com.spotify.helios.servicescommon.coordination.PathFactory Maven / Gradle / Ivy
/*
* Copyright (c) 2014 Spotify AB.
*
* 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 com.spotify.helios.servicescommon.coordination;
import org.apache.zookeeper.common.PathUtils;
public class PathFactory {
private final String base;
public PathFactory(final String base, final String... parts) {
final String joined = join(base, parts);
this.base = joined.startsWith("/") ? joined : "/" + joined;
PathUtils.validatePath(base);
}
public String path(final String... parts) {
final String path = join(base, parts);
PathUtils.validatePath(path);
return path;
}
private String join(final String base, final String... parts) {
final StringBuilder builder = new StringBuilder(base);
for (final String part : parts) {
if (part.isEmpty()) {
continue;
}
if (builder.charAt(builder.length() - 1) != '/' && part.charAt(0) != '/') {
builder.append('/');
}
builder.append(part);
}
return builder.toString();
}
}