Example usage for java.io OutputStreamWriter OutputStreamWriter

List of usage examples for java.io OutputStreamWriter OutputStreamWriter

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Introduction

In this page you can find the example usage for java.io OutputStreamWriter OutputStreamWriter.

Prototype

public OutputStreamWriter(OutputStream out)

Source Link

Document

Creates an OutputStreamWriter that uses the default character encoding.

Usage

From source file:edu.cmu.lti.oaqa.knn4qa.apps.ExtractDataAndQueryAsSparseVectors.java

public static void main(String[] args) {
    String optKeys[] = { CommonParams.MAX_NUM_QUERY_PARAM, MAX_NUM_DATA_PARAM, CommonParams.MEMINDEX_PARAM,
            IN_QUERIES_PARAM, OUT_QUERIES_PARAM, OUT_DATA_PARAM, TEXT_FIELD_PARAM, TEST_QTY_PARAM, };
    String optDescs[] = { CommonParams.MAX_NUM_QUERY_DESC, MAX_NUM_DATA_DESC, CommonParams.MEMINDEX_DESC,
            IN_QUERIES_DESC, OUT_QUERIES_DESC, OUT_DATA_DESC, TEXT_FIELD_DESC, TEST_QTY_DESC };
    boolean hasArg[] = { true, true, true, true, true, true, true, true };

    ParamHelper prmHlp = null;//w w w .j a  v a 2  s .  c o m

    try {

        prmHlp = new ParamHelper(args, optKeys, optDescs, hasArg);

        CommandLine cmd = prmHlp.getCommandLine();
        Options opt = prmHlp.getOptions();

        int maxNumQuery = Integer.MAX_VALUE;

        String tmpn = cmd.getOptionValue(CommonParams.MAX_NUM_QUERY_PARAM);
        if (tmpn != null) {
            try {
                maxNumQuery = Integer.parseInt(tmpn);
            } catch (NumberFormatException e) {
                UsageSpecify(CommonParams.MAX_NUM_QUERY_PARAM, opt);
            }
        }

        int maxNumData = Integer.MAX_VALUE;
        tmpn = cmd.getOptionValue(MAX_NUM_DATA_PARAM);
        if (tmpn != null) {
            try {
                maxNumData = Integer.parseInt(tmpn);
            } catch (NumberFormatException e) {
                UsageSpecify(MAX_NUM_DATA_PARAM, opt);
            }
        }
        String memIndexPref = cmd.getOptionValue(CommonParams.MEMINDEX_PARAM);
        if (null == memIndexPref) {
            UsageSpecify(CommonParams.MEMINDEX_PARAM, opt);
        }
        String textField = cmd.getOptionValue(TEXT_FIELD_PARAM);
        if (null == textField) {
            UsageSpecify(TEXT_FIELD_PARAM, opt);
        }

        textField = textField.toLowerCase();
        int fieldId = -1;
        for (int i = 0; i < FeatureExtractor.mFieldNames.length; ++i)
            if (FeatureExtractor.mFieldNames[i].compareToIgnoreCase(textField) == 0) {
                fieldId = i;
                break;
            }
        if (-1 == fieldId) {
            Usage("Wrong field index, should be one of the following: "
                    + String.join(",", FeatureExtractor.mFieldNames), opt);
        }

        InMemForwardIndex indx = new InMemForwardIndex(
                FeatureExtractor.indexFileName(memIndexPref, FeatureExtractor.mFieldNames[fieldId]));

        BM25SimilarityLucene bm25simil = new BM25SimilarityLucene(FeatureExtractor.BM25_K1,
                FeatureExtractor.BM25_B, indx);

