Example usage for java.lang Character.UnicodeBlock toString

Introduction

In this page you can find the example usage for java.lang Character.UnicodeBlock toString.

Prototype

public String toString() 

Source Link

Document

Returns a String object representing this Character 's value.

Usage

From source file:org.apache.tika.eval.AbstractProfiler.java

void unicodeBlocks(Metadata metadata, Map<Cols, String> data) {
    String content = getContent(metadata);
    if (content.length() < 200) {
        return;/* w w  w  .j a  va  2  s  .  co m*/
    }
    String s = content;
    if (content.length() > maxContentLengthForLangId) {
        s = content.substring(0, maxContentLengthForLangId);
    }
    Map<String, Integer> m = new HashMap<>();
    Reader r = new StringReader(s);
    try {
        int c = r.read();
        while (c != -1) {
            Character.UnicodeBlock block = Character.UnicodeBlock.of(c);
            String blockString = (block == null) ? "NULL" : block.toString();
            Integer i = m.get(blockString);
            if (i == null) {
                i = 0;
            }
            i++;
            if (block == null) {
                blockString = "NULL";
            }
            m.put(blockString, i);
            c = r.read();
        }
    } catch (IOException e) {
        e.printStackTrace();
        //swallow
    }

    List<Pair<String, Integer>> pairs = new ArrayList<>();
    for (Map.Entry<String, Integer> e : m.entrySet()) {
        pairs.add(Pair.of(e.getKey(), e.getValue()));
    }
    Collections.sort(pairs, new Comparator<Pair<String, Integer>>() {
        @Override
        public int compare(Pair<String, Integer> o1, Pair<String, Integer> o2) {
            return o2.getValue().compareTo(o1.getValue());
        }
    });
    StringBuilder sb = new StringBuilder();

    for (int i = 0; i < 20 && i < pairs.size(); i++) {
        if (i > 0) {
            sb.append(" | ");
        }
        sb.append(pairs.get(i).getKey() + ": " + pairs.get(i).getValue());
    }
    data.put(Cols.UNICODE_CHAR_BLOCKS, sb.toString());
}

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