New class to handle bookmark storage (not utilized yet)
BookmarkManager stores bookmarks in a JSON database in the apps file data directory. It includes helpful methods to export these bookmarks to a backup file and import from that backup file. It also includes a way to import bookmarks from the device's built in bookmark database.
This commit is contained in:
Anthony Restaino
parent
859f76756f
commit
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220
src/acr/browser/lightning/BookmarkManager.java
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220
src/acr/browser/lightning/BookmarkManager.java
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package acr.browser.lightning;
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileNotFoundException;
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import java.io.FileReader;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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import org.json.JSONException;
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import org.json.JSONObject;
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import android.content.Context;
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import android.database.Cursor;
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import android.os.Environment;
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import android.provider.Browser;
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public class BookmarkManager {
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private Context mContext;
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private static final String TITLE = "title";
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private static final String URL = "url";
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private static final String FOLDER = "folder";
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private static final String ORDER = "order";
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private static final String FILE_BOOKMARKS = "bookmarks.dat";
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public BookmarkManager(Context context) {
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mContext = context;
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}
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/**
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* This method adds the the HistoryItem @param item to permanent bookmark
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* storage
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*
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* @param item
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*/
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public void addBookmark(HistoryItem item) {
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File bookmarksExport = new File(mContext.getFilesDir(), FILE_BOOKMARKS);
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try {
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BufferedWriter bookmarkWriter = new BufferedWriter(
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new FileWriter(bookmarksExport, true));
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JSONObject object = new JSONObject();
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object.put(TITLE, item.getTitle());
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object.put(URL, item.getUrl());
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object.put(FOLDER, item.getFolder());
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object.put(ORDER, item.getOrder());
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bookmarkWriter.write(object.toString());
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bookmarkWriter.newLine();
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bookmarkWriter.close();
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} catch (IOException e) {
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e.printStackTrace();
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} catch (JSONException e) {
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e.printStackTrace();
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}
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}
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/**
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* This method adds the @param list of HistoryItems to permanent bookmark
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* storage
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*
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* @param list
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*/
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public void addBookmarkList(List<HistoryItem> list) {
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File bookmarksExport = new File(mContext.getFilesDir(), FILE_BOOKMARKS);
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try {
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BufferedWriter bookmarkWriter = new BufferedWriter(
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new FileWriter(bookmarksExport, true));
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for (HistoryItem item : list) {
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JSONObject object = new JSONObject();
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object.put(TITLE, item.getTitle());
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object.put(URL, item.getUrl());
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object.put(FOLDER, item.getFolder());
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object.put(ORDER, item.getOrder());
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bookmarkWriter.write(object.toString());
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bookmarkWriter.newLine();
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}
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bookmarkWriter.close();
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} catch (IOException e) {
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e.printStackTrace();
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} catch (JSONException e) {
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e.printStackTrace();
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}
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}
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/**
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* This method exports the stored bookmarks to a text file in the device's
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* external download directory
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*/
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public void exportBookmarks() {
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List<HistoryItem> bookmarkList = Utils.getBookmarks(mContext);
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File bookmarksExport = new File(
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Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS),
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"BookmarksExport.txt");
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try {
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BufferedWriter bookmarkWriter = new BufferedWriter(new FileWriter(bookmarksExport,
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false));
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for (HistoryItem item : bookmarkList) {
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JSONObject object = new JSONObject();
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object.put(TITLE, item.getTitle());
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object.put(URL, item.getUrl());
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object.put(FOLDER, item.getFolder());
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object.put(ORDER, item.getOrder());
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bookmarkWriter.write(object.toString());
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bookmarkWriter.newLine();
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}
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bookmarkWriter.close();
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} catch (IOException e) {
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e.printStackTrace();
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} catch (JSONException e) {
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e.printStackTrace();
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}
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}
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/**
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* This method returns a list of all stored bookmarks
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*
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* @return
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*/
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public List<HistoryItem> getBookmarks() {
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List<HistoryItem> bookmarks = new ArrayList<HistoryItem>();
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File bookmarksImport = new File(mContext.getFilesDir(), FILE_BOOKMARKS);
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try {
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BufferedReader bookmarksReader = new BufferedReader(new FileReader(bookmarksImport));
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String line;
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while ((line = bookmarksReader.readLine()) != null) {
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JSONObject object = new JSONObject(line);
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HistoryItem item = new HistoryItem();
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item.setTitle(object.getString(TITLE));
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item.setUrl(object.getString(URL));
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item.setFolder(object.getString(FOLDER));
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item.setOrder(object.getInt(ORDER));
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bookmarks.add(item);
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}
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bookmarksReader.close();
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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} catch (JSONException e) {
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e.printStackTrace();
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}
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return bookmarks;
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}
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/**
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* This method imports all bookmarks that are included in the device's
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* permanent bookmark storage
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*/
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public void importBookmarksFromBrowser() {
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if (mContext.getSharedPreferences(PreferenceConstants.PREFERENCES, 0).getBoolean(
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PreferenceConstants.SYSTEM_BROWSER_PRESENT, false)) {
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List<HistoryItem> bookmarkList = new ArrayList<HistoryItem>();
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String[] columns = new String[] { Browser.BookmarkColumns.TITLE,
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Browser.BookmarkColumns.URL };
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String selection = Browser.BookmarkColumns.BOOKMARK + " = 1";
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Cursor cursor = mContext.getContentResolver().query(Browser.BOOKMARKS_URI, columns,
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selection, null, null);
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String title, url;
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int number = 0;
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if (cursor.moveToFirst()) {
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do {
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number++;
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title = cursor.getString(0);
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url = cursor.getString(1);
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if (title.isEmpty()) {
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title = Utils.getDomainName(url);
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}
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bookmarkList.add(new HistoryItem(url, title));
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} while (cursor.moveToNext());
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}
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cursor.close();
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addBookmarkList(bookmarkList);
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Utils.showToast(mContext,
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number + " " + mContext.getResources().getString(R.string.message_import));
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} else {
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Utils.createInformativeDialog(mContext,
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mContext.getResources().getString(R.string.title_error), mContext
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.getResources().getString(R.string.dialog_import_error));
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}
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}
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/**
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* This method imports the bookmarks from a backup @param file that is
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* located on external storage
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*
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* @param dir
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* @param file
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*/
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public void importBookmarksFromFile(File dir, String file) {
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File bookmarksImport = new File(dir, file);
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try {
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BufferedReader bookmarksReader = new BufferedReader(new FileReader(bookmarksImport));
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String line;
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while ((line = bookmarksReader.readLine()) != null) {
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JSONObject object = new JSONObject(line);
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HistoryItem item = new HistoryItem();
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item.setTitle(object.getString(TITLE));
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item.setUrl(object.getString(URL));
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item.setFolder(object.getString(FOLDER));
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item.setOrder(object.getInt(ORDER));
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addBookmark(item);
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}
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bookmarksReader.close();
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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} catch (JSONException e) {
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e.printStackTrace();
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}
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}
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}
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