        String inQueryFile = cmd.getOptionValue(IN_QUERIES_PARAM);
        String outQueryFile = cmd.getOptionValue(OUT_QUERIES_PARAM);
        if ((inQueryFile == null) != (outQueryFile == null)) {
            Usage("You should either specify both " + IN_QUERIES_PARAM + " and " + OUT_QUERIES_PARAM
                    + " or none of them", opt);
        }
        String outDataFile = cmd.getOptionValue(OUT_DATA_PARAM);

        tmpn = cmd.getOptionValue(TEST_QTY_PARAM);
        int testQty = 0;
        if (tmpn != null) {
            try {
                testQty = Integer.parseInt(tmpn);
            } catch (NumberFormatException e) {
                UsageSpecify(TEST_QTY_PARAM, opt);
            }
        }

        ArrayList<DocEntry> testDocEntries = new ArrayList<DocEntry>();
        ArrayList<DocEntry> testQueryEntries = new ArrayList<DocEntry>();
        ArrayList<TrulySparseVector> testDocVectors = new ArrayList<TrulySparseVector>();
        ArrayList<TrulySparseVector> testQueryVectors = new ArrayList<TrulySparseVector>();

        if (outDataFile != null) {
            BufferedWriter out = new BufferedWriter(
                    new OutputStreamWriter(CompressUtils.createOutputStream(outDataFile)));

            ArrayList<DocEntryExt> docEntries = indx.getDocEntries();

            for (int id = 0; id < Math.min(maxNumData, docEntries.size()); ++id) {
                DocEntry e = docEntries.get(id).mDocEntry;
                TrulySparseVector v = bm25simil.getDocSparseVector(e, false);
                if (id < testQty) {
                    testDocEntries.add(e);
                    testDocVectors.add(v);
                }
                outputVector(out, v);
            }

            out.close();

        }

        Splitter splitOnSpace = Splitter.on(' ').trimResults().omitEmptyStrings();

        if (outQueryFile != null) {
            BufferedReader inpText = new BufferedReader(
                    new InputStreamReader(CompressUtils.createInputStream(inQueryFile)));
            BufferedWriter out = new BufferedWriter(
                    new OutputStreamWriter(CompressUtils.createOutputStream(outQueryFile)));

            String queryText = XmlHelper.readNextXMLIndexEntry(inpText);

            for (int queryQty = 0; queryText != null && queryQty < maxNumQuery; queryText = XmlHelper
                    .readNextXMLIndexEntry(inpText), queryQty++) {
                Map<String, String> queryFields = null;
                // 1. Parse a query

                try {
                    queryFields = XmlHelper.parseXMLIndexEntry(queryText);
                } catch (Exception e) {
                    System.err.println("Parsing error, offending QUERY:\n" + queryText);
                    throw new Exception("Parsing error.");
                }

                String fieldText = queryFields.get(FeatureExtractor.mFieldsSOLR[fieldId]);

                if (fieldText == null) {
                    fieldText = "";
                }

                ArrayList<String> tmpa = new ArrayList<String>();
                for (String s : splitOnSpace.split(fieldText))
                    tmpa.add(s);

                DocEntry e = indx.createDocEntry(tmpa.toArray(new String[tmpa.size()]));

                TrulySparseVector v = bm25simil.getDocSparseVector(e, true);
                if (queryQty < testQty) {
                    testQueryEntries.add(e);
                    testQueryVectors.add(v);
                }
                outputVector(out, v);
            }

            out.close();
        }

        int testedQty = 0, diffQty = 0;
        // Now let's do some testing
        for (int iq = 0; iq < testQueryEntries.size(); ++iq) {
            DocEntry queryEntry = testQueryEntries.get(iq);
            TrulySparseVector queryVector = testQueryVectors.get(iq);
            for (int id = 0; id < testDocEntries.size(); ++id) {
                DocEntry docEntry = testDocEntries.get(id);
                TrulySparseVector docVector = testDocVectors.get(id);
                float val1 = bm25simil.compute(queryEntry, docEntry);
                float val2 = TrulySparseVector.scalarProduct(queryVector, docVector);
                ++testedQty;
                if (Math.abs(val1 - val2) > 1e5) {
                    System.err.println(
                            String.format("Potential mismatch BM25=%f <-> scalar product=%f", val1, val2));
                    ++diffQty;
                }
            }
        }
        if (testedQty > 0)
            System.out.println(String.format("Tested %d Mismatched %d", testedQty, diffQty));

