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/*
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* Copyright 2014 A.C.R. Development
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*/
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package acr.browser.lightning;
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import android.content.ContentValues;
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import android.content.Context;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteOpenHelper;
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import java.util.ArrayList;
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import java.util.List;
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public class HistoryDatabaseHandler extends SQLiteOpenHelper {
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// All Static variables
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// Database Version
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private static final int DATABASE_VERSION = 1;
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// Database Name
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public static final String DATABASE_NAME = "historyManager";
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// HistoryItems table name
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public static final String TABLE_HISTORY = "history";
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// HistoryItems Table Columns names
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public static final String KEY_ID = "id";
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public static final String KEY_URL = "url";
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public static final String KEY_TITLE = "title";
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public static SQLiteDatabase mDatabase;
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public HistoryDatabaseHandler(Context context) {
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super(context.getApplicationContext(), DATABASE_NAME, null, DATABASE_VERSION);
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mDatabase = this.getWritableDatabase();
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}
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// Creating Tables
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@Override
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public void onCreate(SQLiteDatabase db) {
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String CREATE_HISTORY_TABLE = "CREATE TABLE " + TABLE_HISTORY + "(" + KEY_ID
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+ " INTEGER PRIMARY KEY," + KEY_URL + " TEXT," + KEY_TITLE + " TEXT" + ")";
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db.execSQL(CREATE_HISTORY_TABLE);
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}
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// Upgrading database
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@Override
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public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
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// Drop older table if existed
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db.execSQL("DROP TABLE IF EXISTS " + TABLE_HISTORY);
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// Create tables again
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onCreate(db);
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}
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public boolean isOpen() {
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if (mDatabase != null) {
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return mDatabase.isOpen();
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} else {
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return false;
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}
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}
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@Override
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public synchronized void close() {
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if (mDatabase != null) {
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mDatabase.close();
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}
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super.close();
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}
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/**
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* All CRUD(Create, Read, Update, Delete) Operations
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*/
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public synchronized void delete(String url) {
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String n = getHistoryItem(url);
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if (n != null) {
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deleteHistoryItem(n);
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}
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}
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public synchronized void visitHistoryItem(String url, String title) {
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mDatabase.delete(TABLE_HISTORY, KEY_URL + " = ?", new String[] { url });
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ContentValues values = new ContentValues();
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values.put(KEY_URL, url);
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values.put(KEY_TITLE, title);
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mDatabase.insert(TABLE_HISTORY, null, values);
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}
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// Adding new item
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public synchronized void addHistoryItem(HistoryItem item) {
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ContentValues values = new ContentValues();
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values.put(KEY_URL, item.getUrl());
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values.put(KEY_TITLE, item.getTitle());
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mDatabase.insert(TABLE_HISTORY, null, values);
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}
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// Getting single item
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String getHistoryItem(String url) {
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Cursor cursor = mDatabase.query(TABLE_HISTORY, new String[] { KEY_ID, KEY_URL, KEY_TITLE },
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KEY_URL + "=?", new String[] { url }, null, null, null, null);
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String m = null;
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if (cursor != null) {
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cursor.moveToFirst();
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m = cursor.getString(0);
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cursor.close();
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}
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// return item
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return m;
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}
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public List<HistoryItem> findItemsContaining(String search) {
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List<HistoryItem> itemList = new ArrayList<HistoryItem>();
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// select query
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String selectQuery = "SELECT * FROM " + TABLE_HISTORY + " WHERE " + KEY_TITLE + " LIKE '%"
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+ search + "%' OR " + KEY_URL + " LIKE '%" + search + "%'";
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Cursor cursor = mDatabase.rawQuery(selectQuery, null);
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// looping through all rows and adding to list
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int n = 0;
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if (cursor.moveToLast()) {
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do {
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HistoryItem item = new HistoryItem();
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item.setID(Integer.parseInt(cursor.getString(0)));
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item.setUrl(cursor.getString(1));
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item.setTitle(cursor.getString(2));
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item.setImageId(R.drawable.ic_history);
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// Adding item to list
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itemList.add(item);
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n++;
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} while (cursor.moveToPrevious() && n < 5);
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}
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cursor.close();
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// return item list
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return itemList;
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}
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public List<HistoryItem> getLastHundredItems() {
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List<HistoryItem> itemList = new ArrayList<HistoryItem>();
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String selectQuery = "SELECT * FROM " + TABLE_HISTORY;
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Cursor cursor = mDatabase.rawQuery(selectQuery, null);
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int counter = 0;
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if (cursor.moveToLast()) {
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do {
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HistoryItem item = new HistoryItem();
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item.setID(Integer.parseInt(cursor.getString(0)));
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item.setUrl(cursor.getString(1));
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item.setTitle(cursor.getString(2));
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item.setImageId(R.drawable.ic_history);
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itemList.add(item);
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counter++;
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} while (cursor.moveToPrevious() && counter < 100);
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}
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cursor.close();
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return itemList;
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}
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public List<HistoryItem> getAllHistoryItems() {
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List<HistoryItem> itemList = new ArrayList<HistoryItem>();
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String selectQuery = "SELECT * FROM " + TABLE_HISTORY;
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Cursor cursor = mDatabase.rawQuery(selectQuery, null);
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if (cursor.moveToFirst()) {
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do {
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HistoryItem item = new HistoryItem();
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item.setID(Integer.parseInt(cursor.getString(0)));
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item.setUrl(cursor.getString(1));
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item.setTitle(cursor.getString(2));
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item.setImageId(R.drawable.ic_history);
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itemList.add(item);
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} while (cursor.moveToNext());
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}
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cursor.close();
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return itemList;
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}
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// Updating single item
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public synchronized int updateHistoryItem(HistoryItem item) {
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ContentValues values = new ContentValues();
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values.put(KEY_URL, item.getUrl());
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values.put(KEY_TITLE, item.getTitle());
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int n = mDatabase.update(TABLE_HISTORY, values, KEY_ID + " = ?",
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new String[] { String.valueOf(item.getId()) });
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// updating row
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return n;
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}
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// Deleting single item
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public synchronized void deleteHistoryItem(String id) {
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mDatabase.delete(TABLE_HISTORY, KEY_ID + " = ?", new String[] { String.valueOf(id) });
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}
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// Getting items Count
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public int getHistoryItemsCount() {
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String countQuery = "SELECT * FROM " + TABLE_HISTORY;
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Cursor cursor = mDatabase.rawQuery(countQuery, null);
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cursor.close();
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// return count
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return cursor.getCount();
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}
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}
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