forked from actframework/actframework
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathDestroyable.java
More file actions
157 lines (142 loc) · 5.27 KB
/
Destroyable.java
File metadata and controls
157 lines (142 loc) · 5.27 KB
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
package act;
/*-
* #%L
* ACT Framework
* %%
* Copyright (C) 2014 - 2017 ActFramework
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
import act.handler.builtin.controller.RequestHandlerProxy;
import act.handler.builtin.controller.impl.ReflectedHandlerInvoker;
import org.osgl.util.IO;
import java.io.Closeable;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Locale;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.context.RequestScoped;
import javax.enterprise.context.SessionScoped;
public interface Destroyable {
void destroy();
boolean isDestroyed();
Class<? extends Annotation> scope();
enum Util {
;
/**
* Helper method to destroy all elements in a in a {@link Destroyable} collection
*
* @param col the collection contains {@link Destroyable} elements
* @deprecated use {@link #destroyAll(Collection, Class)} instead
*/
public static void destroyAll(Collection<? extends Destroyable> col) {
destroyAll(col, null);
}
public static void destroyAll(Collection<? extends Destroyable> col, Class<? extends Annotation> scope) {
for (Destroyable e : col) {
if (inScope(e, scope)) {
e.destroy();
if (e instanceof Closeable) {
IO.close((Closeable) e);
}
}
}
}
/**
* Helper method to destroy all {@link Destroyable} elements,
* and close all {@link Closeable} elements in the collection specified
*
* @param col the collection might contains {@link Destroyable} and
* {@link Closeable} elements
*/
@Deprecated
public static void tryDestroyAll(Collection<?> col) {
tryDestroyAll(col, null);
}
/**
* Helper method to destroy all {@link Destroyable} elements,
* and close all {@link Closeable} elements in the collection specified
*
* @param col the collection might contains {@link Destroyable} and
* {@link Closeable} elements
* @param scope specify the scope annotation.
*/
public static void tryDestroyAll(Collection<?> col, Class<? extends Annotation> scope) {
if (null == col) {
return;
}
for (Object o : col) {
if (inScope(o, scope)) {
try {
if (o instanceof Destroyable) {
((Destroyable) o).destroy();
}
} catch (Exception e) {
Act.LOGGER.warn(e, "Error encountered destroying instance of %s", o.getClass().getName());
// keep destroy next one
}
if (o instanceof Closeable) {
IO.close((Closeable) o);
}
}
}
//col.clear();
}
public static void tryDestroy(Object o) {
tryDestroy(o, null);
}
public static void tryDestroy(Object o, Class<? extends Annotation> scope) {
if (null == o) {
return;
}
if (!inScope(o, scope)) {
return;
}
if (o instanceof Destroyable) {
((Destroyable) o).destroy();
}
if (o instanceof Closeable) {
IO.close((Closeable) o);
}
}
private static boolean inScope(Object o, Class<? extends Annotation> scope) {
if (null == o) {
return false;
}
if (null == scope || scope == ApplicationScoped.class) {
return true;
}
Class<?> c = o.getClass();
// performance tune - most frequent types in ActionContext
if (String.class == c || Method.class == c || Boolean.class == c) {
return false;
}
if (RequestHandlerProxy.class == c || ReflectedHandlerInvoker.class == c) {
return ApplicationScoped.class == scope;
}
if (Integer.class == c || Locale.class == c || Long.class == c || Double.class == c || Enum.class.isAssignableFrom(c)) {
return false;
}
if (c.isAnnotationPresent(scope)) {
return true;
}
if (scope == SessionScoped.class) {
// RequestScoped is always inside Session scope
return c.isAnnotationPresent(RequestScoped.class);
}
return false;
}
}
}