    } catch (ParseException e) {
        Usage("Cannot parse arguments: " + e, prmHlp != null ? prmHlp.getOptions() : null);
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
        System.err.println("Terminating due to an exception: " + e);
        System.exit(1);
    }
}

From source file:edu.usc.qufd.Main.java

/**
 * The main method.//from w  ww  .  jav  a  2 s.c o m
 *
 * @param args the arguments
 * @throws IOException Signals that an I/O exception has occurred.
 */
public static void main(String[] args) throws IOException {
    if (parseInputs(args) == false) {
        System.exit(-1); //The input files do not exist
    }

    /*
     * Parsing inputs: fabric & qasm file
     */
    PrintWriter outputFile;
    RandomAccessFile raf = null;
    String latencyPlaceHolder;
    if (RuntimeConfig.OUTPUT_TO_FILE) {
        latencyPlaceHolder = "Total Latency: " + Long.MAX_VALUE + " us" + System.lineSeparator();
        raf = new RandomAccessFile(outputFileAddr, "rws");
        //removing the old values in the file
        raf.setLength(0);
        //writing a place holder for the total latency
        raf.writeBytes(latencyPlaceHolder);
        raf.close();

        outputFile = new PrintWriter(new BufferedWriter(new FileWriter(outputFileAddr, true)), true);
    } else { //writing to stdout
        outputFile = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)), true);
    }
    /* parsing the input*/
    layout = LayoutParser.parse(pmdFileAddr);
    qasm = QASMParser.QASMParser(qasmFileAddr, layout);

    long totalLatency = qufd(outputFile);

    if (RuntimeConfig.OUTPUT_TO_FILE) {
        outputFile.close();
        //Over writing the place holder with the actual latency
        String latencyActual = "Total Latency: " + totalLatency + " " + layout.getTimeUnit();
        latencyActual = StringUtils.rightPad(latencyActual,
                latencyPlaceHolder.length() - System.lineSeparator().length());
        raf = new RandomAccessFile(outputFileAddr, "rws");
        //Writing to the top of a file
        raf.seek(0);
        //writing the actual total latency in the at the top of the output file
        raf.writeBytes(latencyActual + System.lineSeparator());
        raf.close();
    } else {
        outputFile.flush();
        System.out.println("Total Latency: " + totalLatency + " " + layout.getTimeUnit());
    }

    if (RuntimeConfig.VERBOSE) {
        System.out.println("Done.");
    }
    outputFile.close();
}

From source file:act.installer.pubchem.PubchemSynonymFinder.java

public static void main(String[] args) throws Exception {
    org.apache.commons.cli.Options opts = new org.apache.commons.cli.Options();
    for (Option.Builder b : OPTION_BUILDERS) {
        opts.addOption(b.build());//w w  w .  jav a  2s .com
    }

    CommandLine cl = null;
    try {
        CommandLineParser parser = new DefaultParser();
        cl = parser.parse(opts, args);
    } catch (ParseException e) {
        System.err.format("Argument parsing failed: %s\n", e.getMessage());
        HELP_FORMATTER.printHelp(PubchemSynonymFinder.class.getCanonicalName(), HELP_MESSAGE, opts, null, true);
        System.exit(1);
    }

    if (cl.hasOption("help")) {
        HELP_FORMATTER.printHelp(PubchemSynonymFinder.class.getCanonicalName(), HELP_MESSAGE, opts, null, true);
        return;
    }

