List of usage examples for java.io FileReader FileReader
public FileReader(FileDescriptor fd)
From source file:io.s4.util.AvroSchemaSupplementer.java
public static void main(String args[]) { if (args.length < 1) { System.err.println("No schema filename specified"); System.exit(1);/* w w w.ja v a 2 s . co m*/ } String filename = args[0]; FileReader fr = null; BufferedReader br = null; InputStreamReader isr = null; try { if (filename == "-") { isr = new InputStreamReader(System.in); br = new BufferedReader(isr); } else { fr = new FileReader(filename); br = new BufferedReader(fr); } String inputLine = ""; StringBuffer jsonBuffer = new StringBuffer(); while ((inputLine = br.readLine()) != null) { jsonBuffer.append(inputLine); } JSONObject jsonRecord = new JSONObject(jsonBuffer.toString()); JSONObject keyPathElementSchema = new JSONObject(); keyPathElementSchema.put("name", "KeyPathElement"); keyPathElementSchema.put("type", "record"); JSONArray fieldsArray = new JSONArray(); JSONObject fieldRecord = new JSONObject(); fieldRecord.put("name", "index"); JSONArray typeArray = new JSONArray("[\"int\", \"null\"]"); fieldRecord.put("type", typeArray); fieldsArray.put(fieldRecord); fieldRecord = new JSONObject(); fieldRecord.put("name", "keyName"); typeArray = new JSONArray("[\"string\", \"null\"]"); fieldRecord.put("type", typeArray); fieldsArray.put(fieldRecord); keyPathElementSchema.put("fields", fieldsArray); JSONObject keyInfoSchema = new JSONObject(); keyInfoSchema.put("name", "KeyInfo"); keyInfoSchema.put("type", "record"); fieldsArray = new JSONArray(); fieldRecord = new JSONObject(); fieldRecord.put("name", "keyPath"); typeArray = new JSONArray("[\"string\", \"null\"]"); fieldRecord.put("type", typeArray); fieldsArray.put(fieldRecord); fieldRecord = new JSONObject(); fieldRecord.put("name", "fullKeyPath"); typeArray = new JSONArray("[\"string\", \"null\"]"); fieldRecord.put("type", typeArray); fieldsArray.put(fieldRecord); fieldRecord = new JSONObject(); fieldRecord.put("name", "keyPathElementList"); JSONObject typeRecord = new JSONObject(); typeRecord.put("type", "array"); typeRecord.put("items", keyPathElementSchema); fieldRecord.put("type", typeRecord); fieldsArray.put(fieldRecord); keyInfoSchema.put("fields", fieldsArray); JSONObject partitionInfoSchema = new JSONObject(); partitionInfoSchema.put("name", "PartitionInfo"); partitionInfoSchema.put("type", "record"); fieldsArray = new JSONArray(); fieldRecord = new JSONObject(); fieldRecord.put("name", "partitionId"); typeArray = new JSONArray("[\"int\", \"null\"]"); fieldRecord.put("type", typeArray); fieldsArray.put(fieldRecord); fieldRecord = new JSONObject(); fieldRecord.put("name", "compoundKey"); typeArray = new JSONArray("[\"string\", \"null\"]"); fieldRecord.put("type", typeArray); fieldsArray.put(fieldRecord); fieldRecord = new JSONObject(); fieldRecord.put("name", "compoundValue"); typeArray = new JSONArray("[\"string\", \"null\"]"); fieldRecord.put("type", typeArray); fieldsArray.put(fieldRecord); fieldRecord = new JSONObject(); fieldRecord.put("name", "keyInfoList"); typeRecord = new JSONObject(); typeRecord.put("type", "array"); typeRecord.put("items", keyInfoSchema); fieldRecord.put("type", typeRecord); fieldsArray.put(fieldRecord); partitionInfoSchema.put("fields", fieldsArray); fieldRecord = new JSONObject(); fieldRecord.put("name", "S4__PartitionInfo"); typeRecord = new JSONObject(); typeRecord.put("type", "array"); typeRecord.put("items", partitionInfoSchema); fieldRecord.put("type", typeRecord); fieldsArray = jsonRecord.getJSONArray("fields"); fieldsArray.put(fieldRecord); System.out.println(jsonRecord.toString(3)); } catch (Exception ioe) { throw new RuntimeException(ioe); } finally { if (br != null) try { br.close(); } catch (Exception e) { } if (isr != null) try { isr.close(); } catch (Exception e) { } if (fr != null) try { fr.close(); } catch (Exception e) { } } }
