io.samsungsami.example.SAMInBLEws.SAMIDeviceManager.java Source code

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Here is the source code for io.samsungsami.example.SAMInBLEws.SAMIDeviceManager.java

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/*
 * Copyright (C) 2015 Samsung Electronics Co., Ltd.
 *
 * Licensed 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.
 */

package io.samsungsami.example.SAMInBLEws;

import io.samsungsami.model.DeviceArray;

import java.io.IOException;
import java.util.ArrayList;

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

import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;

import android.util.Log;

public class SAMIDeviceManager {
    public ArrayList<SAMIDeviceWrapper> userDevices = new ArrayList<SAMIDeviceWrapper>();
    private static final String TAG = SAMIDeviceManager.class.getName();

    public SAMIDeviceManager() {
        clearCache();
    }

    /**
     * Clear the cache of devices in memory
     */
    public void clearCache() {
        userDevices.clear();
    }

    /**
     * Loads a new set of devices
     * @param result result from the SAMI users devices API call
     */
    public void updateDevices(JSONObject result) {
        JSONArray jsonData = null;
        try {
            jsonData = result.getJSONObject("data").getJSONArray("devices");
        } catch (Exception e) {
            Log.d(TAG, "Error parsing result to get devices.");
        }
        clearCache();

        if (jsonData != null) {
            for (int i = 0; i < jsonData.length(); i++) {
                JSONObject device;
                try {
                    device = (JSONObject) jsonData.getJSONObject(i);
                    userDevices.add(new SAMIDeviceWrapper(device.getString("dtid"), device.getString("id"),
                            device.getString("name")));
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    /**
     * Loads the list of a user's devices
     * @param deviceArray
     * @param storeIt
     */
    public void updateDevices(DeviceArray deviceArray) {
        clearCache();
        if (deviceArray != null) {
            for (io.samsungsami.model.Device device : deviceArray.getDevices()) {
                userDevices.add(new SAMIDeviceWrapper(device.getDtid(), device.getId(), device.getName()));
            }
        }
    }

    /**
     * Loads a single user's devices
     * @param device
     * @param storeIt
     */
    public void updateDevices(io.samsungsami.model.Device device) {
        clearCache();
        userDevices.add(new SAMIDeviceWrapper(device.getDtid(), device.getId(), device.getName()));
    }

    /**
     * Returns a JSON string from a credentials object
     * @return
     */
    public static String toJson(io.samsungsami.model.Device device) {
        ObjectMapper mapper = new ObjectMapper();
        String json = null;
        try {
            json = mapper.writeValueAsString(device);
        } catch (JsonGenerationException ex) {
            ex.printStackTrace();
        } catch (JsonMappingException ex) {
            ex.printStackTrace();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
        return json;
    }

    /**
     * Returns if the current stack has devices
     * @return
     */
    public boolean hasDevices() {
        return userDevices.size() > 0;
    }

    /**
     * Returns a list of devices from the current devices stack
     * @param dtid device type to filter
     * @return
     */
    public ArrayList<SAMIDeviceWrapper> getDevicesByType(String dtid) {
        ArrayList<SAMIDeviceWrapper> result = new ArrayList<SAMIDeviceWrapper>();
        for (SAMIDeviceWrapper device : userDevices) {
            if (device.deviceTypeId.equalsIgnoreCase(dtid)) {
                result.add(device);
            }
        }
        return result;
    }

    /**
     * Get an array for listpreference entries
     * @return
     */
    public CharSequence[] getCharSequenceEntries() {
        CharSequence[] entries = new CharSequence[userDevices.size() + 1];
        entries[0] = "";
        for (int i = 0; i < userDevices.size(); i++) {
            entries[i + 1] = userDevices.get(i).name;
        }
        return entries;
    }

    /**
     * Get an array for listpreference values
     * @return
     */
    public CharSequence[] getCharSequenceEntriesValues() {
        CharSequence[] entries = new CharSequence[userDevices.size() + 1];
        entries[0] = "";
        for (int i = 0; i < userDevices.size(); i++) {
            entries[i + 1] = userDevices.get(i).id;
        }
        return entries;
    }

}