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/*
 * Copyright 2013 serso aka se.solovyev
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 * Contact details
 *
 * Email: [email protected]
 * Site:  http://se.solovyev.org
 */

package org.solovyev.android.view;

import android.graphics.drawable.Drawable;
import org.solovyev.common.Converter;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.io.InputStream;

/**
 * User: serso
 * Date: 5/29/12
 * Time: 11:20 PM
 */
public class DrawableFromIsConverter implements Converter {

	@Nonnull
	private static final DrawableFromIsConverter instance = new DrawableFromIsConverter("instance");

	@Nonnull
	private final String name;

	@Nullable
	private final Drawable defaultDrawable;

	public DrawableFromIsConverter(@Nonnull String name) {
		this(name, null);
	}

	public DrawableFromIsConverter(@Nonnull String name, @Nullable Drawable defaultDrawable) {
		this.name = name;
		this.defaultDrawable = defaultDrawable;
	}

	@Nonnull
	public static DrawableFromIsConverter getInstance() {
		return instance;
	}

	@Nonnull
	@Override
	public Drawable convert(@Nonnull InputStream inputStream) {
		Drawable result = Drawable.createFromStream(inputStream, name);

		if (result == null) {
			result = defaultDrawable;
		}

		if (result == null) {
			throw new DrawableConversionFailedException();
		}

		return result;
	}

	public static class DrawableConversionFailedException extends RuntimeException {

	}
}