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README.html
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<!DOCTYPE html><html><head><meta charset="utf-8"><style>body {
width: 45em;
border: 1px solid #ddd;
outline: 1300px solid #fff;
margin: 16px auto;
}
body .markdown-body
{
padding: 30px;
}
@font-face {
font-family: octicons-anchor;
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.markdown-body {
-ms-text-size-adjust: 100%;
-webkit-text-size-adjust: 100%;
color: #333;
overflow: hidden;
font-family: "Helvetica Neue", Helvetica, "Segoe UI", Arial, freesans, sans-serif;
font-size: 16px;
line-height: 1.6;
word-wrap: break-word;
}
.markdown-body a {
background: transparent;
}
.markdown-body a:active,
.markdown-body a:hover {
outline: 0;
}
.markdown-body strong {
font-weight: bold;
}
.markdown-body h1 {
font-size: 2em;
margin: 0.67em 0;
}
.markdown-body img {
border: 0;
}
.markdown-body hr {
-moz-box-sizing: content-box;
box-sizing: content-box;
height: 0;
}
.markdown-body pre {
overflow: auto;
}
.markdown-body code,
.markdown-body kbd,
.markdown-body pre {
font-family: monospace, monospace;
font-size: 1em;
}
.markdown-body input {
color: inherit;
font: inherit;
margin: 0;
}
.markdown-body html input[disabled] {
cursor: default;
}
.markdown-body input {
line-height: normal;
}
.markdown-body input[type="checkbox"] {
-moz-box-sizing: border-box;
box-sizing: border-box;
padding: 0;
}
.markdown-body table {
border-collapse: collapse;
border-spacing: 0;
}
.markdown-body td,
.markdown-body th {
padding: 0;
}
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box-sizing: border-box;
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.markdown-body input {
font: 13px/1.4 Helvetica, arial, freesans, clean, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol";
}
.markdown-body a {
color: #4183c4;
text-decoration: none;
}
.markdown-body a:hover,
.markdown-body a:focus,
.markdown-body a:active {
text-decoration: underline;
}
.markdown-body hr {
height: 0;
margin: 15px 0;
overflow: hidden;
background: transparent;
border: 0;
border-bottom: 1px solid #ddd;
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display: table;
content: "";
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display: table;
clear: both;
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margin-bottom: 15px;
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.markdown-body ol {
padding: 0;
margin-top: 0;
margin-bottom: 0;
}
.markdown-body ol ol,
.markdown-body ul ol {
list-style-type: lower-roman;
}
.markdown-body ul ul ol,
.markdown-body ul ol ol,
.markdown-body ol ul ol,
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margin-left: 0;
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.markdown-body code {
font: 12px Consolas, "Liberation Mono", Menlo, Courier, monospace;
}
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margin-top: 0;
margin-bottom: 0;
font: 12px Consolas, "Liberation Mono", Menlo, Courier, monospace;
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font: normal normal 16px octicons-anchor;
line-height: 1;
display: inline-block;
text-decoration: none;
-webkit-font-smoothing: antialiased;
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-webkit-user-select: none;
-moz-user-select: none;
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user-select: none;
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.markdown-body .octicon-link:before {
content: '\f05c';
}
.markdown-body>*:first-child {
margin-top: 0 !important;
}
.markdown-body>*:last-child {
margin-bottom: 0 !important;
}
.markdown-body .anchor {
position: absolute;
top: 0;
bottom: 0;
left: 0;
display: block;
padding-right: 6px;
padding-left: 30px;
margin-left: -30px;
}
.markdown-body .anchor:focus {
outline: none;
}
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
position: relative;
margin-top: 1em;
margin-bottom: 16px;
font-weight: bold;
line-height: 1.4;
}
.markdown-body h1 .octicon-link,
.markdown-body h2 .octicon-link,
.markdown-body h3 .octicon-link,
.markdown-body h4 .octicon-link,
.markdown-body h5 .octicon-link,
.markdown-body h6 .octicon-link {
display: none;
color: #000;
vertical-align: middle;
}
.markdown-body h1:hover .anchor,
.markdown-body h2:hover .anchor,
.markdown-body h3:hover .anchor,
.markdown-body h4:hover .anchor,
