utils.cpp

//
// Copyright (c) 2016 Richard Chien
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//
// Created by Richard Chien on 7/7/16.
//

#include "utils.h"

#include "exception.h"

namespace natiflect {

    void CheckNotFoundException(JNIEnv *env, string what) {
        if (env->ExceptionCheck()) {
            env->ExceptionClear();
            throw NotFoundException(string("Cannot find ") + what + ".");
        }
    }

    jmethodID GetMethodID(JNIEnv *env, jclass clz, const char *name, const char *sig, bool is_static) {
        jmethodID method_id;
        if (is_static) {
            method_id = env->GetStaticMethodID(clz, name, sig);
        } else {
            method_id = env->GetMethodID(clz, name, sig);
        }
        if (env->ExceptionCheck()) {
            env->ExceptionClear();
            throw NotFoundException(string("Cannot find") + (is_static ? " static " : " ") + "method \""
                                    + name + "\" with signature \"" + sig + "\".");
        }
        return method_id;
    }

    void CheckCallMethodException(JNIEnv *env, const char *name, const char *sig, bool is_static) {
        if (env->ExceptionCheck()) {
            env->ExceptionClear();
            throw InvokeException(string("Call") + (is_static ? " static " : " ") + "method \""
                                  + name + "\" with signature \"" + sig + "\" failed.");
        }
    }

    jfieldID GetFieldID(JNIEnv *env, jclass clz, const char *name, const char *sig, bool is_static) {
        jfieldID field_id;
        if (is_static) {
            field_id = env->GetStaticFieldID(clz, name, sig);
        } else {
            field_id = env->GetFieldID(clz, name, sig);
        }
        if (env->ExceptionCheck()) {
            env->ExceptionClear();
            throw NotFoundException(string("Cannot find") + (is_static ? " static " : " ") + "field \""
                                    + name + "\" with signature \"" + sig + "\".");
        }
        return field_id;
    }

    void CheckAccessFieldException(JNIEnv *env, const char *name, const char *sig, bool is_static) {
        if (env->ExceptionCheck()) {
            env->ExceptionClear();
            throw AccessException(string("Access") + (is_static ? " static " : " ") + "field \""
                                  + name + "\" with signature \"" + sig + "\" failed.");
        }
    }
}