1 /*-
2 * #%L
3 * prolobjectlink-jpi
4 * %%
5 * Copyright (C) 2020 - 2021 Prolobjectlink Project
6 * %%
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 * #L%
25 */
26 package io.github.prolobjectlink.prolog;
27
28 import java.util.ArrayList;
29 import java.util.List;
30 import java.util.concurrent.ExecutionException;
31 import java.util.concurrent.FutureTask;
32 import java.util.concurrent.RunnableFuture;
33 import java.util.logging.Level;
34 import java.util.logging.Logger;
35
36 class PrologRunnable extends FutureTask<List<List<Object>>> implements RunnableFuture<List<List<Object>>> {
37
38 private final PrologCallable callable;
39
40 PrologRunnable(PrologCallable callable) {
41 super(callable);
42 this.callable = callable;
43 }
44
45 PrologRunnable(PrologProvider provider, PrologTerm... goals) {
46 this(new PrologCallable(provider, goals));
47 }
48
49 public PrologProvider getProvider() {
50 return callable.getProvider();
51 }
52
53 public List<List<Object>> get() throws InterruptedException, ExecutionException {
54 List<List<Object>> list = new ArrayList<List<Object>>();
55 try {
56 list = callable.call();
57 } catch (Exception e) {
58 Logger.getLogger(Prolog.class.getName()).log(Level.FINEST, null, e);
59 }
60 return list;
61 }
62
63 }