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| nl.toolforge.karma.core.vc.RunnerFactory |
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| 1 | /* |
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| 2 | Karma core - Core of the Karma application |
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| 3 | Copyright (C) 2004 Toolforge <www.toolforge.nl> |
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| 4 | ||
| 5 | This library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | ||
| 10 | This library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | ||
| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with this library; if not, write to the Free Software |
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| 17 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 18 | */ |
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| 19 | package nl.toolforge.karma.core.vc; |
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| 20 | ||
| 21 | import nl.toolforge.karma.core.KarmaRuntimeException; |
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| 22 | import nl.toolforge.karma.core.location.Location; |
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| 23 | import nl.toolforge.karma.core.vc.cvsimpl.CVSRepository; |
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| 24 | import nl.toolforge.karma.core.vc.cvsimpl.CVSRunner; |
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| 25 | import nl.toolforge.karma.core.vc.svnimpl.SubversionLocationImpl; |
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| 26 | import org.apache.commons.logging.Log; |
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| 27 | import org.apache.commons.logging.LogFactory; |
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| 28 | ||
| 29 | /** |
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| 30 | * Factory producing {@link Runner} instances. |
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| 31 | * |
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| 32 | * @author D.A. Smedes |
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| 33 | * @version $Id: RunnerFactory.java,v 1.14 2004/11/10 22:25:11 hippe Exp $ |
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| 34 | */ |
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| 35 | public final class RunnerFactory { |
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| 36 | ||
| 37 | 70 | private static Log logger = LogFactory.getLog(RunnerFactory.class); |
| 38 | 2 | |
| 39 | 0 | private RunnerFactory() {} |
| 40 | ||
| 41 | /** |
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| 42 | * A <code>Runner</code> might be required for a command to execute something on a version control system. A module |
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| 43 | * can determine which implementation of a runner it requires through the |
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| 44 | * {@link nl.toolforge.karma.core.module.Module#getLocation} method. |
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| 45 | * |
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| 46 | * @param location The location for which a runner is required. |
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| 47 | * @return A version control system specific <code>Runner</code>. |
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| 48 | * @throws VersionControlException |
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| 49 | * @throws AuthenticationException |
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| 50 | */ |
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| 51 | public static Runner getRunner(Location location) throws VersionControlException, AuthenticationException { |
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| 52 | ||
| 53 | 350 | if (location == null) { |
| 54 | 182 | throw new IllegalArgumentException("Location cannot be null."); |
| 55 | } |
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| 56 | 170 | |
| 57 | 180 | if (location instanceof CVSRepository) { |
| 58 | 362 | return new CVSRunner(location); |
| 59 | 12 | } |
| 60 | 0 | if (location instanceof SubversionLocationImpl) { |
| 61 | 0 | throw new KarmaRuntimeException("Subversion is not possible in Karma 1.0."); |
| 62 | } |
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| 63 | 0 | throw new KarmaRuntimeException("Unsupported `Location` type."); |
| 64 | } |
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| 65 | } |
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