1 /*******************************************************************************
2 * Copyright (c) 2007, 2018 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.db.impl.query;
14 import org.simantics.databoard.util.URIStringUtils;
15 import org.simantics.db.ObjectResourceIdMap;
16 import org.simantics.db.common.exception.DebugException;
17 import org.simantics.db.exception.DatabaseException;
18 import org.simantics.db.exception.ResourceNotFoundException;
19 import org.simantics.db.impl.graph.ReadGraphImpl;
20 import org.simantics.db.impl.procedure.InternalProcedure;
22 public class URIToResource extends StringQuery<InternalProcedure<Integer>> implements InternalProcedure<Integer> {
24 URIToResource(String id) {
29 public final void removeEntry(QueryProcessor provider) {
30 provider.cache.remove(this);
33 public Object compute(ReadGraphImpl graph, final InternalProcedure<Integer> procedure) throws DatabaseException {
34 computeForEach(graph, id, this, procedure);
38 static void computeForEach(ReadGraphImpl graph, String id, final URIToResource entry, final InternalProcedure<Integer> procedure_) throws DatabaseException {
40 InternalProcedure<Integer> procedure = entry != null ? entry : procedure_;
42 if("http://".equals(id) || "http:/".equals(id)) {
44 QueryProcessor processor = graph.processor;
45 procedure.execute(graph, processor.getRootLibrary());
49 final String[] parts = URIStringUtils.splitURI(id);
52 QueryCache.runnerURIToResource(graph, parts[0], entry, null, new InternalProcedure<Integer>() {
55 public void execute(ReadGraphImpl graph, Integer parentId) throws DatabaseException {
57 ObjectResourceIdMap<String> map = QueryCache.resultChildMap(graph, parentId, entry, null);
59 int result = map.getId(URIStringUtils.unescape(parts[1]));
61 ResourceNotFoundException e = new ResourceNotFoundException(id);
62 procedure.exception(graph, e);
64 procedure.execute(graph, result);
69 public void exception(ReadGraphImpl graph, Throwable throwable) throws DatabaseException {
70 procedure.exception(graph, throwable);
76 ResourceNotFoundException e = new ResourceNotFoundException(id);
77 procedure.exception(graph, e);
82 if(entry != null) entry.performFromCache(graph, procedure_);
86 public void addOrSet(Integer result) {
98 public String toString() {
99 return "URIToResource[" + id + "]";
103 public Object performFromCache(ReadGraphImpl graph, InternalProcedure<Integer> procedure) throws DatabaseException {
107 if(handleException(graph, procedure)) return (Throwable)getResult();
109 Integer result = (Integer)getResult();
110 procedure.execute(graph, result);
116 public void recompute(ReadGraphImpl graph) throws DatabaseException {
118 compute(graph, new InternalProcedure<Integer>() {
121 public void execute(ReadGraphImpl graph, Integer result) {
125 public void exception(ReadGraphImpl graph, Throwable t) {
126 if(DebugException.DEBUG) new DebugException(t).printStackTrace();
127 throw new Error("Error in recompute.", t);
135 public void execute(ReadGraphImpl graph, Integer result) throws DatabaseException {
143 public void exception(ReadGraphImpl graph, Throwable throwable) throws DatabaseException {
148 public long cluster(QueryProcessor processor) {
153 public void serializeKey(QuerySerializer serializer) {
154 serializer.addString(id);
158 public void serializeValue(QuerySerializer serializer) {
159 Integer value = getResult();
160 serializer.addResource(value);