View Javadoc
1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.scm.command.diff;
20  
21  import org.apache.maven.scm.CommandParameter;
22  import org.apache.maven.scm.CommandParameters;
23  import org.apache.maven.scm.ScmException;
24  import org.apache.maven.scm.ScmFileSet;
25  import org.apache.maven.scm.ScmResult;
26  import org.apache.maven.scm.ScmVersion;
27  import org.apache.maven.scm.command.AbstractCommand;
28  import org.apache.maven.scm.provider.ScmProviderRepository;
29  
30  /**
31   * TODO: Better support for entire filesets.
32   * TODO: Better support for entire changesets (ie consistency between revision handling in SVN).
33   * TODO: Consistent handling of revisions, tags and dates - currently only revisions supported
34   *
35   * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
36   * @author <a href="mailto:trygvis@inamo.no">Trygve Laugst&oslash;l</a>
37   * @author <a href="mailto:brett@apache.org">Brett Porter</a>
38   *
39   */
40  public abstract class AbstractDiffCommand extends AbstractCommand {
41      protected abstract DiffScmResult executeDiffCommand(
42              ScmProviderRepository repository, ScmFileSet fileSet, ScmVersion startRevision, ScmVersion endRevision)
43              throws ScmException;
44  
45      /** {@inheritDoc} */
46      public ScmResult executeCommand(ScmProviderRepository repository, ScmFileSet fileSet, CommandParameters parameters)
47              throws ScmException {
48          ScmVersion startRevision = parameters.getScmVersion(CommandParameter.START_SCM_VERSION, null);
49  
50          ScmVersion endRevision = parameters.getScmVersion(CommandParameter.END_SCM_VERSION, null);
51  
52          return executeDiffCommand(repository, fileSet, startRevision, endRevision);
53      }
54  }