io.fabric8.apmagent.utils.StringArrayConverter Maven / Gradle / Ivy

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/**
 *  Copyright 2005-2016 Red Hat, Inc.
 *
 *  Red Hat 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.apmagent.utils;

import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;

public class StringArrayConverter {

    public static String[] convertToStringArray(Object value) {
        if (value == null) {
            return null;
        }

        String text = value.toString();
        if (text == null || text.length() == 0) {
            return null;
        }

        StringTokenizer stok = new StringTokenizer(text, ",");
        final List list = new ArrayList();

        while (stok.hasMoreTokens()) {
            list.add(stok.nextToken());
        }

        String[] array = list.toArray(new String[list.size()]);
        return array;
    }

    public static String convertToString(String[] value) {
        if (value == null || value.length == 0) {
            return null;
        }

        StringBuffer result = new StringBuffer(String.valueOf(value[0]));
        for (int i = 1; i < value.length; i++) {
            result.append(",").append(value[i]);
        }

        return result.toString();
    }

}