org.celstec.arlearn2.gwtcommonlib.client.network.JsonCallback.java Source code

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Here is the source code for org.celstec.arlearn2.gwtcommonlib.client.network.JsonCallback.java

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/*******************************************************************************
 * Copyright (C) 2013 Open Universiteit Nederland
 * 
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This library 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 Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors: Stefaan Ternier
 ******************************************************************************/
package org.celstec.arlearn2.gwtcommonlib.client.network;

import org.celstec.arlearn2.gwtcommonlib.client.auth.Authentication;

import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.json.client.JSONValue;
import com.smartgwt.client.widgets.grid.ListGridRecord;

public class JsonCallback {

    protected String type;
    protected JSONArray jsonValue;
    protected ReadyCallback rc;

    public JsonCallback() {

    }

    public void setReadyCallback(ReadyCallback rc) {
        this.rc = rc;
    }

    public JsonCallback(String type) {
        this.type = type;
    }

    public void onJsonReceivedNoProcessing(JSONValue jsonValue) {
        if (type != null && jsonValue.isObject().get(type) != null
                && jsonValue.isObject().get(type).isArray() != null) {
            this.jsonValue = jsonValue.isObject().get(type).isArray();
        }
        if (jsonValue.isObject() != null && jsonValue.isObject().get("error") != null) {
            Authentication.getInstance().disAuthenticate();
        }
    }

    public void onJsonReceived(JSONValue jsonValue) {
        if (type != null && jsonValue.isObject().get(type) != null
                && jsonValue.isObject().get(type).isArray() != null) {
            this.jsonValue = jsonValue.isObject().get(type).isArray();
        }
        if (jsonValue.isObject() != null && jsonValue.isObject().get("error") != null) {
            Authentication.getInstance().disAuthenticate();
        }
        onReceived();
    }

    public ListGridRecord processArrayEntry(int i) {
        return null;
    }

    public void onError() {

    }

    //todo make abstract
    public void onReceived() {
    };

    public int size() {
        if (jsonValue == null)
            return 0;
        return jsonValue.size();
    }

    public String getAttributeString(int i, String attributeName) {
        if (jsonValue == null)
            return null;
        //         Window.alert("jsonValue string"+jsonValue);
        //         Window.alert("jsonValue string"+i+ " "+jsonValue.get(i));
        JSONObject game = jsonValue.get(i).isObject();
        if (game == null)
            return null;
        if (!game.containsKey(attributeName))
            return null;
        if (game.get(attributeName).isArray() != null) {
            JSONArray ar = game.get(attributeName).isArray();
            String returnString = "";
            if (ar.size() >= 1)
                returnString = ar.get(0).isString().stringValue();
            for (int j = 1; j < ar.size(); j++) {
                returnString += ", " + ar.get(j).isString().stringValue();
            }
            return returnString;
        }
        return game.get(attributeName).isString().stringValue();
    }

    public Boolean getAttributeBoolean(int i, String attributeName) {
        if (jsonValue == null)
            return null;
        //      Window.alert("jsonValue "+jsonValue);
        //      Window.alert("jsonValue "+i+ " "+jsonValue.get(i));
        JSONObject game = jsonValue.get(i).isObject();
        if (game == null)
            return null;
        //      Window.alert("game "+game);

        if (!game.containsKey(attributeName))
            return null;
        //      Window.alert("game "+game.get(attributeName));
        return game.get(attributeName).isBoolean().booleanValue();
    }

    public int getAttributeInteger(int i, String attributeName) {
        if (jsonValue == null)
            return -1;
        JSONObject game = jsonValue.get(i).isObject();
        if (game == null)
            return -1;
        //         System.out.println("attribute: "+attributeName +" game");
        if (!game.containsKey(attributeName))
            return 0;
        return (int) game.get(attributeName).isNumber().doubleValue();
    }

    public long getAttributeLong(int i, String attributeName) {
        if (jsonValue == null)
            return -1;
        JSONObject game = jsonValue.get(i).isObject();
        if (game == null)
            return -1;
        //      System.out.println("attribute: "+attributeName +" game");
        if (!game.containsKey(attributeName))
            return 0;
        return (long) game.get(attributeName).isNumber().doubleValue();
    }

    public Double getAttributeDouble(int i, String attributeName) {
        if (jsonValue == null)
            return null;
        JSONObject game = jsonValue.get(i).isObject();
        if (game == null)
            return null;
        if (!game.containsKey(attributeName))
            return null;
        return game.get(attributeName).isNumber().doubleValue();
    }

    public JSONObject getGameConfig(int i) {
        if (jsonValue == null)
            return null;
        JSONObject game = jsonValue.get(i).isObject();
        if (game == null)
            return null;
        if (game.get("config") == null)
            return null;
        return game.get("config").isObject();
    }

    //   protected ListGrid lg;
    //   
    //   public void setFetchListGrid(ListGrid lg) {
    //      this.lg = lg;
    //      
    //   }

}