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package org.madore.damlengine;

import java.util.HashMap;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public final class WeblogSummary {

    public static final class EntrySummary {
	int id;
	String date;
	String title;
	public EntrySummary(int id, String date, String title) {
	    this.id = id;
	    this.date = date;
	    this.title = title;
	}
    }

    public HashMap<Integer,EntrySummary> entries;

    private static WeblogSummary singleton;

    private WeblogSummary() {
	this.entries = new HashMap<Integer,EntrySummary>();
    }

    public static WeblogSummary getSummary() {
	if ( singleton != null )
	    return singleton;
	singleton = new WeblogSummary();
	try {
	    final Connection conn = WeblogDatabaseConnection.getConnection();
	    final PreparedStatement selSt
		= conn.prepareStatement("SELECT id , edate , title FROM entries");
	    final ResultSet selRes = selSt.executeQuery();
	    while ( selRes.next() ) {
		int id = selRes.getInt(1);
		String date = selRes.getString(2);
		String title = selRes.getString(3);
		singleton.entries.put(new Integer(id), new EntrySummary(id, date, title));
	    }
	} catch (SQLException e) {
	    throw new RuntimeException(e);
	    // Well, we'll have no summary.  Too bad, but better than abort.
	    // singleton = null;
	}
	return singleton;
    }

}