Github user phrocker commented on a diff in the pull request:
https://github.com/apache/nifi-minifi-cpp/pull/157#discussion_r148538905
--- Diff: extensions/bustache/ApplyTemplate.cpp ---
@@ -0,0 +1,100 @@
+/**
+ * @file ApplyTemplate.cpp
+ * ApplyTemplate class implementation
+ *
+ * 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 <string.h>
+#include <iostream>
+#include <fstream>
+#include <memory>
+#include <string>
+#include <set>
+
+#include <boost/iostreams/device/mapped_file.hpp>
+
+#include <bustache/model.hpp>
+#include <bustache/format.hpp>
+
+#include "ApplyTemplate.h"
+#include "core/ProcessContext.h"
+#include "core/ProcessSession.h"
+
+
+namespace org {
+namespace apache {
+namespace nifi {
+namespace minifi {
+namespace processors {
+
+core::Property ApplyTemplate::Template("Template", "Path to the input
mustache template file", "");
+core::Relationship ApplyTemplate::Success("success", "success operational
on the flow record");
+
+void ApplyTemplate::initialize() {
+ //! Set the supported properties
+ std::set<core::Property> properties;
+ properties.insert(Template);
+ setSupportedProperties(properties);
+ //! Set the supported relationships
+ std::set<core::Relationship> relationships;
+ relationships.insert(Success);
+ setSupportedRelationships(relationships);
+}
+
+void ApplyTemplate::onTrigger(core::ProcessContext *context,
core::ProcessSession *session) {
+ auto flowFile = session->get();
+
+ if (!flowFile) {
+ return;
+ }
+
+ std::string templateFile;
+ context->getProperty(Template.getName(), templateFile);
+ WriteCallback cb(templateFile, flowFile);
+ session->write(flowFile, &cb);
+ session->transfer(flowFile, Success);
+}
+
+ApplyTemplate::WriteCallback::WriteCallback(const std::string& path,
std::shared_ptr<core::FlowFile> flowFile) {
+ logger_ =
logging::LoggerFactory<ApplyTemplate::WriteCallback>::getLogger();
+ templateFile_ = path;
+ flowFile_ = flowFile;
+}
+
+int64_t
ApplyTemplate::WriteCallback::process(std::shared_ptr<io::BaseStream> stream) {
--- End diff --
const ref on this call.
---