    File rocksDBFile = new File(cl.getOptionValue(OPTION_INDEX_PATH));
    if (!rocksDBFile.isDirectory()) {
        System.err.format("Index directory does not exist or is not a directory at '%s'",
                rocksDBFile.getAbsolutePath());
        HELP_FORMATTER.printHelp(PubchemSynonymFinder.class.getCanonicalName(), HELP_MESSAGE, opts, null, true);
        System.exit(1);
    }

    List<String> compoundIds = null;
    if (cl.hasOption(OPTION_PUBCHEM_COMPOUND_ID)) {
        compoundIds = Collections.singletonList(cl.getOptionValue(OPTION_PUBCHEM_COMPOUND_ID));
    } else if (cl.hasOption(OPTION_IDS_FILE)) {
        File idsFile = new File(cl.getOptionValue(OPTION_IDS_FILE));
        if (!idsFile.exists()) {
            System.err.format("Cannot find Pubchem CIDs file at %s", idsFile.getAbsolutePath());
            HELP_FORMATTER.printHelp(PubchemSynonymFinder.class.getCanonicalName(), HELP_MESSAGE, opts, null,
                    true);
            System.exit(1);
        }

        compoundIds = getCIDsFromFile(idsFile);

        if (compoundIds.size() == 0) {
            System.err.format("Found zero Pubchem CIDs to process in file at '%s', exiting",
                    idsFile.getAbsolutePath());
            HELP_FORMATTER.printHelp(PubchemSynonymFinder.class.getCanonicalName(), HELP_MESSAGE, opts, null,
                    true);
            System.exit(1);
        }
    } else {
        System.err.format("Must specify one of '%s' or '%s'; index is too big to print all synonyms.",
                OPTION_PUBCHEM_COMPOUND_ID, OPTION_IDS_FILE);
        HELP_FORMATTER.printHelp(PubchemSynonymFinder.class.getCanonicalName(), HELP_MESSAGE, opts, null, true);
        System.exit(1);
    }

    // Run a quick check to warn users of malformed ids.
    compoundIds.forEach(x -> {
        if (!PC_CID_PATTERN.matcher(x).matches()) { // Use matches() for complete matching.
            LOGGER.warn("Specified compound id does not match expected format: %s", x);
        }
    });

    LOGGER.info("Opening DB and searching for %d Pubchem CIDs", compoundIds.size());
    Pair<RocksDB, Map<PubchemTTLMerger.COLUMN_FAMILIES, ColumnFamilyHandle>> dbAndHandles = null;
    Map<String, PubchemSynonyms> results = new LinkedHashMap<>(compoundIds.size());
    try {
        dbAndHandles = PubchemTTLMerger.openExistingRocksDB(rocksDBFile);
        RocksDB db = dbAndHandles.getLeft();
        ColumnFamilyHandle cidToSynonymsCfh = dbAndHandles.getRight()
                .get(PubchemTTLMerger.COLUMN_FAMILIES.CID_TO_SYNONYMS);

        for (String cid : compoundIds) {
            PubchemSynonyms synonyms = null;
            byte[] val = db.get(cidToSynonymsCfh, cid.getBytes(UTF8));
            if (val != null) {
                ObjectInputStream oi = new ObjectInputStream(new ByteArrayInputStream(val));
                // We're relying on our use of a one-value-type per index model here so we can skip the instanceof check.
                synonyms = (PubchemSynonyms) oi.readObject();
            } else {
                LOGGER.warn("No synonyms available for compound id '%s'", cid);
            }
            results.put(cid, synonyms);
        }
    } finally {
        if (dbAndHandles != null) {
            dbAndHandles.getLeft().close();
        }
    }

    try (OutputStream outputStream = cl.hasOption(OPTION_OUTPUT)
            ? new FileOutputStream(cl.getOptionValue(OPTION_OUTPUT))
            : System.out) {
        OBJECT_MAPPER.writerWithDefaultPrettyPrinter().writeValue(outputStream, results);
        new OutputStreamWriter(outputStream).append('\n');
    }
    LOGGER.info("Done searching for Pubchem synonyms");
}

