-/*******************************************************************************\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 java.util.ArrayList;\r
-\r
-import org.simantics.db.AsyncReadGraph;\r
-import org.simantics.db.common.exception.DebugException;\r
-import org.simantics.db.impl.graph.ReadGraphImpl;\r
-import org.simantics.db.procedure.AsyncMultiProcedure;\r
-import org.simantics.db.request.AsyncMultiRead;\r
-import org.simantics.db.request.RequestFlags;\r
-\r
-final public class AsyncMultiReadEntry<T> extends CacheEntryBase {\r
-\r
-// public ArrayList<AsyncMultiProcedure<T>> procs = null;\r
-\r
- protected AsyncMultiRead<T> request;\r
- \r
- public AsyncMultiReadEntry(AsyncMultiRead<T> request) {\r
- this.request = request;\r
- }\r
- \r
- @Override\r
- int makeHash() {\r
- return request.hashCode();\r
- }\r
- \r
- @Override\r
- public Object getOriginalRequest() {\r
- return request;\r
- }\r
- \r
- @Override\r
- public void discard() {\r
- super.discard();\r
- request = null;\r
- setResult(null);\r
- }\r
- \r
- final synchronized public void finish(AsyncReadGraph graph) {\r
- \r
-// new Exception("finish " + this).printStackTrace();\r
- \r
- if(!isPending()) {\r
- System.err.println("aff");\r
- }\r
- \r
- assert(isPending());\r
-\r
-// ArrayList<AsyncMultiProcedure<T>> p = null;\r
-\r
- synchronized(this) {\r
-\r
- setReady();\r
-// p = procs;\r
-// procs = null; \r
- \r
- }\r
- \r
-// if(p != null) {\r
-// ArrayList<T> v = (ArrayList<T>)getResult();\r
-// if(v != null) {\r
-// for(AsyncMultiProcedure<T> proc : p) {\r
-// for(T t : v) proc.execute(graph, t);\r
-// }\r
-// }\r
-// \r
-// for(AsyncMultiProcedure<T> proc : p) proc.finished(graph);\r
-// }\r
- \r
- }\r
-\r
- final synchronized public void except(AsyncReadGraph graph, Throwable t) {\r
-\r
- assert(isPending());\r
-\r
-// ArrayList<AsyncMultiProcedure<T>> p = null;\r
-\r
- synchronized(this) {\r
-\r
- except(t);\r
-// p = procs;\r
-// procs = null; \r
- \r
- }\r
- \r
-// if(p != null) {\r
-// for(AsyncMultiProcedure<T> proc : p) proc.exception(graph, t);\r
-// }\r
- \r
- }\r
-\r
- final synchronized public void addOrSet(Object item) {\r
-\r
- assert(isPending());\r
- \r
- ArrayList<T> value = (ArrayList<T>)getResult(); \r
- value.add((T)item);\r
- \r
- }\r
- \r
- @Override\r
- public void clearResult(QuerySupport support) {\r
- setResult(new ArrayList<T>());\r
- }\r
- \r
- @Override\r
- final public Query getQuery() {\r
- \r
- return new Query() {\r
-\r
- @Override\r
- public void recompute(ReadGraphImpl graph, Object provider, CacheEntry entry) {\r
- \r
- QueryProcessor qp = (QueryProcessor)provider;\r
-\r
- final ReadGraphImpl parentGraph = ReadGraphImpl.forRecompute(entry, qp); \r
-\r
- try {\r
-\r
- request.perform(parentGraph , new AsyncMultiProcedure<T>() {\r
-\r
- @Override\r
- public void execute(AsyncReadGraph graph, T result) {\r
- addOrSet(result);\r
- }\r
- \r
- public void finished(AsyncReadGraph graph) {\r
- finish(graph);\r
- };\r
- \r
- @Override\r
- public void exception(AsyncReadGraph graph, Throwable t) {\r
- except(t);\r
- }\r
-\r
- });\r
-\r
- } catch (Throwable t) {\r
- except(t);\r
- if(DebugException.DEBUG) new DebugException(t).printStackTrace();\r
- }\r
- \r
- }\r
-\r
- @Override\r
- public void removeEntry(QueryProcessor processor) {\r
- processor.asyncMultiReadMap.remove(request);\r
- }\r
-\r
- @Override\r
- public int type() {\r
- return RequestFlags.INVALIDATE;\r
- }\r
- \r
- @Override\r
- public String toString() {\r
- if(request == null) return "DISCARDED";\r
- else return request.toString() + statusOrException;\r
- }\r
- \r
- };\r
- \r
- }\r
-\r
- @Override\r
- public void performFromCache(ReadGraphImpl graph, Object provider, Object procedure) {\r
- \r
- final AsyncMultiProcedure<T> proc = (AsyncMultiProcedure<T>)procedure;\r
-\r
- if(isExcepted()) {\r
-\r
- try {\r
- proc.exception(graph, (Throwable)getResult());\r
- } catch (Throwable t) {\r
- t.printStackTrace();\r
- }\r
- \r
- \r
- } else {\r
- \r
- final ArrayList<T> values = (ArrayList<T>)getResult();\r
- for(T value : values) {\r
- try {\r
- proc.execute(graph, value);\r
- } catch (Throwable t) {\r
- t.printStackTrace();\r
- }\r
- }\r
-\r
- try {\r
- proc.finished(graph);\r
- } catch (Throwable t) {\r
- t.printStackTrace();\r
