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package org.ansj.dic;

import org.ansj.dic.impl.File2Stream;
import org.ansj.dic.impl.Jar2Stream;
import org.ansj.dic.impl.Jdbc2Stream;
import org.ansj.dic.impl.Url2Stream;
import org.ansj.exception.LibraryException;

import java.io.InputStream;

/**
 * 将路径转换为流，如果你需要实现自己的加载器请实现这个类，使用这个类可能需要自己依赖第三方包，比如jdbc连接和nutz
 * 
 * @author ansj
 *
 */
public abstract class PathToStream {

	public static InputStream stream(String path) {
		try {
			if (path.startsWith("file://")) {
				return new File2Stream().toStream(path);
			} else if (path.startsWith("jdbc://")) {
				return new Jdbc2Stream().toStream(path);
			} else if (path.startsWith("jar://")) {
				return new Jar2Stream().toStream(path);
			} else if (path.startsWith("class://")) {
				return ((PathToStream) Class.forName(path.substring(8).split("\\|")[0]).newInstance()).toStream(path);
			} else if (path.startsWith("http://")||path.startsWith("https://")) {
				return new Url2Stream().toStream(path);
			} else {
				return new File2Stream().toStream(path);
			}
		} catch (Exception e) {
			throw new LibraryException(e);
		}
	}

	public abstract InputStream toStream(String path);

}