--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.db.impl.query;\r
+\r
+import gnu.trove.procedure.TIntProcedure;\r
+\r
+import java.util.concurrent.Semaphore;\r
+\r
+import org.simantics.db.common.exception.DebugException;\r
+import org.simantics.db.impl.graph.ReadGraphImpl;\r
+import org.simantics.db.procedure.ListenerBase;\r
+import org.simantics.db.request.RequestFlags;\r
+\r
+final public class Predicates extends UnaryQuery<IntProcedure> {\r
+ \r
+// public ArrayList<IntProcedure> procs;\r
+\r
+ public Predicates(final int r) {\r
+ super(r);\r
+ }\r
+\r
+ public static Predicates newInstance(final int r) {\r
+ return new Predicates(r);\r
+ }\r
+ \r
+ final static Predicates entry(final QueryProcessor provider, final int r) {\r
+ \r
+ return (Predicates)provider.predicatesMap.get(r);\r
+\r
+ }\r
+ \r
+ final static void runner(ReadGraphImpl graph, final int r, final QueryProcessor provider, Predicates cached, final CacheEntry parent, final ListenerBase listener, final IntProcedure procedure) {\r
+\r
+ Predicates entry = cached != null ? cached : (Predicates)provider.predicatesMap.get(r); \r
+ if(entry == null) {\r
+ \r
+ entry = new Predicates(r);\r
+ entry.setPending();\r
+ entry.clearResult(provider.querySupport);\r
+ entry.putEntry(provider);\r
+ \r
+ provider.performForEach(graph, entry, parent, listener, procedure);\r
+ \r
+ } else {\r
+ \r
+ if(entry.isPending()) {\r
+ synchronized(entry) {\r
+ if(entry.isPending()) {\r
+ throw new IllegalStateException();\r
+ }\r
+ }\r
+ }\r
+ provider.performForEach(graph, entry, parent, listener, procedure);\r
+ }\r
+\r
+ }\r
+\r
+ final static IntSet runner2(ReadGraphImpl graph, final int r, final QueryProcessor provider, final CacheEntry parent) throws Throwable {\r
+\r
+ Predicates entry = (Predicates)provider.predicatesMap.get(r); \r
+ if(entry == null) {\r
+ \r
+ entry = new Predicates(r);\r
+ entry.setPending();\r
+ entry.clearResult(provider.querySupport);\r
+ entry.putEntry(provider);\r
+ \r
+ return (IntSet)provider.performForEach2(graph, entry, parent, null, null);\r
+ \r
+ } else {\r
+ \r
+ if(entry.isPending()) {\r
+ synchronized(entry) {\r
+ if(entry.isPending()) {\r
+ throw new IllegalStateException();\r
+ }\r
+ }\r
+ }\r
+ return (IntSet)provider.performForEach(graph, entry, parent, null, null);\r
+ \r
+ }\r
+\r
+ }\r
+ \r
+ final public static void queryEach(ReadGraphImpl graph, final int r, final QueryProcessor provider, final CacheEntry parent, final ListenerBase listener, final IntProcedure procedure) {\r
+ \r
+ assert(r != 0);\r
+ \r
+ final Predicates entry = (Predicates)provider.predicatesMap.get(r);\r
+ \r
+ if(parent == null && listener == null) {\r
+ if(entry != null && entry.isReady()) { \r
+ entry.performFromCache(graph, provider, procedure);\r
+ return;\r
+ }\r
+ }\r
+\r
+ runner(graph, r, provider, entry, parent, listener, procedure);\r
+ \r
+ }\r
+\r
+ final public static IntSet queryEach2(ReadGraphImpl graph, final int r, final QueryProcessor provider, final CacheEntry parent) throws Throwable {\r
+ \r
+ if(parent == null) {\r
+ final Predicates entry = (Predicates)provider.predicatesMap.get(r);\r
+ if(entry != null && entry.isReady()) {\r
+ return (IntSet)entry.get(graph, provider, null);\r
+ }\r
+ }\r
+\r
+ return runner2(graph, r, provider, parent);\r
+ \r
+ }\r
+ \r
+ @Override\r
+ public UnaryQuery<IntProcedure> getEntry(QueryProcessor provider) {\r
+ return provider.predicatesMap.get(id);\r
+ }\r
+ \r
+ @Override\r
+ public void putEntry(QueryProcessor provider) {\r
+ provider.predicatesMap.put(id, this);\r
+ }\r
+\r
+ @Override\r
+ final public void removeEntry(QueryProcessor provider) {\r
+ provider.predicatesMap.remove(id);\r
+ }\r
+ \r
+ final private void forAssertions(ReadGraphImpl graph, final QueryProcessor queryProvider, final IntProcedure procedure, final boolean store) {\r
+\r
+ PrincipalTypes.queryEach(graph, id, queryProvider, store ? Predicates.this : null, null, new SyncIntProcedure() {\r
+ \r
+ @Override\r
+ public void run(ReadGraphImpl graph) {\r
+ \r
+ finish(graph, queryProvider);\r
