--- /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.impl.graph.ReadGraphImpl;\r
+import org.simantics.db.impl.procedure.InternalProcedure;\r
+import org.simantics.db.procedure.ListenerBase;\r
+\r
+final public class SuperTypes extends UnaryQuery<InternalProcedure<IntSet>> {\r
+ \r
+// public ArrayList<InternalProcedure<IntSet>> procs = null;\r
+ \r
+ private SuperTypes(final int resource) {\r
+ super(resource);\r
+ }\r
+ \r
+ final static SuperTypes runner(ReadGraphImpl graph, final int r, final CacheEntry parent, final QueryProcessor provider, final ListenerBase listener, final InternalProcedure<IntSet> procedure) {\r
+\r
+ SuperTypes entry = (SuperTypes)provider.superTypesMap.get(r);\r
+ if(entry == null) {\r
+ \r
+ entry = new SuperTypes(r);\r
+ entry.setPending();\r
+ entry.clearResult(provider.querySupport);\r
+ entry.putEntry(provider);\r
+ \r
+ provider.performForEach(graph, entry, parent, listener, procedure);\r
+ \r
+ return entry;\r
+ \r
+ } else {\r
+ \r
+ if(!entry.isReady()) {\r
+ synchronized(entry) {\r
+ if(!entry.isReady()) {\r
+ throw new IllegalStateException();\r
+// if(entry.procs == null) entry.procs = new ArrayList<InternalProcedure<IntSet>>();\r
+// entry.procs.add(procedure);\r
+// provider.registerDependencies(graph, entry, parent, listener, procedure, false);\r
+// return entry;\r
+ }\r
+ }\r
+ }\r
+ provider.performForEach(graph, entry, parent, listener, procedure);\r
+ }\r
+ \r
+ return entry;\r
+\r
+ }\r
+ \r
+ final public static SuperTypes queryEach(ReadGraphImpl graph, final int r, final QueryProcessor provider, final CacheEntry parent, final ListenerBase listener, final InternalProcedure<IntSet> procedure) {\r
+ \r
+ if(parent == null && listener == null) {\r
+ SuperTypes entry = (SuperTypes)provider.superTypesMap.get(r);\r
+ if(entry != null && entry.isReady()) { \r
+ entry.performFromCache(graph, provider, procedure);\r
+ return entry;\r
+ }\r
+ }\r
+ \r
+ return runner(graph, r, parent, provider, listener, procedure);\r
+ \r
+ }\r
+ \r
+ @Override\r
+ public UnaryQuery<InternalProcedure<IntSet>> getEntry(QueryProcessor provider) {\r
+ return provider.superTypesMap.get(id);\r
+ }\r
+ \r
+ @Override\r
+ public void putEntry(QueryProcessor provider) {\r
+ provider.superTypesMap.put(id, this);\r
+ }\r
+\r
+ @Override\r
+ final public void removeEntry(QueryProcessor provider) {\r
+ provider.superTypesMap.remove(id);\r
+ }\r
+\r
+ @Override\r
+ public Object computeForEach(ReadGraphImpl graph, final QueryProcessor provider, final InternalProcedure<IntSet> procedure, boolean store) {\r
+\r
+ final int inherits = provider.getInherits();\r
+ \r
+ final CacheEntry parent = graph.parent;\r
+ \r
+ assert(graph.parent != this);\r
+\r
+ final IntSet result = new IntSet(provider.querySupport);\r
+ \r
+ final TIntProcedure addToResult = new TIntProcedure() {\r
+ @Override\r
+ public boolean execute(int r) {\r
+ synchronized(result) {\r
+ result.add(r);\r
+ }\r
+ return true;\r
+ }\r
+ };\r
+\r
+ DirectObjects.queryEach(graph, id, inherits, provider, this, null, new SyncIntProcedure() {\r
+ \r
+ @Override\r
+ public void run(ReadGraphImpl graph) {\r
+\r
+ addOrSet(graph, result, provider);\r
+ procedure.execute(graph, result);\r
+ \r
+ }\r
+ \r
+ @Override\r
+ public void execute(ReadGraphImpl graph, final int i) {\r
+ \r
+ assert(graph.parent == parent);\r
+ \r
+ synchronized(result) {\r
+ result.add(i);\r
+ }\r
+ \r
+ inc();\r
+\r
+ SuperTypes.queryEach(graph, i, provider, SuperTypes.this, null, new InternalProcedure<IntSet>() {\r
+\r
+ @Override\r
+ public void execute(ReadGraphImpl graph, IntSet types) {\r
+\r
+ types.forEach(addToResult);\r
+ dec(graph);\r
+ \r
+ }\r
+ \r
+ @Override\r
+ public void exception(ReadGraphImpl graph, Throwable t) {\r
+ procedure.exception(graph, t);\r
+ }\r
+\r
+ });\r
+ \r
+ }\r
+\r
+ @Override\r
+ public void finished(ReadGraphImpl graph) {\r
+ dec(graph);\r
+ }\r
+ \r
+ });\r
+ \r
+ return result;\r
+ \r
+ }\r
+ \r
+ @Override\r
+ public String toString() {\r
+ return "SuperTypes2[" + id + "]";\r
+ }\r
+\r
+ private void addOrSet(ReadGraphImpl graph, final IntSet value, QueryProcessor provider) {\r
+ \r
+ assert(!isReady());\r
+\r
+// ArrayList<InternalProcedure<IntSet>> p = null;\r
+\r
+ synchronized(this) {\r
+ \r
+ value.trim();\r
+ setResult(value);\r
+ setReady();\r
+// p = procs;\r
+// procs = null; \r
+ \r
+ }\r
+\r
+// if(p != null) {\r
+// IntSet v = (IntSet)getResult();\r
+// if(v != null) {\r
+// for(InternalProcedure<IntSet> proc : p) proc.execute(graph, v);\r
+// }\r
+// }\r
+ \r
+ }\r
+\r
+ @Override\r
+ public Object performFromCache(ReadGraphImpl graph, QueryProcessor provider, InternalProcedure<IntSet> procedure) {\r
+ \r
+ assert(isReady());\r
+\r
+ if(handleException(graph, procedure)) return null;\r
+ \r
+ IntSet result = getResult();\r
+ \r
+ procedure.execute(graph, result);\r
+ \r
+ return result;\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 InternalProcedure<IntSet>() {\r
+\r
+ @Override\r
+ public void execute(ReadGraphImpl graph, IntSet result) {\r
+ s.release();\r
+ }\r
+\r
+ @Override\r
+ public void exception(ReadGraphImpl graph, Throwable t) {\r
+ s.release();\r
+ new Error("Error in recompute.", t).printStackTrace();\r
+ }\r
+\r
+ }, true);\r
+\r
+ while(!s.tryAcquire()) {\r
+ provider.resume(graph);\r
+ }\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