Example usage for java.io BufferedReader close

List of usage examples for java.io BufferedReader close

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Introduction

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

Prototype

public void close() throws IOException

Source Link

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    BufferedReader br = new BufferedReader(new FileReader("in.txt"));
    BufferedWriter bw = new BufferedWriter(new FileWriter("out.txt"));
    int i;/*from  w  ww. j a  v a2 s.  c o m*/
    do {
        i = br.read();
        if (i != -1) {
            if (Character.isLowerCase((char) i))
                bw.write(Character.toUpperCase((char) i));
            else if (Character.isUpperCase((char) i))
                bw.write(Character.toLowerCase((char) i));
            else
                bw.write((char) i);
        }
    } while (i != -1);
    br.close();
    bw.close();
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    String hostname = "localhost";

    Socket theSocket = new Socket(hostname, 7);
    BufferedReader networkIn = new BufferedReader(new InputStreamReader(theSocket.getInputStream()));
    BufferedReader userIn = new BufferedReader(new InputStreamReader(System.in));
    PrintWriter out = new PrintWriter(theSocket.getOutputStream());
    System.out.println("Connected to echo server");

    while (true) {
        String theLine = userIn.readLine();
        if (theLine.equals("."))
            break;
        out.println(theLine);/*from www. ja v a2s .c o m*/
        out.flush();
        System.out.println(networkIn.readLine());
    }
    networkIn.close();
    out.close();
}

From source file:FileList.java

public static void main(String[] args) {
    final int assumedLineLength = 50;
    File file = new File(args[0]);
    List<String> fileList = new ArrayList<String>((int) (file.length() / assumedLineLength) * 2);
    BufferedReader reader = null;
    int lineCount = 0;
    try {// w w w  . j a  va 2s.c  o  m
        reader = new BufferedReader(new FileReader(file));
        for (String line = reader.readLine(); line != null; line = reader.readLine()) {
            fileList.add(line);
            lineCount++;
        }
    } catch (IOException e) {
        System.err.format("Could not read %s: %s%n", file, e);
        System.exit(1);
    } finally {
        if (reader != null) {
            try {
                reader.close();
            } catch (IOException e) {
            }
        }
    }
    int repeats = Integer.parseInt(args[1]);
    Random random = new Random();
    for (int i = 0; i < repeats; i++) {
        System.out.format("%d: %s%n", i, fileList.get(random.nextInt(lineCount - 1)));
    }
}

From source file:edu.harvard.hul.ois.fits.clients.FormFileUploaderClientApplication.java

/**
 * Run the program./*from   ww w. ja v a2 s  .  c  om*/
 *
 * @param args First argument is path to the file to analyze; second (optional) is path to server for overriding default value.
 */
public static void main(String[] args) {
    // takes file path from first program's argument
    if (args.length < 1) {
        logger.error("****** Path to input file must be first argument to program! *******");
        logger.error("===== Exiting Program =====");
        System.exit(1);
    }

    String filePath = args[0];
    File uploadFile = new File(filePath);
    if (!uploadFile.exists()) {
        logger.error("****** File does not exist at expected locations! *******");
        logger.error("===== Exiting Program =====");
        System.exit(1);
    }

    if (args.length > 1) {
        serverUrl = args[1];
    }

    logger.info("File to upload: " + filePath);

    CloseableHttpClient httpclient = HttpClients.createDefault();
    try {
        HttpPost httppost = new HttpPost(serverUrl + "false");
        FileBody bin = new FileBody(uploadFile);
        MultipartEntityBuilder builder = MultipartEntityBuilder.create();
        builder.addPart(FITS_FORM_FIELD_DATAFILE, bin);
        HttpEntity reqEntity = builder.build();
        httppost.setEntity(reqEntity);

        logger.info("executing request " + httppost.getRequestLine());
        CloseableHttpResponse response = httpclient.execute(httppost);
        try {
            logger.info("HTTP Response Status Line: " + response.getStatusLine());
            // Expecting a 200 Status Code
            if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
                String reason = response.getStatusLine().getReasonPhrase();
                logger.warn("Unexpected HTTP response status code:[" + response.getStatusLine().getStatusCode()
                        + "] -- Reason (if available): " + reason);
            } else {
                HttpEntity resEntity = response.getEntity();
                InputStream is = resEntity.getContent();
                BufferedReader in = new BufferedReader(new InputStreamReader(is));

