Github user xubo245 commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2738#discussion_r220833721
--- Diff: store/CSDK/CarbonReader.cpp ---
@@ -0,0 +1,97 @@
+/*
+ * 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 "CarbonReader.h"
+#include <jni.h>
+
+jobject CarbonReader::builder(JNIEnv *env, char *path, char *tableName) {
+
+ jniEnv = env;
+ jclass carbonReaderClass =
env->FindClass("org/apache/carbondata/sdk/file/CarbonReader");
+ jmethodID carbonReaderBuilderID =
env->GetStaticMethodID(carbonReaderClass, "builder",
+
"(Ljava/lang/String;Ljava/lang/String;)Lorg/apache/carbondata/sdk/file/CarbonReaderBuilder;");
+ jstring jpath = env->NewStringUTF(path);
+ jstring jtableName = env->NewStringUTF(tableName);
+ jvalue args[2];
+ args[0].l = jpath;
+ args[1].l = jtableName;
+ carbonReaderBuilderObject =
env->CallStaticObjectMethodA(carbonReaderClass, carbonReaderBuilderID, args);
+ return carbonReaderBuilderObject;
+}
+
+jobject CarbonReader::projection(int argc, char *argv[]) {
+ jclass carbonReaderBuilderClass =
jniEnv->GetObjectClass(carbonReaderBuilderObject);
+ jmethodID buildID = jniEnv->GetMethodID(carbonReaderBuilderClass,
"projection",
+
"([Ljava/lang/String;)Lorg/apache/carbondata/sdk/file/CarbonReaderBuilder;");
+ jclass objectArrayClass = jniEnv->FindClass("Ljava/lang/String;");
+ jobjectArray array = jniEnv->NewObjectArray(argc, objectArrayClass,
NULL);
+ for (int i = 0; i < argc; ++i) {
+ jstring value = jniEnv->NewStringUTF(argv[i]);
+ jniEnv->SetObjectArrayElement(array, i, value);
+ }
+
+ jvalue args[1];
+ args[0].l = array;
+ carbonReaderBuilderObject =
jniEnv->CallObjectMethodA(carbonReaderBuilderObject, buildID, args);
+ return carbonReaderBuilderObject;
+}
+
+jobject CarbonReader::withHadoopConf(int argc, char *argv[]) {
--- End diff --
OK, I added api:config(char *key, char *value)
---
