Example usage for java.util Iterator next

List of usage examples for java.util Iterator next

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Introduction

In this page you can find the example usage for java.util Iterator next.

Prototype

E next();

Source Link

Document

Returns the next element in the iteration.

Usage

From source file:id3Crawler.java

public static void main(String[] args) throws IOException {

    //Input for the directory to be searched.
    System.out.println("Please enter a directory: ");
    Scanner scanner = new Scanner(System.in);
    String input = scanner.nextLine();

    //Start a timer to calculate runtime
    startTime = System.currentTimeMillis();

    System.out.println("Starting scan...");

    //Files for output
    PrintWriter pw1 = new PrintWriter(new FileWriter("C:/Users/gbob3_000/Desktop/id3CrawlerOutput/Song.txt"));
    PrintWriter pw2 = new PrintWriter(new FileWriter("C:/Users/gbob3_000/Desktop/id3CrawlerOutput/Artist.txt"));
    PrintWriter pw3 = new PrintWriter(new FileWriter("C:/Users/gbob3_000/Desktop/id3CrawlerOutput/Album.txt"));
    PrintWriter pw4 = new PrintWriter(
            new FileWriter("C:/Users/gbob3_000/Desktop/id3CrawlerOutput/PerformedBy.txt"));
    PrintWriter pw5 = new PrintWriter(
            new FileWriter("C:/Users/gbob3_000/Desktop/id3CrawlerOutput/TrackOf.txt"));
    PrintWriter pw6 = new PrintWriter(
            new FileWriter("C:/Users/gbob3_000/Desktop/id3CrawlerOutput/CreatedBy.txt"));

    //This is used for creating IDs for artists, songs, albums.
    int idCounter = 0;

    //This is used to prevent duplicate artists
    String previousArtist = " ";
    String currentArtist;/*from  w ww  .j  a  v a  2 s  .  co  m*/
    int artistID = 0;

    //This is used to prevent duplicate albums
    String previousAlbum = " ";
    String currentAlbum;
    int albumID = 0;

    //This array holds valid extensions to iterate through
    String[] extensions = new String[] { "mp3" };

    //iterate through all files in a directory
    Iterator<File> it = FileUtils.iterateFiles(new File(input), extensions, true);
    while (it.hasNext()) {

        //open the next file
        File file = it.next();

        //instantiate an mp3file object with the opened file
        MP3 song = GetMP3(file);

        //pass the song through SongInfo and return the required information
        SongInfo info = new SongInfo(song);

        //This is used to prevent duplicate artists/albums
        currentArtist = info.getArtistInfo();
        currentAlbum = info.getAlbumInfo();

        //Append the song information to the end of a text file
        pw1.println(idCounter + "\t" + info.getTitleInfo());

        //This prevents duplicates of artists
        if (!(currentArtist.equals(previousArtist))) {
            pw2.println(idCounter + "\t" + info.getArtistInfo());
            previousArtist = currentArtist;
            artistID = idCounter;
        }

        //This prevents duplicates of albums
        if (!(currentAlbum.equals(previousAlbum))) {
            pw3.println(idCounter + "\t" + info.getAlbumInfo());
            previousAlbum = currentAlbum;
            albumID = idCounter;

            //This formats the IDs for a "CreatedBy" relationship table
            pw6.println(artistID + "\t" + albumID);
        }

        //This formats the IDs for a "PerformedBy" relationship table
        pw4.println(idCounter + "\t" + artistID);

        //This formats the IDs for a "TrackOf" relationship table
        pw5.println(idCounter + "\t" + albumID);

        idCounter++;
        songCounter++;

    }
    scanner.close();
    pw1.close();
    pw2.close();
    pw3.close();
    pw4.close();
    pw5.close();
    pw6.close();

    System.out.println("Scan took " + ((System.currentTimeMillis() - startTime) / 1000.0) + " seconds to scan "
            + songCounter + " items!");

}

From source file:com.glaf.core.util.JsonUtils.java

public static void main(String[] args) throws Exception {
    Map<String, Object> dataMap = new java.util.HashMap<String, Object>();
    dataMap.put("key01", "");
    dataMap.put("key02", 12345);
    dataMap.put("key03", 789.85D);
    dataMap.put("date", new Date());
    Collection<Object> actorIds = new HashSet<Object>();
    actorIds.add("sales01");
    actorIds.add("sales02");
    actorIds.add("sales03");
    actorIds.add("sales04");
    actorIds.add("sales05");
    dataMap.put("actorIds", actorIds.toArray());
    dataMap.put("x_sale_actor_actorIds", actorIds);