From source file:org.echocat.nodoodle.server.Main.java
public static void main(String[] args) { final File log4jConfig = new File(System.getProperty("log4j.configuration", "../config/log4j.xml")); if (log4jConfig.isFile()) { try {//from w w w . j a v a 2s.com final FileReader reader = new FileReader(log4jConfig); try { final DOMConfigurator domConfigurator = new DOMConfigurator(); domConfigurator.doConfigure(reader, getLoggerRepository()); } finally { IOUtils.closeQuietly(reader); } } catch (Exception e) { throw new RuntimeException("Could not configure log4j with " + log4jConfig + ".", e); } } final String applicationName = getApplicationName(); //System.setSecurityManager(new ServerSecurityManager()); LOG.info("Starting " + applicationName + "..."); final File config = new File( System.getProperty(Main.class.getPackage().getName() + ".config", "../config/nodoodleServer.xml")); final AbstractApplicationContext applicationContext = new FileSystemXmlApplicationContext(config.getPath()); LOG.info("Starting " + applicationName + "... DONE!"); Runtime.getRuntime().addShutdownHook(new Thread("destroyer") { @Override public void run() { LOG.info("Stopping " + applicationName + "..."); applicationContext.stop(); LOG.info("Stopping " + applicationName + "... DONE!"); } }); }
From source file:AverageCost.java
public static void main(String[] args) throws FileNotFoundException, IOException { //Directory of the n files String directory_path = "/home/gauss/rgrunitzki/Dropbox/Profissional/UFRGS/Doutorado/Artigo TRI15/SF Experiments/IQ-Learning/"; BufferedReader reader = null; //Line to analyse String line = ""; String csvDivisor = ";"; int totalLines = 1002; int totalRows = 532; String filesToRead[] = new File(directory_path).list(); Arrays.sort(filesToRead);//w ww .j a v a 2s. co m System.out.println(filesToRead.length); List<List<DescriptiveStatistics>> summary = new ArrayList<>(); for (int i = 0; i <= totalLines; i++) { summary.add(new ArrayList<DescriptiveStatistics>()); for (int j = 0; j <= totalRows; j++) { summary.get(i).add(new DescriptiveStatistics()); } } //reads all files for (String file : filesToRead) { reader = new BufferedReader(new FileReader(directory_path + file)); int lineCounter = 0; //reads all file's line while ((line = reader.readLine()) != null) { if (lineCounter > 0) { String[] rows = line.trim().split(csvDivisor); //reads all line's row for (int r = 0; r < rows.length; r++) { summary.get(lineCounter).get(r).addValue(Double.parseDouble(rows[r])); } } lineCounter++; } //System.out.println(file.split("/")[file.split("/").length - 1] + csvDivisor + arithmeticMean(avgCost) + csvDivisor + standardDeviation(avgCost)); } //generate mean and standard deviation; for (List<DescriptiveStatistics> summaryLines : summary) { System.out.println(); for (DescriptiveStatistics summaryLineRow : summaryLines) { System.out.print(summaryLineRow.getMean() + ";" + summaryLineRow.getStandardDeviation() + ";"); } } }
From source file:de.bitocean.dspm.examples.Vertex.java
