com.jeffreyawest.weblogic.rest.WebLogicDemoRestAdapter.java Source code

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Here is the source code for com.jeffreyawest.weblogic.rest.WebLogicDemoRestAdapter.java

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/*
 * *************************************************************************
 *
 * Copyright (c) 2013 - Jeffrey A. West Designs
 *
 * This code is provided for example purposes only.  Neither Oracle nor
 * Jeffrey A. West assume any responsibility or liability for the consequences
 *  of using this code. If you choose to use this code for any reason,
 * including but not limited to its use as an example you do so at your own
 * risk and without the support of Oracle.
 *
 * This code is provided under the following licenses:
 *  - GNU General Public License (GPL-2.0)
 *
 * **************************************************************************
 */

package com.jeffreyawest.weblogic.rest;

import android.util.Log;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.jeffreyawest.weblogic.entity.Application;
import com.jeffreyawest.weblogic.entity.Cluster;
import com.jeffreyawest.weblogic.entity.Datasource;
import com.jeffreyawest.weblogic.entity.Server;
import com.jeffreyawest.weblogic.entity.WebLogicEntity;
import com.jeffreyawest.weblogic.monitor.WebLogicMonitor;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

/**
 * Created by jeffreyawest on 8/17/13.
 */
public class WebLogicDemoRestAdapter extends WebLogicRestAdapter {

    private static final String LOG_TAG = "WebLogicDemoRestAdapter";
    private HashMap<String, Server> servers;
    private HashMap<String, Cluster> clusters;
    private HashMap<String, Datasource> datasources;
    private HashMap<String, Application> applications;
    private HashMap<Class<? extends WebLogicEntity>, HashMap<String, ? extends WebLogicEntity>> entityHashMap;

    public WebLogicDemoRestAdapter() {

        entityHashMap = new HashMap<Class<? extends WebLogicEntity>, HashMap<String, ? extends WebLogicEntity>>(7);

        try {
            servers = initObjects("servers.json", Server.class);
            entityHashMap.put(Server.class, servers);

            clusters = initObjects("clusters.json", Cluster.class);
            entityHashMap.put(Cluster.class, clusters);

            applications = initObjects("applications.json", Application.class);
            entityHashMap.put(Application.class, applications);

            datasources = initObjects("datasources.json", Datasource.class);
            entityHashMap.put(Datasource.class, datasources);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private String getFileData(String assetName) throws IOException {

        String returnMe = null;
        InputStream is = null;

        try {

            is = WebLogicMonitor.getInstance().getResources().getAssets().open(assetName);
            byte[] buffer = new byte[is.available()];
            int bytesRead = is.read(buffer);

            if (bytesRead != buffer.length) {
                throw new IOException("Read [" + bytesRead + "] bytes but expected [" + buffer.length + "]");
            }
            is.close();
            returnMe = new String(buffer);
        } finally {
            if (is != null) {
                try {
                    is.close();
                } catch (Exception ignore) {
                }
            }
        }
        return returnMe;
    }

    private <T extends WebLogicEntity> HashMap<String, T> initObjects(String assetFileName, Class<T> theClass) {

        HashMap<String, T> returnMe = new HashMap<String, T>(7);

        JSONObject jsonMessage = null;
        ObjectMapper om = new ObjectMapper();

        try {
            String json = getFileData(assetFileName);
            jsonMessage = new JSONObject(json);

            Log.v(LOG_TAG, "Class: " + theClass + " JSON: " + jsonMessage.toString(2));

            JSONArray array = jsonMessage.getJSONObject("body").getJSONArray("items");

            for (int i = 0; i < array.length(); i++) {
                T theType = om.readValue(array.getString(i), theClass);
                theType.setOriginalJSON(jsonMessage.toString(2));

                returnMe.put(theType.getName(), theType);
            }
        } catch (JSONException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return returnMe;
    }

    @Override
    public <T extends WebLogicEntity> List<T> getResourcesList(Class<T> theClass) {

        return new ArrayList(entityHashMap.get(theClass).values());
    }

    @Override
    public <T extends WebLogicEntity> T getResource(Class<T> theClass, String pName) {

        return (T) entityHashMap.get(theClass).get(pName);
    }
}