1 /* ***************************************************************************
2 * Copyright (c) 2012 Brabenetz Harald, Austria.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 *****************************************************************************/
17
18 package org.settings4j.settings.position;
19
20 import java.util.List;
21
22 import org.settings4j.Connector;
23 import org.settings4j.ConnectorPosition;
24
25
26 /**
27 * Iterates thought the existing connectors and return the position before the last occurrence of the given
28 * Connector-class.
29 *
30 * @author brabenetz
31 *
32 */
33 public class ConnectorPositionBeforeLastClass implements ConnectorPosition {
34
35 private final Class<? extends Connector> connectorClass;
36
37 /**
38 * @param connectorClass the connector class to search in the given connectors list.
39 */
40 public ConnectorPositionBeforeLastClass(final Class<? extends Connector> connectorClass) {
41 super();
42 this.connectorClass = connectorClass;
43 }
44
45 /** {@inheritDoc} */
46 public int getPosition(final List<Connector> connectors) {
47 int pos = 0;
48 int lastPos = UNKNOWN_POSITION;
49 for (final Connector connector : connectors) {
50 if (connectorClass.equals(connector.getClass())) {
51 lastPos = pos;
52 }
53 pos++;
54 }
55 return lastPos;
56 }
57
58 }