public static void main(String[] args) throws GraphIOException, FileNotFoundException, IOException { Reader reader = new FileReader(GRAPHML_ACTIVITY_DEPENDENCY_FILE); BufferedReader br = new BufferedReader(reader); while (br.ready()) { System.out.println(br.readLine()); }/* ww w . ja v a 2s . c o m*/ Transformer<NodeMetadata, Vertex> vtrans = new Transformer<NodeMetadata, Vertex>() { public Vertex transform(NodeMetadata nmd) { Vertex v = new Vertex(); v.id = nmd.getId(); v.name = nmd.getProperty("name"); v.expression = nmd.getProperty("expression"); return v; } }; Transformer<EdgeMetadata, Edge> etrans = new Transformer<EdgeMetadata, Edge>() { public Edge transform(EdgeMetadata emd) { System.out.println(emd.toString()); Edge e = new Edge(); try { e.source = emd.getSource(); } catch (Exception ex) { } e.target = emd.getTarget(); e.weight = Double.parseDouble(emd.getProperty("weight")); return e; } }; Transformer<HyperEdgeMetadata, Edge> hetrans = new Transformer<HyperEdgeMetadata, Edge>() { public Edge transform(HyperEdgeMetadata emd) { Edge e = new Edge(); try { e.source = emd.getProperty("source"); } catch (Exception ex) { } e.target = emd.getProperty("target"); e.weight = Double.parseDouble(emd.getProperty("weight")); return e; } }; Transformer<GraphMetadata, DirectedSparseGraph<Vertex, Edge>> gtrans = new Transformer<GraphMetadata, DirectedSparseGraph<Vertex, Edge>>() { public DirectedSparseGraph<Vertex, Edge> transform(GraphMetadata gmd) { return new DirectedSparseGraph<Vertex, Edge>(); } }; GraphMLReader2<DirectedSparseGraph<Vertex, Edge>, Vertex, Edge> gmlr = //new GraphMLReader2<UndirectedSparseGraph<Vertex,Edge>, Vertex, Edge>(fileReader, graphTransformer, vertexTransformer, edgeTransformer, hyperEdgeTransformer) new GraphMLReader2<DirectedSparseGraph<Vertex, Edge>, Vertex, Edge>(reader, gtrans, vtrans, etrans, hetrans); DirectedSparseGraph<Vertex, Edge> g = gmlr.readGraph(); System.out.println("Number of vetex: " + g.getVertexCount()); System.out.println("Number of edges: " + g.getEdgeCount()); System.out.println("=========================="); System.out.println("Vertices"); System.out.println("=========================="); for (Vertex v : g.getVertices()) { System.out.println(v); } System.out.println("=========================="); System.out.println("Edges"); System.out.println("=========================="); for (Edge e : g.getEdges()) { System.out.println(e); } }
From source file:com.linkedin.pinot.perf.MultiValueReaderWriterBenchmark.java
public static void main(String[] args) throws Exception { List<String> lines = IOUtils.readLines(new FileReader(new File(args[0]))); int totalDocs = lines.size(); int max = Integer.MIN_VALUE; int maxNumberOfMultiValues = Integer.MIN_VALUE; int totalNumValues = 0; int data[][] = new int[totalDocs][]; for (int i = 0; i < lines.size(); i++) { String line = lines.get(i); String[] split = line.split(","); totalNumValues = totalNumValues + split.length; if (split.length > maxNumberOfMultiValues) { maxNumberOfMultiValues = split.length; }/*from ww w . j ava2 s . c om*/ data[i] = new int[split.length]; for (int j = 0; j < split.length; j++) { String token = split[j]; int val = Integer.parseInt(token); data[i][j] = val; if (val > max) { max = val; } } } int maxBitsNeeded = (int) Math.ceil(Math.log(max) / Math.log(2)); int size = 2048; int[] offsets = new int[size]; int bitMapSize = 0; File outputFile = new File("output.mv.fwd"); FixedBitSkipListSCMVWriter fixedBitSkipListSCMVWriter = new FixedBitSkipListSCMVWriter(outputFile, totalDocs, totalNumValues, maxBitsNeeded); for (int i = 0; i < totalDocs; i++) { fixedBitSkipListSCMVWriter.setIntArray(i, data[i]); if (i % size == size - 1) { MutableRoaringBitmap rr1 = MutableRoaringBitmap.bitmapOf(offsets); ByteArrayOutputStream bos = new ByteArrayOutputStream(); DataOutputStream dos = new DataOutputStream(bos); rr1.serialize(dos); dos.close(); //System.out.println("Chunk " + i / size + " bitmap size:" + bos.size()); bitMapSize += bos.size(); } else if (i == totalDocs - 1) { MutableRoaringBitmap rr1 = MutableRoaringBitmap.bitmapOf(Arrays.copyOf(offsets, i % size)); ByteArrayOutputStream bos = new ByteArrayOutputStream(); DataOutputStream dos = new DataOutputStream(bos); rr1.serialize(dos); dos.close(); //System.out.println("Chunk " + i / size + " bitmap size:" + bos.size()); bitMapSize += bos.size(); } } fixedBitSkipListSCMVWriter.close(); System.out.println("Output file size:" + outputFile.length()); System.out.println("totalNumberOfDoc\t\t\t:" + totalDocs); System.out.println("totalNumberOfValues\t\t\t:" + totalNumValues); System.out.println("chunk size\t\t\t\t:" + size); System.out.println("Num chunks\t\t\t\t:" + totalDocs / size); int numChunks = totalDocs / size + 1; int totalBits = (totalNumValues * maxBitsNeeded); int dataSizeinBytes = (totalBits + 7) / 8; System.out.println("Raw data size with fixed bit encoding\t:" + dataSizeinBytes); System.out.println("\nPer encoding size"); System.out.println(); System.out.println("size (offset + length)\t\t\t:" + ((totalDocs * (4 + 4)) + dataSizeinBytes)); System.out.println(); System.out.println("size (offset only)\t\t\t:" + ((totalDocs * (4)) + dataSizeinBytes)); System.out.println(); System.out.println("bitMapSize\t\t\t\t:" + bitMapSize); System.out.println("size (with bitmap)\t\t\t:" + (bitMapSize + (numChunks * 4) + dataSizeinBytes)); System.out.println(); System.out.println("Custom Bitset\t\t\t\t:" + (totalNumValues + 7) / 8); System.out.println("size (with custom bitset)\t\t\t:" + (((totalNumValues + 7) / 8) + (numChunks * 4) + dataSizeinBytes)); }
From source file:TextFileTest.java
public static void main(String[] args) { Employee[] staff = new Employee[3]; staff[0] = new Employee("Carl Cracker", 75000, 1987, 12, 15); staff[1] = new Employee("Harry Hacker", 50000, 1989, 10, 1); staff[2] = new Employee("Tony Tester", 40000, 1990, 3, 15); try {/*from w ww . j ava 2 s . c om*/ // save all employee records to the file employee.dat PrintWriter out = new PrintWriter("employee.dat"); writeData(staff, out); out.close(); // retrieve all records into a new array Scanner in = new Scanner(new FileReader("employee.dat")); Employee[] newStaff = readData(in); in.close(); // print the newly read employee records for (Employee e : newStaff) System.out.println(e); } catch (IOException exception) { exception.printStackTrace(); } }
From source file:org.ala.hbase.NTripleDataLoader.java
/** * @param args/* w w w . j a v a2 s . c o m*/ */ public static void main(String[] args) throws Exception { String defaultFilePath = "/data/bie-staging/dbpedia/dbpedia.txt"; String filePath = null; if (args.length == 0) { filePath = defaultFilePath; } FileReader fr = new FileReader(new File(filePath)); NTripleDataLoader loader = new NTripleDataLoader(); ApplicationContext context = SpringUtils.getContext(); loader.taxonConceptDao = (TaxonConceptDao) context.getBean(TaxonConceptDao.class); loader.load(fr); }
From source file:com.buddycloud.channeldirectory.cli.Main.java
