/*******************************************************************************
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * Copyright (c) 2007, 2018 Association for Decentralized Information Management
* in Industry THTH ry.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
*******************************************************************************/
package org.simantics.db.impl.query;
-import java.util.concurrent.Semaphore;
-
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;
+import org.simantics.db.impl.procedure.InternalProcedure;
-final public class DirectPredicates extends CollectionUnaryQuery<IntProcedure> {
+public final class DirectPredicates extends UnaryQueryP<IntSet> {
- private DirectPredicates(final int resource) {
+ DirectPredicates(final int resource) {
super(resource);
}
- final static DirectPredicates entry(final QueryProcessor provider, final int r) {
-
- return (DirectPredicates)provider.directPredicatesMap.get(r);
-
- }
-
- final static void runner(ReadGraphImpl graph, final int r, final QueryProcessor provider, final CacheEntry parent, final ListenerBase listener, final IntProcedure procedure) {
-
- DirectPredicates entry = (DirectPredicates)provider.directPredicatesMap.get(r);
- if(entry == null) {
-
- entry = new DirectPredicates(r);
- entry.setPending();
- entry.clearResult(provider.querySupport);
- entry.putEntry(provider);
-
- provider.performForEach(graph, entry, parent, listener, procedure);
-
- } else {
-
- if(!entry.isReady()) {
- synchronized(entry) {
- if(!entry.isReady()) {
- provider.registerDependencies(graph, entry, parent, listener, procedure, false);
- entry.computeForEach(graph, provider, procedure, true);
- 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) {
-
- if(parent == null && listener == null) {
- DirectPredicates entry = (DirectPredicates)provider.directPredicatesMap.get(r);
- if(entry != null && entry.isReady()) {
- entry.performFromCache(graph, provider, procedure);
- return;
- } else {
- computeForEach(graph, r, null, procedure, false);
- return;
- }
- }
-
- runner(graph, r, provider, parent, listener, procedure);
-
- }
-
-
- @Override
- public void clearResult(QuerySupport support) {
- // The cached result is never used
- setResult(INVALID_RESULT);
- }
-
@Override
- public UnaryQuery<IntProcedure> getEntry(QueryProcessor provider) {
- return provider.directPredicatesMap.get(id);
+ public final void removeEntry(QueryProcessor provider) {
+ provider.cache.remove(this);
}
@Override
- public void putEntry(QueryProcessor provider) {
- provider.directPredicatesMap.put(id, this);
+ public void compute(ReadGraphImpl graph, InternalProcedure<IntSet> procedure) throws DatabaseException {
+ computeForEach(graph, id, this, procedure);
}
- @Override
- final public void removeEntry(QueryProcessor provider) {
- provider.directPredicatesMap.remove(id);
- }
+ public static Object computeForEach(ReadGraphImpl graph, int id, final DirectPredicates entry, final InternalProcedure<IntSet> procedure_) throws DatabaseException {
- @Override
- public Object computeForEach(ReadGraphImpl graph, QueryProcessor provider, IntProcedure procedure, boolean store) {
- return computeForEach(graph, id, this, procedure, store);
- }
-
- public static Object computeForEach(ReadGraphImpl graph, int id, final DirectPredicates entry, final IntProcedure procedure, final boolean store) {
+ InternalProcedure<IntSet> procedure = entry != null ? entry : procedure_;
graph.processor.querySupport.ensureLoaded(graph, id);
-
- final IntArray list = new IntArray();
+
+ final IntSet list = new IntSet(graph.processor.querySupport);
graph.processor.querySupport.getPredicates(graph, id, new IntProcedure() {
});
- if(entry != null)
- entry.finish(graph, graph.processor);
+ procedure.execute(graph, list);
- if(list.data == null) {
- if(list.sizeOrData != IntArray.NO_DATA) procedure.execute(graph, list.sizeOrData);
- } else {
- for(int i = 0;i < list.sizeOrData ; i++) procedure.execute(graph, list.data[i]);
- }
+ if(entry != null) entry.performFromCache(graph, procedure_);
- procedure.finished(graph);
-
return list;
}
return "DirectPredicates[" + id + "]";
}
- @Override
- public void setReady() {
- statusOrException = READY;
- }
-
- final private void finish(ReadGraphImpl graph, QueryProcessor provider) {
-
- setReady();
-
- }
-
- @Override
- public Object performFromCache(ReadGraphImpl graph, QueryProcessor provider, IntProcedure procedure) {
-
- assert(isReady());
-
- return computeForEach(graph, provider, procedure, false);
-
- }
-
- @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) {
- s.release();
- new Error("Error in recompute.", t).printStackTrace();
- }
-
- }, true);
-
- while(!s.tryAcquire()) {
- provider.resume(graph);
- }
-
- }
-
-
- @Override
- boolean isImmutable(ReadGraphImpl graph) {
- return graph.processor.isImmutable(id);
- }
-
}
Code Review / simantics / platform.git / blobdiff