+ procedure.finished(graph);\r
+ \r
+ }\r
+ \r
+ IntProcedure proc = new IntProcedure() {\r
+\r
+ @Override\r
+ public void execute(ReadGraphImpl graph, int i) {\r
+ if(addOrSet(queryProvider, i))\r
+ procedure.execute(graph, i);\r
+ }\r
+\r
+ @Override\r
+ public void finished(ReadGraphImpl graph) {\r
+ dec(graph);\r
+ }\r
+ \r
+ @Override\r
+ public void exception(ReadGraphImpl graph, Throwable t) {\r
+ if(DebugException.DEBUG) new DebugException(t).printStackTrace();\r
+ procedure.exception(graph, t);\r
+ }\r
+\r
+ }; \r
+\r
+ @Override\r
+ public void execute(ReadGraphImpl graph, int type) {\r
+\r
+ inc();\r
+ \r
+ AssertedPredicates.queryEach(graph, type, queryProvider, store ? Predicates.this : null, null, proc);\r
+ \r
+ }\r
+ \r
+ @Override\r
+ public void finished(ReadGraphImpl graph) {\r
+ dec(graph); \r
+ }\r
+ \r
+ });\r
+ \r
+\r
+ }\r
+\r
+ @Override\r
+ public Object computeForEach(ReadGraphImpl graph, final QueryProcessor provider, final IntProcedure procedure, final boolean store) {\r
+\r
+ DirectPredicates.queryEach(graph, id, provider, store ? Predicates.this : null, null, new IntProcedure() {\r
+\r
+ @Override\r
+ public void execute(ReadGraphImpl graph, final int pred) {\r
+\r
+ if(addOrSet(provider, pred))\r
+ procedure.execute(graph, pred);\r
+\r
+ }\r
+\r
+ @Override\r
+ public void finished(ReadGraphImpl graph) {\r
+\r
+ forAssertions(graph, provider, procedure, store);\r
+\r
+ }\r
+\r
+ @Override\r
+ public void exception(ReadGraphImpl graph, Throwable t) {\r
+ procedure.exception(graph, t);\r
+ }\r
+\r
+ });\r
+ \r
+ return getResult();\r
+ \r
+ }\r
+ \r
+ @Override\r
+ public String toString() {\r
+ return "Predicates2[" + id + "]";\r
+ }\r
+\r
+ final public void finish(final ReadGraphImpl graph, QueryProcessor provider) {\r
+ \r
+// ArrayList<IntProcedure> p = null;\r
+\r
+ synchronized(this) {\r
+\r
+ setReady();\r
+// p = procs;\r
+// procs = null; \r
+ \r
+ }\r
+ \r
+// if(p != null) {\r
+// \r
+// final ArrayList<IntProcedure> finalP = p;\r
+//\r
+// IntSet v = (IntSet)getResult();\r
+// v.forEach(new TIntProcedure() {\r
+//\r
+// @Override\r
+// public boolean execute(int arg0) {\r
+// for(IntProcedure proc : finalP) proc.execute(graph, arg0);\r
+// return true;\r
+// }\r
+//\r
+// });\r
+//\r
+// for(IntProcedure proc : p) proc.finished(graph);\r
+// \r
+// }\r
+\r
+ }\r
+\r
+ synchronized private boolean addOrSet(QueryProcessor processor, int add) {\r
+\r
+ if(!isPending()) {\r
+ setResult(new IntSet(null));\r
+ }\r
+ \r
+ IntSet value = (IntSet)getResult();\r
+ return value.add(add);\r
+ \r
+ }\r
+\r
+ @Override\r
+ public void clearResult(QuerySupport support) {\r
+ setResult(new IntSet(support));\r
+ }\r
+ \r
+ @Override\r
+ public Object performFromCache(final ReadGraphImpl graph, QueryProcessor provider, final IntProcedure procedure) {\r
+ \r
+ assert(isReady());\r
+\r
+ if(handleException(graph, procedure)) return EXCEPTED;\r
+ \r
+ IntSet v = getResult();\r
+ if(procedure != null) {\r
+ v.forEach(new TIntProcedure() {\r
+\r
+ @Override\r
+ public boolean execute(int arg0) {\r
+ procedure.execute(graph, arg0); \r
+ return true;\r
+ }\r
+ });\r
+ procedure.finished(graph);\r
+ }\r
+ \r
+ return v;\r
+ \r
+ }\r
+ \r
+ @Override\r
+ public void recompute(ReadGraphImpl graph, QueryProcessor provider) {\r
+ \r
+ final Semaphore s = new Semaphore(0);\r
+ \r
+ computeForEach(graph, provider, new IntProcedure() {\r
+\r
+ @Override\r
+ public void finished(ReadGraphImpl graph) {\r
+ s.release();\r
+ }\r
+ \r
+ @Override\r
+ public void exception(ReadGraphImpl graph, Throwable t) {\r
+ throw new Error("Error in recompute.", t);\r
+ }\r
+\r
+ @Override\r
+ public void execute(ReadGraphImpl graph, int i) {\r
+ }\r
+\r
+ }, true);\r
+ \r
+ while(!s.tryAcquire()) {\r
+ provider.resume(graph);\r
+ }\r
+ \r
+ }\r
+ \r
+ @Override\r
+ public int type() {\r
+ return RequestFlags.IMMEDIATE_UPDATE;\r
+ }\r
+\r
+\r
+ @Override\r
+ boolean isImmutable(ReadGraphImpl graph) {\r
+ return graph.processor.isImmutable(id);\r
+ }\r
+ \r
+}\r
Code Review / simantics / platform.git / blobdiff