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https://issues.apache.org/jira/browse/MINIFICPP-268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16223016#comment-16223016
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ASF GitHub Bot commented on MINIFICPP-268:
------------------------------------------
Github user phrocker commented on a diff in the pull request:
https://github.com/apache/nifi-minifi-cpp/pull/156#discussion_r147533090
--- Diff: extensions/libarchive/ManipulateArchive.cpp ---
@@ -0,0 +1,309 @@
+/**
+ * @file ManipulateArchive.cpp
+ * ManipulateArchive 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/filesystem.hpp>
+
+#include <archive.h>
+#include <archive_entry.h>
+
+#include "ManipulateArchive.h"
+#include "core/ProcessContext.h"
+#include "core/ProcessSession.h"
+#include "core/FlowFile.h"
+
+namespace org {
+namespace apache {
+namespace nifi {
+namespace minifi {
+namespace processors {
+
+core::Property ManipulateArchive::Operation("Operation", "Operation to
perform on the archive", "");
+core::Property ManipulateArchive::Target("Target", "The path within the
archive to perform the operation on", "");
+core::Property ManipulateArchive::Destination("Destination", "Destination
for operations (move or copy) which result in new entries", "");
+core::Property ManipulateArchive::Before("Before", "For operations which
result in new entries, places the new entry before the entry specified by this
property", "");
+core::Property ManipulateArchive::After("After", "For operations which
result in new entries, places the new entry after the entry specified by this
property", "");
+core::Relationship ManipulateArchive::Success("success", "success
operational on the flow record");
+
+char const* ManipulateArchive::OPERATION_REMOVE = "remove";
+char const* ManipulateArchive::OPERATION_COPY = "copy";
+char const* ManipulateArchive::OPERATION_MOVE = "move";
+char const* ManipulateArchive::OPERATION_TOUCH = "touch";
+
+void ManipulateArchive::initialize() {
+ //! Set the supported properties
+ std::set<core::Property> properties;
+ properties.insert(Operation);
+ properties.insert(Target);
+ properties.insert(Destination);
+ properties.insert(Before);
+ properties.insert(After);
+ setSupportedProperties(properties);
+
+ //! Set the supported relationships
+ std::set<core::Relationship> relationships;
+ relationships.insert(Success);
+ setSupportedRelationships(relationships);
+}
+
+void ManipulateArchive::onTrigger(core::ProcessContext *context,
core::ProcessSession *session) {
+ std::shared_ptr<core::FlowFile> flowFile = session->get();
+
+ if (!flowFile) {
+ return;
+ }
+
+ std::string operation;
+ context->getProperty(Operation.getName(), operation);
+
+ std::string targetEntry;
+ context->getProperty(Target.getName(), targetEntry);
+
+ std::string destination;
+ context->getProperty(Destination.getName(), destination);
+
+ std::string before;
+ context->getProperty(Before.getName(), before);
+
+ std::string after;
+ context->getProperty(After.getName(), after);
+
+ // TODO(calebj) Validate properties
+
+ FocusArchiveEntry::ArchiveMetadata archiveMetadata;
+ FocusArchiveEntry::ReadCallback readCallback(this, &archiveMetadata);
+ session->read(flowFile, &readCallback);
+
+ logger_->log_info("ManipulateArchive performing operation %s on %s",
operation.c_str(), targetEntry.c_str());
+
+ // Perform operation: REMOVE
+ if (operation == OPERATION_REMOVE) {
+ for (auto it = archiveMetadata.entryMetadata.begin(); it !=
archiveMetadata.entryMetadata.end();) {
+ if ((*it).entryName == targetEntry) {
+ logger_->log_info("ManipulateArchive found entry %s for
removal", targetEntry.c_str());
+ std::remove((*it).tmpFileName.c_str());
+ it = archiveMetadata.entryMetadata.erase(it);
+ break;
+ } else {
+ it++;
+ }
+ }
+ }
+
+ // Perform operation: COPY
+ if (operation == OPERATION_COPY) {
+ bool found = false;
+ FocusArchiveEntry::ArchiveEntryMetadata copy;
+
+ // Find item to copy
+ for (auto it = archiveMetadata.entryMetadata.begin(); it !=
archiveMetadata.entryMetadata.end();) {
--- End diff --
Can clean this up with the range based loop, but that's not something
that's absolutely necessary.
> Implement ManipulateArchive processor
> -------------------------------------
>
> Key: MINIFICPP-268
> URL: https://issues.apache.org/jira/browse/MINIFICPP-268
> Project: NiFi MiNiFi C++
> Issue Type: New Feature
> Reporter: Caleb Johnson
>
> The ManipulateArchive processor extends Un/FocusArchive by allowing users to
> perform the following operations on archives supported by same:
> * Touch: create an empty file at the specified path;
> * Remove: repacks an archive, but skips the specified entry when rebuilding;
> * Move: rename an archive entry;
> * Copy: duplicate an archive entry to another path.
> Touch, move and copy operations take optional 'before' and 'after' parameters
> to control where the modified entry is to be placed relative to an existing
> one.
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