Java tutorial
/* * Copyright 2014 Mikael Svensson * * Licensed 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 info.mikaelsvensson.devtools.analysis.localaccesslog; import info.mikaelsvensson.devtools.analysis.shared.AbstractAnalyzer; import info.mikaelsvensson.devtools.analysis.shared.CliHelp; import info.mikaelsvensson.devtools.analysis.shared.ReportGenerator; import info.mikaelsvensson.devtools.analysis.shared.reportprinter.PlainTextReportPrinter; import org.apache.commons.cli.CommandLine; import org.apache.commons.io.FileUtils; import org.apache.commons.io.filefilter.PrefixFileFilter; import org.apache.commons.io.filefilter.TrueFileFilter; import java.io.File; import java.util.Collection; import java.util.Collections; @CliHelp(text = "" + "Counts the number of different http status codes in the http access log, e.g. localhost_access_log.log. " + "The result is exported as both a plain-text report and a pie chart.") public class LocalAccessLogAnalyzer extends AbstractAnalyzer { public static void main(String[] args) throws Exception { new LocalAccessLogAnalyzer().run(args); } @Override protected void runImpl(CommandLine commandLine, String[] paths, String reportFileName) throws Exception { for (String path : paths) { File f = new File(path); Collection<File> files = f.isFile() ? Collections.singletonList(f) : (f.isDirectory() ? FileUtils.listFiles(f, new PrefixFileFilter("localhost_access_log"), TrueFileFilter.INSTANCE) : Collections.<File>emptyList()); for (File file : files) { LocalAccessLog log = new LocalAccessLog(file); final ReportGenerator reportGenerator = new LocalAccessLogReportGenerator(log); final String pathname = getFormattedString(reportFileName, file); reportGenerator.generateReport(new File(pathname), new PlainTextReportPrinter()); } } } }