+++ /dev/null
-/*******************************************************************************
- * 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 gnu.trove.map.hash.TObjectIntHashMap;
-
-import java.util.concurrent.Semaphore;
-
-import org.simantics.databoard.binding.Binding;
-import org.simantics.databoard.serialization.Serializer;
-import org.simantics.databoard.util.URIStringUtils;
-import org.simantics.db.common.WriteBindings;
-import org.simantics.db.common.exception.DebugException;
-import org.simantics.db.impl.graph.ReadGraphImpl;
-import org.simantics.db.impl.procedure.InternalProcedure;
-import org.simantics.db.procedure.ListenerBase;
-
-final public class NamespaceIndex extends StringQuery<InternalProcedure<TObjectIntHashMap<String>>> {
-
-// public ArrayList<InternalProcedure<TObjectIntHashMap<String>>> procs = null;
-
- private NamespaceIndex(final String id) {
- super(id);
- }
-
- final static void runner(ReadGraphImpl graph, final String id, final QueryProcessor provider, NamespaceIndex cached, final CacheEntry parent, final ListenerBase listener, final InternalProcedure<TObjectIntHashMap<String>> procedure) {
-
- NamespaceIndex entry = cached != null ? cached : (NamespaceIndex)provider.namespaceIndexMap22.get(id);
- if(entry == null) {
-
- entry = new NamespaceIndex(id);
- 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<InternalProcedure<TObjectIntHashMap<String>>>();
-// 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 String id, final QueryProcessor provider, final CacheEntry parent, final ListenerBase listener, final InternalProcedure<TObjectIntHashMap<String>> procedure) {
-
- final NamespaceIndex entry = (NamespaceIndex)provider.namespaceIndexMap22.get(id);
-
- if(parent == null && listener == null && entry != null && entry.isReady()) {
- entry.performFromCache(graph, provider, procedure);
- return;
- }
-
- runner(graph, id, provider, entry, parent, listener, procedure);
-
- }
-
- @Override
- public NamespaceIndex getEntry(QueryProcessor provider) {
- return provider.namespaceIndexMap22.get(id);
- }
-
- @Override
- public void putEntry(QueryProcessor provider) {
- provider.namespaceIndexMap22.put(id, this);
- }
-
- @Override
- final public void removeEntry(QueryProcessor provider) {
- provider.namespaceIndexMap22.remove(id);
- }
-
- final private void index(ReadGraphImpl graph, final QueryProcessor provider, int root, final InternalProcedure<TObjectIntHashMap<String>> procedure) {
-
- if(root == 0) {
- add2(graph, null);
- procedure.execute(graph, null);
-// System.err.println("NamespaceIndex[" + id + "]->null");
- return;
- }
-
- final int consistsOf = provider.getConsistsOf();
- final int hasName = provider.getHasName();
-
- final TObjectIntHashMap<String> result = new TObjectIntHashMap<String>();
-
- Objects.runner(graph, root, consistsOf, graph.parent, null, new SyncIntProcedure() {
-
- @Override
- public void run(ReadGraphImpl graph) {
-
- if(isPending()) {
- add2(graph, result);
- procedure.execute(graph, result);
-// System.err.println("NamespaceIndex[" + id + "]->" + result.size());
- } else {
- procedure.exception(graph, (Throwable)statusOrException);
- }
-
- }
-
- @Override
- public void finished(ReadGraphImpl graph) {
-
- dec(graph);
-
- }
-
- @Override
- public void execute(ReadGraphImpl graph, final int obj) {
-
- //System.out.println(id + " => " + obj);
-
- inc();
-
- Objects.runner(graph, obj, hasName, graph.parent, null, new IntProcedure() {
-
- @Override
- public void execute(ReadGraphImpl graph, int i) {
-
- inc();
-
- ValueQuery.queryEach(graph, i, NamespaceIndex.this, null, new InternalProcedure<byte[]>() {
-
- @Override
- public void execute(ReadGraphImpl graph, byte[] value) {
