/*
* Copyright 2015 TWO SIGMA OPEN SOURCE, LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.twosigma.beaker.shared.module.util;
import org.apache.commons.lang3.StringEscapeUtils;
import org.apache.commons.lang3.StringUtils;
public class ControlCharacterUtils {
public static String escapeControlCharacters(final String value) {
if (StringUtils.isNotEmpty(value)) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < value.length(); i++) {
if (Character.isISOControl(value.charAt(i))) {
sb.append(StringEscapeUtils.escapeJson(value.substring(i, i + 1)));
} else {
sb.append(value.charAt(i));
}
}
return sb.toString();
}
return StringUtils.EMPTY;
}
public static boolean containsControlCharacters(final String value) {
if (StringUtils.isNotEmpty(value)) {
for (int i = 0; i < value.length(); i++) {
char c = value.charAt(i);
if (!Character.isWhitespace(c) && Character.isISOControl(c)) {
return true;
}
}
}
return false;
}
}