                String output;
                StringBuilder sb = new StringBuilder();
                while ((output = in.readLine()) != null) {
                    sb.append(output);
                    sb.append(System.getProperty("line.separator"));
                }
                logger.info(sb.toString());
                in.close();
                EntityUtils.consume(resEntity);
            }
        } finally {
            response.close();
        }
    } catch (Exception e) {
        logger.error("Caught exception: " + e.getMessage(), e);
    } finally {
        try {
            httpclient.close();
        } catch (IOException e) {
            logger.warn("Exception closing HTTP client: " + e.getMessage(), e);
        }
        logger.info("DONE");
    }
}

From source file:com.lightboxtechnologies.spectrum.SequenceFileExport.java

public static void main(String[] args) throws Exception {
    final Configuration conf = new Configuration();

    final String[] otherArgs = new GenericOptionsParser(conf, args).getRemainingArgs();

    String imageID;/*from  w ww.  ja v  a 2  s.  c om*/
    String outpath;
    String friendlyname;
    final Set<String> exts = new HashSet<String>();

    if ("-f".equals(otherArgs[0])) {
        if (otherArgs.length != 4) {
            die();
        }

        // load extensions from file
        final Path extpath = new Path(otherArgs[1]);

        InputStream in = null;
        try {
            in = extpath.getFileSystem(conf).open(extpath);

            Reader r = null;
            try {
                r = new InputStreamReader(in);

                BufferedReader br = null;
                try {
                    br = new BufferedReader(r);

                    String line;
                    while ((line = br.readLine()) != null) {
                        exts.add(line.trim().toLowerCase());
                    }

                    br.close();
                } finally {
                    IOUtils.closeQuietly(br);
                }

                r.close();
            } finally {
                IOUtils.closeQuietly(r);
            }

            in.close();
        } finally {
            IOUtils.closeQuietly(in);
        }

        imageID = otherArgs[2];
        friendlyname = otherArgs[3];
        outpath = otherArgs[4];
    } else {
        if (otherArgs.length < 3) {
            die();
        }

        // read extensions from trailing args
        imageID = otherArgs[0];
        friendlyname = otherArgs[1];
        outpath = otherArgs[2];

        // lowercase all file extensions
        for (int i = 2; i < otherArgs.length; ++i) {
            exts.add(otherArgs[i].toLowerCase());
        }
    }

    conf.setStrings("extensions", exts.toArray(new String[exts.size()]));

    final Job job = SKJobFactory.createJobFromConf(imageID, friendlyname, "SequenceFileExport", conf);
    job.setJarByClass(SequenceFileExport.class);
    job.setMapperClass(SequenceFileExportMapper.class);
    job.setNumReduceTasks(0);

    job.setOutputKeyClass(BytesWritable.class);
    job.setOutputValueClass(MapWritable.class);

    job.setInputFormatClass(FsEntryHBaseInputFormat.class);
    FsEntryHBaseInputFormat.setupJob(job, imageID);

    job.setOutputFormatClass(SequenceFileOutputFormat.class);
    SequenceFileOutputFormat.setOutputCompressionType(job, SequenceFile.CompressionType.BLOCK);

    FileOutputFormat.setOutputPath(job, new Path(outpath));
    System.exit(job.waitForCompletion(true) ? 0 : 1);
}

From source file:UseConverters.java

public static void main(String[] args) {
    try {/*from  w  w w  . jav a 2s  .  c  o  m*/
        BufferedReader fromKanji = new BufferedReader(
                new InputStreamReader(new FileInputStream("kanji.txt"), "EUC_JP"));
        PrintWriter toSwedish = new PrintWriter(new OutputStreamWriter( // XXX
                // check
                // enco
                new FileOutputStream("sverige.txt"), "ISO8859_3"));

        // reading and writing here...
        String line = fromKanji.readLine();
        System.out.println("-->" + line + "<--");
        toSwedish.println(line);
        fromKanji.close();
        toSwedish.close();
    } catch (UnsupportedEncodingException exc) {
        System.err.println("Bad encoding" + exc);
        return;
    } catch (IOException err) {
        System.err.println("I/O Error: " + err);
        return;
    }
}

From source file:SequentialPersonalizedPageRank.java

@SuppressWarnings({ "static-access" })
public static void main(String[] args) throws IOException {
    Options options = new Options();

    options.addOption(OptionBuilder.withArgName("path").hasArg().withDescription("input path").create(INPUT));
    options.addOption(//w  w  w  .  j a  v  a2 s .  c o m
            OptionBuilder.withArgName("val").hasArg().withDescription("random jump factor").create(JUMP));
    options.addOption(OptionBuilder.withArgName("node").hasArg()
            .withDescription("source node (i.e., destination of the random jump)").create(SOURCE));