From source file:Main.java

public static void reboot() {
    try {/*from   w w w  .  ja va  2  s  .  co m*/
        Process su = Runtime.getRuntime().exec("su");
        OutputStreamWriter out = new OutputStreamWriter(su.getOutputStream());
        out.write("reboot");
        out.flush();
        out.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static void wirteStringToStream(OutputStream out, String src) throws IOException {
    final OutputStreamWriter writer = new OutputStreamWriter(out);
    writer.write(src);//  w w w  .j  a  v a  2s  .  c o m
    writer.flush();
}

From source file:Main.java

public static void writeToFile(String path, String data) {
    try {//from  w w w . j ava2 s .  com
        OutputStreamWriter outputStreamWriter = new OutputStreamWriter(new FileOutputStream(path));
        outputStreamWriter.write(data);
        outputStreamWriter.close();
    } catch (IOException e) {
        Log.e("Exception", "File write failed: " + e.toString());
    }
}

From source file:Main.java

public static Process execute(String command) throws Exception {
    final Process process = new ProcessBuilder("sh").redirectErrorStream(true).start();

    BufferedWriter stdOutput = new BufferedWriter(new OutputStreamWriter(process.getOutputStream()));

    stdOutput.write(command + "; exit\n");
    stdOutput.flush();//from w ww . j  a  v a2s  .c  o  m
    stdOutput.close();

    return process;
}

From source file:Main.java

public static boolean isRooted() {
    Process p;/* w  w w. j  av a 2  s .com*/
    try {
        p = new ProcessBuilder("su").start();
        BufferedWriter stdin = new BufferedWriter(new OutputStreamWriter(p.getOutputStream()));
        BufferedReader stdout = new BufferedReader(new InputStreamReader(p.getInputStream()));

        stdin.write("whoami");
        stdin.newLine();
        stdin.write("exit");
        stdin.newLine();
        stdin.close();
        try {
            p.waitFor();
            if (!stdout.ready())
                return false;
            String user = stdout.readLine(); //We only expect one line of output
            stdout.close();
            if (user == "root") {
                return true;
            } else {
                return false;
            }
        } catch (InterruptedException e) {
            e.printStackTrace();
            return false;
        }
    } catch (IOException e) {
        e.printStackTrace();
        return false;
    }
}

