/*
 * This source is part of the
 *      _____  ___   ____
 *  __ / / _ \/ _ | / __/___  _______ _
 * / // / , _/ __ |/ _/_/ _ \/ __/ _ `/
 * \___/_/|_/_/ |_/_/ (_)___/_/  \_, /
 *                              /___/
 * repository.
 *
 * Copyright (C) 2012-2015 Benoit 'BoD' Lubek (BoD@JRAF.org)
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.jraf.androidcontentprovidergenerator.sample.provider.base;

import java.util.Date;
import java.util.HashMap;

import android.database.Cursor;
import android.database.CursorWrapper;
import android.provider.BaseColumns;

public abstract class AbstractCursor extends CursorWrapper {
    private final HashMap<String, Integer> mColumnIndexes;

    public AbstractCursor(Cursor cursor) {
        super(cursor);
        mColumnIndexes = new HashMap<String, Integer>(cursor.getColumnCount() * 4 / 3, .75f);
    }

    public abstract long getId();

    protected int getCachedColumnIndexOrThrow(String colName) {
        Integer index = mColumnIndexes.get(colName);
        if (index == null) {
            index = getColumnIndexOrThrow(colName);
            mColumnIndexes.put(colName, index);
        }
        return index;
    }

    public String getStringOrNull(String colName) {
        int index = getCachedColumnIndexOrThrow(colName);
        if (isNull(index)) return null;
        return getString(index);
    }

    public Integer getIntegerOrNull(String colName) {
        int index = getCachedColumnIndexOrThrow(colName);
        if (isNull(index)) return null;
        return getInt(index);
    }

    public Long getLongOrNull(String colName) {
        int index = getCachedColumnIndexOrThrow(colName);
        if (isNull(index)) return null;
        return getLong(index);
    }

    public Float getFloatOrNull(String colName) {
        int index = getCachedColumnIndexOrThrow(colName);
        if (isNull(index)) return null;
        return getFloat(index);
    }

    public Double getDoubleOrNull(String colName) {
        int index = getCachedColumnIndexOrThrow(colName);
        if (isNull(index)) return null;
        return getDouble(index);
    }

    public Boolean getBooleanOrNull(String colName) {
        int index = getCachedColumnIndexOrThrow(colName);
        if (isNull(index)) return null;
        return getInt(index) != 0;
    }

    public Date getDateOrNull(String colName) {
        int index = getCachedColumnIndexOrThrow(colName);
        if (isNull(index)) return null;
        return new Date(getLong(index));
    }

    public byte[] getBlobOrNull(String colName) {
        int index = getCachedColumnIndexOrThrow(colName);
        if (isNull(index)) return null;
        return getBlob(index);
    }
}
