Example usage for java.util Map size

List of usage examples for java.util Map size

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Introduction

In this page you can find the example usage for java.util Map size.

Prototype

int size();

Source Link

Document

Returns the number of key-value mappings in this map.

Usage

From source file:de.tudarmstadt.ukp.csniper.resbuild.EvaluationItemFixer.java

public static void main(String[] args) {
    connect(HOST, DATABASE, USER, PASSWORD);

    Map<Integer, String> items = new HashMap<Integer, String>();
    Map<Integer, String> failed = new HashMap<Integer, String>();

    // fetch coveredTexts of dubious items and clean it
    PreparedStatement select = null;
    try {//www .  j  a v  a  2 s.c  o m
        StringBuilder selectQuery = new StringBuilder();
        selectQuery.append("SELECT * FROM EvaluationItem ");
        selectQuery.append("WHERE LOCATE(coveredText, '  ') > 0 ");
        selectQuery.append("OR LOCATE('" + LRB + "', coveredText) > 0 ");
        selectQuery.append("OR LOCATE('" + RRB + "', coveredText) > 0 ");
        selectQuery.append("OR LEFT(coveredText, 1) = ' ' ");
        selectQuery.append("OR RIGHT(coveredText, 1) = ' ' ");

        select = connection.prepareStatement(selectQuery.toString());
        log.info("Running query [" + selectQuery.toString() + "].");
        ResultSet rs = select.executeQuery();

        while (rs.next()) {
            int id = rs.getInt("id");
            String coveredText = rs.getString("coveredText");

            try {
                // special handling of double whitespace: in this case, re-fetch the text
                if (coveredText.contains("  ")) {
                    coveredText = retrieveCoveredText(rs.getString("collectionId"), rs.getString("documentId"),
                            rs.getInt("beginOffset"), rs.getInt("endOffset"));
                }

                // replace bracket placeholders and trim the text
                coveredText = StringUtils.replace(coveredText, LRB, "(");
                coveredText = StringUtils.replace(coveredText, RRB, ")");
                coveredText = coveredText.trim();

                items.put(id, coveredText);
            } catch (IllegalArgumentException e) {
                failed.put(id, e.getMessage());
            }
        }
    } catch (SQLException e) {
        log.error("Exception while selecting: " + e.getMessage());
    } finally {
        closeQuietly(select);
    }

    // write logs
    BufferedWriter bwf = null;
    BufferedWriter bws = null;
    try {
        bwf = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(LOG_FAILED)), "UTF-8"));
        for (Entry<Integer, String> e : failed.entrySet()) {
            bwf.write(e.getKey() + " - " + e.getValue() + "\n");
        }

        bws = new BufferedWriter(
                new OutputStreamWriter(new FileOutputStream(new File(LOG_SUCCESSFUL)), "UTF-8"));
        for (Entry<Integer, String> e : items.entrySet()) {
            bws.write(e.getKey() + " - " + e.getValue() + "\n");
        }
    } catch (IOException e) {
        log.error("Got an IOException while writing the log files.");
    } finally {
        IOUtils.closeQuietly(bwf);
        IOUtils.closeQuietly(bws);
    }

    log.info("Texts for [" + items.size() + "] items need to be cleaned up.");

    // update the dubious items with the cleaned coveredText
    PreparedStatement update = null;
    try {
        String updateQuery = "UPDATE EvaluationItem SET coveredText = ? WHERE id = ?";

        update = connection.prepareStatement(updateQuery);
        int i = 0;
        for (Entry<Integer, String> e : items.entrySet()) {
            int id = e.getKey();
            String coveredText = e.getValue();

            // update item in database
            update.setString(1, coveredText);
            update.setInt(2, id);
            update.executeUpdate();
            log.debug("Updating " + id + " with [" + coveredText + "]");

            // show percentage of updated items
            i++;
            int part = (int) Math.ceil((double) items.size() / 100);
            if (i % part == 0) {
                log.info(i / part + "% finished (" + i + "/" + items.size() + ").");
            }
        }
    } catch (SQLException e) {
        log.error("Exception while updating: " + e.getMessage());
    } finally {
        closeQuietly(update);
    }

    closeQuietly(connection);
}

From source file:com.thed.zapi.cloud.sample.CycleExecutionReportByVersion.java

public static void main(String[] args) throws JSONException, URISyntaxException, ParseException, IOException {