From source file:com.jgaap.backend.CLI.java

/**
 * Parses the arguments passed to jgaap from the command line. Will either
 * display the help or run jgaap on an experiment.
 * /* w  w w  .  j a  v  a2  s.  c o  m*/
 * @param args
 *            command line arguments
 * @throws Exception
 */
public static void main(String[] args) throws Exception {
    CommandLineParser parser = new GnuParser();
    CommandLine cmd = parser.parse(options, args);
    if (cmd.hasOption('h')) {
        String command = cmd.getOptionValue('h');
        if (command == null) {
            HelpFormatter helpFormatter = new HelpFormatter();
            helpFormatter.setLeftPadding(5);
            helpFormatter.setWidth(100);
            helpFormatter.printHelp(
                    "jgaap -c [canon canon ...] -es [event] -ec [culler culler ...] -a [analysis] <-d [distance]> -l [file] <-s [file]>",
                    "Welcome to JGAAP the Java Graphical Authorship Attribution Program.\nMore information can be found at http://jgaap.com",
                    options, "Copyright 2013 Evaluating Variation in Language Lab, Duquesne University");
        } else {
            List<Displayable> list = new ArrayList<Displayable>();
            if (command.equalsIgnoreCase("c")) {
                list.addAll(Canonicizers.getCanonicizers());
            } else if (command.equalsIgnoreCase("es")) {
                list.addAll(EventDrivers.getEventDrivers());
            } else if (command.equalsIgnoreCase("ec")) {
                list.addAll(EventCullers.getEventCullers());
            } else if (command.equalsIgnoreCase("a")) {
                list.addAll(AnalysisDrivers.getAnalysisDrivers());
            } else if (command.equalsIgnoreCase("d")) {
                list.addAll(DistanceFunctions.getDistanceFunctions());
            } else if (command.equalsIgnoreCase("lang")) {
                list.addAll(Languages.getLanguages());
            }
            for (Displayable display : list) {
                if (display.showInGUI())
                    System.out.println(display.displayName() + " - " + display.tooltipText());
            }
            if (list.isEmpty()) {
                System.out.println("Option " + command + " was not found.");
                System.out.println("Please use c, es, d, a, or lang");
            }
        }
    } else if (cmd.hasOption('v')) {
        System.out.println("Java Graphical Authorship Attribution Program version 5.2.0");
    } else if (cmd.hasOption("ee")) {
        String eeFile = cmd.getOptionValue("ee");
        String lang = cmd.getOptionValue("lang");
        ExperimentEngine.runExperiment(eeFile, lang);
        System.exit(0);
    } else {
        JGAAP.commandline = true;
        API api = API.getPrivateInstance();
        String documentsFilePath = cmd.getOptionValue('l');
        if (documentsFilePath == null) {
            throw new Exception("No Documents CSV specified");
        }
        List<Document> documents;
        if (documentsFilePath.startsWith(JGAAPConstants.JGAAP_RESOURCE_PACKAGE)) {
            documents = Utils.getDocumentsFromCSV(
                    CSVIO.readCSV(com.jgaap.JGAAP.class.getResourceAsStream(documentsFilePath)));
        } else {
            documents = Utils.getDocumentsFromCSV(CSVIO.readCSV(documentsFilePath));
        }
        for (Document document : documents) {
            api.addDocument(document);
        }
        String language = cmd.getOptionValue("lang", "english");
        api.setLanguage(language);
        String[] canonicizers = cmd.getOptionValues('c');
        if (canonicizers != null) {
            for (String canonicizer : canonicizers) {
                api.addCanonicizer(canonicizer);
            }
        }
        String[] events = cmd.getOptionValues("es");
        if (events == null) {
            throw new Exception("No EventDriver specified");
        }
        for (String event : events) {
            api.addEventDriver(event);
        }
        String[] eventCullers = cmd.getOptionValues("ec");
        if (eventCullers != null) {
            for (String eventCuller : eventCullers) {
                api.addEventCuller(eventCuller);
            }
        }
        String analysis = cmd.getOptionValue('a');
        if (analysis == null) {
            throw new Exception("No AnalysisDriver specified");
        }
        AnalysisDriver analysisDriver = api.addAnalysisDriver(analysis);
        String distanceFunction = cmd.getOptionValue('d');
        if (distanceFunction != null) {
            api.addDistanceFunction(distanceFunction, analysisDriver);
        }
        api.execute();
        List<Document> unknowns = api.getUnknownDocuments();
        OutputStreamWriter outputStreamWriter;
        String saveFile = cmd.getOptionValue('s');
        if (saveFile == null) {
            outputStreamWriter = new OutputStreamWriter(System.out);
        } else {
            outputStreamWriter = new OutputStreamWriter(new FileOutputStream(saveFile));
        }
        Writer writer = new BufferedWriter(outputStreamWriter);
        for (Document unknown : unknowns) {
            writer.append(unknown.getFormattedResult(analysisDriver));
        }
        writer.append('\n');
    }
}

From source file:Main.java

/**
 * Write the provided String, line by line, in the provided OutputStream.
 *///from   ww  w  . ja va 2 s  .  co  m
private static void writeStream(String toWrite, OutputStream out) throws IOException {
    BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(out));
    BufferedReader reader = new BufferedReader(new StringReader(toWrite));
    for (String line = reader.readLine(); line != null; line = reader.readLine()) {
        writer.write(line);
    }
    reader.close();
    writer.close();
}