Parses a JSON object into a map of links. - Java Network

Java examples for Network:Http

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Description

Parses a JSON object into a map of links.

Demo Code

/*//from  ww w . j av  a 2  s .co m
 * ClientUtilities
 * Copyright (C) 2015 Nishimura Software Studio
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Affero General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
import java.net.MalformedURLException;
import java.net.URL;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.json.JsonObject;
import javax.json.JsonValue;

public class Main{
    private static final String PACKAGE_NAME = ClientUtilities.class
            .getPackage().getName();
    /**
     * Parses a JSON object into a map of links.
     * @param jsonObject JSON object
     * @return map of links
     */
    public static Map<String, URL> parseLinks(JsonObject jsonObject) {
        Map<String, URL> links = new HashMap<String, URL>();
        for (Map.Entry<String, JsonValue> entry : jsonObject.entrySet()) {
            try {
                URL link = parseLink((JsonObject) entry.getValue());
                links.put(entry.getKey(), link);
            } catch (MalformedURLException exception) {
                getLogger().log(Level.WARNING,
                        "Could not parse a URL value", exception);
            }
        }
        return links;
    }
    /**
     * Parses a JSON object into a URL.
     * @param jsonObject JSON object
     * @return link
     * @throws MalformedURLException if the <code>href</code> value could not
     * be parsed as a URL.
     */
    protected static URL parseLink(JsonObject jsonObject)
            throws MalformedURLException {
        return parseURL(jsonObject.getString(ClientJsonKeys.HREF));
    }
    /**
     * Returns a logger.
     * @return logger for this package
     */
    public static Logger getLogger() {
        return Logger.getLogger(PACKAGE_NAME, PACKAGE_NAME
                + ".resources.LogMessages");
    }
    /**
     * Parses a string into a URL.
     * @param string string that represents a URL
     * @return parsed {@link URL} object, or <code>null</code> if the string
     * is <code>null</code>
     * @throws MalformedURLException if the string could not parsed as a URL.
     */
    public static URL parseURL(String string) throws MalformedURLException {
        if (string == null) {
            return null;
        }

        return new URL(string);
    }
}

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