    String API_GET_EXECUTIONS = "{SERVER}/public/rest/api/1.0/executions/search/cycle/";
    String API_GET_CYCLES = "{SERVER}/public/rest/api/1.0/cycles/search?";
    // Delimiter used in CSV file
    final String NEW_LINE_SEPARATOR = "\n";
    final String fileName = "F:\\cycleExecutionReport.csv";

    /** Declare JIRA,Zephyr URL,access and secret Keys */
    // JIRA Cloud URL of the instance
    String jiraBaseURL = "https://demo.atlassian.net";
    // Replace zephyr baseurl <ZAPI_Cloud_URL> shared with the user for ZAPI Cloud Installation
    String zephyrBaseUrl = "<ZAPI_Cloud_URL>";
    // zephyr accessKey , we can get from Addons >> zapi section
    String accessKey = "YjE2MjdjMGEtNzExNy0zYjY1LWFkMzQtNjcwMDM3OTljFkbWluIGFkbWlu";
    // zephyr secretKey , we can get from Addons >> zapi section
    String secretKey = "qufnbimi96Ob2hq3ISF08yZ8Qw4c1eHGeGlk";

    /** Declare parameter values here */
    String userName = "admin";
    String versionId = "-1";
    String projectId = "10100";
    String projectName = "Support";
    String versionName = "Unscheduled";

    ZFJCloudRestClient client = ZFJCloudRestClient.restBuilder(zephyrBaseUrl, accessKey, secretKey, userName)
            .build();// w  w w  .  ja v a 2s .  c  o  m
    /**
     * Get List of Cycles by Project and Version
     */

    final String getCyclesUri = API_GET_CYCLES.replace("{SERVER}", zephyrBaseUrl) + "projectId=" + projectId
            + "&versionId=" + versionId;

    Map<String, String> cycles = getCyclesByProjectVersion(getCyclesUri, client, accessKey);
    // System.out.println("cycles :"+ cycles.toString());

    /**
     * Iterating over the Cycles and writing the report to CSV
     * 
     */

    FileWriter fileWriter = null;
    System.out.println("Writing CSV file.....");
    try {
        fileWriter = new FileWriter(fileName);

        // Write the CSV file header

        fileWriter.append("Cycle Execution Report By Version and Project");
        fileWriter.append(NEW_LINE_SEPARATOR);
        fileWriter.append("PROJECT:" + "," + projectName);
        fileWriter.append(NEW_LINE_SEPARATOR);
        fileWriter.append("VERSION:" + "," + versionName);
        fileWriter.append(NEW_LINE_SEPARATOR);

        JSONArray executions;
        int totalUnexecutedCount = 0;
        int totalExecutionCount = 0;

        for (String key : cycles.keySet()) {
            int executionCount = 0;
            int unexecutedCount = 0;
            final String getExecutionsUri = API_GET_EXECUTIONS.replace("{SERVER}", zephyrBaseUrl) + key
                    + "?projectId=" + projectId + "&versionId=" + versionId;
            fileWriter.append("Cycle:" + "," + cycles.get(key));
            fileWriter.append(NEW_LINE_SEPARATOR);
            executions = getExecutionsByCycleId(getExecutionsUri, client, accessKey);
            // System.out.println("executions :" + executions.toString());

            HashMap<String, Integer> counter = new HashMap<String, Integer>();

            String[] statusName = new String[executions.length()];
            for (int i = 0; i < executions.length(); i++) {
                JSONObject executionObj = executions.getJSONObject(i).getJSONObject("execution");
                // System.out.println("executionObj
                // "+executionObj.toString());
                JSONObject statusObj = executionObj.getJSONObject("status");
                // System.out.println("statusObj :"+statusObj.toString());
                statusName[i] = statusObj.getString("name");
            }

            if (statusName.length != 0) {
                // System.out.println(statusName.toString());
                for (String a : statusName) {
                    if (counter.containsKey(a)) {
                        int oldValue = counter.get(a);
                        counter.put(a, oldValue + 1);
                    } else {
                        counter.put(a, 1);
                    }
                }
                for (String status : counter.keySet()) {
                    fileWriter.append(" " + "," + " " + "," + status + "," + counter.get(status));
                    fileWriter.append(NEW_LINE_SEPARATOR);
                    if (status.equalsIgnoreCase("UNEXECUTED")) {
                        unexecutedCount += counter.get(status);
                    } else {
                        executionCount += counter.get(status);
                    }

