io.fabric8.kubernetes.api.KubernetesNames Maven / Gradle / Ivy
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 io.fabric8.kubernetes.api;
/**
*/
public class KubernetesNames {
/**
* Lets convert the string to btw a valid kubernetes resource name
*/
public static String convertToKubernetesName(String text, boolean allowDots) {
String lower = text.toLowerCase();
StringBuilder builder = new StringBuilder();
boolean started = false;
char lastCh = ' ';
for (int i = 0, last = lower.length() - 1; i <= last; i++) {
char ch = lower.charAt(i);
if (!(ch >= 'a' && ch <= 'z') && !(ch >= '0' && ch <= '9')) {
if (ch == '/') {
ch = '.';
} else if (ch != '.' && ch != '-') {
ch = '-';
}
if (!allowDots && ch == '.') {
ch = '-';
}
if (!started || lastCh == '-' || lastCh == '.' || i == last) {
continue;
}
}
builder.append(ch);
started = true;
lastCh = ch;
}
return builder.toString();
}
}