    Map<String, Object> xxxMap = new java.util.HashMap<String, Object>();
    xxxMap.put("0", "--------");
    xxxMap.put("1", "?");
    xxxMap.put("2", "");
    xxxMap.put("3", "");

    dataMap.put("trans", xxxMap);

    String str = JsonUtils.encode(dataMap);
    System.out.println(str);// w ww.j a  v a 2  s.  c o m
    Map<?, ?> p = JsonUtils.decode(str);
    System.out.println(p);
    System.out.println(p.get("date").getClass().getName());

    String xx = "{name:\"trans\",nodeType:\"select\",children:{\"1\":\"?\",\"3\":\"\",\"2\":\"\",\"0\":\"--------\"}}";
    Map<String, Object> xMap = JsonUtils.decode(xx);
    System.out.println(xMap);
    Set<Entry<String, Object>> entrySet = xMap.entrySet();
    for (Entry<String, Object> entry : entrySet) {
        String key = entry.getKey();
        Object value = entry.getValue();
        System.out.println(key + " = " + value);
        System.out.println(key.getClass().getName() + "  " + value.getClass().getName());
        if (value instanceof JSONObject) {
            JSONObject json = (JSONObject) value;
            Iterator<?> iter = json.keySet().iterator();
            while (iter.hasNext()) {
                String kk = (String) iter.next();
                System.out.println(kk + " = " + json.get(kk));
            }
        }
    }
}

From source file:ProducerTool.java

public static void main(String[] args) {
    ArrayList<ProducerTool> threads = new ArrayList();
    ProducerTool producerTool = new ProducerTool();
    String[] unknown = CommandLineSupport.setOptions(producerTool, args);
    if (unknown.length > 0) {
        System.out.println("Unknown options: " + Arrays.toString(unknown));
        System.exit(-1);/*from www  .  j av a2s  .  c om*/
    }
    producerTool.showParameters();
    for (int threadCount = 1; threadCount <= parallelThreads; threadCount++) {
        producerTool = new ProducerTool();
        CommandLineSupport.setOptions(producerTool, args);
        producerTool.start();
        threads.add(producerTool);
    }

    while (true) {
        Iterator<ProducerTool> itr = threads.iterator();
        int running = 0;
        while (itr.hasNext()) {
            ProducerTool thread = itr.next();
            if (thread.isAlive()) {
                running++;
            }
        }
        if (running <= 0) {
            System.out.println("All threads completed their work");
            break;
        }
        try {
            Thread.sleep(1000);
        } catch (Exception e) {
        }
    }
}

From source file:net.padaf.xmpbox.parser.XMLValueTypeDescriptionManager.java

/**
 * Sample of using to write/read information
 * /*  www  .  j a  va  2  s. c  o  m*/
 * @param args
 *            not used
 * @throws BuildPDFAExtensionSchemaDescriptionException
 *             When errors during building/reading xml file
 */
public static void main(String[] args) throws BuildPDFAExtensionSchemaDescriptionException {
    XMLValueTypeDescriptionManager vtMaker = new XMLValueTypeDescriptionManager();

    // add Descriptions
    for (int i = 0; i < 3; i++) {
        vtMaker.addValueTypeDescription("testType" + i, "nsURI" + i, "prefix" + i, "description" + i);

    }
    List<FieldDescription> fieldSample = new ArrayList<FieldDescription>();
    for (int i = 0; i < 2; i++) {
        fieldSample.add(new FieldDescription("fieldName" + i, "valueType" + i, "description" + i));
    }
    vtMaker.addValueTypeDescription("testTypeField", "http://test.withfield.com/vt/", "prefTest",
            " value type description", fieldSample);

    // Display XML conversion
    System.out.println("Display XML Result:");
    vtMaker.toXML(System.out);

    // Sample to show how to build object from XML file
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    vtMaker.toXML(bos);
    IOUtils.closeQuietly(bos);

