1 package org.ibex.mail.target;
2 import org.ibex.mail.*;
3 import org.ibex.util.*;
4 import org.ibex.mail.*;
10 // FIXME: we can omit UIDNEXT!
11 // FIXME use directory date/time as UIDNEXT and file date/time as UID; need to 'correct' file date/time after changes
13 /** An exceptionally crude implementation of Mailbox relying on POSIXy filesystem semantics */
14 public class FileBasedMailbox extends Mailbox.Default {
16 private static final char slash = File.separatorChar;
17 private static final Hashtable instances = new Hashtable();
18 public static FileBasedMailbox getFileBasedMailbox(String path, boolean create) {
19 FileBasedMailbox ret = (FileBasedMailbox)instances.get(path);
20 if (ret != null) return ret;
21 File f = new File(path);
22 if (!create && !f.exists()) return null;
23 instances.put(path, ret = new FileBasedMailbox(path));
27 public static final FilenameFilter filter = new FilenameFilter() {
28 public boolean accept(File f, String s) {
29 return s.indexOf('.') != -1;
33 // Instance //////////////////////////////////////////////////////////////////////////////
37 private FileBasedMailbox(String path) throws MailException {
38 new File(this.path = path).mkdirs();
42 public Mailbox slash(String name, boolean create) {
43 return FileBasedMailbox.getFileBasedMailbox(path + slash + name, create); }
45 public String[] children() {
47 String[] list = new File(path).list();
48 for(int i=0; i<list.length; i++) {
49 if (!(new File(path + slash + list[i]).isDirectory())) continue;
50 vec.addElement(list[i]);
52 String[] ret = new String[vec.size()];
57 public Mailbox.Iterator iterator() { return new FileBasedMailbox.Iterator(); }
58 public int uidValidity() { return (int)(new File(path).lastModified() & 0xffffffL); }
60 public int uidNext() { return uidNext(false); }
61 public int uidNext(boolean inc) {
63 uidNext = new File(path + slash + "UIDNEXT");
64 if (!uidNext.exists()) {
65 File tmp = new File(uidNext + "-");
66 PrintWriter pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(tmp)));
70 tmp.renameTo(uidNext);
73 BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(uidNext)));
74 int ret = Integer.parseInt(br.readLine());
76 File tmp = new File(uidNext + "-");
77 PrintWriter pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream(tmp)));
81 tmp.renameTo(uidNext);
84 } catch (IOException e) { throw new MailException.IOException(e); }
87 public synchronized void add(Message message) { add(message, Mailbox.Flag.RECENT); }
88 public synchronized void add(Message message, int flags) {
90 int num = new File(path).list(filter).length;
91 String name = path + slash + uidNext(true) + "." +
92 ((flags & Mailbox.Flag.DELETED) == Mailbox.Flag.DELETED ? "x" : "") +
93 ((flags & Mailbox.Flag.DRAFT) == Mailbox.Flag.DRAFT ? "d" : "") +
94 ((flags & Mailbox.Flag.RECENT) == Mailbox.Flag.RECENT ? "r" : "") +
95 ((flags & Mailbox.Flag.ANSWERED) == Mailbox.Flag.ANSWERED ? "a" : "") +
96 ((flags & Mailbox.Flag.FLAGGED) == Mailbox.Flag.FLAGGED ? "f" : "") +
97 ((flags & Mailbox.Flag.SEEN) == Mailbox.Flag.SEEN ? "s" : "");
98 File target = new File(name);
99 File f = new File(target.getCanonicalPath() + "-");
100 FileOutputStream fo = new FileOutputStream(f);
104 } catch (IOException e) { throw new MailException.IOException(e); }
107 private class Iterator extends Mailbox.Default.Iterator {
109 private String[] names;
110 private boolean seen = false, deleted = false, draft = false, flagged = false, answered = false, recent = false;
111 public Iterator() { names = new File(path).list(filter); }
113 public Message cur() {
114 if (cur >= names.length) return null;
116 File file = new File(path + File.separatorChar + names[cur]);
117 return new Message(null, null, new LineReader(new InputStreamReader(new FileInputStream(file))));
118 } catch (IOException e) { throw new MailException.IOException(e); }
120 public boolean next() {
122 if (cur >= names.length) return false;
123 String name = names[cur].substring(names[cur].indexOf('.') + 1);
124 seen = name.indexOf('s') != -1;
125 deleted = name.indexOf('x') != -1;
126 flagged = name.indexOf('f') != -1;
127 draft = name.indexOf('d') != -1;
128 answered = name.indexOf('a') != -1;
129 recent = name.indexOf('r') != -1;
132 public int num() { return cur; }
134 try { return Integer.parseInt(names[cur].substring(0, names[cur].indexOf('.')));
135 } catch (NumberFormatException nfe) {
136 Log.warn(FileBasedMailbox.class, "NumberFormatException: " + names[cur].substring(0, names[cur].length() - 1));
139 private void fixflags() {
141 names[cur].substring(0, names[cur].indexOf('.') + 1) +
143 (deleted ? "x" : "") +
144 (flagged ? "f" : "") +
146 (recent ? "r" : "") +
147 (answered ? "a" : "");
148 new File(names[cur]).renameTo(new File(path + File.separatorChar + newName));
149 names[cur] = newName;
152 public void delete() { new File(names[cur]).delete(); }
153 public void set(String key, String val) { throw new MailException("not supported"); }
154 public String get(String key) { throw new MailException("not supported"); }
156 public boolean seen() { return seen; }
157 public boolean deleted() { return deleted; }
158 public boolean flagged() { return flagged; }
159 public boolean draft() { return draft; }
160 public boolean answered() { return answered; }
161 public boolean recent() { return recent; }
162 public void seen(boolean on) { seen = on; fixflags(); }
163 public void deleted(boolean on) { deleted = on; fixflags(); }
164 public void flagged(boolean on) { flagged = on; fixflags(); }
165 public void draft(boolean on) { draft = on; fixflags(); }
166 public void answered(boolean on) { answered = on; fixflags(); }
167 public void recent(boolean on) { recent = on; fixflags(); }