Functional data import from Yahoo Finance news using YQL (Yahoo Query Language) and XPATH. Data is stuffed into MySQL database cs6601 on woodyfolsom.net.

src/net/woodyfolsom/cs6601/p3/dao/HeadlineDao.java

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+package net.woodyfolsom.cs6601.p3.dao;
+
+import java.util.Date;
+import java.util.List;
+
+import net.woodyfolsom.cs6601.p3.domain.Headline;
+
+public interface HeadlineDao {
+	
+	int deleteById(int id);
+	int insert(Headline player);
+	
+	Headline select(int id);
+	List<Headline> select(String stock, Date date);
+}

src/net/woodyfolsom/cs6601/p3/dao/HeadlineDaoImpl.java

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+package net.woodyfolsom.cs6601.p3.dao;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.Date;
+import java.util.List;
+
+import javax.sql.DataSource;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.core.simple.ParameterizedRowMapper;
+import org.springframework.stereotype.Repository;
+
+import net.woodyfolsom.cs6601.p3.domain.Headline;
+
+@Repository
+public class HeadlineDaoImpl implements HeadlineDao {
+	private static final String DELETE_BY_ID_STMT = "DELETE from headlines WHERE id = ?";
+	
+	private static final String INSERT_STMT = "INSERT INTO headlines (text, date, stock, dataset) values (?, ?, ?, ?)";
+	
+	private static final String SELECT_BY_ID_QRY = "SELECT * from headlines WHERE id = ?";
+	private static final String SELECT_BY_STOCK_QRY = "SELECT * from headlines WHERE stock = ? AND date = ?";
+
+	private JdbcTemplate jdbcTemplate;
+	
+	public int deleteById(int headlineId) {
+		return jdbcTemplate.update(DELETE_BY_ID_STMT,
+				new RequestMapper(), headlineId);
+	}
+	
+	public int insert(Headline headline) {
+		return jdbcTemplate.update(INSERT_STMT, headline.getText(), headline.getDate(), headline.getStock(), headline.getDataset());
+	}
+	
+	public Headline select(int headlineId) {
+		return jdbcTemplate.queryForObject(SELECT_BY_ID_QRY,
+				new RequestMapper(), headlineId);
+	}
+	
+	public List<Headline> select(String stock, Date date) {
+		return jdbcTemplate.query(SELECT_BY_STOCK_QRY,
+				new RequestMapper(), stock, date);
+	}
+	
+	@Autowired
+	public void createTemplate(DataSource dataSource) {
+		this.jdbcTemplate = new JdbcTemplate(dataSource);
+	}
+
+	private class RequestMapper implements ParameterizedRowMapper<Headline> {
+
+		@Override
+		public Headline mapRow(ResultSet rs, int arg1) throws SQLException {
+			Headline headline = new Headline();
+			return headline;
+		}
+
+	}
+}