    // emulate a new reading
    InputStream is = new ByteArrayInputStream(bos.toByteArray());
    vtMaker = new XMLValueTypeDescriptionManager();
    vtMaker.loadListFromXML(is);
    List<ValueTypeDescription> result = vtMaker.getValueTypesDescriptionList();
    System.out.println();
    System.out.println();
    System.out.println("Result of XML Loading :");
    for (ValueTypeDescription propertyDescription : result) {
        System.out.println(propertyDescription.getType() + " :" + propertyDescription.getDescription());
        if (propertyDescription.getFields() != null) {
            Iterator<FieldDescription> fit = propertyDescription.getFields().iterator();
            FieldDescription field;
            while (fit.hasNext()) {
                field = fit.next();
                System.out.println("Field " + field.getName() + " :" + field.getValueType());
            }
        }
    }

}

From source file:com.adobe.aem.demomachine.Json2Csv.java

public static void main(String[] args) throws IOException {

    String inputFile1 = null;//from w  ww. j  a  v  a 2  s  .  c o  m
    String inputFile2 = null;
    String outputFile = null;

    HashMap<String, String> hmReportSuites = new HashMap<String, String>();

    // Command line options for this tool
    Options options = new Options();
    options.addOption("c", true, "Filename 1");
    options.addOption("r", true, "Filename 2");
    options.addOption("o", true, "Filename 3");
    CommandLineParser parser = new BasicParser();
    try {
        CommandLine cmd = parser.parse(options, args);

        if (cmd.hasOption("c")) {
            inputFile1 = cmd.getOptionValue("c");
        }

        if (cmd.hasOption("r")) {
            inputFile2 = cmd.getOptionValue("r");
        }

        if (cmd.hasOption("o")) {
            outputFile = cmd.getOptionValue("o");
        }

        if (inputFile1 == null || inputFile1 == null || outputFile == null) {
            System.exit(-1);
        }

    } catch (ParseException ex) {

        logger.error(ex.getMessage());

    }

    // List of customers and report suites for these customers
    String sInputFile1 = readFile(inputFile1, Charset.defaultCharset());
    sInputFile1 = sInputFile1.replaceAll("ObjectId\\(\"([0-9a-z]*)\"\\)", "\"$1\"");

    // Processing the list of report suites for each customer
    try {

        JSONArray jCustomers = new JSONArray(sInputFile1.trim());
        for (int i = 0, size = jCustomers.length(); i < size; i++) {
            JSONObject jCustomer = jCustomers.getJSONObject(i);
            Iterator<?> keys = jCustomer.keys();
            String companyName = null;
            while (keys.hasNext()) {
                String key = (String) keys.next();
                if (key.equals("company")) {
                    companyName = jCustomer.getString(key);
                }
            }
            keys = jCustomer.keys();
            while (keys.hasNext()) {
                String key = (String) keys.next();

                if (key.equals("report_suites")) {
                    JSONArray jReportSuites = jCustomer.getJSONArray(key);
                    for (int j = 0, rSize = jReportSuites.length(); j < rSize; j++) {
                        hmReportSuites.put(jReportSuites.getString(j), companyName);
                        System.out.println(jReportSuites.get(j) + " for company " + companyName);
                    }

                }
            }
        }

        // Creating the out put file
        PrintWriter writer = new PrintWriter(outputFile, "UTF-8");
        writer.println("\"" + "Customer" + "\",\"" + "ReportSuite ID" + "\",\"" + "Number of Documents"
                + "\",\"" + "Last Updated" + "\"");

        // Processing the list of SOLR collections
        String sInputFile2 = readFile(inputFile2, Charset.defaultCharset());
        sInputFile2 = sInputFile2.replaceAll("NumberLong\\(\"([0-9a-z]*)\"\\)", "\"$1\"");

        JSONObject jResults = new JSONObject(sInputFile2.trim());
        JSONArray jCollections = jResults.getJSONArray("result");
        for (int i = 0, size = jCollections.length(); i < size; i++) {
            JSONObject jCollection = jCollections.getJSONObject(i);
            String id = null;
            String number = null;
            String lastupdate = null;

            Iterator<?> keys = jCollection.keys();
            while (keys.hasNext()) {
                String key = (String) keys.next();
                if (key.equals("_id")) {
                    id = jCollection.getString(key);
                }
            }

            keys = jCollection.keys();
            while (keys.hasNext()) {
                String key = (String) keys.next();
                if (key.equals("noOfDocs")) {
                    number = jCollection.getString(key);
                }
            }

            keys = jCollection.keys();
            while (keys.hasNext()) {
                String key = (String) keys.next();
                if (key.equals("latestUpdateDate")) {
                    lastupdate = jCollection.getString(key);
                }
            }

