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			<!-- WebDoc-Page-Title: BibUpload Admin Guide -->
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			<h2>Contents</h2>
			<strong>1. <a href="#1">Overview</a></strong><br />
			<strong>2. <a href="#2">Configuring BibUpload</a></strong><br />
			<strong>3. <a href="#3">Running BibUpload</a></strong><br />
			3.1. <a href="#3.1">Inserting new records</a><br />
			3.2. <a href="#3.2">Inserting records into the Holding Pen</a><br />
			3.3. <a href="#3.3">Updating existing records</a><br />
			3.4. <a href="#3.4">Inserting and updating at the same time</a><br />
			3.5. <a href="#3.5">Updating preformatted output formats</a><br />
			3.6. <a href="#3.6">Uploading fulltext files</a><br />
			3.7. <a href="#3.7">Obtaining feedbacks</a><br />
			3.8. <a href="#3.8">Assigning additional informations to documents and other entities</a><br />
			3.8.1 <a href="#3.8.1">Uploading relations between documents</a><br />
			3.8.2 <a href="#3.8.2">Using temporary identifiers</a><br />


			<strong>4. <a href="#4">Batch Uploader</a></strong><br />
			4.1. <a href="#4.1">Web interface - Cataloguers</a><br />
			4.1. <a href="#4.2">Web interface - Robots</a><br />
			4.2. <a href="#4.3">Daemon mode</a><br />

			<a name="1"></a><h2>1. Overview</h2>

			<p>BibUpload enables you to upload bibliographic data in MARCXML
			format into Invenio bibliographic database. It is also used
			internally by other Invenio modules as the sole entrance of
			metadata into the bibliographic databases.</p>

			<p>Note that before uploading a MARCXML file, you may want to run
			provided <code>/opt/invenio/bin/xmlmarclint</code> on it in order
			to verify its correctness.</p>

			<a name="2"></a><h2>2. Configuring BibUpload</h2>

			<p>BibUpload takes a MARCXML file as its input. There is nothing to
			be configured for these files. If the files have to be coverted into
			MARCXML from some other format, structured or not, this is usually
			done beforehand via <a href="bibconvert-admin">BibConvert</a> module.
			</p>

			<p>Note that if you are using external system numbers for your
			records, such as when your records are being synchronized from an
			external system, then BibUpload knows about the tag 970 as the one
			containing external system number. (To change this 970 tag into
			something else, you would have to edit BibUpload config source file.)
			</p>

			<p>Note also that in the similar way BibUpload knows about OAI
			identifiers, so that it will refuse to insert the same OAI harvested
			record twice, for example.
			</p>

			<a name="3"></a><h2>3. Running BibUpload</h2>

			<a name="3.1"></a><h3>3.1 Inserting new records</h3>

			<p>Consider that you have an MARCXML file containing new records that
			is to be uploaded into the Invenio. (For example, it might have
			been produced by <a href="bibconvert-admin">BibConvert</a>.) To finish
			the upload, you would call the BibUpload script in the insert mode as
			follows:

			<blockquote>
			<pre>
			$ bibupload -i file.xml
			<pre>
			</blockquote>

			In the insert mode, all the records from the file will be treated as
			new. This means that they should not contain neither 001 tags
			(holding record IDs) nor 970 tags (holding external system numbers).
			BibUpload would refuse to upload records having these tags, in order
			to prevent potential double uploading. If your file does contain 001
			or 970, then chances are that you want to update existing records, not
			re-upload them as new, and so BibUpload will warn you about this and
			will refuse to continue.
			</p>

			<p>For example, to insert a new record, your file should look like this:

			<pre>
			<record>
			<datafield tag="100" ind1=" " ind2=" ">
			<subfield code="a">Doe, John</subfield>
			</datafield>
			<datafield tag="245" ind1=" " ind2=" ">
			<subfield code="a">On The Foo And Bar</subfield>
			</datafield>
			</record>
			</pre>
			</p>

			<a name="3.2"></a><h3>3.2 Inserting records into the Holding Pen</h3>

			<p>A special mode of BibUpload that is thigthly connected with BibEdit is the
			<em>Holding Pen</em> mode.</p>

			<p>When you insert a record using the holding pen mode such as in the following
			example:

			<blockquote>
			<pre>
			$ bibupload -o file.xml
			</pre>
			</blockquote>

			the records are not actually integrated into the database, but are instead put
			into an intermediate space called holding pen, where authorized curators can
			review them, manipulate them and eventually approve them.</p>

			<p>The holding pen is integrated with <a href="/help/admin/bibedit-admin-guide" alt="BibEdit">BibEdit</a>.</p>

			<a name="3.3"></a><h3>3.3 Updating existing records</h3>

			<p>When you want to update existing records, with the new content from
			your input MARCXML file, then your input file should contain either
			tags 001 (holding record IDs) or tag 970 (holding external system
			numbers). BibUpload will try to match existing records via 001 and
			970 and if it finds a record in the database that corresponds to a
			record from the file, it will update its content. Otherwise it will
			signal an error saying that it could not find the
			record-to-be-updated.
			</p>

			<p>For example, to update a title of record #123 via correct mode, your
			input file should contain record ID in the 001 tag and the title in
			245 tag as follows:

			<pre>
			<record>
			<controlfield tag="001">123</controlfield>
			<datafield tag="245" ind1=" " ind2=" ">
			<subfield code="a">My Newly Updated Title</subfield>
			</datafield>
			</record>
			</pre>
			</p>

			<p>There are several updating modes:
			<pre>

			-r, --replace Replace existing records by those from the XML
			MARC file. The original content is wiped out
			and fully replaced. Signals error if record
			is not found via matching record IDs or system
			numbers.
			Fields defined in Invenio config variable
			CFG_BIBUPLOAD_STRONG_TAGS are not replaced.

			Note also that `-r' can be combined with `-i'
			into an `-ir' option that would automatically
			either insert records as new if they are not
			found in the system, or correct existing
			records if they are found to exist.

			-a, --append Append fields from XML MARC file at the end of
			existing records. The original content is
			enriched only. Signals error if record is not
			found via matching record IDs or system
			numbers.

			-c, --correct Correct fields of existing records by those
			from XML MARC file. The original record
			content is modified only on those fields from
			the XML MARC file where both the tags and the
			indicators match: the original fields are
			removed and replaced by those from the XML
			MARC file. Fields not present in XML MARC
			file are not changed (unlike the -r option).
			Fields with "provenance" subfields defined in
			'CFG_BIBUPLOAD_CONTROLLED_PROVENANCE_TAGS'
			are protected against deletion unless the
			input MARCXML contains a matching
			provenance value.
			Signals error if record is not found via
			matching record IDs or system numbers.

			-d, --delete Delete fields of existing records that are
			contained in the XML MARC file. The fields in
			the original record that are not present in
			the XML MARC file are preserved.
			This is incompatible with FFT (see below).
			</pre>
			</p>

			<p>Note that if you are using the <code>--replace</code> mode, and you specify
			in the incoming MARCXML a 001 tag with a value representing a record ID that
			does not exist, bibupload will not create the record on-the-fly unless the
			<code>--force</code> parameter was also passed on the command line. This is done
			in order to avoid creating, by mistake, holes in the database list of record
			identifiers. When you ask, in fact, to <code>--replace</code> a non-existing record
			imposing a record ID with a value of, say, <code>1 000 000</code> and, subsequently, you
			<code>--insert</code> a new record, this will automatically receive an ID with
			the value <code>1 000 001</code>.</p>

			<p>If you combine the <code>--pretend</code> parameter with the above updating modes you can actually test what would be executed without modifying the database or altering the system status.</p>

			<a name="3.4"></a><h3>3.4 Inserting and updating at the same time</h3>

			<p>Note that the insert/update modes can be combined together. For
			example, if you have a file that contains a mixture of new records
			with possibly some records to be updated, then you can run:

			<blockquote>
			<pre>
			$ bibupload -i -r file.xml
			<pre>
			</blockquote>

			In this case BibUpload will try to do an update (for records having
			either 001 or 970 identifiers), or an insert (for the other ones).
			</p>

			<a name="3.6"></a><h3>3.6 Uploading fulltext files</h3>

			<p>The fulltext files can be uploaded and revised via a special FFT
			("fulltext file transfer") tag with the following
			semantic:

			<pre>
			FFT $a ... location of the docfile to upload (a filesystem path or a URL)
			$d ... docfile description (optional)
			$f ... format (optional; if not set, deduced from $a)
			$m ... new desired docfile name (optional; used for renaming files)
			$n ... docfile name (optional; if not set, deduced from $a)
			$o ... flag (repeatable subfield)
			$r ... restriction (optional, see below)
			$s ... set timestamp (optional, see below)
			$t ... docfile type (e.g. Main, Additional)
			$v ... version (used only with REVERT and DELETE-FILE, see below)
			$x ... url/path for an icon (optional)
			$z ... comment (optional)
			$w ... MoreInfo modification of the document
			$p ... MoreInfo modification of a current version of the document
			$b ... MoreInfo modification of a current version and format of the document
			$u ... MoreInfo modification of a format (of any version) of the document
			</pre>
			</p>

			<p>For example, to upload a new fulltext file <code>thesis.pdf</code>
			associated to record ID 123:

			<pre>
			<record>
			<controlfield tag="001">123</controlfield>
			<datafield tag="FFT" ind1=" " ind2=" ">
			<subfield code="a">/tmp/thesis.pdf</subfield>
			<subfield code="t">Main</subfield>
			<subfield code="d">
			This is the fulltext version of my thesis in the PDF format.
			Chapter 5 still needs some revision.
			</subfield>
			</datafield>
			</record>
			</pre>
			</p>

			<p>The FFT tag can be repetitive, so one can pass along another FFT
			tag instance containing a pointer to e.g. the thesis defence slides.
			The subfields of an FFT tag are non-repetitive.
			</p>

			<p>When more than one FFT tag is specified for the same document
			(e.g. for adding more than one format at a time), if $t (docfile
			type), $m (new desired docfile name), $r (restriction), $v (version),
			$x (url/path for an icon), are specified, they should be identically
			specified for each single entry of FFT. E.g. if you want to specify
			an icon for a document with two formats (say .pdf and .doc), you'll
			write two FFT tags, both containing the same $x subfield.</p>

			<p>The bibupload process, when it encounters FFT tags, will
			automatically populate fulltext storage space
			(<code>/opt/invenio/var/data/files</code>) and metadata record
			associated tables (<code>bibrec_bibdoc</code>, <code>bibdoc</code>) as
			appropriate. It will also enrich the 856 tags (URL tags) of the MARC
			metadata of the record in question with references to the latest
			versions of each file.
			</p>

			<p>Note that for $a and $x subfields filesystem paths must be absolute
			(e.g. <code>/tmp/icon.gif</code> is valid,
			while <code>Destkop/icon.gif</code> is not) and they must be readable
			by the user/group of the bibupload process that will handle the FFT.
			</p>

			<p>The bibupload process supports the usual modes correct, append,
			replace, insert with a semantic that is somewhat similar to the
			semantic of the metadata upload:

			<blockquote>
			<table border="1">
			<thead>
			<tr>
			<th></th><th>Metadata</th> <th>Fulltext</th>
			</tr>
			</thead>
			<tbody>
			<tr>
			<td>objects being uploaded</td><td> MARC field instances characterized by tags (010-999) </td> <td> fulltext files characterized by unique file names (FFT $n)</td>
			</tr>
			<tr>
			<td> insert </td><td> insert new record; must not exist </td><td> insert new files; must not exist </td>
			</tr>
			<tr>
			<td> append </td><td> append new tag instances for the given tag XXX, regardless of existing tag instances</td><td> append new files, if filename (i.e. new format) not already present </td>
			</tr>
			<tr>
			<td> correct </td><td> correct tag instances for the given tag XXX; delete existing ones and replace with given ones </td><td> correct files with the given filename; add new revision or delete file; if the docname does not exist the file is added</td>
			</tr>
			<tr>
			<td> replace </td><td> replace all tags, whatever XXX are</td><td> replace all files, whatever filenames are </td>
			</tr>
			<tr>
			<td> delete </td><td> delete all existing tag instances</td><td> not supported </td>
			</tr>
			</tbody>
			</table>
			</blockquote>
			</p>

			<p>Note that you can mix regular MARC tags with special FFT tags in
			the incoming XML input file. Both record metadata and record files
			will be updated as a result. Hence beware with some input modes, such
			as replace mode, if you would like to touch only files.</p>

			<p>Note that in append and insert mode the <code>$m</code> is ignored.

