Java String Abbreviate abbreviate(final String str)

Description

abbreviate

License

Apache License

Declaration

public static String abbreviate(final String str) 

Method Source Code

//package com.java2s;
/*/* w ww .  j  av  a 2 s  .  co  m*/
 * Copyright 2017 NAVER Corp.
 *
 * Licensed 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 int DEFAULT_ABBREVIATE_MAX_WIDTH = 64;
    private static final String NULL_STRING = "null";

    public static String abbreviate(final String str) {
        return abbreviate(str, DEFAULT_ABBREVIATE_MAX_WIDTH);
    }

    public static String abbreviate(final String str, final int maxWidth) {
        if (str == null) {
            return NULL_STRING;
        }
        if (maxWidth < 0) {
            throw new IllegalArgumentException("negative maxWidth:" + maxWidth);
        }
        if (str.length() > maxWidth) {
            StringBuilder buffer = new StringBuilder(maxWidth + 10);
            buffer.append(str, 0, maxWidth);
            appendAbbreviateMessage(buffer, str.length());
            return buffer.toString();
        } else {
            return str;
        }
    }

    private static void appendAbbreviateMessage(final StringBuilder buffer, final int strLength) {
        buffer.append("...(");
        buffer.append(strLength);
        buffer.append(')');
    }

    public static String toString(final Object object) {
        if (object == null) {
            return NULL_STRING;
        }
        return object.toString();
    }
}

Related

1. abbr(String str, int length)
2. abbrev(String longString, int size)
3. abbrev(String result, int maxLength, String separator)
4. abbreviate(final String str, final int maxWidth)
5. abbreviate(final String str, int lower, int upper, final String appendToEnd)
6. abbreviate(final String value, final int maxLength)
7. abbreviate(final String value, int max)