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Apache ZooKeeper Server Source Code
Apache ZooKeeper is an open-source server which enables highly reliable distributed coordination.
Apache ZooKeeper Server Source Code files are provided in the source package file, apache-zookeeper-3.8.0.tar.gz.
You can download apache-zookeeper-3.8.0.tar.gz as described in the previous tutorial and go to the "zookeeper-server" sub-folder to view Apache ZooKeeper Server Source Code files.
You can also browse Apache ZooKeeper Server Source Code below:
✍: FYIcenter.com
⏎ org/apache/zookeeper/common/StringUtils.java
/* 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 org.apache.zookeeper.common; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.Objects; public class StringUtils { private StringUtils() {/** non instantiable and non inheritable **/} /** * This method returns an immutable List<String>, but different from String's split() * it trims the results in the input String, and removes any empty string from * the resulting List. * */ public static List<String> split(String value, String separator) { String[] splits = value.split(separator); List<String> results = new ArrayList<String>(); for (int i = 0; i < splits.length; i++) { splits[i] = splits[i].trim(); if (splits[i].length() > 0) { results.add(splits[i]); } } return Collections.unmodifiableList(results); } /** * This method takes a List<String> and a delimiter and joins the * strings into a single string, where the original strings are separated * using the given delimiter. This method is a null-safe version of * {@link String#join(CharSequence, Iterable)} * * <p> * Note that if an individual element is null, then "null" is added. * </p> * @param list a {@code List} that will have its elements joined together * @param delim a sequence of characters that is used to separate each of the * elements in the resulting String * @return a new String that is composed from the elements argument or * {@code null} if list is {@code null} * @throws NullPointerException if delim is {@code null} */ public static String joinStrings(List<String> list, String delim) { Objects.requireNonNull(delim); return list == null ? null : String.join(delim, list); } /** * Returns true if the string is null or it does not contain any non space characters. * @param s the string * @return true if the string is null or it does not contain any non space characters. */ public static boolean isBlank(String s) { return s == null || s.trim().isEmpty(); } /** * <p>Checks if a String is empty ("") or null.</p> * * <pre> * StringUtils.isEmpty(null) = true * StringUtils.isEmpty("") = true * StringUtils.isEmpty(" ") = false * StringUtils.isEmpty("bob") = false * StringUtils.isEmpty(" bob ") = false * </pre> * * @param str the String to check, may be null * @return <code>true</code> if the String is empty or null */ public static boolean isEmpty(String str) { return str == null || str.length() == 0; } }
⏎ org/apache/zookeeper/common/StringUtils.java
Or download all of them as a single archive file:
File name: zookeeper-server-3.8.0-fyi.zip File size: 885581 bytes Release date: 2022-02-25 Download
⇒ Apache ZooKeeper Jute Source Code
⇐ Download and Install Apache ZooKeeper Source Package
2022-11-16, 13126👍, 0💬
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