- }\r
-\r
- }\r
- \r
- \r
- \r
- }\r
-\r
-// @Override\r
-// public void performFromCache(int callerThread, Object provider,\r
-// Object procedure) {\r
-//\r
-// QueryProvider2 queryProvider = (QueryProvider2)provider;\r
-// ReadGraphImpl graph = ReadGraphImpl.forFromCache(callerThread, null, new ReadGraphSupportImpl(null, queryProvider, null));\r
-// performFromCache(graph, provider, procedure);\r
-// \r
-// }\r
- \r
- @Override\r
- public String toString() {\r
- if(request == null) return "DISCARDED";\r
- else return request.toString() + statusOrException;\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * 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
+ * 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 org.simantics.db.AsyncReadGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.impl.BlockingAsyncMultiProcedure;
+import org.simantics.db.impl.graph.ReadGraphImpl;
+import org.simantics.db.procedure.AsyncMultiProcedure;
+import org.simantics.db.request.AsyncMultiRead;
+import org.simantics.db.request.RequestFlags;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+final public class AsyncMultiReadEntry<T> extends CacheEntryBase<AsyncMultiProcedure<T>> {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(AsyncMultiReadEntry.class);
+
+ protected AsyncMultiRead<T> id;
+
+ AsyncMultiReadEntry(AsyncMultiRead<T> request) {
+ this.id = request;
+ }
+
+ @Override
+ int makeHash() {
+ return id.hashCode();
+ }
+
+ @Override
+ public Object getOriginalRequest() {
+ return id;
+ }
+
+ @Override
+ public void discard() {
+ super.discard();
+ id = null;
+ setResult(null);
+ }
+
+ final synchronized public void finish(AsyncReadGraph graph) {
+
+ assert(isPending());
+
+ synchronized(this) {
+ setReady();
+ }
+
+ }
+
+ final synchronized public void except(AsyncReadGraph graph, Throwable t) {
+
+ assert(isPending());
+
+ synchronized(this) {
+ except(t);
+ }
+
+ }
+
+ @SuppressWarnings("unchecked")
+ final synchronized public void addOrSet(Object item) {
+
+ assert(isPending());
+
+ ArrayList<T> value = (ArrayList<T>)getResult();
+ value.add((T)item);
+
+ }
+
+ @Override
+ public void clearResult(QuerySupport support) {
+ setResult(new ArrayList<T>());
+ }
+
+ @Override
+ final public Query getQuery() {
+
+ return new Query() {
+
+ @Override
+ public void recompute(ReadGraphImpl graph) {
+
+ try {
+
+ BlockingAsyncMultiProcedure<T> proc = new BlockingAsyncMultiProcedure<>(graph.asyncBarrier, graph, new AsyncMultiProcedure<T>() {
+
+ @Override
+ public void execute(AsyncReadGraph graph, T result) {
+ addOrSet(result);
+ }
+
+ public void finished(AsyncReadGraph graph) {
+ finish(graph);
+ };
+
+ @Override
+ public void exception(AsyncReadGraph graph, Throwable t) {
+ except(t);
+ }
+
+ }, id);
+
+ id.perform(graph , proc);
+
+ proc.get();
+
+ } catch (Throwable t) {
+
+ except(t);
+
+ }
+
+ }
+
+ @Override
+ public void removeEntry(QueryProcessor processor) {
+ processor.cache.remove(AsyncMultiReadEntry.this);
+ }
+
+ @Override
+ public int type() {
+ return RequestFlags.INVALIDATE;
+ }
+
+ @Override
+ public String toString() {
+ if(id == null) return "DISCARDED";
+ else return id.toString() + statusOrException;
+ }
+
+ };
+
+ }
+
+ @SuppressWarnings("unchecked")
+ @Override
+ public Object performFromCache(ReadGraphImpl graph, AsyncMultiProcedure<T> proc) {
+
+ if(isExcepted()) {
+
+ try {
+ proc.exception(graph, (Throwable)getResult());
+ } catch (Throwable t) {
+ LOGGER.error("performFromCache proc.exception failed", t);
+ }
+
+ } else {
+
+ final ArrayList<T> values = (ArrayList<T>)getResult();
+ for(T value : values) {
+ try {
+ proc.execute(graph, value);
+ } catch (Throwable t) {
+ LOGGER.error("performFromCache proc.execute failed", t);
+ }
+ }
+
+ try {
+ proc.finished(graph);
+ } catch (Throwable t) {
+ LOGGER.error("performFromCache proc.finished failed", t);
+ }
+
+ }
+
+ return getResult();
+
+ }
+
+ @Override
+ public String toString() {
+ if(id == null) return "DISCARDED";
+ else return id.toString() + statusOrException;
+ }
+
+ public Object compute(ReadGraphImpl graph, AsyncMultiProcedure<T> procedure) throws DatabaseException {
+ return graph.processor.cache.performQuery(graph, id, this, procedure);
+ }
+
+}
Code Review / simantics / platform.git / blobdiff