import java.io.BufferedWriter;

import java.io.FileInputStream;

import java.io.FileWriter;

import java.io.IOException;

import java.util.Iterator;

import java.util.Map.Entry;



import javax.xml.parsers.ParserConfigurationException;



import org.apache.lucene.document.Document;

import org.apache.solr.client.solrj.util.ClientUtils;

import org.apache.solr.common.SolrDocument;

import org.apache.solr.common.SolrInputDocument;

import org.apache.solr.core.SolrConfig;

import org.apache.solr.core.SolrCore;

import org.apache.solr.schema.IndexSchema;

import org.apache.solr.search.SolrIndexSearcher;

import org.apache.solr.update.DocumentBuilder;

import org.xml.sax.SAXException;





public class Foo {



	

	SolrConfig cfg;

	SolrCore core; 

	String solrBase = "/Users/pjaol/tmp/solr/tmp/apache-tomcat-5.5.26/solr/";

	String solrDataDir = solrBase+"/core0/data/"; // your probably not using multicore so you'll have /data/

	String solrSchema = solrBase+"/core0/conf/schema.xml";

	String solrConfig = solrBase+"/core0/conf/solrconfig.xml";

	public static void main(String[] args) {

		Foo f = new Foo();

		try {

			f.init();

		} catch (ParserConfigurationException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		} catch (IOException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		} catch (SAXException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

		

	}

	

	public void init() throws ParserConfigurationException, IOException, SAXException{

		cfg = new SolrConfig(solrBase,"foo", new FileInputStream(solrConfig));

		core = new SolrCore(null,solrDataDir , cfg,

							new IndexSchema(cfg, solrSchema, null));

		

		SolrIndexSearcher searcher = core.newSearcher("foo");

		int mxdocs = searcher.maxDoc();

		

		BufferedWriter writer = new BufferedWriter(new FileWriter("index.xml"));

		writer.write("<add>");

		

		for (int i = 0; i< mxdocs; i++){

			Document luceneDoc = searcher.doc(i);



            SolrDocument sdoc = new SolrDocument();

            DocumentBuilder db = new DocumentBuilder(searcher.getSchema());

            sdoc = db.loadStoredFields(sdoc, luceneDoc);



            Iterator<Entry<String, Object>> it = sdoc.iterator();

            SolrInputDocument sidoc = new SolrInputDocument();

            while (it.hasNext()){

            	Entry<String, Object> et = it.next();

            	if (et.getKey().startsWith("_local")) {

            		continue;

            	}

            	sidoc.addField(et.getKey(), et.getValue());

            }

            ClientUtils.writeXML(sidoc, writer);

		}

		writer.write("</add>");

		writer.close();

		System.exit(0);

	}

	

}