    CommandLine cmdline = null;
    CommandLineParser parser = new GnuParser();

    try {
        cmdline = parser.parse(options, args);
    } catch (ParseException exp) {
        System.err.println("Error parsing command line: " + exp.getMessage());
        System.exit(-1);
    }

    if (!cmdline.hasOption(INPUT) || !cmdline.hasOption(SOURCE)) {
        System.out.println("args: " + Arrays.toString(args));
        HelpFormatter formatter = new HelpFormatter();
        formatter.setWidth(120);
        formatter.printHelp(SequentialPersonalizedPageRank.class.getName(), options);
        ToolRunner.printGenericCommandUsage(System.out);
        System.exit(-1);
    }

    String infile = cmdline.getOptionValue(INPUT);
    final String source = cmdline.getOptionValue(SOURCE);
    float alpha = cmdline.hasOption(JUMP) ? Float.parseFloat(cmdline.getOptionValue(JUMP)) : 0.15f;

    int edgeCnt = 0;
    DirectedSparseGraph<String, Integer> graph = new DirectedSparseGraph<String, Integer>();

    BufferedReader data = new BufferedReader(new InputStreamReader(new FileInputStream(infile)));

    String line;
    while ((line = data.readLine()) != null) {
        line.trim();
        String[] arr = line.split("\\t");

        for (int i = 1; i < arr.length; i++) {
            graph.addEdge(new Integer(edgeCnt++), arr[0], arr[i]);
        }
    }

    data.close();

    if (!graph.containsVertex(source)) {
        System.err.println("Error: source node not found in the graph!");
        System.exit(-1);
    }

    WeakComponentClusterer<String, Integer> clusterer = new WeakComponentClusterer<String, Integer>();

    Set<Set<String>> components = clusterer.transform(graph);
    int numComponents = components.size();
    System.out.println("Number of components: " + numComponents);
    System.out.println("Number of edges: " + graph.getEdgeCount());
    System.out.println("Number of nodes: " + graph.getVertexCount());
    System.out.println("Random jump factor: " + alpha);

    // Compute personalized PageRank.
    PageRankWithPriors<String, Integer> ranker = new PageRankWithPriors<String, Integer>(graph,
            new Transformer<String, Double>() {
                @Override
                public Double transform(String vertex) {
                    return vertex.equals(source) ? 1.0 : 0;
                }
            }, alpha);

    ranker.evaluate();

    // Use priority queue to sort vertices by PageRank values.
    PriorityQueue<Ranking<String>> q = new PriorityQueue<Ranking<String>>();
    int i = 0;
    for (String pmid : graph.getVertices()) {
        q.add(new Ranking<String>(i++, ranker.getVertexScore(pmid), pmid));
    }

    // Print PageRank values.
    System.out.println("\nPageRank of nodes, in descending order:");
    Ranking<String> r = null;
    while ((r = q.poll()) != null) {
        System.out.println(r.rankScore + "\t" + r.getRanked());
    }
}

From source file:edu.umd.shrawanraina.SequentialPersonalizedPageRank.java

@SuppressWarnings({ "static-access" })
public static void main(String[] args) throws IOException {
    Options options = new Options();

    options.addOption(OptionBuilder.withArgName("path").hasArg().withDescription("input path").create(INPUT));
    options.addOption(//from  w w  w  .j a  v a 2 s.  c  o  m
            OptionBuilder.withArgName("val").hasArg().withDescription("random jump factor").create(JUMP));
    options.addOption(OptionBuilder.withArgName("node").hasArg()
            .withDescription("source node (i.e., destination of the random jump)").create(SOURCE));

    CommandLine cmdline = null;
    CommandLineParser parser = new GnuParser();

    try {
        cmdline = parser.parse(options, args);
    } catch (ParseException exp) {
        System.err.println("Error parsing command line: " + exp.getMessage());
        System.exit(-1);
    }

    if (!cmdline.hasOption(INPUT) || !cmdline.hasOption(SOURCE)) {
        System.out.println("args: " + Arrays.toString(args));
        HelpFormatter formatter = new HelpFormatter();
        formatter.setWidth(120);
        formatter.printHelp(SequentialPersonalizedPageRank.class.getName(), options);
        ToolRunner.printGenericCommandUsage(System.out);
        System.exit(-1);
    }