			<p>In order to rename a document just use the the correct mode specifing in the
			$n subfield the original docname that should be renamed and in $m the new name.
			</p>

			<p>Special values can be assigned to the $t subfield.</p>

			<table border="1">
			<thead><tr><th>Value</th><th>Meaning</th></tr></thead>
			<tbody>
			<tr><td><tt>PURGE</tt></td><td>In order to purge previous file revisions (i.e. in order to keep only the latest file version), please use the correct mode with $n docname and $t PURGE as the special keyword.</td></tr>
			<tr><td><tt>DELETE</tt></td><td>In order to delete all existing versions of a file, making it effectively hidden, please use the correct mode with $n docname
			and $t DELETE as the special keyword.</td></tr>
			<tr><td>EXPUNGE</td><td>In order to expunge (i.e. remove completely, also from the
			filesystem) all existing versions of a file, making it effectively disappear, please use the correct mode with $n docname and $t EXPUNGE as the special keyword.
			</td><tr>
			<tr><td><tt>FIX-MARC</tt></td><td>In order to synchronize MARC to the bibrec/bibdoc structure (e.g. after an update or a tweak in the database), please use the correct mode with $n docname and $t FIX-MARC as the special keyword.</td></tr>
			<tr><td><tt>FIX-ALL</tt></td><td>In order to fix a record (i.e. put all its linked documents in a coherent state) and synchronize the MARC to the table, please use the correct mode with $n docname and $t FIX-ALL as the special keyword.</td></tr>
			<tr><td><tt>REVERT</tt></td><td>In order to revert to a previous file revision (i.e. to create a new revision with the same content as some previous revision had), please use the correct mode with $n docname, $t REVERT as the special
			keyword and $v the number corresponding to the desired version.</td></tr>
			<tr><td><tt>DELETE-FILE</tt></td><td>In order to delete a particular file added by mistake, please use the correct mode with $n docname, $t DELETE-FILE, specifing $v version and $f format. Note that this operation is not reversible. Note that
			if you don't spcify a version, the last version will be used.</td></tr>
			</tbody></table>

			<p>In order to preserve previous comments and descriptions when
			correcting, please use the KEEP-OLD-VALUE special keyword with the
			desired $d and $z subfield.
			</p>

			<p>The $r subfield can contain a string that can be use to restrict
			the given document. The same value must be specified for all the
			format of a given document. By default the keyword will be used as the status
			parameter for the "viewrestrdoc" action, which can be used to give
			access right/restriction to desired user. e.g. if you set the keyword
			"thesis", you can the connect the "thesisviewer" to the action
			"viewrestrdoc" with parameter "status" set to "thesis". Then all the
			user which are linked with the "thesisviewer" role will be able to
			download the document. Instead any other user <em>which are not considered
			as authors</em> for the given record will not be allowed.
			Note, if you use the keyword "KEEP-OLD-VALUE" the previous
			restrictions if applicable will be kept.
			</p>

			<p>More advanced document-level restriction is indeed possible. If the value
			contains infact:
			<ul>
			<li><tt><strong>email: </strong>john.doe@example.org</tt>: then only the user
			having <tt>john.doe@example.org</tt> as email address will be authorized to
			access the given document.</li>
			<li><tt><strong>group: </strong>example</tt>: then only users belonging to
			the local/external group <tt>example</tt> will be authorized to
			access the given document.</li>
			<li><tt><strong>role: </strong>example</tt>: then only the users
			belonging to the WebAccess role <tt>example</tt> will be authorized to
			access the given document.</li>
			<li><tt><strong>firerole: </strong>allow .../deny...</tt>: then only the users
			implicitly matched by the given
			<a href="/help/admin/webaccess-admin-guide#6">firewall like role definition</a>
			will be authorized to access the given document.</li>
			<li><tt><strong>status: </strong>example</tt>: then only the users
			belonging to roles having an authorization for the WebAccess action
			<tt>viewrestrdoc</tt> with parameter <tt>status</tt> set to <tt>example</tt>
			will be authorized (that is exactly like setting $r to <tt>example</tt>).</li>
			</ul>
			Note, that authors (as defined in the record MARC) and superadmin are always
			authorized to access a document, no matter what is the given value of the status.
			</p>