                }
            }
            totalExecutionCount += executionCount;
            totalUnexecutedCount += unexecutedCount;

            fileWriter.append(NEW_LINE_SEPARATOR);
        }

        fileWriter.append(NEW_LINE_SEPARATOR);
        fileWriter.append("TOTAL CYCLES:" + "," + cycles.size());
        fileWriter.append(NEW_LINE_SEPARATOR);
        fileWriter.append("TOTAL EXECUTIONS:" + "," + totalExecutionCount);
        fileWriter.append(NEW_LINE_SEPARATOR);
        fileWriter.append("TOTAL ASSIGNED:" + "," + (totalUnexecutedCount + totalExecutionCount));

        System.out.println("CSV file was created successfully !!!");
    } catch (Exception e) {
        System.out.println("Error in CsvFileWriter !!!");
        e.printStackTrace();
    } finally {
        try {
            fileWriter.flush();
            fileWriter.close();
        } catch (IOException e) {
            System.out.println("Error while flushing/closing fileWriter !!!");
            e.printStackTrace();
        }
    }

}

From source file:de.tudarmstadt.ukp.csniper.resbuild.EvaluationItemFixer2.java

public static void main(String[] args) {
    connect(HOST, DATABASE, USER, PASSWORD);

    Map<Integer, String> items = new HashMap<Integer, String>();
    Map<Integer, String> failed = new HashMap<Integer, String>();

    // fetch coveredTexts of dubious items and clean it
    PreparedStatement select = null;
    PreparedStatement update = null;
    try {//from  w  ww . j  a  va  2s.  c  o  m
        StringBuilder selectQuery = new StringBuilder();
        selectQuery.append("SELECT * FROM cachedparse WHERE pennTree = 'ERROR' OR pennTree = ''");

        select = connection.prepareStatement(selectQuery.toString());
        log.info("Running query [" + selectQuery.toString() + "].");
        ResultSet rs = select.executeQuery();

        //         CSVWriter writer;
        String text;
        JCas jcas = JCasFactory.createJCas();
        String updateQuery = "UPDATE CachedParse SET pennTree = ? WHERE collectionId = ? AND documentId = ? AND beginOffset = ? AND endOffset = ?";
        update = connection.prepareStatement(updateQuery);
        //         File base = new File("");

        AnalysisEngine sentences = createEngine(DummySentenceSplitter.class);
        AnalysisEngine tokenizer = createEngine(StanfordSegmenter.class,
                StanfordSegmenter.PARAM_CREATE_SENTENCES, false, StanfordSegmenter.PARAM_CREATE_TOKENS, true);
        AnalysisEngine parser = createEngine(StanfordParser.class, StanfordParser.PARAM_WRITE_CONSTITUENT, true,
                //               StanfordParser.PARAM_CREATE_DEPENDENCY_TAGS, true,
                StanfordParser.PARAM_WRITE_PENN_TREE, true, StanfordParser.PARAM_LANGUAGE, "en",
                StanfordParser.PARAM_VARIANT, "factored");

        while (rs.next()) {
            String collectionId = rs.getString("collectionId");
            String documentId = rs.getString("documentId");
            int beginOffset = rs.getInt("beginOffset");
            int endOffset = rs.getInt("endOffset");
            text = retrieveCoveredText(collectionId, documentId, beginOffset, endOffset);

            jcas.setDocumentText(text);
            jcas.setDocumentLanguage("en");
            sentences.process(jcas);
            tokenizer.process(jcas);
            parser.process(jcas);

            //            writer = new CSVWriter(new FileWriter(new File(base, documentId + ".csv"));

            System.out.println("Updating " + text);
            for (PennTree p : JCasUtil.select(jcas, PennTree.class)) {
                String tree = StringUtils.normalizeSpace(p.getPennTree());
                update.setString(1, tree);
                update.setString(2, collectionId);
                update.setString(3, documentId);
                update.setInt(4, beginOffset);
                update.setInt(5, endOffset);
                update.executeUpdate();
                System.out.println("with tree " + tree);
                break;
            }
            jcas.reset();
        }
    } catch (SQLException e) {
        log.error("Exception while selecting: " + e.getMessage());
    } catch (UIMAException e) {
        e.printStackTrace();
    } finally {
        closeQuietly(select);
        closeQuietly(update);
    }

