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
|
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.velocity.util.introspection;
import org.apache.velocity.runtime.RuntimeServices;
import org.apache.velocity.runtime.parser.node.PublicFieldExecutor;
import org.apache.velocity.runtime.parser.node.SetPublicFieldExecutor;
import org.apache.velocity.util.RuntimeServicesAware;
import org.apache.velocity.util.introspection.UberspectImpl.VelGetterImpl;
import org.apache.velocity.util.introspection.UberspectImpl.VelSetterImpl;
import org.slf4j.Logger;
import java.util.Iterator;
/**
* Implementation of Uberspect to additionally provide access to public fields.
*
* @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a>
* @author <a href="mailto:henning@apache.org">Henning P. Schmiedehausen</a>
* @author <a href="mailto:cdauth@cdauth.eu">Candid Dauth</a>
*/
public class UberspectPublicFields implements Uberspect, RuntimeServicesAware
{
/**
* Our runtime logger.
*/
protected Logger log;
/**
* the default Velocity introspector
*/
protected Introspector introspector;
/**
* init - generates the Introspector. As the setup code
* makes sure that the log gets set before this is called,
* we can initialize the Introspector using the log object.
*/
public void init()
{
introspector = new Introspector(log);
}
/**
* Property getter
* @param obj
* @param identifier
* @param i
* @return A Velocity Getter Method.
*/
public VelPropertyGet getPropertyGet(Object obj, String identifier, Info i)
{
if (obj == null)
{
return null;
}
Class claz = obj.getClass();
PublicFieldExecutor executor = new PublicFieldExecutor(log, introspector, claz, identifier);
return (executor.isAlive()) ? new VelGetterImpl(executor) : null;
}
/**
* Property setter
* @param obj
* @param identifier
* @param arg
* @param i
* @return A Velocity Setter method.
*/
public VelPropertySet getPropertySet(Object obj, String identifier, Object arg, Info i)
{
if (obj == null)
{
return null;
}
Class claz = obj.getClass();
SetPublicFieldExecutor executor = new SetPublicFieldExecutor(log, introspector, claz, identifier, arg);
return (executor.isAlive()) ? new VelSetterImpl(executor) : null;
}
/**
* @param obj
* @param info
* @return iterator
*/
public Iterator getIterator(Object obj, Info info)
{
return null;
}
/**
* @param obj
* @param method
* @param args
* @param info
* @return method wrapper
*/
public VelMethod getMethod(Object obj, String method, Object[] args, Info info)
{
return null;
}
/**
* @param rs RuntimeServices object assigned during initialization
*/
public void setRuntimeServices(RuntimeServices rs)
{
log = rs.getLog("rendering");
}
}
|
