1 /*
2 * #%L
3 * settings4j
4 * ===============================================================
5 * Copyright (C) 2008 - 2015 Brabenetz Harald, Austria
6 * ===============================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * #L%
19 */
20 package org.settings4j.settings.position;
21
22 import java.util.List;
23
24 import org.settings4j.Connector;
25 import org.settings4j.ConnectorPosition;
26
27 /**
28 * Iterates thought the given {@link ConnectorPosition}s and returns the first valid position from the given implementations.
29 *
30 * @author brabenetz
31 */
32 public class ConnectorPositionFirstValid implements ConnectorPosition {
33
34 private final ConnectorPosition[] connectorPositions;
35
36 /**
37 * @param connectorPosition
38 * the {@link ConnectorPosition}s to search for a valid position.
39 */
40 public ConnectorPositionFirstValid(final ConnectorPosition... connectorPosition) {
41 super();
42 this.connectorPositions = connectorPosition;
43 }
44
45 @Override
46 public int getPosition(final List<Connector> connectors) {
47 for (final ConnectorPosition connectorPosition : this.connectorPositions) {
48 final int position = connectorPosition.getPosition(connectors);
49 if (position != UNKNOWN_POSITION) {
50 return position;
51 }
52 }
53 return UNKNOWN_POSITION;
54 }
55
56 }