			<p>Some special flags might be set via FFT and associated with the current
			document by using the $o subfield. This feature is experimental. Currently only
			two flags are actively considered:
			<ul>
			<li><strong>HIDDEN</strong>: used to specify that the file that is
			currently added (via revision or append) must be hidden, i.e. must
			not be visible to the world but only known by the system (e.g. to
			allow for fulltext indexing). This flag is permanently associated
			with the specific revision and format of the file being added.</li>
			<li><strong>PERFORM_HIDE_PREVIOUS</strong>: used to specify that, although
			the current file should be visible (unless the HIDDEN flag is also
			specified), any other previous revision of the document should receive
			the HIDDEN flag, and should thus be hidden to the world.</li>
			</ul>
			</p>

			<p>Note that each time bibupload is called on a record, the 8564 tags
			pointing to locally stored files are recreated on the basis of the
			full-text files connected to the record. Thus, if you whish to update
			some 8564 tag pointing to a locally managed file, the only way to
			perform this is through the FFT tag, not by editing 8564 directly.<p>

			<p>The subfield $s of FFT can be used to set time stamp of the
			uploaded file to a given value, e.g. 2007-05-04 03:02:01. This is
			useful when uploading old files. When $s is not present, the current
			time will be used.

			<a name="3.7"></a><h3>3.7 Obtaining feedbacks</h3>
			<p>Sometimes, to implement a particular workflow or policy in a digital
			repository, it might be nice to receive an automatic machine friendly
			feedback that aknowledges the outcome of a bibupload execution. To this aim
			the <tt>--callback-url</tt> command line parameter can be used. This parameter
			expects a <em>URL</em> to be specified to which a
			<strong><a href="http://json.org/" alt="JSON" target="_blank">JSON</a>-serialized</strong>
			response will <strong>POSTed</strong>.</p>

			<p>Say, you have an external service reachable via the URL
			<tt>http://www.example.org/accept_feedback</tt>. If the argument:
			<pre>
			--callback-url http://www.example.org/accept_feedback
			</pre>
			is added to the usual bibupload call, at the end of the execution of the
			corresponding bibupload task, an HTTP POST request will be performed,
			if possible to the given URL, reporting the outcome of the bibupload execution
			as a JSON-serialized response with the following structure:
			<ul>
			<li>a JSON <strong>object</strong> with the following <em>string</em> -- <em>value</em> mapping:
			<ul>
			<li>string: <strong>results</strong> -- value: a JSON <strong>array</strong> whose values
			are all JSON <strong>objects</strong> with the following <em>string</em> -- <em>value</em> mapping:
			<ul>
			<li><strong>recid</strong>: an integer number, representing the described record
			identifier (<tt>-1</tt> if no record identifier can be retrieved)</li>
			<li><strong>success</strong>: either <tt>true</tt> or <tt>false</tt> depending
			on the success of the elaboration of the corresponding MARCXML</li>
			<li><strong>error_message</strong>: a <strong>string</strong> containing a human-friendly
			description of the error that caused the MARCXML elaboration to fail (in case <tt>success</tt>
			was having <tt>false</tt> value)</li>
			<li><strong>marcxml</strong>: in case of success, this contains the final MARCXML
			representation of the record</li>
			<li><strong>url</strong>: in case of success, this contains the final URL where
			the detailde representation of the record can be fetched (i.e. its canonical URL)
			</li></ul>
			</li></ul>
			</li></ul>
			</p>

			<p>For example, a possible JSON response posted to a specified URL can look like:
			<pre>
			{
			"results": [
			{
			"recid": -1,
			"error_message": "ERROR: can not retrieve the record identifier",
			"success": false
			},
			{
			"recid": 1000,
			"error_message": "",
			"success": true,
			"marcxml": "<record><controlfield tag=\"001\">1000</controlfield>...</record>",
			"url": "http://www.example.org/record/1000"
			},
			...
			]
			}
			</pre>
			<p>Note that, currently, in case the specified URL can not be reached at the time of the POST request,
			the whole bibupload task will fail.</p>