.markdown-body h5:hover .anchor,
.markdown-body h6:hover .anchor {
padding-left: 8px;
margin-left: -30px;
line-height: 1;
text-decoration: none;
}
.markdown-body h1:hover .anchor .octicon-link,
.markdown-body h2:hover .anchor .octicon-link,
.markdown-body h3:hover .anchor .octicon-link,
.markdown-body h4:hover .anchor .octicon-link,
.markdown-body h5:hover .anchor .octicon-link,
.markdown-body h6:hover .anchor .octicon-link {
display: inline-block;
}
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padding-bottom: 0.3em;
font-size: 2.25em;
line-height: 1.2;
border-bottom: 1px solid #eee;
}
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padding-bottom: 0.3em;
font-size: 1.75em;
line-height: 1.225;
border-bottom: 1px solid #eee;
}
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font-size: 1.5em;
line-height: 1.43;
}
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font-size: 1.25em;
}
.markdown-body h5 {
font-size: 1em;
}
.markdown-body h6 {
font-size: 1em;
color: #777;
}
.markdown-body p,
.markdown-body blockquote,
.markdown-body ul,
.markdown-body ol,
.markdown-body dl,
.markdown-body table,
.markdown-body pre {
margin-top: 0;
margin-bottom: 16px;
}
.markdown-body hr {
height: 4px;
padding: 0;
margin: 16px 0;
background-color: #e7e7e7;
border: 0 none;
}
.markdown-body ul,
.markdown-body ol {
padding-left: 2em;
}
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.markdown-body ul ol,
.markdown-body ol ol,
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margin-top: 0;
margin-bottom: 0;
}
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margin-top: 16px;
}
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padding: 0;
}
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padding: 0;
margin-top: 16px;
font-size: 1em;
font-style: italic;
font-weight: bold;
}
.markdown-body dl dd {
padding: 0 16px;
margin-bottom: 16px;
}
.markdown-body blockquote {
padding: 0 15px;
color: #777;
border-left: 4px solid #ddd;
}
.markdown-body blockquote>:first-child {
margin-top: 0;
}
.markdown-body blockquote>:last-child {
margin-bottom: 0;
}
.markdown-body table {
display: block;
width: 100%;
overflow: auto;
word-break: normal;
word-break: keep-all;
}
.markdown-body table th {
font-weight: bold;
}
.markdown-body table th,
.markdown-body table td {
padding: 6px 13px;
border: 1px solid #ddd;
}
.markdown-body table tr {
background-color: #fff;
border-top: 1px solid #ccc;
}
.markdown-body table tr:nth-child(2n) {
background-color: #f8f8f8;
}
.markdown-body img {
max-width: 100%;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
.markdown-body code {
padding: 0;
padding-top: 0.2em;
padding-bottom: 0.2em;
margin: 0;
font-size: 85%;
background-color: rgba(0,0,0,0.04);
border-radius: 3px;
}
.markdown-body code:before,
.markdown-body code:after {
letter-spacing: -0.2em;
content: "\00a0";
}
.markdown-body pre>code {
padding: 0;
margin: 0;
font-size: 100%;
word-break: normal;
white-space: pre;
background: transparent;
border: 0;
}
.markdown-body .highlight {
margin-bottom: 16px;
}
.markdown-body .highlight pre,
.markdown-body pre {
padding: 16px;
overflow: auto;
font-size: 85%;
line-height: 1.45;
background-color: #f7f7f7;
border-radius: 3px;
}
.markdown-body .highlight pre {
margin-bottom: 0;
word-break: normal;
}
.markdown-body pre {
word-wrap: normal;
}
.markdown-body pre code {
display: inline;
max-width: initial;
padding: 0;
margin: 0;
overflow: initial;
line-height: inherit;
word-wrap: normal;
background-color: transparent;
border: 0;
}
.markdown-body pre code:before,
.markdown-body pre code:after {
content: normal;
}
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background: #fff;
}
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color: #333;
font-style: normal;
font-weight: normal;
}
.markdown-body .highlight .mf,
.markdown-body .highlight .mh,
.markdown-body .highlight .mi,
.markdown-body .highlight .mo,
.markdown-body .highlight .il,
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color: #945277;
}
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}</style><title>README</title></head><body><article class="markdown-body"><h1>
<a id="user-content-dplah-hydra-head-readme" class="anchor" href="#dplah-hydra-head-readme" aria-hidden="true"><span class="octicon octicon-link"></span></a>DPLAH Hydra Head README</h1>
