diff options
| -rw-r--r-- | mullvad-jni/src/from_java.rs | 18 | ||||
| -rw-r--r-- | mullvad-jni/src/lib.rs | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/mullvad-jni/src/from_java.rs b/mullvad-jni/src/from_java.rs new file mode 100644 index 0000000000..526a83e1fb --- /dev/null +++ b/mullvad-jni/src/from_java.rs @@ -0,0 +1,18 @@ +use jni::{objects::JString, JNIEnv}; + +pub trait FromJava<'env> { + type JavaType: 'env; + + fn from_java(env: &JNIEnv<'env>, source: Self::JavaType) -> Self; +} + +impl<'env> FromJava<'env> for String { + type JavaType = JString<'env>; + + fn from_java(env: &JNIEnv<'env>, source: Self::JavaType) -> Self { + String::from( + env.get_string(source) + .expect("Failed to convert from Java String"), + ) + } +} diff --git a/mullvad-jni/src/lib.rs b/mullvad-jni/src/lib.rs index ce6d953fcd..647d07b0e3 100644 --- a/mullvad-jni/src/lib.rs +++ b/mullvad-jni/src/lib.rs @@ -1,6 +1,7 @@ #![cfg(target_os = "android")] mod daemon_interface; +mod from_java; use crate::daemon_interface::DaemonInterface; use jni::{objects::JObject, JNIEnv}; |