X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.charts%2Fsrc%2Forg%2Fsimantics%2Fcharts%2Feditor%2FChartData.java;h=e85c080370e0b2d774aa0b9c174b8424fae84c13;hp=aaf9c700297430ea0bba93b11f5b0c3310fe902b;hb=13edeabfa275ed09f6fa1b76923a96a1172fdc22;hpb=969bd23cab98a79ca9101af33334000879fb60c5
diff --git a/bundles/org.simantics.charts/src/org/simantics/charts/editor/ChartData.java b/bundles/org.simantics.charts/src/org/simantics/charts/editor/ChartData.java
index aaf9c7002..e85c08037 100644
--- a/bundles/org.simantics.charts/src/org/simantics/charts/editor/ChartData.java
+++ b/bundles/org.simantics.charts/src/org/simantics/charts/editor/ChartData.java
@@ -1,102 +1,147 @@
-/*******************************************************************************
- * Copyright (c) 2007, 2011 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.charts.editor;
-
-import org.simantics.databoard.annotations.Optional;
-import org.simantics.db.Resource;
-import org.simantics.history.Collector;
-import org.simantics.history.HistoryManager;
-import org.simantics.simulation.data.Datasource;
-import org.simantics.simulation.experiment.IExperiment;
-
-/**
- * @author Tuukka Lehtonen
- */
-public final class ChartData {
-
- /**
- * The model for which this ChartData is valid, i.e. the model that contains
- * {@link #run} if {@link #run} is nonnon-null
- */
- @Optional
- public Resource model;
-
- /**
- * If just reading data from file system, not the database, this may be
- * null.
- */
- @Optional
- public Resource run;
-
- /**
- * Used for giving the chart access to the active experiment state.
- */
- @Optional
- public IExperiment experiment;
-
- /**
- * May be null if the chart data is not connected to a running experiment.
- */
- @Optional
- public Datasource datasource;
-
- @Optional
- public HistoryManager history;
-
- /**
- * Optional collector, Chart uses this to flush data right before drawing it
- */
- @Optional
- public Collector collector;
-
- public ChartData(Resource model, Resource run, IExperiment experiment, Datasource datasource, HistoryManager history, Collector collector) {
- this.model = model;
- this.run = run;
- this.experiment = experiment;
- this.datasource = datasource;
- this.history = history;
- this.collector = collector;
- }
-
- public void readFrom(ChartData other) {
- if (other==null) {
- this.model = null;
- this.run = null;
- this.experiment = null;
- this.datasource = null;
- this.history = null;
- this.collector = null;
- } else {
- this.model = other.model;
- this.run = other.run;
- this.experiment = other.experiment;
- this.datasource = other.datasource;
- this.history = other.history;
- this.collector = other.collector;
- }
- }
-
- /**
- * Dispose by closing history
- */
- public void dispose() {
- model = null;
- run = null;
- experiment = null;
- datasource = null;
- if (history != null) {
- history.close();
- history = null;
- }
- }
-
-}
+/*******************************************************************************
+ * Copyright (c) 2007, 2011 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.charts.editor;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.simantics.databoard.annotations.Optional;
+import org.simantics.db.Resource;
+import org.simantics.history.Collector;
+import org.simantics.history.HistoryManager;
+import org.simantics.simulation.data.Datasource;
+import org.simantics.simulation.experiment.IExperiment;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public final class ChartData {
+
+ /**
+ * The model for which this ChartData is valid, i.e. the model that contains
+ * {@link #run} if {@link #run} is nonnon-null
+ */
+ @Optional
+ public Resource model;
+
+ /**
+ * If just reading data from file system, not the database, this may be
+ * null.
+ */
+ @Optional
+ public Resource run;
+
+ /**
+ * Used for giving the chart access to the active experiment state.
+ */
+ @Optional
+ public IExperiment experiment;
+
+ /**
+ * May be null if the chart data is not connected to a running experiment.
+ */
+ @Optional
+ public Datasource datasource;
+
+ @Optional
+ public HistoryManager history;
+
+ /**
+ * Optional collector, Chart uses this to flush data right before drawing it
+ */
+ @Optional
+ public Collector collector;
+
+ /**
+ * This (shared instance) is used to track the amount of users of this ChartData
+ * instance. The same instance may end up in many ChartData instances through
+ * {@link #readFrom(ChartData)}.
+ */
+ public AtomicInteger refCount = new AtomicInteger();
+
+ public ChartData(Resource model, Resource run, IExperiment experiment, Datasource datasource, HistoryManager history, Collector collector) {
+ this.model = model;
+ this.run = run;
+ this.experiment = experiment;
+ this.datasource = datasource;
+ this.history = history;
+ this.collector = collector;
+ }
+
+ public void readFrom(ChartData other) {
+ if (other==null) {
+ this.model = null;
+ this.run = null;
+ this.experiment = null;
+ this.datasource = null;
+ this.history = null;
+ this.collector = null;
+ this.refCount = null;
+ } else {
+ this.model = other.model;
+ this.run = other.run;
+ this.experiment = other.experiment;
+ this.datasource = other.datasource;
+ this.history = other.history;
+ this.collector = other.collector;
+ this.refCount = other.refCount;
+ }
+ }
+
+ /**
+ * Dispose by closing history
+ */
+ public void dispose() {
+ model = null;
+ run = null;
+ experiment = null;
+ datasource = null;
+ if (history != null) {
+ history.close();
+ history = null;
+ }
+ }
+
+ public int reference() {
+ AtomicInteger i = refCount;
+ if (i == null)
+ return 0;
+ int result = i.incrementAndGet();
+ //System.out.println(this + ": reference: " + (result-1) + " -> " + result + " (" + System.identityHashCode(refCount) + ")");
+ return result;
+ }
+
+ public int dereference() {
+ AtomicInteger i = refCount;
+ if (i == null)
+ return 0;
+ int result = i.decrementAndGet();
+ //System.out.println(this + ": dereference: " + (result+1) + " -> " + result + " (" + System.identityHashCode(refCount) + ")");
+ if (result <= 0) {
+ synchronized (i) {
+ i.notifyAll();
+ }
+ }
+ return result;
+ }
+
+ public void waitUntilNotReferenced() throws InterruptedException {
+ AtomicInteger i = refCount;
+ if (i == null)
+ return;
+ synchronized (i) {
+ while (i.get() > 0) {
+ i.wait();
+ }
+ }
+ }
+
+}