private void finish(ReadGraphImpl graph, QueryProcessor provider) {
-
- assert(isPending());
-
-// ArrayList<IntProcedure> p = null;
-
- synchronized(this) {
+ IntProcedure procedure = entry != null ? entry : procedure_;
- setReady();
-// p = procs;
-// procs = null;
-
- }
-
-// if(p != null) {
-// IntArray v = (IntArray)getResult();
-// if(v.data == null) {
-// if(v.sizeOrData != IntArray.NO_DATA) {
-// for(IntProcedure proc : p) proc.execute(graph, v.sizeOrData);
-// }
-// } else {
-// for(IntProcedure proc : p) {
-// for(int i = 0;i < v.sizeOrData ; i++) proc.execute(graph, v.data[i]);
-// }
-// }
-// for(IntProcedure proc : p) proc.finished(graph);
-// }
-
- }
+ int current = nextElement(graph, orderedSet, orderedSet, entry, procedure);
+ while(current != orderedSet) {
+ current = nextElement(graph, current, orderedSet, entry, procedure);
+ }
- final public void addOrSet(int add) {
-
- assert(isPending());
-
- IntArray value = (IntArray)getResult();
- value.add(add);
-
- }
-
- @Override
- public Object performFromCache(ReadGraphImpl graph, QueryProcessor provider, final IntProcedure procedure) {
-
- assert(isReady());
-
- if(handleException(graph, procedure)) return EXCEPTED;
+ if(entry != null) entry.performFromCache(graph, procedure_);
- final IntArray value = (IntArray)getResult();
- if(value.data == null) {
- if(value.sizeOrData != IntArray.NO_DATA) procedure.execute(graph, value.sizeOrData);
- } else {
- for(int i = 0;i < value.sizeOrData ; i++) procedure.execute(graph, value.data[i]);
- }
-
- procedure.finished(graph);
-
- return value;
-
}
@Override
- public void recompute(ReadGraphImpl graph, QueryProcessor provider) {
-
- final Semaphore s = new Semaphore(0);
-
- computeForEach(graph, provider, new IntProcedureAdapter() {
-
- @Override
- public void finished(ReadGraphImpl graph) {
- s.release();
- }
-
- @Override
- public void exception(ReadGraphImpl graph, Throwable t) {
- throw new Error("Error in recompute.", t);
- }
-
- }, true);
-
- while(!s.tryAcquire()) {
- provider.resume(graph);
- }
-
+ public String toString() {
+ return "OrderedSet[" + id + "]";
}
}
Code Review / simantics / platform.git / blobdiff