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9
10 package org.openlaszlo.cm;
11 import org.openlaszlo.compiler.*;
12
13 import java.io.File  ;
14 import java.io.FileInputStream ;
15 import java.io.FileNotFoundException ;
16 import java.io.FileOutputStream ;
17 import java.io.IOException ;
18 import java.io.ObjectInputStream ;
19 import java.io.ObjectOutputStream ;
20 import java.io.Serializable ;
21
22 import org.apache.log4j.*;
23
24
30 public class CachedInfo implements Serializable {
31
32 private final static Logger mLogger = Logger.getLogger(CachedInfo.class);
33 private final DependencyTracker mTracker;
34 private final Canvas mCanvas;
35 private final String mEncoding;
36
37
42 public CachedInfo(DependencyTracker tracker, Canvas canvas, String encoding) {
43 mTracker = tracker;
44 mCanvas = canvas;
45 mEncoding = encoding;
46 }
47
48
51 public static CachedInfo readFrom(File file)
52 throws CompilationError
53 {
54 CachedInfo info = null;
55
56 try {
57 FileInputStream istream = new FileInputStream (file);
58 try {
59 ObjectInputStream p = new ObjectInputStream (istream);
60 return (CachedInfo) p.readObject();
61 } finally {
62 istream.close();
63 }
64 } catch (java.io.InvalidClassException ioe) {
65 } catch (FileNotFoundException ioe) {
66 } catch (IOException ioe) {
67 CompilationError e = new CompilationError(ioe);
68 e.initPathname(file.getPath());
69 mLogger.error(e.getMessage());
70 throw e;
71 } catch (ClassNotFoundException cnfe) {
72 }
73 return new CachedInfo(null, null, null);
74 }
75
76
80 void writeTo(File file) throws IOException {
81 mLogger.debug("writeTo " + file.getAbsolutePath());
82 File dir = file.getParentFile();
83 if (dir != null) {
84 dir.mkdirs();
85 }
86 file.createNewFile();
87 FileOutputStream ostream = new FileOutputStream (file);
88 ObjectOutputStream p = new ObjectOutputStream (ostream);
89 p.writeObject(this);
90 p.flush();
91 ostream.close();
92 }
93
94 public Canvas getCanvas() {
95 mLogger.debug("Getting canvas with size " + mCanvas.getWidth() +
96 " by " + mCanvas.getHeight());
97 return mCanvas;
98 }
99
100 public String getEncoding() {
101 return mEncoding;
102 }
103
104
105 public DependencyTracker getDependencyTracker() {
106 return mTracker;
107 }
108 }
109 |
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