            Date d = new Date(Long.parseLong(lastupdate));
            System.out.println(hmReportSuites.get(id) + "," + id + "," + number + "," + lastupdate + ","
                    + new SimpleDateFormat("MM-dd-yyyy").format(d));
            writer.println("\"" + hmReportSuites.get(id) + "\",\"" + id + "\",\"" + number + "\",\""
                    + new SimpleDateFormat("MM-dd-yyyy").format(d) + "\"");

        }

        writer.close();

    } catch (JSONException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

From source file:edu.umd.cloud9.example.bigram.AnalyzeBigramRelativeFrequencyJson.java

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

    options.addOption(OptionBuilder.withArgName("path").hasArg().withDescription("input path").create(INPUT));

    CommandLine cmdline = null;/*from w  w w.  j  a v  a 2 s  .  c o m*/
    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)) {
        System.out.println("args: " + Arrays.toString(args));
        HelpFormatter formatter = new HelpFormatter();
        formatter.setWidth(120);
        formatter.printHelp(AnalyzeBigramRelativeFrequencyJson.class.getName(), options);
        ToolRunner.printGenericCommandUsage(System.out);
        System.exit(-1);
    }

    String inputPath = cmdline.getOptionValue(INPUT);
    System.out.println("input path: " + inputPath);

    List<PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable>> pairs = SequenceFileUtils
            .readDirectory(new Path(inputPath));

    List<PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable>> list1 = Lists.newArrayList();
    List<PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable>> list2 = Lists.newArrayList();

    for (PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable> p : pairs) {
        BigramRelativeFrequencyJson.MyTuple bigram = p.getLeftElement();

        if (bigram.getJsonObject().get("Left").getAsString().equals("light")) {
            list1.add(p);
        }

        if (bigram.getJsonObject().get("Left").getAsString().equals("contain")) {
            list2.add(p);
        }
    }

    Collections.sort(list1,
            new Comparator<PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable>>() {
                public int compare(PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable> e1,
                        PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable> e2) {
                    if (e1.getRightElement().compareTo(e2.getRightElement()) == 0) {
                        return e1.getLeftElement().compareTo(e2.getLeftElement());
                    }

                    return e2.getRightElement().compareTo(e1.getRightElement());
                }
            });

    Iterator<PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable>> iter1 = Iterators
            .limit(list1.iterator(), 10);
    while (iter1.hasNext()) {
        PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable> p = iter1.next();
        BigramRelativeFrequencyJson.MyTuple bigram = p.getLeftElement();
        System.out.println(bigram + "\t" + p.getRightElement());
    }

    Collections.sort(list2,
            new Comparator<PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable>>() {
                public int compare(PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable> e1,
                        PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable> e2) {
                    if (e1.getRightElement().compareTo(e2.getRightElement()) == 0) {
                        return e1.getLeftElement().compareTo(e2.getLeftElement());
                    }

                    return e2.getRightElement().compareTo(e1.getRightElement());
                }
            });

    Iterator<PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable>> iter2 = Iterators
            .limit(list2.iterator(), 10);
    while (iter2.hasNext()) {
        PairOfWritables<BigramRelativeFrequencyJson.MyTuple, FloatWritable> p = iter2.next();
        BigramRelativeFrequencyJson.MyTuple bigram = p.getLeftElement();
        System.out.println(bigram + "\t" + p.getRightElement());
    }
}

From source file:cosmos.example.BuildingPermitsExample.java

public static void main(String[] args) throws Exception {
    BuildingPermitsExample example = new BuildingPermitsExample();
    new JCommander(example, args);

    File inputFile = new File(example.fileName);

    Preconditions.checkArgument(inputFile.exists() && inputFile.isFile() && inputFile.canRead(),
            "Expected " + example.fileName + " to be a readable file");

    String zookeepers;/*from w ww . jav  a 2s . co m*/
    String instanceName;
    Connector connector;
    MiniAccumuloCluster mac = null;
    File macDir = null;

    // Use the MiniAccumuloCluster is requested
    if (example.useMiniAccumuloCluster) {
        macDir = Files.createTempDir();
        String password = "password";
        MiniAccumuloConfig config = new MiniAccumuloConfig(macDir, password);
        config.setNumTservers(1);

        mac = new MiniAccumuloCluster(config);
        mac.start();

        zookeepers = mac.getZooKeepers();
        instanceName = mac.getInstanceName();

