Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more contributor license * agreements. See the NOTICE file distributed with this work for additional information regarding * copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the License. You may obtain a * copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software distributed under the License * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express * or implied. See the License for the specific language governing permissions and limitations under * the License. * */ package org.apache.geode.management.internal.cli.util; import static java.util.stream.Collectors.toList; import static org.assertj.core.api.Assertions.assertThat; import static org.mockito.Matchers.any; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.when; import org.apache.commons.io.FileUtils; import org.apache.geode.management.internal.configuration.utils.ZipUtils; import org.apache.geode.test.junit.categories.IntegrationTest; import org.junit.Before; import org.junit.Rule; import org.junit.Test; import org.junit.experimental.categories.Category; import org.junit.rules.TemporaryFolder; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.nio.file.Path; import java.util.Comparator; import java.util.List; import java.util.Set; import java.util.stream.Collectors; import java.util.stream.Stream; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; @Category(IntegrationTest.class) public class LogExporterTest { @Rule public TemporaryFolder temporaryFolder = new TemporaryFolder(); private LogExporter logExporter; private LogFilter logFilter; private File workingDir; @Before public void setup() throws Exception { logFilter = mock(LogFilter.class); when(logFilter.acceptsFile(any())).thenReturn(true); when(logFilter.acceptsLine(any())).thenReturn(LogFilter.LineFilterResult.LINE_ACCEPTED); workingDir = temporaryFolder.newFolder("workingDir"); logExporter = new LogExporter(logFilter, new File(workingDir, "server.log"), new File(workingDir, "stats.gfs")); } @Test public void exporterShouldReturnNullIfNoFile() throws Exception { assertThat(logExporter.export()).isNull(); } @Test public void exporterShouldStillReturnFileIfNoAcceptableLogs() throws Exception { File logFile1 = new File(workingDir, "server1.log"); FileUtils.writeStringToFile(logFile1, "some log for server1 \n some other log line"); when(logFilter.acceptsLine(any())).thenReturn(LogFilter.LineFilterResult.LINE_REJECTED); Path exportedZip = logExporter.export(); assertThat(exportedZip).isNotNull(); File unzippedExportDir = temporaryFolder.newFolder("unzippedExport"); ZipUtils.unzip(exportedZip.toString(), unzippedExportDir.getCanonicalPath()); assertThat(unzippedExportDir.listFiles()).hasSize(1); // check the exported file has no content BufferedReader br = new BufferedReader(new FileReader(new File(unzippedExportDir, "server1.log"))); assertThat(br.readLine()).isNull(); } @Test public void exportBuildsZipCorrectlyWithTwoLogFiles() throws Exception { File logFile1 = new File(workingDir, "server1.log"); FileUtils.writeStringToFile(logFile1, "some log for server1 \n some other log line"); File logFile2 = new File(workingDir, "server2.log"); FileUtils.writeStringToFile(logFile2, "some log for server2 \n some other log line"); File notALogFile = new File(workingDir, "foo.txt"); FileUtils.writeStringToFile(notALogFile, "some text"); Path zippedExport = logExporter.export(); File unzippedExportDir = temporaryFolder.newFolder("unzippedExport"); ZipUtils.unzip(zippedExport.toString(), unzippedExportDir.getCanonicalPath()); assertThat(unzippedExportDir.listFiles()).hasSize(2); List<File> exportedFiles = Stream.of(unzippedExportDir.listFiles()) .sorted(Comparator.comparing(File::getName)).collect(toList()); assertThat(exportedFiles.get(0)).hasSameContentAs(logFile1); assertThat(exportedFiles.get(1)).hasSameContentAs(logFile2); } @Test public void findLogFilesExcludesFilesWithIncorrectExtension() throws Exception { File logFile = new File(workingDir, "server.log"); FileUtils.writeStringToFile(logFile, "some log line"); File notALogFile = new File(workingDir, "foo.txt"); FileUtils.writeStringToFile(notALogFile, "some text"); assertThat(logExporter.findLogFiles(workingDir.toPath())).contains(logFile.toPath()); assertThat(logExporter.findLogFiles(workingDir.toPath())).doesNotContain(notALogFile.toPath()); } @Test public void findStatFiles() throws Exception { File statFile = new File(workingDir, "server.gfs"); FileUtils.writeStringToFile(statFile, "some stat line"); File notALogFile = new File(workingDir, "foo.txt"); FileUtils.writeStringToFile(notALogFile, "some text"); assertThat(logExporter.findStatFiles(workingDir.toPath())).contains(statFile.toPath()); assertThat(logExporter.findStatFiles(workingDir.toPath())).doesNotContain(notALogFile.toPath()); } static Set<String> getZipEntries(String zipFilePath) throws IOException { return new ZipFile(zipFilePath).stream().map(ZipEntry::getName).collect(Collectors.toSet()); } }