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Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2022/06/02 07:12:16 UTC
[GitHub] [incubator-doris] BiteTheDDDDt commented on a diff in pull request #9930: [Vectorized][UDF] support java-udaf
BiteTheDDDDt commented on code in PR #9930:
URL: https://github.com/apache/incubator-doris/pull/9930#discussion_r887636880
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be/src/vec/aggregate_functions/aggregate_function_java_udaf.h:
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@@ -0,0 +1,392 @@
+// 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.
+#pragma once
+
+#ifdef LIBJVM
+
+#include <jni.h>
+#include <unistd.h>
+
+#include <cstdint>
+#include <memory>
+
+#include "common/status.h"
+#include "gen_cpp/Exprs_types.h"
+#include "runtime/user_function_cache.h"
+#include "util/jni-util.h"
+#include "vec/aggregate_functions/aggregate_function.h"
+#include "vec/columns/column_string.h"
+#include "vec/common/exception.h"
+#include "vec/common/string_ref.h"
+#include "vec/core/block.h"
+#include "vec/core/column_numbers.h"
+#include "vec/core/field.h"
+#include "vec/core/types.h"
+#include "vec/data_types/data_type_string.h"
+#include "vec/io/io_helper.h"
+
+namespace doris::vectorized {
+
+const char* UDAF_EXECUTOR_CLASS = "org/apache/doris/udf/UdafExecutor";
+const char* UDAF_EXECUTOR_CTOR_SIGNATURE = "([B)V";
+const char* UDAF_EXECUTOR_CLOSE_SIGNATURE = "()V";
+const char* UDAF_EXECUTOR_CREATE_SIGNATURE = "()Ljava/lang/Object;";
+const char* UDAF_EXECUTOR_DESTORY_SIGNATURE = "()V";
+const char* UDAF_EXECUTOR_ADD_SIGNATURE = "(J)V";
+const char* UDAF_EXECUTOR_MERGE_SIGNATURE = "(Ljava/lang/Object;)V";
+const char* UDAF_EXECUTOR_SERIALIZE_SIGNATURE = "(Ljava/lang/Object;)V";
+const char* UDAF_EXECUTOR_DESERIALIZE_SIGNATURE = "(Ljava/lang/Object;)V";
+const char* UDAF_EXECUTOR_RESULT_SIGNATURE = "(J)Z";
+
+struct AggregateJavaUdafData {
+public:
+ AggregateJavaUdafData() = default;
+ AggregateJavaUdafData(int64_t num_args) {
+ argument_size = num_args;
+ first_init = true;
+ input_values_buffer_ptr.reset(new int64_t[num_args]);
+ input_nulls_buffer_ptr.reset(new int64_t[num_args]);
+ input_offsets_ptrs.reset(new int64_t[num_args]);
+ output_value_buffer.reset(new int64_t);
+ output_null_value.reset(new int64_t);
+ batch_size_ptr.reset(new int32_t);
+ output_offsets_ptr.reset(new int64_t);
+ output_intermediate_state_ptr.reset(new int64_t);
+ }
+
+ ~AggregateJavaUdafData() {
+ JNIEnv* env;
+ Status status;
+ RETURN_IF_STATUS_ERROR(status, JniUtil::GetJNIEnv(&env));
+ env->CallNonvirtualVoidMethod(executor_obj, executor_cl_, executor_close_id_);
+ Status s = JniUtil::GetJniExceptionMsg(env);
+ if (!s.ok()) {
+ LOG(WARNING) << "meet some error in destroy: " << s.get_error_msg();
+ }
+ env->DeleteGlobalRef(executor_obj);
+ }
+
+ Status init_udaf(const TFunction& fn) {
+ if (first_init) {
+ JNIEnv* env = nullptr;
+ RETURN_IF_ERROR(JniUtil::GetJNIEnv(&env));
+ if (env == nullptr) {
+ return Status::InternalError("Failed to get/create JVM");
+ }
+ RETURN_IF_ERROR(JniUtil::GetGlobalClassRef(env, UDAF_EXECUTOR_CLASS, &executor_cl_));
+
+ Status ret_code = register_func_id(env);
+ if (!ret_code.ok()) {
+ LOG(WARNING) << "register_func_id has error : " << ret_code.get_error_msg();
+ }
+
+ // Add a scoped cleanup jni reference object. This cleans up local refs made below.
+ JniLocalFrame jni_frame;
+ {
+ std::string local_location;
+ auto function_cache = UserFunctionCache::instance();
+ RETURN_IF_ERROR(function_cache->get_jarpath(fn.id, fn.hdfs_location, fn.checksum,
+ &local_location));
+ TJavaUdfExecutorCtorParams ctor_params;
+ ctor_params.__set_fn(fn);
+ ctor_params.__set_location(local_location);
+ ctor_params.__set_input_offsets_ptrs((int64_t)input_offsets_ptrs.get());
+ ctor_params.__set_input_buffer_ptrs((int64_t)input_values_buffer_ptr.get());
+ ctor_params.__set_input_nulls_ptrs((int64_t)input_nulls_buffer_ptr.get());
+ ctor_params.__set_output_buffer_ptr((int64_t)output_value_buffer.get());
+
+ ctor_params.__set_output_null_ptr((int64_t)output_null_value.get());
+ ctor_params.__set_output_offsets_ptr((int64_t)output_offsets_ptr.get());
+ ctor_params.__set_output_intermediate_state_ptr(
+ (int64_t)output_intermediate_state_ptr.get());
+ ctor_params.__set_batch_size_ptr((int64_t)batch_size_ptr.get());
+
+ jbyteArray ctor_params_bytes;
+
+ // Pushed frame will be popped when jni_frame goes out-of-scope.
+ RETURN_IF_ERROR(jni_frame.push(env));
+ RETURN_IF_ERROR(SerializeThriftMsg(env, &ctor_params, &ctor_params_bytes));
+ executor_obj = env->NewObject(executor_cl_, executor_ctor_id_, ctor_params_bytes);
+ }
+ RETURN_ERROR_IF_EXC(env);
+ RETURN_IF_ERROR(JniUtil::LocalToGlobalRef(env, executor_obj, &executor_obj));
+ first_init = false;
+ }
+ return Status::OK();
+ }
+
+ void add(const IColumn** columns, size_t row_num, const DataTypes& argument_types) const {
+ JNIEnv* env = nullptr;
Review Comment:
we can wrap a function `JNIEnv* get_env(string when)`
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