    // write logs
    //      BufferedWriter bwf = null;
    //      BufferedWriter bws = null;
    //      try {
    //         bwf = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(
    //               LOG_FAILED)), "UTF-8"));
    //         for (Entry<Integer, String> e : failed.entrySet()) {
    //            bwf.write(e.getKey() + " - " + e.getValue() + "\n");
    //         }
    //
    //         bws = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(
    //               LOG_SUCCESSFUL)), "UTF-8"));
    //         for (Entry<Integer, String> e : items.entrySet()) {
    //            bws.write(e.getKey() + " - " + e.getValue() + "\n");
    //         }
    //      }
    //      catch (IOException e) {
    //         log.error("Got an IOException while writing the log files.");
    //      }
    //      finally {
    //         IOUtils.closeQuietly(bwf);
    //         IOUtils.closeQuietly(bws);
    //      }

    log.info("Texts for [" + items.size() + "] items need to be cleaned up.");

    // update the dubious items with the cleaned coveredText
    //      PreparedStatement update = null;
    //      try {
    //         String updateQuery = "UPDATE EvaluationItem SET coveredText = ? WHERE id = ?";
    //
    //         update = connection.prepareStatement(updateQuery);
    //         int i = 0;
    //         for (Entry<Integer, String> e : items.entrySet()) {
    //            int id = e.getKey();
    //            String coveredText = e.getValue();
    //
    //            // update item in database
    //            update.setString(1, coveredText);
    //            update.setInt(2, id);
    //            update.executeUpdate();
    //            log.debug("Updating " + id + " with [" + coveredText + "]");
    //
    //            // show percentage of updated items
    //            i++;
    //            int part = (int) Math.ceil((double) items.size() / 100);
    //            if (i % part == 0) {
    //               log.info(i / part + "% finished (" + i + "/" + items.size() + ").");
    //            }
    //         }
    //      }
    //      catch (SQLException e) {
    //         log.error("Exception while updating: " + e.getMessage());
    //      }
    //      finally {
    //         closeQuietly(update);
    //      }

    closeQuietly(connection);
}

From source file:edu.upenn.cis.FastAlign.java

/**
 * Prints alignments for options specified by command line arguments.
 * @param argv  parameters to be used by FastAlign.
 *///ww  w  .ja v  a  2 s  . c  om
public static void main(String[] argv) {

    FastAlign align = FastAlign.initCommandLine(argv);
    if (align == null) {
        System.err.println("Usage: java " + FastAlign.class.getCanonicalName() + " -i file.fr-en\n"
                + " Standard options ([USE] = strongly recommended):\n" + "  -i: [REQ] Input parallel corpus\n"
                + "  -v: [USE] Use Dirichlet prior on lexical translation distributions\n"
                + "  -d: [USE] Favor alignment points close to the monotonic diagonoal\n"
                + "  -o: [USE] Optimize how close to the diagonal alignment points should be\n"
                + "  -r: Run alignment in reverse (condition on target and predict source)\n"
                + "  -c: Output conditional probability table\n"
                + "  -e: Start with existing conditional probability table\n" + " Advanced options:\n"
                + "  -I: number of iterations in EM training (default = 5)\n"
                + "  -p: p_null parameter (default = 0.08)\n" + "  -N: No null word\n"
                + "  -a: alpha parameter for optional Dirichlet prior (default = 0.01)\n"
                + "  -T: starting lambda for diagonal distance parameter (default = 4)\n");
        System.exit(1);
    }
    boolean use_null = !align.no_null_word;
    if (align.variational_bayes && align.alpha <= 0.0) {
        System.err.println("--alpha must be > 0\n");
        System.exit(1);
    }
    double prob_align_not_null = 1.0 - align.prob_align_null;
    final int kNULL = align.d.Convert("<eps>");
    TTable s2t = new TTable();
    if (!align.existing_probability_filename.isEmpty()) {
        boolean success = s2t.ImportFromFile(align.existing_probability_filename, '\t', align.d);
        if (!success) {
            System.err.println("Can't read table " + align.existing_probability_filename);
            System.exit(1);
        }
    }
    Map<Pair, Integer> size_counts = new HashMap<Pair, Integer>();
    double tot_len_ratio = 0;
    double mean_srclen_multiplier = 0;
    List<Double> probs = new ArrayList<Double>();
    ;
    // E-M Iterations Loop TODO move this into a method?
    for (int iter = 0; iter < align.iterations || (iter == 0 && align.iterations == 0); ++iter) {
        final boolean final_iteration = (iter >= (align.iterations - 1));
        System.err.println("ITERATION " + (iter + 1) + (final_iteration ? " (FINAL)" : ""));
        Scanner in = null;
        try {
            in = new Scanner(new File(align.input));
            if (!in.hasNextLine()) {
                System.err.println("Can't read " + align.input);
                System.exit(1);
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            System.err.println("Can't read " + align.input);
            System.exit(1);
        }

