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1 package org.sapia.soto.state.util;
2
3 import org.apache.commons.beanutils.BeanUtils;
4 import org.apache.commons.lang.ClassUtils;
5
6 import org.sapia.soto.state.Context;
7 import org.sapia.soto.state.Result;
8 import org.sapia.soto.state.Step;
9 import org.sapia.soto.state.helpers.ScopeParser;
10
11 import java.lang.reflect.InvocationTargetException  ;
12
13 import java.util.ArrayList ;
14 import java.util.List ;
15
16
17
25 public class FormStep implements Step {
26 private List _params = new ArrayList ();
27 private String _className;
28
29 public FormStep() {
30 }
31
32
35 public String getName() {
36 return ClassUtils.getShortClassName(getClass());
37 }
38
39 public void setClass(String className) {
40 _className = className;
41 }
42
43
46 public void execute(Result res) {
47 Object bean;
48
49 if (_className == null) {
50 bean = res.getContext().currentObject();
51 assign(bean, res);
52 } else {
53 try {
54 bean = Class.forName(_className).newInstance();
55 } catch (InstantiationException e) {
56 res.error(e);
57
58 return;
59 } catch (ClassNotFoundException e) {
60 res.error(e);
61
62 return;
63 } catch (IllegalAccessException e) {
64 res.error(e);
65
66 return;
67 }
68
69 assign(bean, res);
70 res.getContext().push(bean);
71 }
72 }
73
74 public Param createParam() {
75 Param p = new Param();
76 _params.add(p);
77
78 return p;
79 }
80
81 private void assign(Object bean, Result res) {
82 Param p;
83
84 for (int i = 0; i < _params.size(); i++) {
85 p = (Param) _params.get(i);
86
87 try {
88 p.process(bean, res.getContext());
89 } catch (InvocationTargetException e) {
90 res.error(e.getTargetException());
91
92 return;
93 } catch (IllegalAccessException e) {
94 res.error(e);
95
96 return;
97 }
98 }
99 }
100
101 public static class Param {
102 static final String ON = "on";
103 static final String TRUE = "true";
104 static final String YES = "yes";
105 static final Boolean BOOL_TRUE = new Boolean (true);
106 static final Boolean BOOL_FALSE = new Boolean (false);
107 String _from;
108 String _to;
109 String [] _scopes;
110 boolean _isBoolean;
111
112 public Param setBoolean(boolean bool) {
113 _isBoolean = bool;
114
115 return this;
116 }
117
118 public Param setFrom(String from) {
119 _from = from;
120
121 return this;
122 }
123
124 public Param setScopes(String scopes) {
125 _scopes = ScopeParser.parse(scopes);
126
127 return this;
128 }
129
130 public Param setTo(String to) {
131 _to = to;
132
133 return this;
134 }
135
136 void process(Object bean, Context ctx)
137 throws InvocationTargetException , IllegalAccessException ,
138 IllegalStateException {
139 Object value;
140
141 if (_from == null) {
142 throw new IllegalStateException ("'from' attribute not specified");
143 }
144
145 if (_to == null) {
146 throw new IllegalStateException ("'to' attribute not specified");
147 }
148
149 if (_scopes == null) {
150 value = ctx.get(_from);
151
152 if (value != null) {
153 doAssign(bean, _to, value, _isBoolean);
154 }
155 } else {
156 value = ctx.get(_from, _scopes);
157
158 if (value != null) {
159 doAssign(bean, _to, value, _isBoolean);
160 }
161 }
162 }
163
164 private static void doAssign(Object bean, String to, Object val, boolean b)
165 throws InvocationTargetException , IllegalAccessException {
166 if (b) {
167 if (val != null) {
168 val = val.toString().toLowerCase();
169
170 if (val.toString().equals(ON) || val.toString().equals(TRUE) ||
171 val.toString().equals(YES)) {
172 BeanUtils.setProperty(bean, to, BOOL_TRUE);
173 } else {
174 BeanUtils.setProperty(bean, to, BOOL_FALSE);
175 }
176 } else {
177 BeanUtils.setProperty(bean, to, BOOL_FALSE);
178 }
179 } else {
180 BeanUtils.setProperty(bean, to, val);
181 }
182 }
183 }
184 }
185 |
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