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
|
package org.pablotron.luigi;
import java.util.Map;
import java.util.HashMap;
import org.pablotron.luigi.Filter;
import org.pablotron.luigi.Template;
import org.pablotron.luigi.errors.LuigiError;
import org.pablotron.luigi.errors.UnknownTemplateError;
import org.pablotron.luigi.actions.Action;
/**
* Template cache.
*/
public final class Cache {
private final Map<String, String> strings;
private final Map<String, Filter.Handler> filters;
private final Map<String, Template> templates = new HashMap<String, Template>();
/**
* Create a new Cache instance with the given templates and filters.
*
* @param strings Template key to template string map.
* @param filters Filter key to filter handler map.
*/
public Cache(
final Map<String, String> strings,
final Map<String, Filter.Handler> filters
) {
this.strings = strings;
this.filters = filters;
}
/**
* Create a new Cache instance with the given template string map and
* the default filter map.
*
* @param strings Template key to template string map.
*/
public Cache(final Map<String, String> strings) {
this(strings, Filter.FILTERS);
}
/**
* Run specified template in this cache with the given arguments and
* return the result as a string.
*
* @param key Template key.
* @param args Template arguments map.
*
* @return Result of template run.
* @throws UnknownTemplateError if the given template does not exist.
*/
public String run(
final String key,
final Map<String, String> args
) throws LuigiError {
// run template with args
return get(key).run(args);
}
/**
* Run specified template in this cache with the given arguments and
* pass the expanded chunks to the given result handler.
*
* @param key Template key.
* @param args Template arguments map.
* @param rh Result handler.
*
* @throws UnknownTemplateError if the given template does not exist.
*/
public void run(
final String key,
final Map<String, String> args,
final ResultHandler rh
) throws LuigiError {
// run template with args and result handler
get(key).run(args, rh);
}
/**
* Does the given template exist in this cache?
* if the given template does not exist.
*
* @param key Template key
*
* @return True if the template exists in this cache, otherwise false.
*/
public boolean containsKey(final String key) {
return strings.containsKey(key);
}
/**
* Get specified template from cache, or raise an UnknownTemplateError
* if the given template does not exist.
*
* @param key Template key
*
* @return Template instance.
* @throws UnknownTemplateError if the given template does not exist.
*/
public Template get(final String key) throws LuigiError {
if (!templates.containsKey(key)) {
// make sure template exists
if (!strings.containsKey(key))
throw new UnknownTemplateError(key);
// create and cache template
templates.put(key, new Template(strings.get(key), filters));
}
// get template
return templates.get(key);
}
};
|
