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1 /*
2 * Created on 2003-5-30 10:50:40 by joel guo
3 *
4 * vTradEx Information Technology Inc.
5 */
6 package com.cyclops.albumbuilder;
7 import java.io.File;
8 import java.io.FileFilter;
9 import java.util.Map;
10
11 import org.apache.commons.collections.MultiHashMap;
12 import org.apache.commons.configuration.Configuration;
13 import org.apache.commons.logging.Log;
14 import org.apache.commons.logging.LogFactory;
15 import org.apache.regexp.RE;
16 import org.apache.regexp.REUtil;
17 import org.apache.stratum.lifecycle.Configurable;
18 import org.apache.stratum.lifecycle.Initializable;
19 /***
20 * Add description for this class <font color="red">HERE</font>!
21 * <big><font face="黑体">惩前毖后，治病救人</font></big>
22 *
23 * @author <a href="mailto:joeblack.guo@vtradex.com">joel guo</a>
24 * @company <a href="http://www.vtradex.com">vTradEx</a>
25 * @since 2003-5-30 10:50:40
26 */
27 public class AlbumBuilderComponent implements Configurable, Initializable {
28 /*** Logger object*/
29 protected Log logger = LogFactory.getLog(getClass());
30 private Configuration rootConfiguration;
31 private MultiHashMap sourceRepository = new MultiHashMap();
32 /*** Override method configure() of super class
33 * @see org.apache.stratum.lifecycle.Configurable#configure(org.apache.commons.configuration.Configuration)
34 */
35 public void configure(Configuration conf) {
36 rootConfiguration = conf;
37 }
38 /*** Method getConfiguration() in class AlbumBuilderComponent
39 * @return Configuration object
40 */
41 public Configuration getConfiguration() {
42 return rootConfiguration;
43 }
44 /*** Method getSourceRepository()
45 * @return All source resources in a multi map
46 */
47 protected Map getSourceRepository() {
48 return sourceRepository;
49 }
50 /*** Override method initialize() of super class
51 * @see org.apache.stratum.lifecycle.Initializable#initialize()
52 */
53 public void initialize() {
54 String[] roots = getConfiguration().getStringArray("source.directory");
55 String[] patterns =
56 getConfiguration().getStringArray("source.filepattern");
57 boolean recursive =
58 getConfiguration().getBoolean("source.recursive", false);
59 for (int i = 0; i < roots.length; i++) {
60 String rootDir = roots[i];
61 scanResource(rootDir, "/", recursive, patterns);
62 }
63 }
64 private boolean scanResource(
65 String rootDir,
66 String relativePath,
67 final boolean recursive,
68 final String[] filePatterns) {
69 File dir = new File(rootDir, relativePath);
70 if (!dir.isDirectory()) {
71 return false;
72 }
73 File[] files = dir.listFiles(new FileFilter() {
74 //用是否递归和文件名模式来过滤当前目录下的文件和子目录
75 //通过一个匿名内部类实现
76 public boolean accept(File file) {
77 if (recursive && file.isDirectory()) {
78 return true;
79 } else {
80 boolean ret = false;
81 for (int i = 0; i < filePatterns.length; i++) {
82 String filePattern = filePatterns[i];
83 try {
84 RE re = REUtil.createRE("<" + filePattern + ">");
85 if (re.match("<" + file.getName() + ">")) {
86 ret = true;
87 break;
88 }
89 } catch (Exception e) {
90 logger.warn("Invalid RegExp pattern", e);
91 }
92 }
93 return ret;
94 }
95 }
96 });
97 boolean ret = false;
98 for (int i = 0; i < files.length; i++) {
99 File file = files[i];
100 //递归调用子目录
101 if (file.isDirectory()) {
102 ret
103 |= scanResource(
104 rootDir,
105 relativePath + file.getName() + "/",
106 recursive,
107 filePatterns);
108 } else {
109 //记住得到的源图片文件
110 SourceResource sr =
111 new SourceResource(rootDir, relativePath + file.getName());
112 sourceRepository.put(relativePath, sr);
113 ret = true;
114 }
115 }
116 //如果一个目录有有效的子目录但没有文件，也要把这个目录记下来
117 if (ret && !sourceRepository.containsKey(relativePath)) {
118 sourceRepository.put(relativePath, null);
119 }
120 return ret;
121 }
122 }
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