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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,161 @@ | ||
| /* | ||
| * 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 <stdexcept> | ||
| #include "CarbonWriter.h" | ||
|
|
||
| void CarbonWriter::builder(JNIEnv *env) { | ||
| if (env == NULL) { | ||
| throw std::runtime_error("JNIEnv parameter can't be NULL."); | ||
| } | ||
| jniEnv = env; | ||
| carbonWriter = env->FindClass("org/apache/carbondata/sdk/file/CarbonWriter"); | ||
| if (carbonWriter == NULL) { | ||
| throw std::runtime_error("Can't find the class in java: org/apache/carbondata/sdk/file/CarbonWriter"); | ||
| } | ||
| jmethodID carbonWriterBuilderID = env->GetStaticMethodID(carbonWriter, "builder", | ||
| "()Lorg/apache/carbondata/sdk/file/CarbonWriterBuilder;"); | ||
| if (carbonWriterBuilderID == NULL) { | ||
| throw std::runtime_error("Can't find the method in java: carbonWriterBuilder"); | ||
| } | ||
| carbonWriterBuilderObject = env->CallStaticObjectMethod(carbonWriter, carbonWriterBuilderID); | ||
| } | ||
|
|
||
| bool CarbonWriter::checkBuilder() { | ||
| if (carbonWriterBuilderObject == NULL) { | ||
| throw std::runtime_error("carbonWriterBuilder Object can't be NULL. Please call builder method first."); | ||
| } | ||
| } | ||
|
|
||
| void CarbonWriter::outputPath(char *path) { | ||
| if (path == NULL) { | ||
| throw std::runtime_error("path parameter can't be NULL."); | ||
| } | ||
| checkBuilder(); | ||
| jclass carbonWriterBuilderClass = jniEnv->GetObjectClass(carbonWriterBuilderObject); | ||
| jmethodID methodID = jniEnv->GetMethodID(carbonWriterBuilderClass, "outputPath", | ||
| "(Ljava/lang/String;)Lorg/apache/carbondata/sdk/file/CarbonWriterBuilder;"); | ||
| if (methodID == NULL) { | ||
| throw std::runtime_error("Can't find the method in java: outputPath"); | ||
| } | ||
| jstring jPath = jniEnv->NewStringUTF(path); | ||
| jvalue args[1]; | ||
| args[0].l = jPath; | ||
| carbonWriterBuilderObject = jniEnv->CallObjectMethodA(carbonWriterBuilderObject, methodID, args); | ||
| } | ||
|
|
||
| void CarbonWriter::withCsvInput(char *jsonSchema) { | ||
| if (jsonSchema == NULL) { | ||
| throw std::runtime_error("jsonSchema parameter can't be NULL."); | ||
| } | ||
| checkBuilder(); | ||
| jclass carbonWriterBuilderClass = jniEnv->GetObjectClass(carbonWriterBuilderObject); | ||
| jmethodID methodID = jniEnv->GetMethodID(carbonWriterBuilderClass, "withCsvInput", | ||
| "(Ljava/lang/String;)Lorg/apache/carbondata/sdk/file/CarbonWriterBuilder;"); | ||
| if (methodID == NULL) { | ||
| throw std::runtime_error("Can't find the method in java: withCsvInput"); | ||
| } | ||
| jstring jPath = jniEnv->NewStringUTF(jsonSchema); | ||
| jvalue args[1]; | ||
| args[0].l = jPath; | ||
| carbonWriterBuilderObject = jniEnv->CallObjectMethodA(carbonWriterBuilderObject, methodID, args); | ||
| if (jniEnv->ExceptionCheck()) { | ||
| throw jniEnv->ExceptionOccurred(); | ||
| } | ||
| }; | ||
|
|
||
| void CarbonWriter::withHadoopConf(char *key, char *value) { | ||
| if (key == NULL) { | ||
| throw std::runtime_error("key parameter can't be NULL."); | ||
| } | ||
| if (value == NULL) { | ||
| throw std::runtime_error("value parameter can't be NULL."); | ||
| } | ||
| checkBuilder(); | ||
| jclass carbonWriterBuilderClass = jniEnv->GetObjectClass(carbonWriterBuilderObject); | ||
| jmethodID methodID = jniEnv->GetMethodID(carbonWriterBuilderClass, "withHadoopConf", | ||
| "(Ljava/lang/String;Ljava/lang/String;)Lorg/apache/carbondata/sdk/file/CarbonWriterBuilder;"); | ||
| if (methodID == NULL) { | ||
| throw std::runtime_error("Can't find the method in java: withHadoopConf"); | ||
| } | ||
| jvalue args[2]; | ||
| args[0].l = jniEnv->NewStringUTF(key); | ||
| args[1].l = jniEnv->NewStringUTF(value); | ||
| carbonWriterBuilderObject = jniEnv->CallObjectMethodA(carbonWriterBuilderObject, methodID, args); | ||
| } | ||
|
|
||
| void CarbonWriter::writtenBy(char *appName) { | ||
| checkBuilder(); | ||
| jclass carbonWriterBuilderClass = jniEnv->GetObjectClass(carbonWriterBuilderObject); | ||
| jmethodID methodID = jniEnv->GetMethodID(carbonWriterBuilderClass, "writtenBy", | ||
| "(Ljava/lang/String;)Lorg/apache/carbondata/sdk/file/CarbonWriterBuilder;"); | ||
| if (methodID == NULL) { | ||
| throw std::runtime_error("Can't find the method in java: writtenBy"); | ||
| } | ||
| jvalue args[1]; | ||
| args[0].l = jniEnv->NewStringUTF(appName); | ||
| carbonWriterBuilderObject = jniEnv->CallObjectMethodA(carbonWriterBuilderObject, methodID, args); | ||
| } | ||
|
|