<p>DPLAH is a proof-of-concept aggregator for OAI-PMH metadata with additional features specific to the DPLA's discovery interface needs.</p>
<h2>
<a id="user-content-system-dependencies" class="anchor" href="#system-dependencies" aria-hidden="true"><span class="octicon octicon-link"></span></a>System dependencies</h2>
<ul>
<li>
<a href="https://github.com/projecthydra">Hydra</a> and therefore everything Hydra needs</li>
<li>
<a href="http://redis.io/">Redis</a> key-value store</li>
<li>
<a href="http://xmlsoft.org/XSLT/xsltproc.html">xsltproc</a> for processing XSLT at the command line</li>
<li>
<a href="http://www.tcl.tk/">tcl</a> for supporting make test in Redis</li>
<li>
<a href="http://httpd.apache.org/">Apache</a> for serving harvesting logs in the browser, and for later production deployment</li>
</ul>
<h2>
<a id="user-content-configuration" class="anchor" href="#configuration" aria-hidden="true"><span class="octicon octicon-link"></span></a>Configuration</h2>
<p>To use this head, create a file under "config/dpla.yml" and add the following:</p>
<div class="highlight highlight-yaml"><pre><span class="pl-s"><span class="pl-ent">harvest_data_directory:</span> <span class="pl-s"><span class="pl-pds">"</span>/path/to/metadata/from/contributors<span class="pl-pds">"</span></span></span>
<span class="pl-s"><span class="pl-ent">converted_foxml_directory:</span> <span class="pl-s"><span class="pl-pds">"</span>/path/to/foxml/converted/metadata<span class="pl-pds">"</span></span></span>
<span class="pl-s"><span class="pl-ent">pid_prefix:</span> <span class="pl-s"><span class="pl-pds">"</span>changeme<span class="pl-pds">"</span></span></span>
<span class="pl-s"><span class="pl-ent">partner:</span> <span class="pl-s"><span class="pl-pds">"</span>Name of hub<span class="pl-pds">"</span></span></span>
<span class="pl-s"><span class="pl-ent">human_log_path:</span> <span class="pl-s"><span class="pl-pds">'</span>/abs/path/to/log/files<span class="pl-pds">'</span></span></span>
<span class="pl-s"><span class="pl-ent">human_log_url:</span> <span class="pl-s"><span class="pl-pds">'</span>http://fullurltologfiles<span class="pl-pds">'</span></span></span>
</pre></div>
<p>Substitute your own values as follows for the YML fields:</p>
<ul>
<li>
<code>harvest_data_directory</code> refers to the value of the absolute location on your filesystem where you want the application to store harvested, unprocessed metadata from providers</li>
<li>
<code>converted_foxml_directory</code> refers to the value of the absolute location on your filesystem where you want the application to store converted FOXML files generated from the harvested metadata, for ingestion into Fedora</li>
<li>
<code>pid_prefix</code> refers to the namespace for your Fedora objects</li>
<li>
<code>partner</code> refers to the name of the DPLA Partner hub</li>
<li>
<code>human_log_path</code> refers to the absolute path on the file system where the OAI management logs should go</li>
<li>
<code>human_log_url</code> refers to the full clickable URL path to the directory on your web server where OAI management logs live</li>
</ul>
<h2>
<a id="user-content-start-up-locally" class="anchor" href="#start-up-locally" aria-hidden="true"><span class="octicon octicon-link"></span></a>Start up locally</h2>
<p>To start up locally, be sure that your pid_prefix as defined in <code>config/dpla.yml</code> matches the pid prefix in your <code>fedora.fcfg</code> file under <code>fedora_conf/</code>.</p>
<p>Also be sure you have jetty installed and configured, and all tables are migrated (can use the following commands if needed):</p>
<pre><code>rake db:migrate
rails g hydra:jetty
rake jetty:config
rake jetty:start
</code></pre>
<h2>
<a id="user-content-redis-and-resque" class="anchor" href="#redis-and-resque" aria-hidden="true"><span class="octicon octicon-link"></span></a>Redis and Resque</h2>
<p>Harvest and delete jobs are backgrounded once assigned through the dashboard, with the use of Redis and Resque. In order to do this, Redis must be installed and configured.</p>
<ul>
<li><a href="https://github.com/projecthydra-labs/hydradam/wiki/Installation:-Redis">Tutorial on installing/configuring Redis on Ubuntu and CentOS from projecthydra-labs hydradam</a></li>
