*******************************************************************************/
package org.simantics.issues.common;
+import java.util.Collection;
import java.util.Collections;
import java.util.Set;
+import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import org.simantics.db.AsyncReadGraph;
import org.simantics.db.Resource;
import org.simantics.db.common.request.TernaryAsyncRead;
-import org.simantics.db.procedure.AsyncMultiProcedure;
+import org.simantics.db.exception.DatabaseException;
import org.simantics.db.procedure.AsyncProcedure;
import org.simantics.issues.Severity;
/**
* @author Tuukka Lehtonen
*/
-public class ChildMaxIssueSeverity extends TernaryAsyncRead<Resource, Resource, Set<Resource>, Severity>{
+public class ChildMaxIssueSeverity extends TernaryAsyncRead<Resource, Resource, Set<Resource>, Severity> {
+ static class AsyncReadResult<T> {
+ private AtomicReference<T> resultRef;
+ private Throwable throwable;
+ private AtomicInteger counter = new AtomicInteger(1);
+ private AsyncProcedure<T> procedure;
+ AsyncReadResult(AsyncProcedure<T> procedure, AtomicReference<T> resultRef) {
+ this.procedure = procedure;
+ this.resultRef = resultRef;
+ }
+ void except(AsyncReadGraph graph, Throwable throwable) {
+ this.throwable = throwable;
+ dec(graph);
+ }
+ void set(AsyncReadGraph graph, T result) {
+ resultRef.set(result);
+ dec(graph);
+ }
+ void inc() {
+ counter.incrementAndGet();
+ }
+ void dec(AsyncReadGraph graph) {
+ if(counter.decrementAndGet() == 0) {
+ if(throwable != null)
+ procedure.exception(graph, throwable);
+ else
+ procedure.execute(graph, resultRef.get());
+ }
+ }
+
+ }
+
public ChildMaxIssueSeverity(Resource resource, Resource childRelation, Set<Resource> typesToRecurse) {
super(resource, childRelation, typesToRecurse);
}
-// @Override
-// public Severity perform(ReadGraph graph) throws DatabaseException {
-// Severity maxSeverity = null;
-// //System.out.println("severityForChildren: " + NameUtils.getSafeName(graph, resource));
-// for (Resource child : graph.getObjects(resource, resource2)) {
-// Severity s = graph.syncRequest(new MaxIssueSeverityRecursive(child));
-// maxSeverity = Severity.moreSevere(maxSeverity, s);
-// }
-// //System.out.println("severityForChildren: " + NameUtils.getSafeName(graph, resource) + " : " + maxSeverity);
-// return maxSeverity;
-// }
-
@Override
public void perform(AsyncReadGraph graph, final AsyncProcedure<Severity> procedure) {
- //System.out.println(getClass().getSimpleName() + ": " + parameter);
- graph.forTypes(parameter, new AsyncProcedure<Set<Resource>>() {
- @Override
- public void execute(AsyncReadGraph graph, Set<Resource> result) {
- if (!Collections.disjoint(parameter3, result)) {
- checkChildren(graph, procedure);
- } else {
- procedure.execute(graph, null);
- }
- }
- @Override
- public void exception(AsyncReadGraph graph, Throwable throwable) {
- procedure.exception(graph, throwable);
+ try {
+ Set<Resource> types = graph.getTypes(parameter);
+ if (!Collections.disjoint(parameter3, types)) {
+ checkChildren(graph, procedure);
+ } else {
+ procedure.execute(graph, null);
}
- });
+ } catch (DatabaseException e) {
+ procedure.exception(graph, e);
+ }
+
}
protected void checkChildren(AsyncReadGraph graph, final AsyncProcedure<Severity> procedure) {
- graph.forEachObject(parameter, parameter2, new AsyncMultiProcedure<Resource>() {
- AtomicReference<Severity> maxSeverity = new AtomicReference<Severity>();
- @Override
- public void execute(AsyncReadGraph graph, Resource child) {
+
+ AsyncReadResult<Severity> maxSeverity = new AsyncReadResult<Severity>(procedure, new AtomicReference<Severity>());
+
+ try {
+ Collection<Resource> children = graph.getObjects(parameter, parameter2);
+ for(Resource child : children) {
+ maxSeverity.inc();
graph.asyncRequest(new MaxIssueSeverityRecursive(child, parameter2, parameter3), new AsyncProcedure<Severity>() {
@Override
public void execute(AsyncReadGraph graph, Severity severity) {
if (severity != null) {
synchronized (maxSeverity) {
- maxSeverity.set(Severity.moreSevere(maxSeverity.get(), severity));
+ maxSeverity.set(graph, Severity.moreSevere(maxSeverity.resultRef.get(), severity));
}
+ } else {
+ maxSeverity.dec(graph);
}
}
@Override
public void exception(AsyncReadGraph graph, Throwable throwable) {
- procedure.exception(graph, throwable);
+ maxSeverity.except(graph, throwable);
}
});
}
- @Override
- public void finished(AsyncReadGraph graph) {
- procedure.execute(graph, maxSeverity.get());
- }
- @Override
- public void exception(AsyncReadGraph graph, Throwable throwable) {
- procedure.exception(graph, throwable);
- }
- });
+ maxSeverity.dec(graph);
+ } catch (DatabaseException e) {
+ maxSeverity.except(graph, e);
+ return;
+ }
+
}
}