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https://issues.apache.org/jira/browse/MINIFICPP-49?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16272924#comment-16272924
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ASF GitHub Bot commented on MINIFICPP-49:
-----------------------------------------
Github user minifirocks commented on a diff in the pull request:
https://github.com/apache/nifi-minifi-cpp/pull/188#discussion_r154135525
--- Diff: extensions/expression-language/ProcessContextExpr.cpp ---
@@ -0,0 +1,43 @@
+/**
+ * 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 <core/ProcessContext.h>
+
+namespace org {
+namespace apache {
+namespace nifi {
+namespace minifi {
+namespace core {
+
+bool ProcessContext::getProperty(const std::string &name, std::string
&value,
+ const std::shared_ptr<FlowFile>
&flow_file) {
+ if (expressions_.find(name) == expressions_.end()) {
--- End diff --
OK.
> NiFi Expression Language support
> --------------------------------
>
> Key: MINIFICPP-49
> URL: https://issues.apache.org/jira/browse/MINIFICPP-49
> Project: NiFi MiNiFi C++
> Issue Type: Improvement
> Reporter: Jeremy Dyer
> Assignee: Andrew Christianson
>
> An implementation of NiFi's expression language is needed for the cpp version
> of the project. The feature should support all of the same EL syntax that
> NiFi supports so that any flow developed in NiFi and then ran through the
> minifi-toolkit will generate a valid .yml configuration file. Currently if
> there are any expression language values in the flow.yml file the agent will
> not act as anticipated or crash.
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