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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.plugins.invoker;
20  
21  import java.io.File;
22  import java.io.FilenameFilter;
23  
24  /**
25   * Provides utility methods for invoker report processing.
26   *
27   * @author Benjamin Bentmann
28   */
29  class ReportUtils {
30  
31      private static class FileFilterOnlyXmlFile implements FilenameFilter {
32  
33          public boolean accept(File dir, String name) {
34              return name.startsWith("BUILD-") && name.endsWith(".xml");
35          }
36      }
37  
38      /**
39       * Gets the paths to the invoker reports available in the specified directory.
40       *
41       * @param reportsDirectory The base directory where the invoker reports are located in, may be <code>null</code>.
42       * @return The paths to the invoker reports, can be empty but never <code>null</code>.
43       */
44      public static File[] getReportFiles(File reportsDirectory) {
45          File[] reportFiles =
46                  (reportsDirectory != null) ? reportsDirectory.listFiles(new FileFilterOnlyXmlFile()) : null;
47  
48          if (reportFiles == null) {
49              reportFiles = new File[0];
50          }
51  
52          return reportFiles;
53      }
54  }