2
|
1 |
// Copyright (c) 2009 The Chromium Authors. All rights reserved.
|
|
2 |
// Use of this source code is governed by a BSD-style license that can be
|
|
3 |
// found in the LICENSE file.
|
|
4 |
|
|
5 |
package org.chromium.sdk.internal;
|
|
6 |
|
|
7 |
import java.util.Collections;
|
|
8 |
import java.util.Comparator;
|
|
9 |
import java.util.List;
|
|
10 |
import java.util.Map;
|
|
11 |
import java.util.SortedMap;
|
|
12 |
import java.util.TreeMap;
|
|
13 |
|
|
14 |
import org.chromium.sdk.JsArray;
|
|
15 |
import org.chromium.sdk.JsVariable;
|
|
16 |
import org.chromium.sdk.internal.tools.v8.MethodIsBlockingException;
|
|
17 |
|
|
18 |
/**
|
|
19 |
* A generic implementation of the JsArray interface.
|
|
20 |
*/
|
|
21 |
class JsArrayImpl extends JsObjectImpl implements JsArray {
|
|
22 |
|
|
23 |
/**
|
|
24 |
* An indexed sparse array of elements. Keys are indices, values are elements.
|
|
25 |
*/
|
|
26 |
private SortedMap<Integer, JsVariableImpl> indexToElementMap;
|
|
27 |
|
|
28 |
/**
|
|
29 |
* This constructor implies lazy resolution of object properties.
|
|
30 |
*
|
|
31 |
* @param callFrame this array belongs in
|
|
32 |
* @param parentFqn the fully qualified name of this array parent
|
|
33 |
* @param valueState the mirror corresponding to this array
|
|
34 |
*/
|
|
35 |
JsArrayImpl(CallFrameImpl callFrame, String parentFqn, ValueMirror valueState) {
|
|
36 |
super(callFrame, parentFqn, valueState);
|
|
37 |
}
|
|
38 |
|
|
39 |
private synchronized void ensureElementsMap() throws MethodIsBlockingException {
|
|
40 |
if (indexToElementMap != null) {
|
|
41 |
return;
|
|
42 |
}
|
|
43 |
SortedMap<Integer, JsVariableImpl> map =
|
|
44 |
// TODO(peter.rybin): do we need this comparator at all?
|
|
45 |
new TreeMap<Integer, JsVariableImpl>(new Comparator<Integer>() {
|
|
46 |
public int compare(Integer o1, Integer o2) {
|
|
47 |
return o1 - o2;
|
|
48 |
}
|
|
49 |
});
|
|
50 |
|
|
51 |
for (JsVariableImpl prop : getProperties()) {
|
|
52 |
String name = prop.getRawName();
|
|
53 |
Integer index = getAsArrayIndex(name);
|
|
54 |
if (index == null) {
|
|
55 |
continue;
|
|
56 |
}
|
|
57 |
map.put(index, prop);
|
|
58 |
}
|
|
59 |
indexToElementMap = Collections.unmodifiableSortedMap(map);
|
|
60 |
}
|
|
61 |
|
|
62 |
public JsVariable get(int index) throws MethodIsBlockingException {
|
|
63 |
ensureElementsMap();
|
|
64 |
return indexToElementMap.get(index);
|
|
65 |
}
|
|
66 |
|
|
67 |
public SortedMap<Integer, ? extends JsVariable> toSparseArray() throws MethodIsBlockingException {
|
|
68 |
ensureElementsMap();
|
|
69 |
return indexToElementMap;
|
|
70 |
}
|
|
71 |
|
|
72 |
public int length() {
|
|
73 |
// TODO(peter.rybin) optimize it: either read "length" from remote or count PropertyReference
|
|
74 |
// rather than JsVariableImpl
|
|
75 |
int lastIndex = -1;
|
|
76 |
List<JsVariableImpl> properties = getSubpropertiesHelper().getPropertiesLazily();
|
|
77 |
// TODO(peter.rybin): rename propRefs
|
|
78 |
for (JsVariableImpl prop : properties) {
|
|
79 |
String name = prop.getRawName();
|
|
80 |
Integer index = getAsArrayIndex(name);
|
|
81 |
if (index == null) {
|
|
82 |
continue;
|
|
83 |
}
|
|
84 |
if (index > lastIndex) {
|
|
85 |
lastIndex = index;
|
|
86 |
}
|
|
87 |
}
|
|
88 |
return lastIndex + 1;
|
|
89 |
}
|
|
90 |
|
|
91 |
@Override
|
|
92 |
public String toString() {
|
|
93 |
SortedMap<Integer, ? extends JsVariable> elements;
|
|
94 |
try {
|
|
95 |
elements = toSparseArray();
|
|
96 |
} catch (MethodIsBlockingException e) {
|
|
97 |
return "[JsArray: Exception in retrieving data]";
|
|
98 |
}
|
|
99 |
StringBuilder result = new StringBuilder();
|
|
100 |
result.append("[JsArray: length=").append(elements.size());
|
|
101 |
for (Map.Entry<Integer, ? extends JsVariable> entry : elements.entrySet()) {
|
|
102 |
result.append(',').append(entry.getKey()).append('=').append(entry.getValue());
|
|
103 |
}
|
|
104 |
result.append(']');
|
|
105 |
return result.toString();
|
|
106 |
}
|
|
107 |
|
|
108 |
@Override
|
|
109 |
public JsArrayImpl asArray() {
|
|
110 |
return this;
|
|
111 |
}
|
|
112 |
|
|
113 |
@Override
|
|
114 |
protected JsVariableImpl.NameDecorator getChildPropertyNameDecorator() {
|
|
115 |
return ARRAY_ELEMENT_DECORATOR;
|
|
116 |
}
|
|
117 |
|
|
118 |
/**
|
|
119 |
* @return integer representation of the index or null if it is not an integer
|
|
120 |
*/
|
|
121 |
static Integer getAsArrayIndex(String varName) {
|
|
122 |
if (!JsonUtil.isInteger(varName)) {
|
|
123 |
return null;
|
|
124 |
}
|
|
125 |
try {
|
|
126 |
int index = Integer.parseInt(varName);
|
|
127 |
return index;
|
|
128 |
} catch (NumberFormatException e) {
|
|
129 |
return null;
|
|
130 |
}
|
|
131 |
}
|
|
132 |
|
|
133 |
private final static JsVariableImpl.NameDecorator ARRAY_ELEMENT_DECORATOR =
|
|
134 |
new JsVariableImpl.NameDecorator() {
|
|
135 |
@Override
|
|
136 |
String decorateVarName(String rawName) {
|
|
137 |
Integer index = getAsArrayIndex(rawName);
|
|
138 |
if (index == null) {
|
|
139 |
return rawName;
|
|
140 |
}
|
|
141 |
// Fix array element indices
|
|
142 |
return OPEN_BRACKET + rawName + CLOSE_BRACKET;
|
|
143 |
}
|
|
144 |
@Override
|
|
145 |
String buildAccessSuffix(String rawName) {
|
|
146 |
Integer index = getAsArrayIndex(rawName);
|
|
147 |
if (index == null) {
|
|
148 |
return NOOP.buildAccessSuffix(rawName);
|
|
149 |
}
|
|
150 |
return OPEN_BRACKET + rawName + CLOSE_BRACKET;
|
|
151 |
}
|
|
152 |
private static final String OPEN_BRACKET = "[";
|
|
153 |
private static final String CLOSE_BRACKET = "]";
|
|
154 |
};
|
|
155 |
}
|