        ZooKeeperInstance instance = new ZooKeeperInstance(instanceName, zookeepers);
        connector = instance.getConnector("root", new PasswordToken(password));
    } else {
        // Otherwise connect to a running instance
        zookeepers = example.zookeepers;
        instanceName = example.instanceName;

        ZooKeeperInstance instance = new ZooKeeperInstance(instanceName, zookeepers);
        connector = instance.getConnector(example.username, new PasswordToken(example.password));
    }

    // Instantiate an instance of Cosmos
    Cosmos cosmos = new CosmosImpl(zookeepers);

    // Create a definition for the data we want to load
    Store id = Store.create(connector, new Authorizations(), AscendingIndexIdentitySet.create());

    // Register the definition with Cosmos so it can track its progress.
    cosmos.register(id);

    // Load all of the data from our inputFile
    LoadBuildingPermits loader = new LoadBuildingPermits(cosmos, id, inputFile);
    loader.run();

    // Finalize the SortableResult which will prevent future writes to the data set
    cosmos.finalize(id);

    // Flush the ingest traces to the backend so we can see the results;
    id.sendTraces();

    // Get back the Set of Columns that we've ingested.
    Set<Column> schema = Sets.newHashSet(cosmos.columns(id));

    log.debug("\nColumns: " + schema);

    Iterator<Column> iter = schema.iterator();
    while (iter.hasNext()) {
        Column c = iter.next();
        // Remove the internal ID field and columns that begin with CONTRACTOR_
        if (c.equals(LoadBuildingPermits.ID) || c.name().startsWith("CONTRACTOR_")) {
            iter.remove();
        }
    }

    Iterable<Index> indices = Iterables.transform(schema, new Function<Column, Index>() {

        @Override
        public Index apply(Column col) {
            return Index.define(col);
        }

    });

    // Ensure that we have locality groups set as we expect
    log.info("Ensure locality groups are set");
    id.optimizeIndices(indices);

    // Compact down the data for this SortableResult    
    log.info("Issuing compaction for relevant data");
    id.consolidate();

    final int numTopValues = 10;

    // Walk through each column in the result set
    for (Column c : schema) {
        Stopwatch sw = new Stopwatch();
        sw.start();

        // Get the number of times we've seen each value in a given column
        CloseableIterable<Entry<RecordValue<?>, Long>> groupingsInColumn = cosmos.groupResults(id, c);

        log.info(c.name() + ":");

        // Iterate over the counts, collecting the top N values in each column
        TreeMap<Long, RecordValue<?>> topValues = Maps.newTreeMap();

        for (Entry<RecordValue<?>, Long> entry : groupingsInColumn) {
            if (topValues.size() == numTopValues) {
                Entry<Long, RecordValue<?>> least = topValues.pollFirstEntry();

                if (least.getKey() < entry.getValue()) {
                    topValues.put(entry.getValue(), entry.getKey());
                } else {
                    topValues.put(least.getKey(), least.getValue());
                }
            } else if (topValues.size() < numTopValues) {
                topValues.put(entry.getValue(), entry.getKey());
            }
        }

        for (Long key : topValues.descendingKeySet()) {
            log.info(topValues.get(key).value() + " occurred " + key + " times");
        }

        sw.stop();

        log.info("Took " + sw.toString() + " to run query.\n");
    }

    log.info("Deleting records");

    // Delete the records we've ingested
    if (!example.useMiniAccumuloCluster) {
        // Because I'm lazy and don't want to wait around to run the BatchDeleter when we're just going
        // to rm -rf the directory in a few secs.
        cosmos.delete(id);
    }

    // And shut down Cosmos
    cosmos.close();

    log.info("Cosmos stopped");

    // If we were using MAC, also stop that
    if (example.useMiniAccumuloCluster && null != mac) {
        mac.stop();
        if (null != macDir) {
            FileUtils.deleteDirectory(macDir);
        }
    }
}

