hudson.plugins.memegen.MemegeneratorResponseException.java Source code

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Here is the source code for hudson.plugins.memegen.MemegeneratorResponseException.java

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/*
 * The MIT License
 *
 * Copyright 2012 Jon Cairns <jon.cairns@22blue.co.uk>.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package hudson.plugins.memegen;

import java.util.*;
import java.net.URL;
import java.net.URLEncoder;
import java.net.MalformedURLException;
import java.net.HttpURLConnection;
import java.io.IOException;
import java.io.Reader;
import java.io.InputStreamReader;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;

class MemegeneratorResponseException extends Exception {
    MemegeneratorResponseException(JSONObject obj) {
        super(obj.get("errorMessage") + ", full response: " + obj.toJSONString());
    }
}

class MemegeneratorJSONException extends Exception {
    MemegeneratorJSONException(JSONObject obj, String key) {
        super("Missing key in JSON response: " + key + ", full response: " + obj.toJSONString());
    }
}

/**
 *
 * @author Jon Cairns <jon.cairns@22blue.co.uk>
 */
public class MemegeneratorAPI {
    private static final String APIURL = "http://version1.api.memegenerator.net";

    private String username;
    private String password;

    MemegeneratorAPI(String username, String password) {
        this.username = username;
        this.password = password;
    }

    public boolean instanceCreate(Meme meme) {
        boolean ret = false;
        HashMap<String, String> vars = new HashMap();
        vars.put("username", username);
        vars.put("password", password);
        vars.put("text0", meme.getUpperText());
        vars.put("text1", meme.getLowerText());
        vars.put("generatorID", "" + meme.getGeneratorID());
        vars.put("imageID", "" + meme.getImageID());

        try {
            URL url = buildURL("Instance_Create", vars);

            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            HttpURLConnection.setFollowRedirects(true);
            conn.setDoOutput(true);
            JSONObject obj = parseResponse(conn);
            JSONObject result = (JSONObject) obj.get("result");
            String memeUrl = (String) result.get("instanceImageUrl");
            if (memeUrl.matches("^http(.*)") == false) {
                memeUrl = APIURL + memeUrl;
            }
            //Debug the JSON to logs
            //System.err.println(obj.toJSONString()+", AND "+result.toJSONString());
            meme.setImageURL(memeUrl);
            ret = true;

        } catch (MalformedURLException me) {
            String log_warn_prefix = "Memegenerator API malformed URL: ";
            System.err.println(log_warn_prefix.concat(me.getMessage()));
        } catch (IOException ie) {
            String log_warn_prefix = "Memegenerator API IO exception: ";
            System.err.println(log_warn_prefix.concat(ie.getMessage()));
        } catch (ParseException pe) {
            String log_warn_prefix = "Memegenerator API malformed response: ";
            System.err.println(log_warn_prefix.concat(pe.getMessage()));
        } catch (MemegeneratorResponseException mre) {
            String log_warn_prefix = "Memegenerator API failure: ";
            System.err.println(log_warn_prefix.concat(mre.getMessage()));
        } catch (MemegeneratorJSONException mje) {
            String log_warn_prefix = "Memegenerator API malformed JSON: ";
            System.err.println(log_warn_prefix.concat(mje.getMessage()));
        }

        return ret;
    }

    protected URL buildURL(String action, HashMap<String, String> map) throws MalformedURLException, IOException {

        String getVars = "";
        Set s = map.entrySet();
        Iterator i = s.iterator();
        while (i.hasNext()) {
            Map.Entry var = (Map.Entry) i.next();
            getVars += URLEncoder.encode((String) var.getKey(), "UTF-8") + "="
                    + URLEncoder.encode((String) var.getValue(), "UTF-8") + "&";
        }
        URL url = new URL(APIURL + "/" + action + "?" + getVars);
        return url;
    }

    protected JSONObject parseResponse(HttpURLConnection conn)
            throws ParseException, IOException, MemegeneratorResponseException, MemegeneratorJSONException {

        Reader rd = new InputStreamReader(conn.getInputStream());
        JSONParser parser = new JSONParser();
        Object obj = parser.parse(rd);

        JSONObject jsonObject = (JSONObject) obj;
        if (!jsonObject.containsKey("success")) {
            throw new MemegeneratorJSONException(jsonObject, "success");
        }
        if (!jsonObject.get("success").equals(true)) {
            throw new MemegeneratorResponseException(jsonObject);
        }

        if (!jsonObject.containsKey("result")) {
            throw new MemegeneratorJSONException(jsonObject, "result");
        }

        return jsonObject;
    }
}