X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db.impl%2Fsrc%2Forg%2Fsimantics%2Fdb%2Fimpl%2Fquery%2FOrderedSet.java;h=e850e96f1bf6b94745b5946c5bcf578312715d42;hb=1dfc44ff89362fb4500ee9427432541b92d1953f;hp=e940a3bad037f5a9188a4a17c3e2dc5a298be5e1;hpb=969bd23cab98a79ca9101af33334000879fb60c5;p=simantics%2Fplatform.git diff --git a/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/OrderedSet.java b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/OrderedSet.java index e940a3bad..e850e96f1 100644 --- a/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/OrderedSet.java +++ b/bundles/org.simantics.db.impl/src/org/simantics/db/impl/query/OrderedSet.java @@ -1,243 +1,92 @@ -/******************************************************************************* - * Copyright (c) 2007, 2010 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 java.util.concurrent.Semaphore; - -import org.simantics.db.common.exception.DebugException; -import org.simantics.db.impl.graph.ReadGraphImpl; -import org.simantics.db.impl.procedure.IntProcedureAdapter; -import org.simantics.db.procedure.ListenerBase; - -final public class OrderedSet extends CollectionUnaryQuery { - -// public ArrayList procs = null; - - public OrderedSet(final int r) { - super(r); - } - - final static OrderedSet entry(final QueryProcessor provider, final int r) { - - return (OrderedSet)provider.orderedSetMap.get(r); - - } - - final static void runner(ReadGraphImpl graph, final int r, final QueryProcessor provider, OrderedSet cached, final CacheEntry parent, ListenerBase listener, final IntProcedure procedure) { - - OrderedSet entry = cached != null ? cached : (OrderedSet)provider.orderedSetMap.get(r); - if(entry == null) { - - entry = new OrderedSet(r); - entry.setPending(); - entry.clearResult(provider.querySupport); - entry.putEntry(provider); - - provider.performForEach(graph, entry, parent, listener, procedure); - - } else { - - if(entry.isPending()) { - synchronized(entry) { - if(entry.isPending()) { - throw new IllegalStateException(); -// if(entry.procs == null) entry.procs = new ArrayList(); -// entry.procs.add(procedure); -// provider.registerDependencies(graph, entry, parent, listener, procedure, false); -// return; - } - } - } - provider.performForEach(graph, entry, parent, listener, procedure); - } - - } - - final public static void queryEach(ReadGraphImpl graph, final int r, final QueryProcessor provider, final CacheEntry parent, final ListenerBase listener, final IntProcedure procedure) { - - assert(r != 0); - - final OrderedSet entry = (OrderedSet)provider.orderedSetMap.get(r); - - if(parent == null && !(listener != null)) { - if(entry != null && entry.isReady()) { - entry.performFromCache(graph, provider, procedure); - return; - } - } - - runner(graph, r, provider, entry, parent, listener, procedure); - - } - - @Override - public UnaryQuery getEntry(QueryProcessor provider) { - return provider.orderedSetMap.get(id); - } - - @Override - public void putEntry(QueryProcessor provider) { - provider.orderedSetMap.put(id, this); - } - - @Override - final public void removeEntry(QueryProcessor provider) { - provider.orderedSetMap.remove(id); - } - - private int current = 0; - - private boolean nextElement(ReadGraphImpl graph, final QueryProcessor provider, final IntProcedure procedure, final boolean store) { - - provider.querySupport.ensureLoaded(graph, current); - - boolean found = provider.querySupport.getObjects(graph, current, id, new IntProcedure() { - - @Override - public void execute(ReadGraphImpl graph, int i) { - if(i != id) { - addOrSet(i); - procedure.execute(graph, i); - } - current = i; - } - - @Override - public void exception(ReadGraphImpl graph, Throwable t) { - if(DebugException.DEBUG) new DebugException(t).printStackTrace(); - procedure.exception(graph, t); - } - - @Override - public void finished(ReadGraphImpl graph) { - } - - }); - - if(!found) current = id; - - if(current == id) { - finish(graph, provider); - procedure.finished(graph); - return false; - } else { - return true; - } - - } - - @Override - public void clearResult(QuerySupport support) { - current = id; - setResult(new IntArray()); - } - - @Override - public Object computeForEach(ReadGraphImpl graph, final