/*
* #%L
* Talend :: ESB :: Job :: API
* %%
* Copyright (C) 2011 - 2012 Talend Inc.
* %%
* 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.
* #L%
*/
// ============================================================================
//
// Copyright (C) 2006-2016 Talend Inc. - www.talend.com
//
// This source code is available under agreement available at
// %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt
//
// You should have received a copy of the agreement
// along with this program; if not, write to Talend SA
// 9 rue Pages 92150 Suresnes, France
//
// ============================================================================
package routines.system;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class StringUtils {
public static String[] split(String str, String separator) {
return str.split(separator);
}
public static String deleteChar(String s, char delChar) {
int len = s.length();
char[] val = s.toCharArray();
char buf[] = new char[len];
int m = 0;
for (int k = 0; k < len; k++) {
char c = val[k];
if (c != delChar) {
buf[m] = c;
m++;
}
}
return new String(buf, 0, m);
}
public static String list(String[] stringArray) {
return list(stringArray, null, null, null, null);
}
public static String list(String[] stringArray, String separator) {
return list(stringArray, separator, null, null, null);
}
public static String list(String[] stringArray, String separator, String startEnclosure, String endEnclosure) {
return list(stringArray, separator, startEnclosure, endEnclosure, null);
}
public static String list(String[] stringArray, String separator, String escaper) {
return list(stringArray, separator, null, null, escaper);
}
public static String list(String[] stringArray, String separator, String startEnclosure, String endEnclosure, String escaper) {
if (separator == null) {
separator = ""; //$NON-NLS-1$
} else {
separator = separator.trim();
}
if (startEnclosure == null) {
startEnclosure = ""; //$NON-NLS-1$
} else {
startEnclosure = startEnclosure.trim();
}
if (endEnclosure == null) {
endEnclosure = ""; //$NON-NLS-1$
} else {
endEnclosure = endEnclosure.trim();
}
if (escaper == null) {
escaper = ""; //$NON-NLS-1$
} else {
escaper = escaper.trim();
}
StringBuilder result = new StringBuilder();
result.append(startEnclosure);
boolean flag = false;
for (String item : stringArray) {
item = item.trim();
if (flag) {
result.append(separator);
} else {
flag = true;
}
result.append(escaper);
result.append(item);
result.append(escaper);
}
result.append(endEnclosure);
return result.toString();
}
/**
* to discuss the case: src == null || regex == null || replacement == null
*
*/
public static String replaceAll(String src, String regex, String replacement) {
// case 1:
if (regex == null) {
if (src == null) {
return replacement; // regex == null && src == null
} else {
return src; // regex == null && src != null
}
} else {
// case 2:
if (src == null) {
return null; // regex != null && src == null
} else {
// case 3:
if (replacement == null) {
if (src.matches(regex)) {
// regex != null && src != null && replacement != null, and match the whole src
return replacement;
} else {
return src; // can't match the whole src
}
} else {
// regex != null && src != null && replacement != null
return src.replaceAll(regex, replacement);
}
}
}
}
/**
* ignore regex
*
*/
public static String replaceAllStrictly(String src, String search, String replacement, boolean entirelyMatch,
boolean caseSensitive) {
// case 1:
if (search == null) {
if (src == null) {
return replacement; // regex == null && src == null
} else {
return src; // regex == null && src != null
}
} else {
// case 2:
if (src == null) {
return null; // regex != null && src == null
} else {
// case 3:
if (replacement == null) {
if (src.equals(search)) {
// regex != null && src != null && replacement != null, and match the whole src
return replacement;
} else {
return src; // can't match the whole src
}
} else {
// regex != null && src != null && replacement != null
if (entirelyMatch) {
String upperSrc = caseSensitive ? src : src.toUpperCase();
String upperSearch = caseSensitive ? search : search.toUpperCase();
return upperSrc.equals(upperSearch) ? replacement : src;
} else {
int flag = caseSensitive ? Pattern.LITERAL : Pattern.LITERAL | Pattern.CASE_INSENSITIVE;
return Pattern.compile(search, flag).matcher(src).replaceAll(Matcher.quoteReplacement(replacement));
}
}
}
}
}
/**
* make \n to \\n. It will process these chars: \n, \r, \t, \f, \\, \", \', \b
*
*/
public static String escapeChar(String s) {
if (s == null) {
return null;
}
int length = s.length();
StringBuffer sb = new StringBuffer(length);
for (int i = 0; i < length; i++) {
char c = s.charAt(i);
switch (c) {
case '\n':
sb.append("\\").append('n'); //$NON-NLS-1$
break;
case '\r':
sb.append("\\").append('r'); //$NON-NLS-1$
break;
case '\t':
sb.append("\\").append('t'); //$NON-NLS-1$
break;
case '\f':
sb.append("\\").append('f'); //$NON-NLS-1$
break;
case '\b':
sb.append("\\").append('b'); //$NON-NLS-1$
break;
case '\"':
sb.append("\\").append('\"'); //$NON-NLS-1$
break;
case '\'':
sb.append("\\").append('\''); //$NON-NLS-1$
break;
default:
sb.append(c);
}
}
return sb.toString();
}
}