X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.impl%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fimpl%2Fquery%2FAssertedPredicates.java;fp=bundles%2Forg.simantics.db.impl%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fimpl%2Fquery%2FAssertedPredicates.java;h=067c7444f8a5237bfe6dc93957f2f8f0440d8120;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git diff --git a/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/AssertedPredicates.java b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/AssertedPredicates.java new file mode 100644 index 000000000..067c7444f --- /dev/null +++ b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/AssertedPredicates.java @@ -0,0 +1,350 @@ +/******************************************************************************* + * Copyright (c) 2007, 2010 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 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * VTT Technical Research Centre of Finland - initial API and implementation + *******************************************************************************/ +package org.simantics.db.impl.query; + +import java.util.ArrayList; +import java.util.concurrent.Semaphore; + +import org.simantics.db.RelationInfo; +import org.simantics.db.impl.graph.ReadGraphImpl; +import org.simantics.db.impl.procedure.IntProcedureAdapter;import org.simantics.db.impl.procedure.InternalProcedure; +import org.simantics.db.procedure.ListenerBase; + + +final public class AssertedPredicates extends CollectionUnaryQuery { + +// public ArrayList procs = null; + + public AssertedPredicates(final int r) { + super(r); + } + + public static AssertedPredicates newInstance(final int r) { + return new AssertedPredicates(r); + } + + final static void runner(ReadGraphImpl graph, final int r, final QueryProcessor provider, final CacheEntry parent, final ListenerBase listener, final IntProcedure procedure) { + + AssertedPredicates entry = (AssertedPredicates)provider.assertedPredicatesMap.get(r); + if(entry == null) { + + entry = new AssertedPredicates(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()) { + throw new IllegalStateException(); +// if(entry.procs == null) entry.procs = new ArrayList(); +// entry.procs.add(procedure); +// 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) { + AssertedPredicates entry = (AssertedPredicates)provider.assertedPredicatesMap.get(r); + if(entry != null && entry.isReady()) { + entry.performFromCache(graph, provider, procedure); + return; + } + } + + runner(graph, r, provider, parent, listener, procedure); + + } + + @Override + public UnaryQuery getEntry(QueryProcessor provider) { + return provider.assertedPredicatesMap.get(id); + } + + @Override + public void putEntry(QueryProcessor provider) { + provider.assertedPredicatesMap.put(id, this); + } + + @Override + final public void removeEntry(QueryProcessor provider) { + provider.assertedPredicatesMap.remove(id); + } + + void computeInheritedAssertions(ReadGraphImpl graph, int type, final QueryProcessor queryProvider, final IntProcedure proc, final boolean store) { + + DirectObjects.queryEach(graph, type, queryProvider.getInherits(), queryProvider, this, null, new SyncIntProcedure() { + + @Override + public void run(ReadGraphImpl graph) { + +// finish(graph, queryProvider); +// proc.finished(graph); + + } + + @Override + public void execute(ReadGraphImpl graph,int inh) { + + inc(); + + AssertedPredicates.queryEach(graph, inh, queryProvider, AssertedPredicates.this, null, new IntProcedure() { + + @Override + public void execute(ReadGraphImpl graph, int ass) { + + addOrSet(ass); +// proc.execute(graph, ass); + + } + + @Override + public void finished(ReadGraphImpl graph) { + dec(graph); + } + + @Override + public void exception(ReadGraphImpl graph, Throwable t) { +// proc.exception(graph, t); + } + + }); + + } + + @Override + public void finished(ReadGraphImpl graph) { + + dec(graph); + + } + + }); + + } + + @Override + public Object computeForEach(ReadGraphImpl graph, final QueryProcessor queryProvider, final IntProcedure proc, final boolean store) { + + computeInheritedAssertions(graph, id, queryProvider, proc, store); + + DirectObjects.queryEach(graph, id, queryProvider.getAsserts(), queryProvider, this, null, new IntProcedure() { + + @Override + public void execute(ReadGraphImpl graph, final int ass) { + + DirectObjects.queryEach(graph, ass, queryProvider.getHasPredicate(), queryProvider, AssertedPredicates.this, null, new IntProcedure() { + + @Override + public void execute(ReadGraphImpl graph, final int pred) { + + addOrSetHiding(graph, pred, AssertedPredicates.this); +// proc.execute(graph, pred); + return; + + } + + @Override + public void finished(ReadGraphImpl graph) { + } + + @Override + public void exception(ReadGraphImpl graph, Throwable t) { +// proc.exception(graph, t); + } + + }); + + } + + @Override + public void finished(ReadGraphImpl graph) { + } + + @Override + public void exception(ReadGraphImpl graph, Throwable t) { +// proc.exception(graph, t); + } + + }); + + finish(graph, queryProvider); + + performFromCache(graph, queryProvider, proc); + + return getResult(); + + } + + @Override + public String toString() { + return "AssertedPredicates[" + id + "]"; + } + + final public void finish(ReadGraphImpl graph, QueryProcessor provider) { + + assert(!isReady()); + +// ArrayList p = null; + + synchronized(this) { + + 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); +// } + + } + + synchronized private void addOrSet(int add) { + + assert(isPending()); + + IntArray value = (IntArray)getResult(); + value.add(add); + + } + + final static InternalProcedure ip = new InternalProcedure() { + + @Override + public void execute(ReadGraphImpl graph, RelationInfo result) { + } + + @Override + public void exception(ReadGraphImpl graph, Throwable throwable) { + } + + }; + + final static InternalProcedure ip2 = new InternalProcedure() { + + @Override + public void execute(ReadGraphImpl graph, IntSet result) { + } + + @Override + public void exception(ReadGraphImpl graph, Throwable throwable) { + } + + }; + + synchronized private void addOrSetHiding(ReadGraphImpl graph, int add, CacheEntry parent) { + + assert(isPending()); + + IntArray value = (IntArray)getResult(); + RelationInfo ri = RelationInfoQuery.queryEach(graph, add, graph.processor, parent, null, ip); + if(ri.isFunctional) { + // Replace existing functional predicate if found + try { + IntSet supers = SuperRelations.queryEach2(graph, add, graph.processor, parent, null, ip2); + if(value.data == null) { + if(value.sizeOrData != IntArray.NO_DATA) { + if(supers.contains(value.sizeOrData)) { + value.sizeOrData = add; + return; + } + } + } else { + for(int i = 0;i < value.sizeOrData ; i++) { + if(supers.contains(value.data[i])) { + value.data[i] = add; + return; + } + } + } + } catch (Throwable e) { + except(e); + return; + } + } + + // No replacement - append + value.add(add); + + } + + @Override + public Object performFromCache(ReadGraphImpl graph, QueryProcessor provider, final IntProcedure procedure) { + + assert(isReady()); + + if(handleException(graph, procedure)) return EXCEPTED; + + 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) { + s.release(); + new Error("Error in recompute.", t).printStackTrace(); + } + + }, true); + + while(!s.tryAcquire()) { + provider.resume(graph); + } + + } + + +}