-
- if(value != null) {
-
- try {
-
- Binding b = WriteBindings.STRING;
- Serializer serializer = b.serializer();
- final String part = (String)serializer.deserialize(value);
-
- synchronized(result) {
- Object previous = result.put(URIStringUtils.escape(part), obj);
- // TODO: this is not the most elegant solution
- if(previous != null) previous = "";
- }
-
- } catch (Throwable e) {
- if(DebugException.DEBUG) new DebugException(e).printStackTrace();
- }
-
- }
-
- dec(graph);
-
- }
-
- @Override
- public void exception(ReadGraphImpl graph, Throwable t) {
- except(t);
- dec(graph);
- }
-
- });
-
- }
-
- @Override
- public void finished(ReadGraphImpl graph) {
- dec(graph);
- }
-
- @Override
- public void exception(ReadGraphImpl graph, Throwable t) {
- except(t);
- dec(graph);
- }
-
- });
-
- }
-
- });
-
- }
-
- @Override
- public void computeForEach(ReadGraphImpl graph, final QueryProcessor processor, final InternalProcedure<TObjectIntHashMap<String>> procedure) {
-
-// System.err.println("NamespaceIndex " + id);
-
- if("http://".equals(id) || "http:/".equals(id)) {
- index(graph, processor, processor.getRootLibrary(), procedure);
- } else {
- final String[] parts = URIStringUtils.splitURI(id);
- if(parts != null) {
- NamespaceIndex.queryEach(graph, parts[0], processor, this, null, new InternalProcedure<TObjectIntHashMap<String>>() {
-
- @Override
- public void execute(ReadGraphImpl graph, TObjectIntHashMap<String> index) {
-
- if(index != null) {
- index(graph, processor, index.get(parts[1]), procedure);
- } else {
- add2(graph, null);
- procedure.execute(graph, null);
-// System.err.println("NamespaceIndex[" + id + "]->null");
- }
-
- }
-
- @Override
- public void exception(ReadGraphImpl graph, Throwable t) {
- if(DebugException.DEBUG) new DebugException(t).printStackTrace();
- except(t);
- procedure.exception(graph, t);
- }
-
- });
- } else {
- add2(graph, null);
- procedure.execute(graph, null);
-// System.err.println("NamespaceIndex[" + id + "]->null");
- }
-
- }
-
- }
-
- @Override
- public String toString() {
- return "NamespaceIndex[" + id + "]";
- }
-
- synchronized private void add(TObjectIntHashMap<String> result) {
-
- throw new Error("Not possible!");
-
- }
-
- private void add2(ReadGraphImpl graph, TObjectIntHashMap<String> result) {
-
- if(!isPending()) {
- new Exception(""+hashCode()).printStackTrace();
- }
-
- assert(isPending());
-
-// ArrayList<InternalProcedure<TObjectIntHashMap<String>>> p = null;
-
- synchronized(this) {
-
- setResult(result);
- setReady();
-// p = procs;
-// procs = null;
-
- }
-
-// if(p != null) {
-//
-// for(InternalProcedure<TObjectIntHashMap<String>> proc : p) proc.execute(graph, result);
-//
-// }
-
- }
-
- @Override
- public void performFromCache(ReadGraphImpl graph, QueryProcessor provider, InternalProcedure<TObjectIntHashMap<String>> procedure) {
-
- assert(isReady());
-
- if(handleException(graph, procedure)) return;
-
- procedure.execute(graph, (TObjectIntHashMap<String>)getResult());
-
- }
-
- @Override
- public synchronized void recompute(ReadGraphImpl graph, QueryProcessor provider) {
-
- final Semaphore s = new Semaphore(0);
-
- computeForEach(graph, provider, new InternalProcedure<TObjectIntHashMap<String>>() {
-
- @Override
- public void execute(ReadGraphImpl graph, TObjectIntHashMap<String> result) {
- s.release();
- }
-
- @Override
- public void exception(ReadGraphImpl graph, Throwable t) {
- if(DebugException.DEBUG) new DebugException(t).printStackTrace();
- throw new Error("Error in recompute.", t);
- }
-
- });
-
- while(!s.tryAcquire()) {
- provider.resume(graph);
- }
-
- }
-
-}
-
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