Java Json Convert toStringArray(JsonArray jsa)

Description

Convert a JsonArray to a String array.

License

Apache License

Parameter

Parameter	Description
jsa	the JsonArray

Return

the String array

Declaration

public static String[] toStringArray(JsonArray jsa) 

Method Source Code

//package com.java2s;
/* See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * Esri Inc. 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./*from w  w w .  j  a v  a 2 s  .c o m*/
 */

import java.util.ArrayList;

import javax.json.JsonArray;
import javax.json.JsonObject;

import javax.json.JsonString;

import javax.json.JsonValue;

import javax.json.JsonValue.ValueType;

public class Main {
    /**
     * Convert a JsonArray to a String array.
     * @param jsa the JsonArray
     * @return the String array
     */
    public static String[] toStringArray(JsonArray jsa) {
        ArrayList<String> list = new ArrayList<String>();
        for (JsonValue v : jsa) {
            if ((v != null) && v.getValueType().equals(ValueType.STRING)) {
                list.add(((JsonString) v).getString());
            }
        }
        return list.toArray(new String[0]);
    }

    /**
     * Gets a string value.
     * @param jso the json object
     * @param name the property name
     * @return the stgring value
     */
    public static String getString(JsonObject jso, String name) {
        if (jso != null && jso.containsKey(name) && !jso.isNull(name)) {
            JsonValue v = jso.get(name);
            if (v.getValueType().equals(ValueType.STRING)) {
                return jso.getString(name);
            } else if (v.getValueType().equals(ValueType.NUMBER)) {
                // TODO Convert to string?
            }
        }
        return null;
    }
}

Related

1. jsonArrayToString(final JsonArray array)
2. toIntArray(JsonArray jsonArray)
3. toJsonString(JsonObject json)
4. toList(JsonArray array)
5. toString(JsonValue json)