FileSystemAnnotationIOFactory.java

/*
 * Copyright (c) 2014 Oculus Info Inc. http://www.oculusinfo.com/
 *
 * Released under the MIT License.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package com.oculusinfo.annotation.io.impl;

import com.oculusinfo.annotation.io.AnnotationIO;
import com.oculusinfo.factory.ConfigurableFactory;
import com.oculusinfo.factory.properties.StringProperty;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.List;


public class FileSystemAnnotationIOFactory extends ConfigurableFactory<AnnotationIO> {
	private static final Logger LOGGER = LoggerFactory.getLogger(FileSystemAnnotationIOFactory.class);
	public static final String NAME = "file";

	public static StringProperty ROOT_PATH = new StringProperty("root.path",
		   "Indicates the root path of the tile annotation - a directory.  There is no default for this property.",
		   null);
	public static StringProperty EXTENSION = new StringProperty("extension",
		   "The file extension which the serializer should expect to find on individual tiles.",
		   "avro");

	public FileSystemAnnotationIOFactory(ConfigurableFactory<?> parent, List<String> path) {
		super(NAME, AnnotationIO.class, parent, path);

		addProperty(ROOT_PATH);
		addProperty(EXTENSION);
	}

	@Override
	protected AnnotationIO create() {

		try {
			String rootpath = getPropertyValue(ROOT_PATH).trim();
			String extension = getPropertyValue(EXTENSION);
			AnnotationSource source;

			if (rootpath.startsWith( "file://" )) {
				// a file/directory on the file system
				rootpath = rootpath.substring(7);
				source = new FileSystemAnnotationSource(rootpath, extension);
			} else if (rootpath.startsWith("http://")) {
				rootpath = rootpath.substring(7);
				source = new UrlAnnotationSource(rootpath, extension);
			} else {
				// no prefix / postfix supplied, default to file for legacy support
				source = new FileSystemAnnotationSource(rootpath, extension);
			}
			return new FileSystemAnnotationIO( source );
		}
		catch (Exception e) {
			LOGGER.error("Error trying to create FileBasedPyramidIO", e);
		}
		return null;
	}


}