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From trixpan <>
Subject [GitHub] nifi pull request #483: NIFI-1899 - Introduce ExtractEmailAttachments and Ex...
Date Fri, 01 Jul 2016 02:47:31 GMT
Github user trixpan commented on a diff in the pull request:
    --- Diff: nifi-nar-bundles/nifi-email-bundle/nifi-email-processors/src/main/java/org/apache/nifi/processors/email/
    @@ -0,0 +1,234 @@
    + * 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
    + *
    + *
    + *
    + * 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.
    + */
    +import org.apache.commons.lang3.ArrayUtils;
    +import org.apache.commons.lang3.StringUtils;
    +import org.apache.commons.mail.util.MimeMessageParser;
    +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.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.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.util.StandardValidators;
    +import javax.mail.Address;
    +import javax.mail.Header;
    +import javax.mail.Message;
    +import javax.mail.MessagingException;
    +import javax.mail.Session;
    +import javax.mail.internet.MimeMessage;
    +import java.lang.reflect.Array;
    +import java.util.ArrayList;
    +import java.util.Arrays;
    +import java.util.Collections;
    +import java.util.Date;
    +import java.util.Enumeration;
    +import java.util.HashMap;
    +import java.util.HashSet;
    +import java.util.List;
    +import java.util.Map;
    +import java.util.Properties;
    +import java.util.Set;
    +@Tags({"split", "email"})
    +@CapabilityDescription("Using the flowfile content as source of data, extract header
from an RFC  compliant  email file adding the relevant attributes to the flowfile. " +
    +        "This processor does not perform extensive RFC validation but still requires
a bare minimum compliance with RFC 2822")
    +        @WritesAttribute(attribute = "email.headers.bcc.*", description = "Each individual
BCC recipient (if available)"),
    +        @WritesAttribute(attribute = "*", description = "Each individual
CC recipient (if available)"),
    +        @WritesAttribute(attribute = "email.headers.from.*", description = "Each individual
mailbox contained in the From  of the Email (array as per RFC-2822)"),
    +        @WritesAttribute(attribute = "email.headers.message-id", description = "The value
of the Message-ID header (if available)"),
    +        @WritesAttribute(attribute = "email.headers.received_date", description = "The
Received-Date of the message (if available)"),
    +        @WritesAttribute(attribute = "email.headers.sent_date", description = "Date the
message was sent"),
    +        @WritesAttribute(attribute = "email.headers.subject", description = "Subject
of the message (if available)"),
    +        @WritesAttribute(attribute = "*", description = "Each individual
TO recipient (if available)"),
    +        @WritesAttribute(attribute = "email.attachment_count", description = "Number
of attachments of the message" )})
    +public class ExtractEmailHeaders extends AbstractProcessor {
    +    public static final String EMAIL_HEADER_BCC = "email.headers.bcc";
    +    public static final String EMAIL_HEADER_CC = "";
    +    public static final String EMAIL_HEADER_FROM = "email.headers.from";
    +    public static final String EMAIL_HEADER_MESSAGE_ID = "email.headers.message-id";
    +    public static final String EMAIL_HEADER_RECV_DATE = "email.headers.received_date";
    +    public static final String EMAIL_HEADER_SENT_DATE = "email.headers.sent_date";
    +    public static final String EMAIL_HEADER_SUBJECT = "email.headers.subject";
    +    public static final String EMAIL_HEADER_TO = "";
    +    public static final String EMAIL_ATTACHMENT_COUNT = "email.attachment_count";
    +    public static final PropertyDescriptor CAPTURED_HEADERS = new PropertyDescriptor.Builder()
    +            .name("Header List")
    +            .description("COLON separated list of headers to be extracted from the flowfile
 content. " +
    +                    "NOTE the header key is case insensitive and will be matched as lower-case."
    +                    " Values will respect email email contents.")
    --- End diff --
    indeed. addressed

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