summaryrefslogtreecommitdiffstats
path: root/Essentials/src/com/earth2me/essentials/textreader/TextInput.java
blob: cd7ee6ec47b18e17f3e0c9e4cac64a8f1bde2dbf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
package com.earth2me.essentials.textreader;

import com.earth2me.essentials.IEssentials;
import com.earth2me.essentials.User;
import com.earth2me.essentials.utils.StringUtil;
import java.io.*;
import java.lang.ref.SoftReference;
import java.util.*;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;


public class TextInput implements IText
{
	private final transient List<String> lines;
	private final transient List<String> chapters;
	private final transient Map<String, Integer> bookmarks;
	private final transient long lastChange;
	private final static HashMap<String, SoftReference<TextInput>> cache = new HashMap<String, SoftReference<TextInput>>();

	public TextInput(final CommandSender sender, final String filename, final boolean createFile, final IEssentials ess) throws IOException
	{

		File file = null;
		if (sender instanceof Player)
		{
			final User user = ess.getUser(sender);
			file = new File(ess.getDataFolder(), filename + "_" + StringUtil.sanitizeFileName(user.getName()) + ".txt");
			if (!file.exists())
			{
				file = new File(ess.getDataFolder(), filename + "_" + StringUtil.sanitizeFileName(user.getGroup()) + ".txt");
			}
		}
		if (file == null || !file.exists())
		{
			file = new File(ess.getDataFolder(), filename + ".txt");
		}
		if (file.exists())
		{
			lastChange = file.lastModified();
			boolean readFromfile;
			synchronized (cache)
			{
				final SoftReference<TextInput> inputRef = cache.get(file.getName());
				TextInput input;
				if (inputRef == null || (input = inputRef.get()) == null || input.lastChange < lastChange)
				{
					lines = new ArrayList<String>();
					chapters = new ArrayList<String>();
					bookmarks = new HashMap<String, Integer>();
					cache.put(file.getName(), new SoftReference<TextInput>(this));
					readFromfile = true;
				}
				else
				{
					lines = Collections.unmodifiableList(input.getLines());
					chapters = Collections.unmodifiableList(input.getChapters());
					bookmarks = Collections.unmodifiableMap(input.getBookmarks());
					readFromfile = false;
				}
			}
			if (readFromfile)
			{
				final BufferedReader bufferedReader = new BufferedReader(new FileReader(file));
				try
				{
					int lineNumber = 0;
					while (bufferedReader.ready())
					{
						final String line = bufferedReader.readLine();
						if (line == null)
						{
							break;
						}
						if (line.length() > 0 && line.charAt(0) == '#')
						{
							bookmarks.put(line.substring(1).toLowerCase(Locale.ENGLISH).replaceAll("&[0-9a-fk]", ""), lineNumber);
							chapters.add(line.substring(1).replace('&', '§').replace("§§", "&"));
						}
						lines.add(line.replace('&', '§').replace("§§", "&"));
						lineNumber++;
					}
				}
				finally
				{
					bufferedReader.close();
				}
			}
		}
		else
		{
			lastChange = 0;
			lines = Collections.emptyList();
			chapters = Collections.emptyList();
			bookmarks = Collections.emptyMap();
			if (createFile)
			{
				final InputStream input = ess.getResource(filename + ".txt");
				final OutputStream output = new FileOutputStream(file);
				try
				{
					final byte[] buffer = new byte[1024];
					int length = input.read(buffer);
					while (length > 0)
					{
						output.write(buffer, 0, length);
						length = input.read(buffer);
					}
				}
				finally
				{
					output.close();
					input.close();
				}
				throw new FileNotFoundException("File " + filename + ".txt does not exist. Creating one for you.");
			}
		}
	}

	@Override
	public List<String> getLines()
	{
		return lines;
	}

	@Override
	public List<String> getChapters()
	{
		return chapters;
	}

	@Override
	public Map<String, Integer> getBookmarks()
	{
		return bookmarks;
	}
}