From source file:importer.handler.post.stages.Splitter.java

/** test and commandline utility */
public static void main(String[] args) {
    if (args.length >= 1) {
        try {//from  w w w .java 2 s  . c  o  m
            int i = 0;
            int fileIndex = 0;
            // see if the user supplied a conf file
            String textConf = Discriminator.defaultConf;
            while (i < args.length) {
                if (args[i].equals("-c") && i < args.length - 1) {
                    textConf = readConfig(args[i + 1]);
                    i += 2;
                } else {
                    fileIndex = i;
                    i++;
                }
            }
            File f = new File(args[fileIndex]);
            char[] data = new char[(int) f.length()];
            FileReader fr = new FileReader(f);
            fr.read(data);
            JSONObject config = (JSONObject) JSONValue.parse(textConf);
            Splitter split = new Splitter(config);
            Map<String, String> map = split.split(new String(data));
            Set<String> keys = map.keySet();
            String rawFileName = args[fileIndex];
            int pos = rawFileName.lastIndexOf(".");
            if (pos != -1)
                rawFileName = rawFileName.substring(0, pos);
            Iterator<String> iter = keys.iterator();
            while (iter.hasNext()) {
                String key = iter.next();
                String fName = rawFileName + "-" + key + ".xml";
                File g = new File(fName);
                if (g.exists())
                    g.delete();
                FileOutputStream fos = new FileOutputStream(g);
                fos.write(map.get(key).getBytes("UTF-8"));
                fos.close();
            }
        } catch (Exception e) {
            e.printStackTrace(System.out);
        }
    } else
        System.out.println("usage: java -jar split.jar [-c json-config] <tei-xml>\n");
}

From source file:joshelser.as2015.query.Query.java

public static void main(String[] args) throws Exception {
    JCommander commander = new JCommander();
    final Opts options = new Opts();
    commander.addObject(options);//from   w  ww .  j  a va 2  s. c  om

    commander.setProgramName("Query");
    try {
        commander.parse(args);
    } catch (ParameterException ex) {
        commander.usage();
        System.err.println(ex.getMessage());
        System.exit(1);
    }

    ClientConfiguration conf = ClientConfiguration.loadDefault();
    if (null != options.clientConfFile) {
        conf = new ClientConfiguration(new PropertiesConfiguration(options.clientConfFile));
    }
    conf.withInstance(options.instanceName).withZkHosts(options.zookeepers);

    ZooKeeperInstance inst = new ZooKeeperInstance(conf);
    Connector conn = inst.getConnector(options.user, new PasswordToken(options.password));

    BatchScanner bs = conn.createBatchScanner(options.table, Authorizations.EMPTY, 16);
    try {
        bs.setRanges(Collections.singleton(new Range()));
        final Text categoryText = new Text("category");
        bs.fetchColumn(categoryText, new Text("name"));
        bs.fetchColumn(new Text("review"), new Text("score"));
        bs.fetchColumn(new Text("review"), new Text("userId"));

        bs.addScanIterator(new IteratorSetting(50, "wri", WholeRowIterator.class));
        final Text colf = new Text();
        Map<String, List<Integer>> scoresByUser = new HashMap<>();
        for (Entry<Key, Value> entry : bs) {
            SortedMap<Key, Value> row = WholeRowIterator.decodeRow(entry.getKey(), entry.getValue());
            Iterator<Entry<Key, Value>> iter = row.entrySet().iterator();
            if (!iter.hasNext()) {
                // row was empty
                continue;
            }
            Entry<Key, Value> categoryEntry = iter.next();
            categoryEntry.getKey().getColumnFamily(colf);
            if (!colf.equals(categoryText)) {
                throw new IllegalArgumentException("Unknown!");
            }
            if (!categoryEntry.getValue().toString().equals("books")) {
                // not a book review
                continue;
            }

            if (!iter.hasNext()) {
                continue;
            }
            Entry<Key, Value> reviewScore = iter.next();
            if (!iter.hasNext()) {
                continue;
            }
            Entry<Key, Value> reviewUserId = iter.next();

            String userId = reviewUserId.getValue().toString();
            if (userId.equals("unknown")) {
                // filter unknow user id
                continue;
            }

            List<Integer> scores = scoresByUser.get(userId);
            if (null == scores) {
                scores = new ArrayList<>();
                scoresByUser.put(userId, scores);
            }
            scores.add(Float.valueOf(reviewScore.getValue().toString()).intValue());
        }

        for (Entry<String, List<Integer>> entry : scoresByUser.entrySet()) {
            int sum = 0;
            for (Integer val : entry.getValue()) {
                sum += val;
            }