@SuppressWarnings("static-access") public static void main(String[] args) throws Exception { JsonElement rootElement = new JsonParser().parse(new FileReader(QUERIES_FILE)); JsonArray rootArray = rootElement.getAsJsonArray(); Map<String, Query> queries = new HashMap<String, Query>(); for (int i = 0; i < rootArray.size(); i++) { JsonObject queryElement = rootArray.get(i).getAsJsonObject(); String queryName = queryElement.get("name").getAsString(); String type = queryElement.get("type").getAsString(); Query query = null;/*from www.jav a 2 s. co m*/ if (type.equals("solr")) { query = new QueryToSolr(queryElement.get("agg").getAsString(), queryElement.get("core").getAsString(), queryElement.get("q").getAsString()); } else if (type.equals("dbms")) { query = new QueryToDBMS(queryElement.get("q").getAsString()); } queries.put(queryName, query); } LinkedList<String> queriesNames = new LinkedList<String>(queries.keySet()); Collections.sort(queriesNames); Options options = new Options(); options.addOption(OptionBuilder.isRequired(true).withLongOpt("query").hasArg(true) .withDescription("The name of the query. Possible queries are: " + queriesNames).create('q')); options.addOption(OptionBuilder.isRequired(false).withLongOpt("args").hasArg(true) .withDescription("Arguments for the query").create('a')); options.addOption(new Option("?", "help", false, "Print this message")); CommandLineParser parser = new PosixParser(); CommandLine cmd = null; try { cmd = parser.parse(options, args); } catch (ParseException e) { printHelpAndExit(options); } if (cmd.hasOption("help")) { printHelpAndExit(options); } String queryName = cmd.getOptionValue("q"); String argsCmd = cmd.getOptionValue("a"); Properties configuration = ConfigurationUtils.loadConfiguration(); Query query = queries.get(queryName); if (query == null) { printHelpAndExit(options); } System.out.println(query.exec(argsCmd, configuration)); }
From source file:com.makkajai.ObjCToCpp.java
/** * Main Method//from www.ja va 2 s .co m * * @param args - First argument is the input directory to scan and second is the output directory to write files to. * @throws IOException */ public static void main(String[] args) throws IOException { if (args.length < 2) { System.out.println("Invalid Arguments!"); System.out.println( "Usage: java com.makkajai.ObjCToCpp \"<directory to scan for .h and .m files>\" \"<directory to write .h and .cpp files>\""); return; } String inputDirectory = args[0]; String outputDirectory = args[1]; // String inputDirectory = "/Users/administrator/playground/projarea/math-monsters-2/makkajai-number-muncher/makkajai-ios/Makkajai/Makkajai/scenes"; // String outputDirectory = "/Users/administrator/playground/projarea/monster-math-cross-platform/monster-math-2/Classes/Makkajai/scenes"; List<String> exceptFiles = new ArrayList<String>(); if (args.length == 3) { BufferedReader bufferedInputStream = new BufferedReader(new FileReader(args[2])); String exceptFile = null; while ((exceptFile = bufferedInputStream.readLine()) != null) { if (exceptFile.equals("")) continue; exceptFiles.add(exceptFile); } } //Getting all the files from the input directory. final List<File> files = new ArrayList<File>(FileUtils.listFiles(new File(inputDirectory), new RegexFileFilter(FILE_NAME_WITH_H_OR_M), DirectoryFileFilter.DIRECTORY)); // String fileName = //// "/Users/administrator/playground/projarea/math-monsters-2/makkajai-number-muncher/makkajai-ios/Makkajai/Makkajai/Utils/MakkajaiEnum" //// "/Users/administrator/playground/projarea/math-monsters-2/makkajai-number-muncher/makkajai-ios/Makkajai/Makkajai/Utils/MakkajaiUtil" //// "/Users/administrator/playground/projarea/math-monsters-2/makkajai-number-muncher/makkajai-ios/Makkajai/Makkajai/Home" //// "/Users/administrator/playground/projarea/math-monsters-2/makkajai-number-muncher/makkajai-ios/Makkajai/Makkajai/Activities/gnumchmenu/PlayStrategy" //// "/Users/administrator/playground/projarea/math-monsters-2/makkajai-number-muncher/makkajai-ios/Makkajai/Makkajai/Characters/Character" // "/Users/administrator/playground/projarea/math-monsters-2/makkajai-number-muncher/makkajai-ios/Makkajai/Makkajai/Activities/gnumchmenu/GnumchScene" //// "/Users/administrator/playground/projarea/math-monsters-2/makkajai-number-muncher/makkajai-ios/Makkajai/Makkajai/ParentScene" //// "/Users/administrator/playground/projarea/math-monsters-2/makkajai-number-muncher/makkajai-ios/Makkajai/Makkajai/BaseSkillView" //// "/Users/administrator/playground/projarea/math-monsters-2/makkajai-number-muncher/makkajai-ios/Makkajai/Makkajai/YDLayerBase" // ; //The instance of the translator. ObjCToCppTranslator visitor = new ObjCToCppTranslator(); for (int i = 0; i < files.size();) { File currentFile = files.get(i); String filePathRelativeToInput = currentFile.getAbsolutePath().replace(inputDirectory, ""); Date startTime = new Date(); try { final TranslateFileInput translateFileInput = new TranslateFileInput(inputDirectory, outputDirectory, filePathRelativeToInput, false); if (nextFileIsM(currentFile, files, i)) { try { if (isIgnoredFile(filePathRelativeToInput, exceptFiles)) continue; translateFileInput.dryRun = true; visitor.translateFile(translateFileInput); Date stopTime = new Date(); System.out.println("Dry run File: " + translateFileInput.filePathRelativeToInput + " Time Taken: " + getDelta(startTime, stopTime)); Date startTime1 = new Date(); translateFileInput.filePathRelativeToInput = filePathRelativeToInput.replace(H, M); translateFileInput.dryRun = false; visitor.translateFile(translateFileInput); stopTime = new Date(); System.out.println("Processed File: " + translateFileInput.filePathRelativeToInput + " Time Taken: " + getDelta(startTime1, stopTime)); Date startTime2 = new Date(); translateFileInput.filePathRelativeToInput = filePathRelativeToInput; translateFileInput.dryRun = false; visitor.translateFile(translateFileInput); stopTime = new Date(); System.out.println("Processed File: " + translateFileInput.filePathRelativeToInput + " Time Taken: " + getDelta(startTime2, stopTime)); } catch (Exception e) { e.printStackTrace(); System.out.println("###########################Error Processing: " + filePathRelativeToInput + ", Continuing with next set of tiles"); } finally { i += 2; } continue; } if (!isIgnoredFile(filePathRelativeToInput, exceptFiles)) visitor.translateFile(translateFileInput); i++; } catch (Exception e) { e.printStackTrace(); System.out.println("###########################Error Processing: " + filePathRelativeToInput + ", Continuing with next set of tiles"); } finally { Date stopTime = new Date(); // System.out.println("Processed File(s): " + filePathRelativeToInput.replaceAll(H_OR_M, "") + " Time Taken: " + getDelta(startTime, stopTime)); } } }
From source file:ScanXan.java
public static void main(String[] args) throws IOException { Scanner s = null;/*from w w w . j a v a 2 s . c om*/ try { s = new Scanner(new BufferedReader(new FileReader("xanadu.txt"))); while (s.hasNext()) { System.out.println(s.next()); } } finally { if (s != null) { s.close(); } } }