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17 package org.apache.commons.io.monitor;
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19 import static org.apache.commons.io.test.TestUtils.sleepQuietly;
20 import static org.junit.jupiter.api.Assertions.assertEquals;
21 import static org.junit.jupiter.api.Assertions.assertTrue;
22 import static org.junit.jupiter.api.Assertions.fail;
23
24 import java.io.File;
25 import java.io.FileFilter;
26 import java.io.IOException;
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28 import org.apache.commons.io.FileUtils;
29 import org.apache.commons.io.filefilter.FileFilterUtils;
30 import org.apache.commons.io.filefilter.HiddenFileFilter;
31 import org.apache.commons.io.filefilter.IOFileFilter;
32 import org.junit.jupiter.api.BeforeEach;
33 import org.junit.jupiter.api.io.TempDir;
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38 public abstract class AbstractMonitorTest {
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41 protected FileAlterationObserver observer;
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44 protected CollectionFileListener listener;
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47 @TempDir
48 protected File testDir;
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51 protected final long pauseTime = 100L;
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58 protected void checkCollectionsEmpty(final String label) {
59 checkCollectionSizes("EMPTY-" + label, 0, 0, 0, 0, 0, 0);
60 }
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73 protected void checkCollectionSizes(String label,
74 final int dirCreate,
75 final int dirChange,
76 final int dirDelete,
77 final int fileCreate,
78 final int fileChange,
79 final int fileDelete) {
80 label = label + "[" + listener.getCreatedDirectories().size() +
81 " " + listener.getChangedDirectories().size() +
82 " " + listener.getDeletedDirectories().size() +
83 " " + listener.getCreatedFiles().size() +
84 " " + listener.getChangedFiles().size() +
85 " " + listener.getDeletedFiles().size() + "]";
86 assertEquals(dirCreate, listener.getCreatedDirectories().size(), label + ": No. of directories created");
87 assertEquals(dirChange, listener.getChangedDirectories().size(), label + ": No. of directories changed");
88 assertEquals(dirDelete, listener.getDeletedDirectories().size(), label + ": No. of directories deleted");
89 assertEquals(fileCreate, listener.getCreatedFiles().size(), label + ": No. of files created");
90 assertEquals(fileChange, listener.getChangedFiles().size(), label + ": No. of files changed");
91 assertEquals(fileDelete, listener.getDeletedFiles().size(), label + ": No. of files deleted");
92 }
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100 protected void createObserver(final File file, final FileFilter fileFilter) {
101 observer = new FileAlterationObserver(file, fileFilter);
102 observer.addListener(listener);
103 observer.addListener(new FileAlterationListenerAdaptor());
104 try {
105 observer.initialize();
106 } catch (final Exception e) {
107 fail("Observer init() threw " + e);
108 }
109 }
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111 @BeforeEach
112 public void setUp() {
113 final IOFileFilter files = FileFilterUtils.fileFileFilter();
114 final IOFileFilter javaSuffix = FileFilterUtils.suffixFileFilter(".java");
115 final IOFileFilter fileFilter = FileFilterUtils.and(files, javaSuffix);
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117 final IOFileFilter directories = FileFilterUtils.directoryFileFilter();
118 final IOFileFilter visible = HiddenFileFilter.VISIBLE;
119 final IOFileFilter dirFilter = FileFilterUtils.and(directories, visible);
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121 final IOFileFilter filter = FileFilterUtils.or(dirFilter, fileFilter);
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123 createObserver(testDir, filter);
124 }
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134 protected File touch(File file) throws IOException {
135 final long lastModified = file.exists() ? FileUtils.lastModified(file) : 0;
136 try {
137 FileUtils.touch(file);
138 assertTrue(file.exists());
139 file = new File(file.getParent(), file.getName());
140 while (lastModified == FileUtils.lastModified(file)) {
141 sleepQuietly(pauseTime);
142 FileUtils.touch(file);
143 file = new File(file.getParent(), file.getName());
144 }
145 } catch (final Exception e) {
146 fail("Touching " + file + ": " + e);
147 }
148 sleepQuietly(pauseTime);
149 return file;
150 }
151
152 }