            System.out.println(entry.getKey() + " => " + new Float(sum) / entry.getValue().size());
        }
    } finally {
        bs.close();
    }
}

From source file:com.cloud.test.longrun.PerformanceWithAPI.java

public static void main(String[] args) {

    List<String> argsList = Arrays.asList(args);
    Iterator<String> iter = argsList.iterator();
    String host = "http://localhost";
    int numThreads = 1;

    while (iter.hasNext()) {
        String arg = iter.next();
        if (arg.equals("-h")) {
            host = "http://" + iter.next();
        }/*from  w w w. ja  va 2s . com*/
        if (arg.equals("-t")) {
            numThreads = Integer.parseInt(iter.next());
        }
        if (arg.equals("-n")) {
            numVM = Integer.parseInt(iter.next());
        }
    }

    final String server = host + ":" + _apiPort + "/";
    final String developerServer = host + ":" + _developerPort + _apiUrl;

    s_logger.info("Starting test in " + numThreads + " thread(s). Each thread is launching " + numVM + " VMs");

    for (int i = 0; i < numThreads; i++) {
        new Thread(new Runnable() {
            public void run() {
                try {

                    String username = null;
                    String singlePrivateIp = null;
                    String singlePublicIp = null;
                    Random ran = new Random();
                    username = Math.abs(ran.nextInt()) + "-user";

                    //Create User
                    User myUser = new User(username, username, server, developerServer);
                    try {
                        myUser.launchUser();
                        myUser.registerUser();
                    } catch (Exception e) {
                        s_logger.warn("Error code: ", e);
                    }

                    if (myUser.getUserId() != null) {
                        s_logger.info("User " + myUser.getUserName()
                                + " was created successfully, starting VM creation");
                        //create VMs for the user
                        for (int i = 0; i < numVM; i++) {
                            //Create a new VM, add it to the list of user's VMs
                            VirtualMachine myVM = new VirtualMachine(myUser.getUserId());
                            myVM.deployVM(_zoneId, _serviceOfferingId, _templateId, myUser.getDeveloperServer(),
                                    myUser.getApiKey(), myUser.getSecretKey());
                            myUser.getVirtualMachines().add(myVM);
                            singlePrivateIp = myVM.getPrivateIp();

                            if (singlePrivateIp != null) {
                                s_logger.info(
                                        "VM with private Ip " + singlePrivateIp + " was successfully created");
                            } else {
                                s_logger.info("Problems with VM creation for a user" + myUser.getUserName());
                                break;
                            }

                            //get public IP address for the User            
                            myUser.retrievePublicIp(_zoneId);
                            singlePublicIp = myUser.getPublicIp().get(myUser.getPublicIp().size() - 1);
                            if (singlePublicIp != null) {
                                s_logger.info("Successfully got public Ip " + singlePublicIp + " for user "
                                        + myUser.getUserName());
                            } else {
                                s_logger.info("Problems with getting public Ip address for user"
                                        + myUser.getUserName());
                                break;
                            }

                            //create ForwardProxy rules for user's VMs
                            int responseCode = CreateForwardingRule(myUser, singlePrivateIp, singlePublicIp,
                                    "22", "22");
                            if (responseCode == 500)
                                break;
                        }

                        s_logger.info("Deployment successful..." + numVM
                                + " VMs were created. Waiting for 5 min before performance test");
                        Thread.sleep(300000L); // Wait 

                        //Start performance test for the user
                        s_logger.info("Starting performance test for Guest network that has "
                                + myUser.getPublicIp().size() + " public IP addresses");
                        for (int j = 0; j < myUser.getPublicIp().size(); j++) {
                            s_logger.info("Starting test for user which has "
                                    + myUser.getVirtualMachines().size() + " vms. Public IP for the user is "
                                    + myUser.getPublicIp().get(j) + " , number of retries is " + _retry
                                    + " , private IP address of the machine is"
                                    + myUser.getVirtualMachines().get(j).getPrivateIp());
                            guestNetwork myNetwork = new guestNetwork(myUser.getPublicIp().get(j), _retry);
                            myNetwork.setVirtualMachines(myUser.getVirtualMachines());
                            new Thread(myNetwork).start();
                        }

                    }
                } catch (Exception e) {
                    s_logger.error(e);
                }
            }
        }).start();

    }
}