com.csipsimple.backup.Columns.java Source code

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Here is the source code for com.csipsimple.backup.Columns.java

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/**
 * Copyright (C) 2010-2012 Regis Montoya (aka r3gis - www.r3gis.fr)
 * This file is part of CSipSimple.
 *
 *  CSipSimple is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *  If you own a pjsip commercial license you can also redistribute it
 *  and/or modify it under the terms of the GNU Lesser General Public License
 *  as an android library.
 *
 *  CSipSimple 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with CSipSimple.  If not, see <http://www.gnu.org/licenses/>.
 */
/**
 * This file contains relicensed code from Apache copyright of 
 * Copyright 2010 Google Inc.
 */

package com.csipsimple.backup;

import android.content.ContentValues;
import android.database.Cursor;

import com.csipsimple.utils.Log;

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

import java.util.ArrayList;
import java.util.Arrays;

public class Columns {

    private ArrayList<String> names;

    private enum Type {
        STRING, INT, LONG, FLOAT, DOUBLE, BOOLEAN
    }

    private ArrayList<Type> types;

    public Columns(String[] names, Class<?>[] classes) {
        this.names = new ArrayList<String>(Arrays.asList(names));
        types = new ArrayList<Type>(names.length);
        for (int i = 0; i < names.length; i++) {

            if (classes[i] == String.class) {
                types.add(i, Type.STRING);
            } else if (classes[i] == Integer.TYPE || classes[i] == Integer.class) {
                types.add(i, Type.INT);
            } else if (classes[i] == Long.TYPE || classes[i] == Long.class) {
                types.add(i, Type.LONG);
            } else if (classes[i] == Float.TYPE || classes[i] == Float.class) {
                types.add(i, Type.FLOAT);
            } else if (classes[i] == Double.TYPE || classes[i] == Double.class) {
                types.add(i, Type.DOUBLE);
            } else if (classes[i] == Boolean.TYPE || classes[i] == Boolean.class) {
                types.add(i, Type.BOOLEAN);
            }
        }
    }

    public boolean removeColumn(String columnName) {
        int index = names.indexOf(columnName);
        if (index < 0) {
            return false;
        }
        names.remove(index);
        types.remove(index);
        return true;
    }

    public boolean hasField(Cursor c, String name) {
        int i = c.getColumnIndex(name);
        return ((i != -1) && !c.isNull(i));
    }

    public JSONObject contentValueToJSON(ContentValues cv) {
        JSONObject json = new JSONObject();
        for (int i = 0; i < names.size(); i++) {
            if (!cv.containsKey(names.get(i))) {
                continue;
            }
            try {
                String name = names.get(i);
                switch (types.get(i)) {
                case STRING:
                    json.put(name, cv.getAsString(name));
                    break;
                case INT:
                    json.put(name, cv.getAsInteger(name));
                    break;
                case LONG:
                    json.put(name, cv.getAsLong(name));
                    break;
                case FLOAT:
                    json.put(name, cv.getAsFloat(name));
                    break;
                case DOUBLE:
                    json.put(name, cv.getAsDouble(name));
                    break;
                case BOOLEAN:
                    json.put(name, cv.getAsBoolean(name));
                    break;
                default:
                    Log.w("Col", "Invalid type, can't unserialize " + types.get(i));
                }
            } catch (JSONException e) {
                Log.e("Col", "Invalid type, can't unserialize ", e);
            }
        }

        return json;
    }

    public ContentValues jsonToContentValues(JSONObject j) {
        ContentValues cv = new ContentValues();
        for (int i = 0; i < names.size(); i++) {
            String name = names.get(i);
            switch (types.get(i)) {
            case STRING:
                j2cvString(j, cv, name);
                break;
            case INT:
                j2cvInt(j, cv, name);
                break;
            case LONG:
                j2cvLong(j, cv, name);
                break;
            case FLOAT:
                j2cvFloat(j, cv, name);
                break;
            case DOUBLE:
                j2cvDouble(j, cv, name);
                break;
            case BOOLEAN:
                j2cvBoolean(j, cv, name);
            }
        }

        return cv;
    }

    private static void j2cvInt(JSONObject j, ContentValues cv, String key) {
        try {
            int v = j.getInt(key);
            cv.put(key, v);
        } catch (JSONException e) {
        }
    }

    private static void j2cvLong(JSONObject j, ContentValues cv, String key) {
        try {
            long v = j.getLong(key);
            cv.put(key, v);
        } catch (JSONException e) {
        }
    }

    private static void j2cvString(JSONObject j, ContentValues cv, String key) {
        try {
            String v = j.getString(key);
            cv.put(key, v);
        } catch (JSONException e) {
        }
    }

    private static void j2cvFloat(JSONObject j, ContentValues cv, String key) {
        try {
            float v = (float) j.getDouble(key);
            cv.put(key, v);
        } catch (JSONException e) {
        }
    }

    private static void j2cvDouble(JSONObject j, ContentValues cv, String key) {
        try {
            double v = j.getDouble(key);
            cv.put(key, v);
        } catch (JSONException e) {
        }
    }

    private static void j2cvBoolean(JSONObject j, ContentValues cv, String key) {
        try {
            boolean v = j.getBoolean(key);
            cv.put(key, v);
        } catch (JSONException e) {
        }
    }

}