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1
24 package org.riotfamily.components.property;
25
26 import java.io.File  ;
27 import java.io.IOException ;
28 import java.util.Map ;
29
30 import org.apache.commons.logging.Log;
31 import org.apache.commons.logging.LogFactory;
32 import org.riotfamily.common.image.Thumbnailer;
33 import org.riotfamily.common.web.file.FileStore;
34
35
36
40 public class ThumbnailPropertyProcessor extends PropertyProcessorAdapter {
41
42 private static final Log log = LogFactory.getLog(ThumbnailPropertyProcessor.class);
43
44 private static final String MTIME_SUFFIX = "-mtime";
45
46 private String source;
47
48 private String dest;
49
50 private int width;
51
52 private int height;
53
54 private String format = "jpg";
55
56 private FileStore fileStore;
57
58 private Thumbnailer thumbnailer;
59
60 private File tempDir;
61
62 public void setSource(String source) {
63 this.source = source;
64 }
65
66 public void setDest(String dest) {
67 this.dest = dest;
68 }
69
70 public void setFileStore(FileStore fileStore) {
71 this.fileStore = fileStore;
72 }
73
74 public void setThumbnailer(Thumbnailer thumbnailer) {
75 this.thumbnailer = thumbnailer;
76 }
77
78 public void setFormat(String format) {
79 this.format = format;
80 }
81
82 public void setWidth(int width) {
83 this.width = width;
84 }
85
86 public void setHeight(int height) {
87 this.height = height;
88 }
89
90 public void convertToStrings(Map map) {
91 try {
92 String sourceUri = (String ) map.get(source);
93 File sourceFile = fileStore.retrieve(sourceUri);
94
95 String mtime = (String ) map.get(dest + MTIME_SUFFIX);
96 if (mtime == null || Long.parseLong(mtime) < sourceFile.lastModified()) {
97 File tempFile = File.createTempFile("thumb", "." + format, tempDir);
98 thumbnailer.renderThumbnail(sourceFile, tempFile, width, height);
99 String destUri = (String ) map.get(dest);
100 if (destUri != null) {
101 fileStore.delete(destUri);
102 }
103 destUri = fileStore.store(tempFile, null);
104 map.put(dest, destUri);
105 map.put(dest + MTIME_SUFFIX, String.valueOf(System.currentTimeMillis()));
106 }
107 }
108 catch (IOException e) {
109 log.error(e);
110 }
111 }
112
113 }
114 |
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