        double likelihood = 0;
        double denom = 0.0;
        int lc = 0;
        boolean flag = false;
        String line;
        //         String ssrc, strg;
        ArrayList<Integer> src = new ArrayList<Integer>();
        ArrayList<Integer> trg = new ArrayList<Integer>();
        double c0 = 0;
        double emp_feat = 0;
        double toks = 0;
        // Iterate over each line of the input file
        while (in.hasNextLine()) {
            line = in.nextLine();
            ++lc;
            if (lc % 1000 == 0) {
                System.err.print('.');
                flag = true;
            }
            if (lc % 50000 == 0) {
                System.err.println(" [" + lc + "]\n");
                System.err.flush();
                flag = false;
            }
            src.clear();
            trg.clear(); // TODO this is redundant; src and tgt cleared in ParseLine
            // Integerize and split source and target lines.
            align.ParseLine(line, src, trg);
            if (align.is_reverse) {
                ArrayList<Integer> tmp = src;
                src = trg;
                trg = tmp;
            }
            // TODO Empty lines break the parser. Should this be true?
            if (src.size() == 0 || trg.size() == 0) {
                System.err.println("Error in line " + lc + "\n" + line);
                System.exit(1);
            }
            if (iter == 0) {
                tot_len_ratio += ((double) trg.size()) / ((double) src.size());
            }
            denom += trg.size();
            probs.clear();
            // Add to pair length counts only if first iteration.
            if (iter == 0) {
                Pair pair = new Pair(trg.size(), src.size());
                Integer value = size_counts.get(pair);
                if (value == null)
                    value = 0;
                size_counts.put(pair, value + 1);
            }
            boolean first_al = true; // used when printing alignments
            toks += trg.size();
            // Iterate through the English tokens
            for (int j = 0; j < trg.size(); ++j) {
                final int f_j = trg.get(j);
                double sum = 0;
                double prob_a_i = 1.0 / (src.size() + (use_null ? 1 : 0)); // uniform (model 1)
                if (use_null) {
                    if (align.favor_diagonal) {
                        prob_a_i = align.prob_align_null;
                    }
                    probs.add(0, s2t.prob(kNULL, f_j) * prob_a_i);
                    sum += probs.get(0);
                }
                double az = 0;
                if (align.favor_diagonal)
                    az = DiagonalAlignment.computeZ(j + 1, trg.size(), src.size(), align.diagonal_tension)
                            / prob_align_not_null;
                for (int i = 1; i <= src.size(); ++i) {
                    if (align.favor_diagonal)
                        prob_a_i = DiagonalAlignment.unnormalizedProb(j + 1, i, trg.size(), src.size(),
                                align.diagonal_tension) / az;
                    probs.add(i, s2t.prob(src.get(i - 1), f_j) * prob_a_i);
                    sum += probs.get(i);
                }
                if (final_iteration) {
                    double max_p = -1;
                    int max_index = -1;
                    if (use_null) {
                        max_index = 0;
                        max_p = probs.get(0);
                    }
                    for (int i = 1; i <= src.size(); ++i) {
                        if (probs.get(i) > max_p) {
                            max_index = i;
                            max_p = probs.get(i);
                        }
                    }
                    if (max_index > 0) {
                        if (first_al)
                            first_al = false;
                        else
                            System.out.print(' ');
                        if (align.is_reverse)
                            System.out.print("" + j + '-' + (max_index - 1));
                        else
                            System.out.print("" + (max_index - 1) + '-' + j);
                    }
                } else {
                    if (use_null) {
                        double count = probs.get(0) / sum;
                        c0 += count;
                        s2t.Increment(kNULL, f_j, count);
                    }
                    for (int i = 1; i <= src.size(); ++i) {
                        final double p = probs.get(i) / sum;
                        s2t.Increment(src.get(i - 1), f_j, p);
                        emp_feat += DiagonalAlignment.feature(j, i, trg.size(), src.size()) * p;
                    }
                }
                likelihood += Math.log(sum);
            }
            if (final_iteration)
                System.out.println();
        }