QueryProcessor provider, final IntProcedure procedure, final boolean store) { - - while(nextElement(graph, provider, procedure, store)); - - return getResult(); - - } - - @Override - public String toString() { - return "OrderedSet[" + id + "]"; - } - - final private void finish(ReadGraphImpl graph, QueryProcessor provider) { - - assert(isPending()); - -// ArrayList p = null; - - synchronized(this) { - - setReady(); -// p = procs; -// procs = null; - - } - -// if(p != null) { -// IntArray v = (IntArray)getResult(); -// if(v.data == null) { -// if(v.sizeOrData != IntArray.NO_DATA) { -// for(IntProcedure proc : p) proc.execute(graph, v.sizeOrData); -// } -// } else { -// for(IntProcedure proc : p) { -// for(int i = 0;i < v.sizeOrData ; i++) proc.execute(graph, v.data[i]); -// } -// } -// for(IntProcedure proc : p) proc.finished(graph); -// } - - } - - final public void addOrSet(int add) { - - assert(isPending()); - - IntArray value = (IntArray)getResult(); - value.add(add); - - } - - @Override - public Object performFromCache(ReadGraphImpl graph, QueryProcessor provider, final IntProcedure procedure) { - - assert(isReady()); - - if(handleException(graph, procedure)) return EXCEPTED; - - final IntArray value = (IntArray)getResult(); - if(value.data == null) { - if(value.sizeOrData != IntArray.NO_DATA) procedure.execute(graph, value.sizeOrData); - } else { - for(int i = 0;i < value.sizeOrData ; i++) procedure.execute(graph, value.data[i]); - } - - procedure.finished(graph); - - return value; - - } - - @Override - public void recompute(ReadGraphImpl graph, QueryProcessor provider) { - - final Semaphore s = new Semaphore(0); - - computeForEach(graph, provider, new IntProcedureAdapter() { - - @Override - public void finished(ReadGraphImpl graph) { - s.release(); - } - - @Override - public void exception(ReadGraphImpl graph, Throwable t) { - throw new Error("Error in recompute.", t); - } - - }, true); - - while(!s.tryAcquire()) { - provider.resume(graph); - } - - } - -} +/******************************************************************************* + * Copyright (c) 2007, 2010 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.concurrent.atomic.AtomicInteger; + +import org.simantics.db.common.exception.DebugException; +import org.simantics.db.exception.DatabaseException; +import org.simantics.db.impl.graph.ReadGraphImpl; + +final public class OrderedSet extends CollectionUnaryQuery { + + public OrderedSet(final int r) { + super(r); + } + + @Override + final public void removeEntry(QueryProcessor provider) { + provider.cache.remove(this); + } + + private static int nextElement(ReadGraphImpl graph, int current, int orderedSet, OrderedSet parent, final IntProcedure procedure) throws DatabaseException { + + QueryProcessor processor = graph.processor; + + processor.querySupport.ensureLoaded(graph, current); + + AtomicInteger res = new AtomicInteger(0); + + processor.querySupport.getObjects(graph, current, orderedSet, new IntProcedure() { + + @Override + public void execute(ReadGraphImpl graph, int i) throws DatabaseException { + if(i != orderedSet) { + procedure.execute(graph, i); + } + res.set(i); + } + + @Override + public void exception(ReadGraphImpl graph, Throwable t) throws DatabaseException { + if(DebugException.DEBUG) new DebugException(t).printStackTrace(); + procedure.exception(graph, t); + } + + @Override + public void finished(ReadGraphImpl graph) { + } + + }); + + if(res.get() == orderedSet) { + procedure.finished(graph); + } + + return res.get(); + + } + + @Override + public void compute(ReadGraphImpl graph, final IntProcedure procedure) throws DatabaseException { + computeForEach(graph, id, this, procedure); + } + + static void computeForEach(ReadGraphImpl graph, int orderedSet, final OrderedSet entry, final IntProcedure procedure_) throws DatabaseException { + + IntProcedure procedure = entry != null ? entry : procedure_; + + int current = nextElement(graph, orderedSet, orderedSet, entry, procedure); + while(current != orderedSet) { + current = nextElement(graph, current, orderedSet, entry, procedure); + } + + if(entry != null) entry.performFromCache(graph, procedure_); + + } + + @Override + public String toString() { + return "OrderedSet[" + id + "]"; + } + +}