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annotate m-toolbox/html_help/help/ug/repo_connect_content.html @ 41:6def6533cb16 database-connection-manager

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Report authentication errors to user
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 18:04:34 +0100
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1 <p>
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2
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3 Connection to an LTPDA Repository is normally carried out as part of other processes. For example, when submitting an
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4 object to the repository using the <tt>submit</tt> command, the user is prompted to login to the chosen repository.
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5 </p>
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6 <p>
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7 It is also possible to connect to a repository using a script interface. The result is a connection object which can
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8 be passed to other methods (for example, <tt>submit</tt>), thus allowing the construction of more automated procedures
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9 for interacting with repositories.
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10 </p>
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11 <p>
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12 To connect to a repository using the script interface, us the command <tt>utils.jmysql.connect</tt>. It takes the following input arguments:
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13
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14 <table border="1" cellpadding="2" width="30%" bgcolor="#DDDDDD">
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15 <tr valign="top">
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16 <td><tt>hostname</tt></td><td>A hostname for the repository</td>
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17 </tr>
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18 <tr valign="top">
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19 <td><tt>dbname</tt></td><td>A database name to connect to</td>
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20 </tr>
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21 <tr valign="top">
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22 <td><tt>username</tt></td><td>[optional] A username to connect with</td>
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23 </tr>
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24 <tr valign="top">
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25 <td><tt>username</tt></td><td>[optional] A password to connect with</td>
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26 </tr>
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27 </table>
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28
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29 <br> If you don't supply them as input arguments, you will then be prompted for a
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30 valid username and password.
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31 <br>
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32 The result is a <tt>mpipeline.repository.RepositoryConnection</tt> object which can be further used to interact with the repository.
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33 <br>
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34 To disconnect from the server, use the <tt>closeConnection</tt> method of the <tt>mpipeline.repository.RepositoryConnection</tt> class:
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35
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36 <div class="fragment"><pre>
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37 >> conn.closeConnection
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38 </pre></div>
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39
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40 </p>
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41
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