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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!--
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/*******************************************************************************
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* Copyright (c) 2008 The Eclipse Foundation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* The Eclipse Foundation - initial API and implementation
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*******************************************************************************/
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-->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<title>How Does it Work?</title>
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<link rel="stylesheet" type="text/css" href="PLUGINS_ROOT/PRODUCT_PLUGIN/book.css" media="screen" />
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</head>
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<body>
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<h1>How Does it Work?</h1>
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<p>The Usage Data Collector is designed to have a minimal impact on user
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experience. The impact on performance is negligible.</p>
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<p>Once installed, the Usage Data Collector immediately starts
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monitoring your use of Eclipse. In particular, it takes note of the
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views, editors, perspectives, and commands that you use. It also keeps
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track of when you bring the Eclipse workbench window into focus. At a
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lower level, the Usage Data Collector records the bundles (plug-ins)
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that are loaded by Eclipse. The information collected amounts to the id
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of the entity (view, editor, perspective, etc.), the symbolic name and
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version of the bundle that contains the entity, and the time of the
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event.</p>
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<p>We recognize that the data collected may contain sensitive
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information. Symbolic names for bundles can potentially include company
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and product names; bundle versions, as well as view, editor, and
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perspective ids could potentially also contain sensitive information.
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With this in mind, the Usage Data Collector includes a filtering
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framework that can be used to restrict the type of information that is
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uploaded.</p>
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<p>After a configurable period of time (five days by default)
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passes, it asks you for permission to upload.</p>
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<p align="center"><img src="UploadWiz.png" /></p>
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<p>At this point, you can tell the Usage Data Collector what you want to
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do:</p>
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<ul>
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<li><em>Upload now</em> tells the Usage Data Collector to upload the
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data that has been captured to date. After the same configurable period
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of time passes, you will be asked again.</li>
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<li><em>Upload always</em> tells the Usage Data Collector to upload the
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data that has been captured to date and not ask again. Henceforth, the
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data will be uploaded without asking.</li>
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<li><em>Don't upload</em> tells the Usage Data Collector not to upload
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the data that has been captured. After that same configurable period of
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time passes, you will be asked again. All the data collected to this
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point will be retained.</li>
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<li><em>Turn UDC feature off</em> tells the Usage Data Collector not to
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upload the data and to stop collecting the data altogether. This turns
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off the usage data collection.</li>
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</ul>
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<p>The period of time between requests to upload the usage data can be
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configured by changing the "Upload Period" field on the
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"Usage Data Collection | Uploading" preferences page.</p>
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<p align="center"><img src="UploadingPrefs.png" /></p>
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<p>The target for uploads is a server hosted by The Eclipse Foundation.
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The data is stored in its collected form in a foundation database.</p>
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<p>Two different keys are used to identify the source of the uploaded
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data. The first key identifies the workstation; this key is stored
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locally in your "user home" directory. The second key
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identifies the workspace; this key is stored in the <em><?= $tempdir ?></em>
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directory for the workspace. These keys are uploaded along with the
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usage data.</p>
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</body>
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</html> |