|
1
16 package org.apache.cocoon.components.flow.javascript;
17
18 import java.util.LinkedList  ;
19 import java.util.List ;
20
21 import org.apache.commons.jxpath.DynamicPropertyHandler;
22 import org.apache.commons.jxpath.ri.model.NodePointer;
23 import org.apache.commons.jxpath.ri.model.dynamic.DynamicPropertyPointer;
24 import org.mozilla.javascript.NativeArray;
25 import org.mozilla.javascript.Scriptable;
26 import org.mozilla.javascript.ScriptableObject;
27 import org.mozilla.javascript.Undefined;
28 import org.mozilla.javascript.Wrapper;
29
30
34 public class ScriptablePropertyPointer extends DynamicPropertyPointer {
35
36 DynamicPropertyHandler handler;
37
38 public ScriptablePropertyPointer(NodePointer parent,
39 DynamicPropertyHandler handler) {
40 super(parent, handler);
41 this.handler = handler;
42 }
43
44 public int getLength() {
45 Object obj = getBaseValue();
46 if (obj instanceof Scriptable) {
47 Scriptable node = (Scriptable)obj;
48 if (node instanceof NativeArray) {
49 return (int)((NativeArray)node).jsGet_length();
50 }
51 if (ScriptableObject.hasProperty(node, "length")) {
52 Object val = ScriptableObject.getProperty(node, "length");
53 if (val instanceof Number ) {
54 return ((Number )val).intValue();
55 }
56 }
57 }
58 return super.getLength();
59 }
60
61 public Object getImmediateNode() {
62 Object value;
63 if (index == WHOLE_COLLECTION) {
64 value = getBaseValue();
65 }
66 else {
67 value = getBaseValue();
68 if (value instanceof Scriptable) {
69 Object property =
70 ScriptableObject.getProperty((Scriptable)value, index);
71 if (property != Scriptable.NOT_FOUND) {
72 value = property; }
74 } else {
75 return super.getImmediateNode();
76 }
77 }
78 if (value instanceof Wrapper) {
79 value = ((Wrapper)value).unwrap();
80 }
81 return value;
82 }
83
84 public Object getValue() {
85 Object val = getNode();
86 if (val instanceof NativeArray) {
87 NativeArray arr = (NativeArray)val;
88 List list = new LinkedList ();
89 int len = (int)arr.jsGet_length();
90 for (int i = 0; i < len; i++) {
91 Object obj = arr.get(i, arr);
92 if (obj == Undefined.instance) {
93 obj = null;
94 }
95 list.add(obj);
96 }
97 return list;
98 }
99 return super.getValue();
100 }
101
102 public void setValue(Object value){
103 if (index == WHOLE_COLLECTION){
104 handler.setProperty(getBean(), getPropertyName(), value);
105 } else {
106 Object val = handler.getProperty(getBean(), getPropertyName());
107 if (val instanceof Scriptable) {
108 ScriptableObject.putProperty((Scriptable)val, index, value);
109 } else {
110 super.setValue(value);
111 }
112 }
113 }
114
115 public void remove(){
116 if (index == WHOLE_COLLECTION){
117 handler.setProperty(getBean(), "length", new Integer (0));
118 } else {
119 Object val = handler.getProperty(getBean(), getPropertyName());
120 if (val instanceof Scriptable) {
121 try {
122 ScriptableObject.deleteProperty((Scriptable)val, index);
123 } catch (Exception e) {
124 e.printStackTrace();
125 }
126 } else {
127 super.remove();
128 }
129 }
130 }
131
132 public boolean isCollection() {
133 Object obj = getBaseValue();
134 if (obj instanceof NativeArray) {
135 return true;
136 }
137 return super.isCollection();
138 }
139
140 public String asPath(){
141 Object obj = getBaseValue();
142 if (!(obj instanceof Scriptable)) {
143 return super.asPath();
144 }
145 StringBuffer buffer = new StringBuffer ();
146 buffer.append(getParent().asPath());
147 if (buffer.length() == 0){
148 buffer.append("/.");
149 }
150 else if (buffer.charAt(buffer.length() - 1) == '/'){
151 buffer.append('.');
152 }
153 buffer.append("[@name = '");
154 buffer.append(escape(getPropertyName()));
155 buffer.append("']");
156 if (index != WHOLE_COLLECTION && (obj instanceof NativeArray)) {
157 buffer.append('[').append(index+1).append(']');
158 }
159 return buffer.toString();
160 }
161
162 private String escape(String string){
163 int index = string.indexOf('\'');
164 while (index != -1){
165 string = string.substring(0, index) + "'" + string.substring(index + 1);
166 index = string.indexOf('\'');
167 }
168 index = string.indexOf('\"');
169 while (index != -1){
170 string = string.substring(0, index) + """ + string.substring(index + 1);
171 index = string.indexOf('\"');
172 }
173 return string;
174 }
175
176 }
177 |
Popular Tags |
Java API By Example, From Geeks To Geeks.