||
| void CarbonWriter::build() { | ||
| checkBuilder(); | ||
| jclass carbonWriterBuilderClass = jniEnv->GetObjectClass(carbonWriterBuilderObject); | ||
| jmethodID methodID = jniEnv->GetMethodID(carbonWriterBuilderClass, "build", | ||
| "()Lorg/apache/carbondata/sdk/file/CarbonWriter;"); | ||
| if (methodID == NULL) { | ||
| throw std::runtime_error("Can't find the method in java: build"); | ||
| } | ||
| carbonWriterObject = jniEnv->CallObjectMethod(carbonWriterBuilderObject, methodID); | ||
|
|
||
| if (jniEnv->ExceptionCheck()) { | ||
| throw jniEnv->ExceptionOccurred(); | ||
| } | ||
| } | ||
|
|
||
| void CarbonWriter::write(jobject obj) { | ||
| if (carbonWriterObject == NULL) { | ||
| throw std::runtime_error("Please call build first."); | ||
| } | ||
| if (writeID == NULL) { | ||
| carbonWriter = jniEnv->GetObjectClass(carbonWriterObject); | ||
| writeID = jniEnv->GetMethodID(carbonWriter, "write", "(Ljava/lang/Object;)V"); | ||
| if (writeID == NULL) { | ||
| throw std::runtime_error("Can't find the method in java: write"); | ||
| } | ||
| } | ||
| jvalue args[1]; | ||
| args[0].l = obj; | ||
| jniEnv->CallBooleanMethodA(carbonWriterObject, writeID, args); | ||
| if (jniEnv->ExceptionCheck()) { | ||
| throw jniEnv->ExceptionOccurred(); | ||
| } | ||
| }; | ||
|
|
||
| jboolean CarbonWriter::close() { | ||
| if (carbonWriterObject == NULL) { | ||
| throw std::runtime_error("Please call build first."); | ||
| } | ||
| jclass carbonWriter = jniEnv->GetObjectClass(carbonWriterObject); | ||
| jmethodID methodID = jniEnv->GetMethodID(carbonWriter, "close", "()V"); | ||
| if (methodID == NULL) { | ||
| throw std::runtime_error("Can't find the method in java: close"); | ||
| } | ||
| jniEnv->CallBooleanMethod(carbonWriterObject, methodID); | ||
| if (jniEnv->ExceptionCheck()) { | ||
| throw jniEnv->ExceptionOccurred(); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| /* | ||
| * 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> | ||
|
|
||
| class CarbonWriter { | ||
| private: | ||
| /** | ||
| * jni env | ||
| */ | ||
| JNIEnv *jniEnv; | ||
|
|
||
| /** | ||
| * carbonWriterBuilder object for building carbonWriter | ||
| * it can configure some operation | ||
| */ | ||
| jobject carbonWriterBuilderObject = NULL; | ||
|
|
||
| /** | ||
| * carbonWriter object for writing data | ||
| */ | ||
| jobject carbonWriterObject; | ||
|
|
||
| /** | ||
| * carbon writer class | ||
| */ | ||
| jclass carbonWriter; | ||
|
|
||
| /** | ||
| * write method id | ||
| */ | ||
| jmethodID writeID = NULL; | ||
|
|
||
| /** | ||
| * check whether has called builder | ||
| * | ||
| * @return true or throw exception | ||
| */ | ||
| bool checkBuilder(); | ||
| public: | ||
| /** | ||
| * create a CarbonWriterBuilder object for building carbonWriter, | ||
| * CarbonWriterBuilder object can configure different parameter | ||
| * | ||
| * @param env JNIEnv | ||
| * @return CarbonWriterBuilder object | ||
| */ | ||
| void builder(JNIEnv *env); | ||
|
|
||
| /** | ||
| * Sets the output path of the writer builder | ||
| * | ||
| * @param path is the absolute path where output files are written | ||
| * This method must be called when building CarbonWriterBuilder | ||
| * @return updated CarbonWriterBuilder | ||
| */ | ||
| void outputPath(char *path); | ||
|
|
||
| /** | ||
| * configure the schema with json style schema | ||
| * | ||
| * @param jsonSchema json style schema | ||
| * @return updated CarbonWriterBuilder | ||
| */ | ||
| void withCsvInput(char *jsonSchema); | ||
|
|
||
| /** | ||
| * configure parameter, including ak,sk and endpoint | ||
| * | ||
| * @param key key word | ||
| * @param value value | ||
| * @return CarbonWriterBuilder object | ||
| */ | ||
| void withHadoopConf(char *key, char *value); | ||
|
|
||
| /** | ||
| * @param appName appName which is writing the carbondata files | ||
| */ | ||
| void writtenBy(char *appName); | ||
|
|
||
| /** | ||
| * build carbonWriter object for writing data | ||
| * it support write data from load disk | ||
| * | ||
| * @return carbonWriter object | ||
| */ | ||
| void build(); | ||
|
|
||
| /** | ||
| * Write an object to the file, the format of the object depends on the | ||
| * implementation. | ||
| * Note: This API is not thread safe | ||
| */ | ||
| void write(jobject obj); | ||
|
|
||
| /** | ||
| * close the carbon Writer | ||
| * | ||
| * @return boolean value | ||
| */ | ||
| jboolean close(); | ||
| }; | ||
|
|
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|
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