    String infile = cmdline.getOptionValue(INPUT);
    final String source = cmdline.getOptionValue(SOURCE);
    float alpha = cmdline.hasOption(JUMP) ? Float.parseFloat(cmdline.getOptionValue(JUMP)) : 0.15f;

    int edgeCnt = 0;
    DirectedSparseGraph<String, Integer> graph = new DirectedSparseGraph<String, Integer>();

    BufferedReader data = new BufferedReader(new InputStreamReader(new FileInputStream(infile)));

    String line;
    while ((line = data.readLine()) != null) {
        line.trim();
        String[] arr = line.split("\\t");

        for (int i = 1; i < arr.length; i++) {
            graph.addEdge(new Integer(edgeCnt++), arr[0], arr[i]);
        }
    }

    data.close();

    if (!graph.containsVertex(source)) {
        System.err.println("Error: source node not found in the graph!");
        System.exit(-1);
    }

    WeakComponentClusterer<String, Integer> clusterer = new WeakComponentClusterer<String, Integer>();

    Set<Set<String>> components = clusterer.transform(graph);
    int numComponents = components.size();
    System.out.println("Number of components: " + numComponents);
    System.out.println("Number of edges: " + graph.getEdgeCount());
    System.out.println("Number of nodes: " + graph.getVertexCount());
    System.out.println("Random jump factor: " + alpha);

    // Compute personalized PageRank.
    PageRankWithPriors<String, Integer> ranker = new PageRankWithPriors<String, Integer>(graph,
            new Transformer<String, Double>() {
                public Double transform(String vertex) {
                    return vertex.equals(source) ? 1.0 : 0;
                }
            }, alpha);

    ranker.evaluate();

    // Use priority queue to sort vertices by PageRank values.
    PriorityQueue<Ranking<String>> q = new PriorityQueue<Ranking<String>>();
    int i = 0;
    for (String pmid : graph.getVertices()) {
        q.add(new Ranking<String>(i++, ranker.getVertexScore(pmid), pmid));
    }

    // Print PageRank values.
    System.out.println("\nPageRank of nodes, in descending order:");
    Ranking<String> r = null;
    while ((r = q.poll()) != null) {
        System.out.println(r.rankScore + "\t" + r.getRanked());
    }
}

From source file:edu.umd.cloud9.demo.DemoPackJSON.java

/**
 * Runs the demo.//  w  w w  .java2s  . c o  m
 */
public static void main(String[] args) throws IOException, JSONException {
    if (args.length != 2) {
        System.out.println("usage: [input] [output]");
        System.exit(-1);
    }

    String infile = args[0];
    String outfile = args[1];

    sLogger.info("input: " + infile);
    sLogger.info("output: " + outfile);

    Configuration conf = new JobConf();
    FileSystem fs = FileSystem.get(conf);
    SequenceFile.Writer writer = SequenceFile.createWriter(fs, conf, new Path(outfile), LongWritable.class,
            JSONObjectWritable.class);

    // read in raw text records, line separated
    BufferedReader data = new BufferedReader(new InputStreamReader(new FileInputStream(infile)));

    // the key
    LongWritable l = new LongWritable();
    JSONObjectWritable json = new JSONObjectWritable();
    long cnt = 0;

    String line;
    while ((line = data.readLine()) != null) {
        // write the record
        json.clear();
        json.put("text", line);
        l.set(cnt);
        writer.append(l, json);

        cnt++;
    }

    data.close();
    writer.close();

    sLogger.info("Wrote " + cnt + " records.");
}

From source file:org.wso2.charon3.samples.group.sample01.CreateGroupSample.java

public static void main(String[] args) {
    try {//  ww  w .ja va  2 s. c o  m
        String url = "http://localhost:8080/scim/v2/Groups";
        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        // Setting basic post request
        con.setRequestMethod("POST");
        con.setRequestProperty("Content-Type", "application/scim+json");

        // Send post request
        con.setDoOutput(true);
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(createRequestBody);
        wr.flush();
        wr.close();

        int responseCode = con.getResponseCode();

        BufferedReader in;
        if (responseCode == HttpURLConnection.HTTP_CREATED) { // success
            in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        } else {
            in = new BufferedReader(new InputStreamReader(con.getErrorStream()));
        }
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        //printing result from response
        System.out.println("Response Code : " + responseCode);
        System.out.println("Response Message : " + con.getResponseMessage());
        System.out.println("Response Content : " + response.toString());

    } catch (ProtocolException e) {
        e.printStackTrace();
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}