package eu.dnetlib.functionality.index.solr;

import jargs.gnu.CmdLineParser;

import org.springframework.context.support.ClassPathXmlApplicationContext;

/**
 * Commandline client for index solr service offline operations.
 * 
 * @author claudio
 * 
 */
public class SolrIndexClient {

	private static void printUsage() {
		System.err.println("Usage: -m <update_schema|... > -i <absoulute_input_file_path> -l <layout>");
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("eu/dnetlib/functionality/index/solr/applicationContext.xml");
																					
		Args parsedArgs = parseArgs(args);

		AbstractIndexSolrClient client = (AbstractIndexSolrClient) context.getBean("offlineSolrIndexClient", AbstractIndexSolrClient.class);

		try {
			try {
				client.prepare(context, parsedArgs);
				client.dispatch(parsedArgs.getMethod(), parsedArgs);
			} catch (IllegalArgumentException e) {
				System.out.println(e.getMessage());
				printUsage();
				System.exit(2);
			}
		} finally {
			context.close();
		}
	}

	private static Args parseArgs(String[] args) {
		CmdLineParser parser = new CmdLineParser();
		CmdLineParser.Option method = parser.addStringOption('m', "method");
		CmdLineParser.Option input = parser.addStringOption('i', "input");
		CmdLineParser.Option layout = parser.addStringOption('l', "layout");
		CmdLineParser.Option solrDataDir = parser.addStringOption('d', "solrDataDir");

		try {
			parser.parse(args);
		} catch (CmdLineParser.OptionException e) {
			System.err.println(e.getMessage());
			printUsage();
			System.exit(2);
		}

		Args res = new Args();
		res.setMethod((String) parser.getOptionValue(method));
		res.setIntput((String) parser.getOptionValue(input));
		res.setLayout((String) parser.getOptionValue(layout));
		res.setSolrDataDir((String) parser.getOptionValue(solrDataDir));
		
		return res;
	}

}