Package br.net.woodstock.rockframework.core.utils

Source Code of br.net.woodstock.rockframework.core.utils.Strings

/*
* This file is part of rockframework.
*
* rockframework is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* rockframework is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>;.
*/
package br.net.woodstock.rockframework.core.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Formatter;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;

import br.net.woodstock.rockframework.core.string.impl.RandomGenerator;

public abstract class Strings {

  private static final Map<Character, String>  HTML_REPLACEMENT;

  static {
    HTML_REPLACEMENT = new HashMap<Character, String>();
    Strings.HTML_REPLACEMENT.put(Character.valueOf('<'), "&lt;");
    Strings.HTML_REPLACEMENT.put(Character.valueOf('>'), "&gt;");
    Strings.HTML_REPLACEMENT.put(Character.valueOf('&'), "&amp;");
    Strings.HTML_REPLACEMENT.put(Character.valueOf('\''), "&#039;");
    Strings.HTML_REPLACEMENT.put(Character.valueOf('"'), "&quot;");
  }

  private Strings() {
    //
  }

  public static String escapeHTML(final String s) {
    if (Conditions.isEmpty(s)) {
      return null;
    }

    StringBuilder builder = new StringBuilder();
    for (char c : s.toCharArray()) {
      Character wrappedChar = Character.valueOf(c);
      if (Strings.HTML_REPLACEMENT.containsKey(wrappedChar)) {
        builder.append(Strings.HTML_REPLACEMENT.get(wrappedChar));
      } else {
        builder.append(c);
      }
    }

    return builder.toString();
  }

  public static String format(final String text, final Object... objects) {
    Formatter formatter = new Formatter();
    formatter.format(text, objects);
    String value = formatter.toString();
    formatter.close();
    return value;
  }

  public static boolean hasOnlyDigit(final String s) {
    if (Conditions.isEmpty(s)) {
      return false;
    }
    for (char c : s.toCharArray()) {
      if (!Character.isDigit(c)) {
        return false;
      }
    }
    return true;
  }

  public static boolean hasOnlyLetter(final String s) {
    if (Conditions.isEmpty(s)) {
      return false;
    }
    for (char c : s.toCharArray()) {
      if (!Character.isLetter(c)) {
        return false;
      }
    }
    return true;
  }

  public static boolean hasOnlyLetterOrDigit(final String s) {
    if (Conditions.isEmpty(s)) {
      return false;
    }
    for (char c : s.toCharArray()) {
      if (!Character.isLetterOrDigit(c)) {
        return false;
      }
    }
    return true;
  }

  public static String random(final int size) {
    RandomGenerator randomString = new RandomGenerator(size);
    return randomString.generate();
  }

  public static String replace(final InputStream input, final Map<String, String> replaces) throws IOException {
    return Strings.replace(new InputStreamReader(input), replaces);
  }

  public static String replace(final Reader reader, final Map<String, String> replaces) throws IOException {
    BufferedReader r = new BufferedReader(reader);
    StringBuilder b = new StringBuilder();
    String tmp = null;
    while ((tmp = r.readLine()) != null) {
      b.append(tmp);
      b.append(SystemProperties.getProperty(SystemProperties.LINE_SEPARATOR_PROPERTY));
    }
    return Strings.replace(b.toString(), replaces);
  }

  public static String replace(final String s, final Map<String, String> replaces) {
    String ss = s;
    if (replaces.size() > 0) {
      for (Entry<String, String> entry : replaces.entrySet()) {
        ss = ss.replaceAll(entry.getKey(), entry.getValue());
      }
    }
    return ss;
  }

  public static String repeat(final String s, final int times) {
    if (Conditions.isEmpty(s)) {
      return null;
    }
    StringBuilder b = new StringBuilder();
    for (int i = 0; i < times; i++) {
      b.append(s);
    }
    return b.toString();
  }

  public static String reverse(final String s) {
    if (s == null) {
      return null;
    }
    return new StringBuilder(s).reverse().toString();
  }

  public static String toString(final Object obj) {
    if (obj != null) {
      return obj.toString();
    }
    return null;
  }
}
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