<li>This Hydra head uses the resque-pool gem to make configuration of queues easier. See the <code>config/resque-pool.yml</code> file for the default configuration. It is recommended that users configure two queues for instances of this application, one for Harvest jobs and one for DumpReindex jobs. These are set and allocate two workers per job by default. Adjust the number of workers as needed for your application.</li>
<li>To initialize a resque pool's workers, issue the following command at the terminal:</li>
</ul>
<pre><code>env TERM_CHILD=1 VVERBOSE=1 COUNT='NUM' QUEUE=NAME_OF_QUEUE bundle exec rake resque:workers
</code></pre>
<p><strong>NOTE:</strong> </p>
<ul>
<li>
<code>NUM</code> refers to the number of workers you want to activate in this pool</li>
<li>
<code>NAME_OF_QUEUE</code> refers to the name of the queue you are initializing (ie, harvest)</li>
</ul>
<h3>
<a id="user-content-deployment-instructions" class="anchor" href="#deployment-instructions" aria-hidden="true"><span class="octicon octicon-link"></span></a>Deployment instructions</h3>
<ul>
<li>Start and verify Redis.</li>
<li>Clone the repository locally.</li>
<li>Run Hydra generators/set up jetty/tomcat, etc.</li>
<li>Start Fedora/Solr services.</li>
<li>Initiate the Resque queues you'll be using for your backgrounded harvest and delete tasks -- these default to "harvest" and "delete."</li>
<li>Start the Rails server.</li>
</ul>
<h3>
<a id="user-content-managing-oai-seeds" class="anchor" href="#managing-oai-seeds" aria-hidden="true"><span class="octicon octicon-link"></span></a>Managing OAI Seeds</h3>
<ul>
<li>To begin harvesting, go to the relative path "/providers" (the "Manage OAI Seeds" dashboard -- you will need to create a devise user account first if using the default setup) and input data for an OAI-PMH harvestable repository (see "OAI Resources" below for tips on getting started)</li>
<li>Save the provider.</li>
<li>From the dashboard, click the "Harvest from OAI Source" button in the OAI seeds table. You should see the ajax spinner and a prompt to check the harvesting logs. Click this link to go to the directory listing page of OAI management logs. These are textual logs created every time an OAI seed action is performed from within the dashboard (that is, harvest, delete, etc). Harvesting/ingesting and deleting from the index can take a while, especially for seeds with many records, so you can monitor the progress of an ingest by refreshing the textual log periodically.<br>
</li>
<li>Go to your Hydra head in the browser to see if the metadata was harvested and has been made discoverable. </li>
</ul>
<h4>
<a id="user-content-more-actions-for-oai-seeds" class="anchor" href="#more-actions-for-oai-seeds" aria-hidden="true"><span class="octicon octicon-link"></span></a>More Actions for OAI Seeds</h4>
<ul>
<li>From the dashboard, you may delete all records from a collection, from an institution, or delete all records in the aggregator. You can also re-harvest records from seeds (not deleting before doing so will result in the older ones being overwritten), and harvest everything available from all seeds via the actions underneath the OAI seeds table. The "harvest all" and "delete all" tasks will take a while if you have many seeds, and many records in the index respectively.</li>
</ul>
<h3>
<a id="user-content-rake-tasks" class="anchor" href="#rake-tasks" aria-hidden="true"><span class="octicon octicon-link"></span></a>Rake tasks</h3>
<ul>
<li>To harvest just the raw OAI from a specific OAI seed in the application, run the following in the terminal:</li>
</ul>
<pre><code>rake oai:harvest[NUM]
</code></pre>
<p><strong>NOTE:</strong> </p>
<ul>
<li>
<code>NUM</code> = the ID of the provider/OAI seed that you are attempting to harvest </li>
</ul>
<p>This will harvest the raw OAI available from the seed, save as XML (broken into separate files on the resumption token), and place in the directory defined by "harvest_data_directory" in <code>config/dpla.yml</code>. This can be handy if you are trying to troubleshoot XML-related issues with a seed's OAI content as it is being delivered to the hub.</p>
<ul>
<li>To harvest all metadata and view the immediately-delivered OAI-PMH before it is converted and ingested, go to the the command line from the root of your Rails application and run the following:</li>