			<p>If you use the same callback URL to receive the feedback from more than one bibupload request
			you might want to be able to correctly identify each bibupload call with the corresponding
			feedback. For this reason you can pass to the bibupload call an additional argument:
			<pre>
			--nonce VALUE
			</pre>
			where value can be any string you wish. Such string will be then added to the JSON structure, as in
			(supposing you specified <tt>--nonce 1234</tt>):
			<pre>
			{
			"nonce": "1234",
			"results": [
			{
			"recid": -1,
			"error_message": "ERROR: can not retrieve the record identifier",
			"success": false
			},
			{
			"recid": 1000,
			"error_message": "",
			"success": true,
			"marcxml": "<record><controlfield tag=\"001\">1000</controlfield>...</record>",
			"url": "http://www.example.org/record/1000"
			},
			...
			]
			}
			</pre>
			</p>

			<a name="3.8"></a><h3>3.8 Assigning additional informations to documents and other entities</h3>
			<p>Some bits of meta-data should not be viewed by Invenio users directly and stored in the MARC format.
			This includes all types of non-standard data related to records and documents, for example flags realted to documetns (sepcified inside of a FFT tage) or bits of semantic information related to entities managed in Invenio.
			This type of data is usually machine generated and should be used by modules of Invenio internally.
			</p>

			<p>
			Invenio provides a general mechanism allowing to store objects related to different entities of Invenio.
			This mechanism is called MoreInfo and resembles well known more-info solutions.
			Every entity (document, version of a document, format of a particular version of a document,
			relation between documents) can be assigned a dictionary of arbitrary values.
			The dictionary is divided into namespaces, which allow to separate data from different modules and serving different purposes.
			</p>

			<p> BibUpload, the only gateway to uploading data into the Invenio database, allows to populate MoreInfo structures.
			MoreInfo related to a given entity can be modified by providing a Pickle-serialised byte64 encoded Python object having following structure:
			</p>
			<pre>
			{
			"namespace": {
			"key": "value",
			"key2": "value2"
			}
			}
			</pre>

			<p>For example the above dictionary should be uploaded as</p>
			<pre>KGRwMQpTJ25hbWVzcGFjZScKcDIKKGRwMwpTJ2tleTInCnA0ClMndmFsdWUyJwpwNQpzUydrZXknCnA2ClMndmFsdWUnCnA3CnNzLg==</pre>
			<p>Which is a base-64 encoded representation of the string</p>
			<pre>(dp0\nS'namespace'\np1\n(dp2\nS'key2'\np3\nS'value2'\np4\nsS'key'\np5\nS'value'\np6\nss.</pre>

			<p> Removing of data keys from a dictionary can happen by providing None value as a value. Empty namespaces are considered non-existent.
			</p>

			<p>The string representation of modifications to the MoreInfo dictionary can be provided in several places, depending, to which object it should be attached.
			The most general upload method, the BDM tag has following semantic:</p>

			<pre>
			BDM $r ... Identifier of a relation between documents (optional)
			$i ... Identifier of a BibDoc (optional)
			$v ... Version of a BibDoc (optional)
			$n ... Name of a BibDoc (within a current record) (optional)
			$f ... Format of a BibDoc (optional)
			$m ... Serialised update to the MoreInfo dictionary
			</pre>
			<p>All (except $m) subfields are optional and allow to identify an entity to which MoreInfo should refer.</p>
			<p>Besides the BDM tag, MoreInfo can be transfered using special subfields of FFT and BDR tags.
			The first one allows to modify MoreInfo of a newly uploaded document, the second of a relation.
			The additional subfields have following semantic:</p>
			<pre>
			FFT $w ... MoreInfo modification of the document
			$p ... MoreInfo modification of a current version of the document
			$s ... MoreInfo modification of a current version and format of the document
			$u ... MoreInfo modification of a format (of any version) of the document
			BDR $m ... MoreInfo modification of a relation between BibDocs
			</pre>

			<a name="3.8.1"></a><h4>3.8.1 Uploading relations between documents</h4>
			<p>One of additional pieces of non-MARC data which can be uploaded to Invenio are relations between documents.
			Similarly to MoreInfos, relations are intended to be used by Invenio modules.
			The semantics of BDR field allowing to upload relations looks as follows</p>
			<pre>
			BDR $r ... Identifier of the relation (optional, can be provided if modifying a known relation)

			$i ... Identifier of the first document
			$n ... Name of the first document (within the current record) (optional)
			$v ... Version of the first document (optional)
			$f ... Format of the first document (optional)

			$j ... Identifier of the second document
			$o ... Name of the second document (within the current record) (optional)
			$w ... Version of the second document (optional)
			$g ... Format of the second document (optional)

