| // 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. |
| |
| #include <jni.h> |
| |
| #include <string> |
| |
| #include <mesos/state/state.hpp> |
| |
| using mesos::state::Variable; |
| |
| extern "C" { |
| |
| /* |
| * Class: org_apache_mesos_state_Variable |
| * Method: value |
| * Signature: ()[B |
| */ |
| JNIEXPORT jbyteArray JNICALL Java_org_apache_mesos_state_Variable_value |
| (JNIEnv* env, jobject thiz) |
| { |
| jclass clazz = env->GetObjectClass(thiz); |
| |
| jfieldID __variable = env->GetFieldID(clazz, "__variable", "J"); |
| |
| Variable* variable = (Variable*) env->GetLongField(thiz, __variable); |
| |
| const std::string& value = variable->value(); |
| |
| // byte[] value = ..; |
| jbyteArray jvalue = env->NewByteArray(value.size()); |
| env->SetByteArrayRegion(jvalue, 0, value.size(), (jbyte*) value.data()); |
| |
| return jvalue; |
| } |
| |
| |
| /* |
| * Class: org_apache_mesos_state_Variable |
| * Method: mutate |
| * Signature: ([B)Lorg/apache/mesos/state/Variable; |
| */ |
| JNIEXPORT jobject JNICALL Java_org_apache_mesos_state_Variable_mutate |
| (JNIEnv* env, jobject thiz, jbyteArray jvalue) |
| { |
| jclass clazz = env->GetObjectClass(thiz); |
| |
| jfieldID __variable = env->GetFieldID(clazz, "__variable", "J"); |
| |
| Variable* variable = (Variable*) env->GetLongField(thiz, __variable); |
| |
| jbyte* value = env->GetByteArrayElements(jvalue, nullptr); |
| jsize length = env->GetArrayLength(jvalue); |
| |
| // Mutate the variable and save a copy of the result. |
| variable = |
| new Variable(variable->mutate(std::string((const char*) value, length))); |
| |
| env->ReleaseByteArrayElements(jvalue, value, 0); |
| |
| // Variable variable = new Variable(); |
| clazz = env->FindClass("org/apache/mesos/state/Variable"); |
| |
| jmethodID _init_ = env->GetMethodID(clazz, "<init>", "()V"); |
| jobject jvariable = env->NewObject(clazz, _init_); |
| |
| env->SetLongField(jvariable, __variable, (jlong) variable); |
| |
| return jvariable; |
| } |
| |
| |
| /* |
| * Class: org_apache_mesos_state_Variable |
| * Method: finalize |
| * Signature: ()V |
| */ |
| JNIEXPORT void JNICALL Java_org_apache_mesos_state_Variable_finalize |
| (JNIEnv* env, jobject thiz) |
| { |
| jclass clazz = env->GetObjectClass(thiz); |
| |
| jfieldID __variable = env->GetFieldID(clazz, "__variable", "J"); |
| |
| Variable* variable = (Variable*) env->GetLongField(thiz, __variable); |
| |
| delete variable; |
| } |
| |
| } // extern "C" { |