[GitHub] [nifi-minifi-cpp] adamdebreceni commented on a change in pull request #1188: MINIFICPP-1651: Added DefragTextFlowFiles processor

[GitBox <gi...@apache.org>]

adamdebreceni commented on a change in pull request #1188:
URL: https://github.com/apache/nifi-minifi-cpp/pull/1188#discussion_r723339074



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File path: extensions/standard-processors/processors/DefragTextFlowFiles.cpp
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@@ -0,0 +1,336 @@
+/**
+ * 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 "DefragTextFlowFiles.h"
+
+#include <vector>
+
+#include "core/Resource.h"
+#include "serialization/PayloadSerializer.h"
+#include "utils/TextFragmentUtils.h"
+
+
+namespace org::apache::nifi::minifi::processors {
+
+core::Relationship DefragTextFlowFiles::Success("success", "Flowfiles that have no fragmented messages in them");
+core::Relationship DefragTextFlowFiles::Original("original", "The FlowFiles that were used to create the defragmented flowfiles");
+core::Relationship DefragTextFlowFiles::Failure("failure", "Flowfiles that failed the defragmentation process");
+core::Relationship DefragTextFlowFiles::Self("__self__", "Marks the FlowFile to be owned by this processor");
+
+core::Property DefragTextFlowFiles::Pattern(
+    core::PropertyBuilder::createProperty("Pattern")
+        ->withDescription("A regular expression to match at the start or end of messages.")
+        ->withDefaultValue("")->isRequired(true)->build());
+
+core::Property DefragTextFlowFiles::PatternLoc(
+    core::PropertyBuilder::createProperty("Pattern Location")->withDescription("Where to look for the pattern.")
+        ->withAllowableValues(PatternLocation::values())
+        ->withDefaultValue(toString(PatternLocation::START_OF_MESSAGE))->build());
+
+
+core::Property DefragTextFlowFiles::MaxBufferSize(
+    core::PropertyBuilder::createProperty("Max Buffer Size")
+        ->withDescription("The maximum buffer size, if the buffer exceeds this, it will be transferred to failure. Expected format is <size> <data unit>")
+        ->withType(core::StandardValidators::get().DATA_SIZE_VALIDATOR)->build());
+
+core::Property DefragTextFlowFiles::MaxBufferAge(
+    core::PropertyBuilder::createProperty("Max Buffer Age")->
+        withDescription("The maximum age of a buffer after which the buffer will be transferred to failure. Expected format is <duration> <time unit>")->build());
+
+void DefragTextFlowFiles::initialize() {
+  std::lock_guard<std::mutex> defrag_lock(defrag_mutex_);
+
+  setSupportedRelationships({Success, Original, Failure});
+  setSupportedProperties({Pattern, PatternLoc, MaxBufferAge, MaxBufferSize});
+}
+
+void DefragTextFlowFiles::onSchedule(core::ProcessContext* context, core::ProcessSessionFactory*) {
+  std::lock_guard<std::mutex> defrag_lock(defrag_mutex_);
+
+  std::string max_buffer_age_str;
+  if (context->getProperty(MaxBufferAge.getName(), max_buffer_age_str)) {
+    core::TimeUnit unit;
+    uint64_t max_buffer_age;
+    if (core::Property::StringToTime(max_buffer_age_str, max_buffer_age, unit) && core::Property::ConvertTimeUnitToMS(max_buffer_age, unit, max_buffer_age)) {
+      buffer_.setMaxAge(max_buffer_age);
+      logger_->log_trace("The Buffer maximum age is configured to be %d", max_buffer_age);

Review comment:
       we could add the unit here and to the buffer max size log as well




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