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Date: Tue, 23 Nov 2010 05:59:13 -0500 (EST)
From: "Peter Sturge (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
Subject: [jira] Issue Comment Edited: (SOLR-2245) MailEntityProcessor Update
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    [ https://issues.apache.org/jira/browse/SOLR-2245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12934800#action_12934800 ] 

Peter Sturge edited comment on SOLR-2245 at 11/23/10 5:58 AM:
--------------------------------------------------------------

This latest version of the updated MailEntityProcessor adds a few new features:

1. Incorporated SOLR-1958 (exception if fetchMailsSince isn't specified) into this patch
2. Added a hacky version of delta mail retrieval for scheduled import runs:
       The new property is called 'deltaFetch'. If 'true', the first time the import is run, it will read the 'fetchMailsSince' property and import as normal
       On subsequent runs (within the same process session), the import will only fetch mail since the last run.
       Because it uses a runtime system property to hold the last_index_time, and there is currently no persistence, if/when the server is restarted, the last_index_time is not saved and the original fetchMailsSince value is used.
       I couldn't find exposed APIs for the dataimport.properties file (all the methods are private or pkg protected), persistence is not included in this patch version
3. Added support for including shared folders in the import
4. Added support for including personal folders (other folders) in the import

A typical <entity> element in data-config.xml might look something like this:
{code:xml}
    <entity name="email"
      user="user@mydomain.com" 
      password="userpwd" 
      host="imap.mydomain.com" 
      fetchMailsSince="2010-08-01 00:00:00" 
      deltaFetch="true"
      include=""
      exclude=""
      recurse="false"
      folders="INBOX,Inbox,inbox"
      includeContent="true"
      processAttachments="true"
      includeOtherUserFolders="true"
      includeSharedFolders="true"
      batchSize="100"
      processor="MailEntityProcessor"
      protocol="imap"/>
{code} 


      was (Author: midiman):
    This latest version of the updated MailEntityProcessor adds a few new features:

1. Incorporated SOLR-1958 (exception if fetchMailsSince isn't specified) into this patch
2. Added a hacky version of delta mail retrieval for scheduled import runs:
       The new property is called 'deltaFetch'. If 'true', the first time the import is run, it will read the 'fetchMailsSince' property and import as normal
       On subsequent runs (within the same process session), the import will only fetch mail since the last run.
       Because it uses a runtime system property to hold the last_index_time, and there is currently no persistence, if/when the server is restarted, the last_index_time is not saved and the original fetchMailsSince value is used.
       I couldn't find exposed APIs for the dataimport.properties file (all the methods are private or pkg protected), persistence is not included in this patch version
3. Added support for including shared folders in the import
4. Added support for including personal folders (other folders) in the import

A typical {{monospaced}}<entity>{{monospaced}} element in data-config.xml might look something like this:

{{monospaced}}
    <entity name="email"
      user="user@mydomain.com" 
      password="userpwd" 
      host="imap.mydomain.com" 
      fetchMailsSince="2010-08-01 00:00:00" 
      deltaFetch="true"
      include=""
      exclude=""
      recurse="false"
      folders="INBOX,Inbox,inbox"
      includeContent="true"
      processAttachments="true"
      includeOtherUserFolders="true"
      includeSharedFolders="true"
      batchSize="100"
      processor="MailEntityProcessor"
      protocol="imap"/>
{{monospaced}}

  
> MailEntityProcessor Update
> --------------------------
>
>                 Key: SOLR-2245
>                 URL: https://issues.apache.org/jira/browse/SOLR-2245
>             Project: Solr
>          Issue Type: Improvement
>          Components: contrib - DataImportHandler
>    Affects Versions: 1.4, 1.4.1
>            Reporter: Peter Sturge
>            Priority: Minor
>             Fix For: 1.4.2
>
>         Attachments: SOLR-2245.patch, SOLR-2245.patch
>
>
> This patch addresses a number of issues in the MailEntityProcessor contrib-extras module.
> The changes are outlined here:
> * Added an 'includeContent' entity attribute to allow specifying content to be included independently of processing attachments
>      e.g. <entity includeContent="true" processAttachments="false" . . . /> would include message content, but not attachment content
> * Added a synonym called 'processAttachments', which is synonymous to the mis-spelled (and singular) 'processAttachement' property. This property functions the same as processAttachement. Default= 'true' - if either is false, then attachments are not processed. Note that only one of these should really be specified in a given <entity> tag.
> * Added a FLAGS.NONE value, so that if an email has no flags (i.e. it is unread, not deleted etc.), there is still a property value stored in the 'flags' field (the value is the string "none")
> Note: there is a potential backward compat issue with FLAGS.NONE for clients that expect the absence of the 'flags' field to mean 'Not read'. I'm calculating this would be extremely rare, and is inadviasable in any case as user flags can be arbitrarily set, so fixing it up now will ensure future client access will be consistent.
> * The folder name of an email is now included as a field called 'folder' (e.g. folder=INBOX.Sent). This is quite handy in search/post-indexing processing
> * The addPartToDocument() method that processes attachments is significantly re-written, as there looked to be no real way the existing code would ever actually process attachment content and add it to the row data
> Tested on the 3.x trunk with a number of popular imap servers.

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