			$t ... Type of the relation
			$m ... Modification of the MoreInfo of the relation
			$d ... Special field. if value=DELETE, relation is removed
			</pre>
			<p>
			Behavious of BDR tag in different upload modes:
			</p>
			<table border="1">
			<tr><td>insert, append</td><td>Inserts new relation if necessary. Appends fields to the MoreInfo structure</td></tr>
			<tr><td>correct, replace</td><td>Creates new relation if necessary, replaces the entire content of MoreInfo field.</td></tr>
			</table>
			<a name="3.8.2"></a><h4>3.8.2 Using temporary identifiers</h4>
			<p>In many cases, users want to upload large collections of documents using single BibUpload tasks.
			The infrastructure described in the rest of this manual allows easy upload of multiple documents,
			but lacks facilities for relating them to each other.
			A sample use-case which can not be satisfied by simple usage of FFT tags is uploading a document
			and relating it to another which is either already in the database or is being uploaded within
			the same BibUpload task.
			BibUpload provides a mechanism of temportaty identifiers which allows to serve scenarios similar to the aforementioned.
			</p>

			<p>Temporary identifier is a string (unique in the context of a single MARC XML document), which replaces document number or a version number.
			In the context of BibDoc manipulations (FFT, BDR and BDM tags), temporary identifeirs can appear everywhere where version or numerical id are required.
			If a temporary identifier appears in a context of document already having an ID assigned, it will be interpreted as this already existent number.
			If newly created document is assigned a temporary identifier, the newly generated numerical ID is assigned to the temporary id.
			In order to be recognised as a temporary identifier, a string has to begin with a prefix <strong>TMP:</strong>.
			The mechanism of temporary identifiers can not be used in the con text of records, but only with BibDocs.
			</p>

			<p>A BibUpload input using temporary identifiers can look like:</p>

			<pre>

			<collection xmlns="http://www.loc.gov/MARC21/slim">
			<record>
			<datafield tag="100" ind1=" " ind2=" ">
			<subfield code="a">This is a record of the publication</subfield>
			</datafield>
			<datafield tag="FFT" ind1=" " ind2=" ">
			<subfield code="a">http://somedomain.com/document.pdf</subfield>
			<subfield code="t">Main</subfield>
			<subfield code="n">docname</subfield>
			<subfield code="i">TMP:id_identifier1</subfield>
			<subfield code="v">TMP:ver_identifier1</subfield>
			</datafield>
			</record>

			<record>
			<datafield tag="100" ind1=" " ind2=" ">
			<subfield code="a">This is a record of a dataset extracted from the publication</subfield>
			</datafield>

			<datafield tag="FFT" ind1=" " ind2=" ">
			<subfield code="a">http://sample.com/dataset.data</subfield>
			<subfield code="t">Main</subfield>
			<subfield code="n">docname2</subfielxd>
			<subfield code="i">TMP:id_identifier2</subfield>
			<subfield code="v">TMP:ver_identifier2</subfield>
			</datafield>

			<datafield tag="BDR" ind1=" " ind2=" ">
			<subfield code="i">TMP:id_identifier1</subfield>
			<subfield code="v">TMP:ver_identifier1</subfield>
			<subfield code="j">TMP:id_identifier2</subfield>
			<subfield code="w">TMP:ver_identifier2</subfield>

			<subfield code="t">is_extracted_from</subfield>
			</datafield>
			</record>

			</collection>
			</pre>

			<a name="4"></a><h2>4. Batch Uploader</h2>
			<a name="4.1"></a><h3>4.1 Web interface - Cataloguers</h3>
			<p>The batchuploader web interface can be used either to upload metadata files or documents. Opposed to daemon mode, actions will be executed only once.</p>

			<p>The available upload history displays metadata and document uploads using the web interface, not daemon mode.</p>

			<a name="4.2"></a><h3>4.2 Web interface - Robots</h3>
			<p>If it is needed to use the batch upload function from within command line, this can be achieved with a curl call, like:
			<blockquote>
			<pre>
			$ curl -F 'file=@localfile.xml' -F 'mode=-i' http://cds.cern.ch/batchuploader/robotupload [-F 'callback_url=http://...'] -A invenio_webupload
			<pre>
			</blockquote></p>

