1 /*
2 * #%L
3 * wcm.io
4 * %%
5 * Copyright (C) 2015 wcm.io
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 io.wcm.dam.assetservice.impl.dataversion;
21
22 import java.util.regex.Pattern;
23
24 import org.slf4j.Logger;
25 import org.slf4j.LoggerFactory;
26
27 import com.day.cq.dam.api.DamEvent;
28
29 /**
30 * Common functionality for data version strategy implementations.
31 */
32 public abstract class DataVersionStrategy {
33
34 protected final String damPath;
35 protected final Logger log = LoggerFactory.getLogger(getClass());
36
37 private final Pattern pathPattern;
38
39 /**
40 * @param damPath DAM root path
41 */
42 protected DataVersionStrategy(String damPath) {
43 this.damPath = damPath;
44 this.pathPattern = Pattern.compile("^" + Pattern.quote(damPath) + "(/.*)?$");
45 }
46
47 /**
48 * @param path DAM asset or asset folder path
49 * @return true if path matches.
50 */
51 public final boolean matches(String path) {
52 return pathPattern.matcher(path).matches();
53 }
54
55 /**
56 * Is called when a DAM event affecting any asset within the DAM path occurs.
57 * @param damEvent DAM event
58 */
59 public abstract void handleDamEvent(DamEvent damEvent);
60
61 /**
62 * Returns data version for this DAM root path
63 * @return Data version. Never null.
64 */
65 public abstract String getDataVersion();
66
67 }