com.deliciousdroid.platform.TagManager.java Source code

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Here is the source code for com.deliciousdroid.platform.TagManager.java

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/*
 * DeliciousDroid - http://code.google.com/p/DeliciousDroid/
 *
 * Copyright (C) 2010 Matt Schmidt
 *
 * DeliciousDroid 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.
 *
 * DeliciousDroid 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 DeliciousDroid; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

package com.deliciousdroid.platform;

import java.util.ArrayList;

import com.deliciousdroid.providers.TagContent.Tag;

import android.content.ContentValues;
import android.content.Context;
import android.support.v4.content.CursorLoader;
import android.database.Cursor;
import android.text.TextUtils;

public class TagManager {

    public static CursorLoader GetTags(String account, String sortorder, Context context) {
        final String[] projection = new String[] { Tag._ID, Tag.Name, Tag.Count };
        final String selection = Tag.Account + "=?";
        final String[] selectionargs = new String[] { account };

        return new CursorLoader(context, Tag.CONTENT_URI, projection, selection, selectionargs, sortorder);
    }

    public static ArrayList<String> GetTagsAsArray(String account, String sortorder, Context context) {
        String[] projection = new String[] { Tag.Name };
        String selection = Tag.Account + "=?";
        String[] selectionargs = new String[] { account };

        ArrayList<String> result = new ArrayList<String>();

        Cursor c = context.getContentResolver().query(Tag.CONTENT_URI, projection, selection, selectionargs,
                sortorder);

        if (c.moveToFirst()) {
            int nameColumn = c.getColumnIndex(Tag.Name);

            do {
                result.add(c.getString(nameColumn));
            } while (c.moveToNext());
        }

        c.close();

        return result;
    }

    public static void AddTag(Tag tag, String account, Context context) {
        final ContentValues values = new ContentValues();

        values.put(Tag.Name, tag.getTagName());
        values.put(Tag.Count, tag.getCount());
        values.put(Tag.Account, account);

        context.getContentResolver().insert(Tag.CONTENT_URI, values);
    }

    public static void BulkInsert(ArrayList<Tag> list, String account, Context context) {
        int tagsize = list.size();
        ContentValues[] tcv = new ContentValues[tagsize];

        for (int i = 0; i < tagsize; i++) {
            Tag t = list.get(i);

            ContentValues values = new ContentValues();

            values.put(Tag.Name, t.getTagName());
            values.put(Tag.Count, t.getCount());
            values.put(Tag.Account, account);

            tcv[i] = values;
        }

        context.getContentResolver().bulkInsert(Tag.CONTENT_URI, tcv);
    }

    public static void UpsertTag(Tag tag, String account, Context context) {
        final String[] projection = new String[] { Tag.Name, Tag.Count };
        final String selection = Tag.Name + "=? AND " + Tag.Account + "=?";
        final String[] selectionargs = new String[] { tag.getTagName(), account };

        final Cursor c = context.getContentResolver().query(Tag.CONTENT_URI, projection, selection, selectionargs,
                null);

        if (c.moveToFirst()) {
            final int countColumn = c.getColumnIndex(Tag.Count);
            final int count = c.getInt(countColumn);

            tag.setCount(count + 1);
            UpdateTag(tag, account, context);
        } else {
            tag.setCount(1);
            AddTag(tag, account, context);
        }
        c.close();
    }

    public static void UpdateTag(Tag tag, String account, Context context) {

        final String selection = Tag.Name + "=? AND " + Tag.Account + "=?";
        final String[] selectionargs = new String[] { tag.getTagName(), account };

        final ContentValues values = new ContentValues();
        values.put(Tag.Count, tag.getCount());

        context.getContentResolver().update(Tag.CONTENT_URI, values, selection, selectionargs);
    }

    public static void UpleteTag(Tag tag, String account, Context context) {
        final String[] projection = new String[] { Tag.Name, Tag.Count };
        final String selection = Tag.Name + "=? AND " + Tag.Account + "=?";
        final String[] selectionargs = new String[] { tag.getTagName(), account };

        final Cursor c = context.getContentResolver().query(Tag.CONTENT_URI, projection, selection, selectionargs,
                null);

        if (c.moveToFirst()) {
            final int countColumn = c.getColumnIndex(Tag.Count);
            final int count = c.getInt(countColumn);

            if (count > 1) {
                tag.setCount(count - 1);
                UpdateTag(tag, account, context);
            } else {
                DeleteTag(tag, account, context);
            }
        }
        c.close();
    }

    public static void DeleteTag(Tag tag, String account, Context context) {
        final String selection = Tag.Name + "=? AND " + Tag.Account + "=?";
        final String[] selectionargs = new String[] { tag.getTagName(), account };

        context.getContentResolver().delete(Tag.CONTENT_URI, selection, selectionargs);
    }

    public static void TruncateTags(String account, Context context) {

        final String selection = Tag.Account + "=?";
        final String[] selectionargs = new String[] { account };

        context.getContentResolver().delete(Tag.CONTENT_URI, selection, selectionargs);
    }

    public static void TruncateOldTags(ArrayList<String> accounts, Context context) {

        final ArrayList<String> selectionList = new ArrayList<String>();

        for (String s : accounts) {
            selectionList.add(Tag.Account + " <> '" + s + "'");
        }

        final String selection = TextUtils.join(" AND ", selectionList);

        context.getContentResolver().delete(Tag.CONTENT_URI, selection, null);
    }

    public static CursorLoader SearchTags(String query, String username, Context context) {
        final String[] projection = new String[] { Tag._ID, Tag.Name, Tag.Count };
        String selection = null;

        final String sortorder = Tag.Name + " ASC";
        final ArrayList<String> selectionlist = new ArrayList<String>();

        ArrayList<String> queryList = new ArrayList<String>();

        for (String s : query.split(" ")) {
            queryList.add(Tag.Name + " LIKE ?");
            selectionlist.add("%" + s + "%");
        }

        selectionlist.add(username);

        if (query != null && query != "") {
            selection = "(" + TextUtils.join(" OR ", queryList) + ")" + " AND " + Tag.Account + "=?";
        } else {
            selection = Tag.Account + "=?";
        }

        return new CursorLoader(context, Tag.CONTENT_URI, projection, selection,
                selectionlist.toArray(new String[] {}), sortorder);
    }
}