			<p>This service provides (client, file) checking to assure the records are put into a collection the client has rights to.<br />
			To configure this permissions, check <tt>CFG_BATCHUPLOADER_WEB_ROBOT_RIGHTS</tt> variable in the configuration file.<br />
			The allowed user agents can also be defined using the <tt>CFG_BATCHUPLOADER_WEB_ROBOT_AGENT</tt> variable.</p>
			<p>Note that you can receive machine-friendly feedbacks from the corresponding
			bibupload task that is launched by a given batchuploader request, by adding
			the optional POST field <tt>callback_url</tt> with the same semantic of the <tt>--callback-url</tt>
			command line parameter of bibupload (see the previous paragraph <a href="#3.7">Obtaining feedbacks</a>).</p>

			<p>A second more <em>RESTful</em> interface is also available: it will suffice to append to the URL the specific mode (among "<em>insert</em>",
			"<em>append</em>", "<em>correct</em>", "<em>delete</em>", "<em>replace</em>"), as in:
			<pre>
			http://cds.cern.ch/batchuploader/robotupload/insert
			</pre>
			</p>
			<p>The <em>callback_url</em> argument can be put in query part of the URL as in:
			<pre>
			http://cds.cern.ch/batchuploader/robotupload/insert?callback_url=http://myhandler
			</pre>
			<p>

			<p>In case the HTTP server that is going to receive the feedback at <em>callback_url</em> expect the request to be encoded in <em>application/x-www-form-urlencoded</em> rather than <em>application/json</em> (e.g. if the server is implemented directly in Oracle),
			you can further specify the <em>special_treatment<em> argument and set it to <em>oracle</em>. The feedback will then be further encoded
			into an <em>application/x-www-form-urlencoded</em> request, with a single form key called <em>results</em>, which will contain
			the final JSON data.</p>

			<p>The MARCXML content should then be specified as the body of the request. With <em>curl</em> this can be implemented as in:
			<pre>
			$ curl -T localfile.xml http://cds.cern.ch/batchuploader/robotupload/insert?callback_url=http://... -A invenio_webupload -H "Content-Type: application/marcxml+xml"
			</pre>

			<p>The <em>nonce</em> argument that can be passed to BibUpload as described in the previous paragraph can also be specified with both robotupload interfaces. E.g.:
			<pre>
			$ curl -F 'file=@localfile.xml' -F 'nonce=1234' -F 'mode=-i' http://cds.cern.ch/batchuploader/robotupload -F 'callback_url=http://...' -A invenio_webupload
			</pre>
			and
			<pre>
			$ curl -T localfile.xml http://cds.cern.ch/batchuploader/robotupload/insert?nonce=1234&callback_url=http://... -A invenio_webupload -H "Content-Type: application/marcxml+xml"
			</pre>
			</p>

			<a name="4.3"></a><h3>4.2 Daemon mode</h3>

			<p>The batchuploader daemon mode is intended to be a bibsched task for document or metadata upload. The parent directory where the daemon will look for folders <tt>metadata</tt> and <tt>documents</tt> must be specified in the invenio configuration file.</p>
			<p>An example of how directories should be arranged, considering that invenio was installed in folder <tt>/opt/invenio</tt> would be:
			<pre>
			/opt/invenio/var/batchupload
			/opt/invenio/var/batchupload/documents
			/opt/invenio/var/batchupload/documents/append
			/opt/invenio/var/batchupload/documents/revise
			/opt/invenio/var/batchupload/metadata
			/opt/invenio/var/batchupload/metadata/append
			/opt/invenio/var/batchupload/metadata/correct
			/opt/invenio/var/batchupload/metadata/insert
			/opt/invenio/var/batchupload/metadata/replace
			</pre>
			</p>
			<p>When running the batchuploader daemon there are two possible execution modes:

			<pre>
			-m, --metadata Look for metadata files in folders insert, append, correct and replace.
			All files are uploaded and then moved to the corresponding DONE folder.
			-d, --documents Look for documents in folders append and revise. Uploaded files are then
			moved to DONE folders if possible.
			</pre>
			By default, metadata mode is used.</p>

			<p>An example of invocation would be:
			<blockquote>
			<pre>
			$ batchuploader --documents
			<pre>
			</blockquote></p>

			It is possible to program batch uploader to run periodically. Read the <a href='howto-run'>Howto-run guide</a> to see how.

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