Github user trixpan commented on a diff in the pull request:
https://github.com/apache/nifi/pull/817#discussion_r77625666
--- Diff:
nifi-nar-bundles/nifi-email-bundle/nifi-email-processors/src/main/java/org/apache/nifi/processors/email/ExtractTNEFAttachments.java
---
@@ -0,0 +1,202 @@
+/*
+ * 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.
+ */
+package org.apache.nifi.processors.email;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.nifi.annotation.behavior.EventDriven;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.behavior.SideEffectFree;
+import org.apache.nifi.annotation.behavior.SupportsBatching;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.flowfile.attributes.CoreAttributes;
+import org.apache.nifi.logging.ComponentLog;
+import org.apache.nifi.processor.AbstractProcessor;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.ProcessorInitializationContext;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.FlowFileHandlingException;
+import org.apache.nifi.processor.io.InputStreamCallback;
+import org.apache.nifi.processor.io.OutputStreamCallback;
+import org.apache.nifi.stream.io.BufferedInputStream;
+import org.apache.poi.hmef.Attachment;
+import org.apache.poi.hmef.HMEFMessage;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+
+
+@SupportsBatching
+@EventDriven
+@SideEffectFree
+@Tags({"split", "email"})
+@InputRequirement(Requirement.INPUT_REQUIRED)
+@CapabilityDescription("Extract attachments from a mime formatted email
file, splitting them into individual flowfiles.")
+@WritesAttributes({
+ @WritesAttribute(attribute = "filename ", description = "The
filename of the attachment"),
+ @WritesAttribute(attribute =
"email.tnef.attachment.parent.filename ", description = "The filename of the
parent FlowFile"),
+ @WritesAttribute(attribute = "email.tnef.attachment.parent.uuid",
description = "The UUID of the original FlowFile.")})
+
+public class ExtractTNEFAttachments extends AbstractProcessor {
+ public static final String ATTACHMENT_ORIGINAL_FILENAME =
"email.tnef.attachment.parent.filename";
+ public static final String ATTACHMENT_ORIGINAL_UUID =
"email.tnef.attachment.parent.uuid";
+
+ public static final Relationship REL_ATTACHMENTS = new
Relationship.Builder()
+ .name("attachments")
+ .description("Each individual attachment will be routed to the
attachments relationship")
+ .build();
+ public static final Relationship REL_ORIGINAL = new
Relationship.Builder()
+ .name("original")
+ .description("The original file")
--- End diff --
addressed
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