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/*
* The MIT License
*
* Copyright 2017 Intuit Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.intuit.karate;
import java.io.BufferedReader;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.stream.Collectors;
/**
*
* @author pthomas3
*/
public class StringUtils {
private StringUtils() {
// only static methods
}
private static final String EMPTY = "";
public static class Pair {
public final String left;
public final String right;
public Pair(String left, String right) {
this.left = left;
this.right = right;
}
@Override // only needed for unit test, so no validation and null checks
public boolean equals(Object obj) {
Pair o = (Pair) obj;
return left.equals(o.left) && right.equals(o.right);
}
}
public static Pair pair(String left, String right) {
return new Pair(left, right);
}
public static String trimToEmpty(String s) {
if (s == null) {
return EMPTY;
} else {
return s.trim();
}
}
public static String trimToNull(String s) {
if (s == null) {
return null;
}
String temp = trimToEmpty(s);
return EMPTY.equals(temp) ? null : temp;
}
public static String repeat(char c, int count) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < count; i++) {
sb.append(c);
}
return sb.toString();
}
public static String join(Object[] a, char delimiter) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < a.length; i++) {
sb.append(a[i]);
if (i != a.length - 1) {
sb.append(delimiter);
}
}
return sb.toString();
}
public static String join(Collection c, char delimiter) {
StringBuilder sb = new StringBuilder();
Iterator iterator = c.iterator();
while (iterator.hasNext()) {
sb.append(iterator.next());
if (iterator.hasNext()) {
sb.append(delimiter);
}
}
return sb.toString();
}
public static List split(String s, char delimiter) {
int pos = s.indexOf(delimiter);
if (pos == -1) {
return Collections.singletonList(s);
}
List list = new ArrayList();
int startPos = 0;
while (pos != -1) {
String temp = s.substring(startPos, pos);
if (!EMPTY.equals(temp)) {
list.add(temp);
}
startPos = pos + 1;
pos = s.indexOf(delimiter, startPos);
}
if (startPos != s.length()) {
String temp = s.substring(startPos);
if (!EMPTY.equals(temp)) {
list.add(temp);
}
}
return list;
}
public static boolean isBlank(String s) {
return trimToNull(s) == null;
}
public static String toIdString(String name) {
return name.replaceAll("[\\s_]", "-").toLowerCase();
}
public static StringUtils.Pair splitByFirstLineFeed(String text) {
String left = "";
String right = "";
if (text != null) {
int pos = text.indexOf('\n');
if (pos != -1) {
left = text.substring(0, pos).trim();
right = text.substring(pos).trim();
} else {
left = text.trim();
}
}
return StringUtils.pair(left, right);
}
public static List toStringLines(String text) {
return new BufferedReader(new StringReader(text)).lines().collect(Collectors.toList());
}
}
