/
PropertyParser.java
159 lines (137 loc) · 6.3 KB
/
PropertyParser.java
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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
package com.denizenscript.denizencore.objects.properties;
import com.denizenscript.denizencore.utilities.debugging.Debug;
import com.denizenscript.denizencore.objects.ObjectTag;
import java.lang.invoke.*;
import java.lang.reflect.Field;
import java.util.*;
public class PropertyParser {
@FunctionalInterface
public interface PropertyGetter {
Property get(ObjectTag obj);
}
public static class ClassPropertiesInfo {
public List<PropertyGetter> allProperties = new ArrayList<>();
public List<PropertyGetter> propertiesAnyTags = new ArrayList<>();
public List<PropertyGetter> propertiesAnyMechs = new ArrayList<>();
public List<PropertyGetter> propertiesWithMechs = new ArrayList<>();
public Map<String, PropertyGetter> propertiesByTag = new HashMap<>();
public Map<String, PropertyGetter> propertiesByMechanism = new HashMap<>();
public Map<String, String> propertyNamesByTag = new HashMap<>();
}
public static Map<Class<? extends ObjectTag>, ClassPropertiesInfo> propertiesByClass = new HashMap<>();
public static void registerPropertyGetter(PropertyGetter getter, Class<? extends ObjectTag> object, String[] tags, String[] mechs, Class property) {
ClassPropertiesInfo propInfo = propertiesByClass.get(object);
if (propInfo == null) {
propInfo = new ClassPropertiesInfo();
propertiesByClass.put(object, propInfo);
}
propInfo.allProperties.add(getter);
if (tags != null) {
String propName = property.getSimpleName();
for (String tag : tags) {
propInfo.propertiesByTag.put(tag, getter);
propInfo.propertyNamesByTag.put(tag, propName);
}
}
else {
propInfo.propertiesAnyTags.add(getter);
}
if (mechs != null) {
for (String mech : mechs) {
propInfo.propertiesByMechanism.put(mech, getter);
}
propInfo.propertiesWithMechs.add(getter);
}
else {
propInfo.propertiesAnyMechs.add(getter);
propInfo.propertiesWithMechs.add(getter);
}
}
public static String[] getStringField(Class property, String fieldName) {
try {
Field f = property.getDeclaredField(fieldName);
return (String[]) f.get(null);
}
catch (IllegalAccessException e) {
Debug.echoError("Invalid property field '" + fieldName + "' for property class '" + property.getSimpleName() + "': field is not a Set: " + e.getMessage() + "!");
}
catch (NoSuchFieldException e) {
// Ignore this exception.
}
return null;
}
public static void registerProperty(final Class property, Class<? extends ObjectTag> object, PropertyGetter getter) {
registerPropertyGetter(getter, object, getStringField(property, "handledTags"), getStringField(property, "handledMechs"), property);
}
public static void registerProperty(final Class property, Class<? extends ObjectTag> object) {
try {
final MethodHandles.Lookup lookup = MethodHandles.lookup();
CallSite site = LambdaMetafactory.metafactory(lookup, "get", // PropertyGetter#get
MethodType.methodType(PropertyGetter.class), // Signature of invoke method
MethodType.methodType(Property.class, ObjectTag.class), // signature of PropertyGetter#get
lookup.findStatic(property, "getFrom", MethodType.methodType(property, ObjectTag.class)), // signature of getFrom
MethodType.methodType(property, ObjectTag.class)); // Signature of getFrom again
PropertyGetter getter = (PropertyGetter) site.getTarget().invoke();
registerProperty(property, object, getter);
}
catch (Throwable e) {
Debug.echoError("Unable to register property '" + property.getSimpleName() + "'!");
Debug.echoError(e);
}
}
public static String getPropertiesString(ObjectTag object) {
ClassPropertiesInfo properties = propertiesByClass.get(object.getObjectTagClass());
if (properties == null) {
return "";
}
StringBuilder prop_string = new StringBuilder(properties.propertiesWithMechs.size() * 10);
for (PropertyGetter getter : properties.propertiesWithMechs) {
Property property = getter.get(object);
if (property != null) {
String description = property.getPropertyString();
if (description != null) {
prop_string.append(property.getPropertyId()).append('=')
.append(description.replace(';', (char) 0x2011)).append(';');
}
}
}
if (prop_string.length() > 0) {
return "[" + prop_string.substring(0, prop_string.length() - 1) + "]";
}
else {
return "";
}
}
public static List<Property> empty = new ArrayList<>();
public static List<Property> getProperties(ObjectTag object, String attribLow) {
ClassPropertiesInfo properties = propertiesByClass.get(object.getObjectTagClass());
if (properties == null) {
return empty;
}
PropertyGetter getter = properties.propertiesByTag.get(attribLow);
if (getter != null) {
Property prop = getter.get(object);
if (prop == null) {
return empty;
}
return Collections.singletonList(getter.get(object));
}
else {
return getProperties(object);
}
}
public static List<Property> getProperties(ObjectTag object) {
ClassPropertiesInfo properties = propertiesByClass.get(object.getObjectTagClass());
if (properties == null) {
return empty;
}
List<Property> props = new ArrayList<>(properties.allProperties.size());
for (PropertyGetter getter : properties.allProperties) {
Property prop = getter.get(object);
if (prop != null) {
props.add(prop);
}
}
return props;
}
}