Fork of Poseidon providing Bukkit #1060 to older Beta versions (b1.0-b1.7.3)
keii.dev
1package net.minecraft.server;
2
3import java.io.DataInputStream;
4import java.io.DataOutputStream;
5import java.io.File;
6import java.io.IOException;
7import java.lang.ref.Reference;
8import java.lang.ref.SoftReference;
9import java.util.HashMap;
10import java.util.Iterator;
11import java.util.Map;
12
13public class RegionFileCache {
14
15 private static final Map a = new HashMap();
16
17 private RegionFileCache() {
18 }
19
20 public static synchronized RegionFile a(File file1, int i, int j) {
21 File file2 = new File(file1, "region");
22 File file3 = new File(file2, "r." + (i >> 5) + "." + (j >> 5) + ".mcr");
23 Reference reference = (Reference) a.get(file3);
24 RegionFile regionfile;
25
26 if (reference != null) {
27 regionfile = (RegionFile) reference.get();
28 if (regionfile != null) {
29 return regionfile;
30 }
31 }
32
33 if (!file2.exists()) {
34 file2.mkdirs();
35 }
36
37 if (a.size() >= 256) {
38 a();
39 }
40
41 regionfile = new RegionFile(file3);
42 a.put(file3, new SoftReference(regionfile));
43 return regionfile;
44 }
45
46 public static synchronized void a() {
47 Iterator iterator = a.values().iterator();
48
49 while (iterator.hasNext()) {
50 Reference reference = (Reference) iterator.next();
51
52 try {
53 RegionFile regionfile = (RegionFile) reference.get();
54
55 if (regionfile != null) {
56 regionfile.b();
57 }
58 } catch (IOException ioexception) {
59 ioexception.printStackTrace();
60 }
61 }
62
63 a.clear();
64 }
65
66 public static int b(File file1, int i, int j) {
67 RegionFile regionfile = a(file1, i, j);
68
69 return regionfile.a();
70 }
71
72 public static DataInputStream c(File file1, int i, int j) {
73 RegionFile regionfile = a(file1, i, j);
74
75 return regionfile.a(i & 31, j & 31);
76 }
77
78 public static DataOutputStream d(File file1, int i, int j) {
79 RegionFile regionfile = a(file1, i, j);
80
81 return regionfile.b(i & 31, j & 31);
82 }
83}