Here you can find the source of shorten(String label, int maxLength)
| Parameter | Description |
|---|---|
| label | the label |
| maxLength | the max length |
public static String shorten(String label, int maxLength)
//package com.java2s; /*/*from w w w. java 2 s. c o m*/ * 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. * */ public class Main { private static final String DOT_DOT_DOT = "..."; /** * Shortens the given label to the given maximum length * and filters non-printable characters. * * @param label the label * @param maxLength the max length * * @return the shortened label */ public static String shorten(String label, int maxLength) { if (label == null) { return null; } // shorten label if (maxLength < 3) { return DOT_DOT_DOT; } if (label.length() > maxLength) { label = label.substring(0, maxLength / 2) + DOT_DOT_DOT + label.substring(label.length() - maxLength / 2, label.length()); } // filter non-printable characters StringBuffer sb = new StringBuffer(maxLength + 3); for (int i = 0; i < label.length(); i++) { char c = label.charAt(i); if (Character.isISOControl(c)) { sb.append('.'); } else { sb.append(c); } } return sb.toString(); } }