        // log(e) = 1.0
        double base2_likelihood = likelihood / Math.log(2);

        if (flag) {
            System.err.println();
        }
        if (iter == 0) {
            mean_srclen_multiplier = tot_len_ratio / lc;
            System.err.println("expected target length = source length * " + mean_srclen_multiplier);
        }
        emp_feat /= toks;
        System.err.println("  log_e likelihood: " + likelihood);
        System.err.println("  log_2 likelihood: " + base2_likelihood);
        System.err.println("     cross entropy: " + (-base2_likelihood / denom));
        System.err.println("        perplexity: " + Math.pow(2.0, -base2_likelihood / denom));
        System.err.println("      posterior p0: " + c0 / toks);
        System.err.println(" posterior al-feat: " + emp_feat);
        //System.err.println("     model tension: " + mod_feat / toks );
        System.err.println("       size counts: " + size_counts.size());
        if (!final_iteration) {
            if (align.favor_diagonal && align.optimize_tension && iter > 0) {
                for (int ii = 0; ii < 8; ++ii) {
                    double mod_feat = 0;
                    Iterator<Map.Entry<Pair, Integer>> it = size_counts.entrySet().iterator();
                    for (; it.hasNext();) {
                        Map.Entry<Pair, Integer> entry = it.next();
                        final Pair p = entry.getKey();
                        for (int j = 1; j <= p.first; ++j)
                            mod_feat += entry.getValue() * DiagonalAlignment.computeDLogZ(j, p.first, p.second,
                                    align.diagonal_tension);
                    }
                    mod_feat /= toks;
                    System.err.println("  " + ii + 1 + "  model al-feat: " + mod_feat + " (tension="
                            + align.diagonal_tension + ")");
                    align.diagonal_tension += (emp_feat - mod_feat) * 20.0;
                    if (align.diagonal_tension <= 0.1)
                        align.diagonal_tension = 0.1;
                    if (align.diagonal_tension > 14)
                        align.diagonal_tension = 14;
                }
                System.err.println("     final tension: " + align.diagonal_tension);
            }
            if (align.variational_bayes)
                s2t.NormalizeVB(align.alpha);
            else
                s2t.Normalize();
            //prob_align_null *= 0.8; // XXX
            //prob_align_null += (c0 / toks) * 0.2;
            prob_align_not_null = 1.0 - align.prob_align_null;
        }

    }
    if (!align.conditional_probability_filename.isEmpty()) {
        System.err.println("conditional probabilities: " + align.conditional_probability_filename);
        s2t.ExportToFile(align.conditional_probability_filename, align.d);
    }
    System.exit(0);
}

From source file:Main.java

public static int size(Map map) {
    return (map != null) ? map.size() : 0;
}

From source file:Main.java

public static Boolean isEmpty(Map c) {
    if (c == null || c.size() < 1) {
        return true;
    }//www .j  av  a 2 s.  co m
    return false;
}

From source file:Main.java

@SuppressWarnings("rawtypes")
public static boolean isBlank(Map m) {
    return m == null || m.size() == 0;
}

From source file:Main.java

@SuppressWarnings("rawtypes")
public static boolean isNotBlank(Map m) {
    return m != null && m.size() > 0;
}

From source file:Main.java

public static boolean isEmpty(Map map) {
    return map == null || map.size() == 0;
}

From source file:Main.java

public static Object extractSingleMapRoot(Map map) {

    if (map.size() == 1) {
        Object root = map.values().iterator().next();
        return root;
    }//w  w  w.  java  2 s .  c o m
    return map;
}