blob: b108a6b98fda16baecd59aa973bf4224ea9b1fda (
plain)
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
|
/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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.
*/
#ifndef SCOPED_JAVA_UNICODE_STRING_H_included
#define SCOPED_JAVA_UNICODE_STRING_H_included
#include "JNIHelp.h"
#include "unicode/unistr.h"
// A smart pointer that provides access to an ICU UnicodeString given a JNI
// jstring. We give ICU a direct pointer to the characters on the Java heap.
// It's clever enough to copy-on-write if necessary.
class ScopedJavaUnicodeString {
public:
ScopedJavaUnicodeString(JNIEnv* env, jstring s) : mEnv(env), mString(s) {
mChars = env->GetStringChars(mString, NULL);
const int32_t charCount = env->GetStringLength(mString);
mUnicodeString.setTo(false, mChars, charCount);
}
~ScopedJavaUnicodeString() {
mEnv->ReleaseStringChars(mString, mChars);
}
const UnicodeString& unicodeString() const {
return mUnicodeString;
}
UnicodeString& unicodeString() {
return mUnicodeString;
}
private:
JNIEnv* mEnv;
jstring mString;
const UChar* mChars;
UnicodeString mUnicodeString;
// Disallow copy and assignment.
ScopedJavaUnicodeString(const ScopedJavaUnicodeString&);
void operator=(const ScopedJavaUnicodeString&);
};
#endif // SCOPED_JAVA_UNICODE_STRING_H_included
|
