extensions/jni/JNIUtil.h

/**
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 NIFI_MINIFI_CPP_JNIUTIL_H
#define NIFI_MINIFI_CPP_JNIUTIL_H

#include <string>
#include <jni.h>

static inline std::string JniStringToUTF(JNIEnv *env, const jstring &jstr) {
  if(!jstr && !env) {
    return "";
  }
  const char * c_str = env->GetStringUTFChars(jstr, NULL);
  if(c_str == NULL) {
    return "";
  }
  std::string str = c_str;
  env->ReleaseStringUTFChars(jstr, c_str);
  return str;
}

#endif //NIFI_MINIFI_CPP_JNIUTIL_H