1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef CONSCRYPT_JNICONSTANTS_H_
18 #define CONSCRYPT_JNICONSTANTS_H_
19 
20 #include <jni.h>
21 #include "JniUtil.h"
22 
23 namespace conscrypt {
24 
25 class JniConstants {
26 private:
JniConstants()27     JniConstants() {}
~JniConstants()28     ~JniConstants() {}
29 
30 public:
31     /**
32      * Initializes the JNI constants from the environment.
33      */
34     static void init(JavaVM* vm, JNIEnv* env);
35 
36     /**
37      * Obtains the current thread's JNIEnv
38      */
getJNIEnv()39     static inline JNIEnv* getJNIEnv() {
40         return JniUtil::getJNIEnv(gJavaVM);
41     }
42 
43 public:
44     static JavaVM* gJavaVM;
45     static jclass cryptoUpcallsClass;
46     static jclass openSslInputStreamClass;
47     static jclass nativeRefClass;
48 
49     static jclass byteArrayClass;
50     static jclass calendarClass;
51     static jclass objectClass;
52     static jclass objectArrayClass;
53     static jclass integerClass;
54     static jclass inputStreamClass;
55     static jclass outputStreamClass;
56     static jclass stringClass;
57 
58     static jfieldID nativeRef_context;
59 
60     static jmethodID calendar_setMethod;
61     static jmethodID inputStream_readMethod;
62     static jmethodID integer_valueOfMethod;
63     static jmethodID openSslInputStream_readLineMethod;
64     static jmethodID outputStream_writeMethod;
65     static jmethodID outputStream_flushMethod;
66 };
67 
68 }  // namespace conscrypt
69 
70 #endif  // CONSCRYPT_JNICONSTANTS_H_
71