Restructure QueryResult

The QueryResult now has the ColumnDefinitions as a main property.

src/main/java/at/compax/tools/sql/SqlExecutor.java

@@ -6,6 +6,7 @@ import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.ResultSetMetaData;
 import java.sql.SQLException;
+import java.sql.SQLSyntaxErrorException;
 import java.sql.SQLWarning;
 import java.sql.Statement;
 import java.sql.Types;
@@ -19,6 +20,7 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 
 import at.compax.tools.sql.model.QueryParameter;
 import at.compax.tools.sql.model.QueryResult;
+import at.compax.tools.sql.model.QueryResult.ColumnDefinition;
 import at.compax.tools.sql.model.QueryResult.QueryResultBuilder;
 import at.compax.tools.sql.model.QueryResult.Row;
 import at.compax.tools.sql.model.QueryResult.Row.Column;
@@ -91,8 +93,10 @@ public class SqlExecutor {
 					} else if (object instanceof Long) {
 						stmt.setLong(parameterIndex, (Long) object);
 					} else {
-						String message = "Unhandled paramter type: " + object.getClass().getName();
-						throw new IllegalArgumentException(message);
+						stmt.setString(parameterIndex, (String) object);
+						String message = String.format("Unhandled paramter type <%s>.  Defaulting to String",
+								object.getClass().getName());
+						log.warn(message);
 					}
 				} else {
 					log.warn("parameter is null");
@@ -123,15 +127,18 @@ public class SqlExecutor {
 
 		List<Row> rows = new Vector<Row>();
 		while (rs.next()) {
+			ResultSetMetaData metaData = rs.getMetaData();
+
+			if (rs.isFirst()) {
+				queryResultBuilder.columnDefinitions(getColumnDefinitions(metaData));
+			}
+
 			RowBuilder rowBuilder = Row.builder();
 			List<Column> columns = new Vector<Column>();
 
-			ResultSetMetaData metaData = rs.getMetaData();
 			int columnCount = metaData.getColumnCount();
-
 			for (int columnIndex = 1; columnIndex <= columnCount; columnIndex++) {
 				ColumnBuilder columnBuilder = Column.builder();
-				columnBuilder.name(metaData.getColumnLabel(columnIndex));
 
 				int columnType = metaData.getColumnType(columnIndex);
 				if (columnType == Types.VARCHAR) {
@@ -139,8 +146,8 @@ public class SqlExecutor {
 				} else if (columnType == Types.NUMERIC) {
 					columnBuilder.value(rs.getLong(columnIndex));
 				} else {
-					String message = "Unhandled column type type: " + columnType;
-					throw new IllegalArgumentException(message);
+					String message = String.format("Unhandled column type <%s>.  Defaulting to String", rs.getMetaData().getColumnTypeName(columnIndex));
+					log.warn(message);
 				}
 
 				columns.add(columnBuilder.build());
@@ -153,6 +160,21 @@ public class SqlExecutor {
 		return queryResultBuilder.rows(rows).build();
 	}
 
+	private static Vector<ColumnDefinition> getColumnDefinitions(ResultSetMetaData metaData) throws SQLException {
+		Vector<ColumnDefinition> columnDefinitions = new Vector<ColumnDefinition>();
+		int columnCount = metaData.getColumnCount();
+
+		for (int columnIndex = 1; columnIndex <= columnCount; columnIndex++) {
+			columnDefinitions.add(ColumnDefinition.builder() //
+					.index(columnIndex) //
+					.name(metaData.getColumnLabel(columnIndex)) //
+					.type(metaData.getColumnTypeName(columnIndex)) //
+					.build());
+		}
+
+		return columnDefinitions;
+	}
+
 	private static void handleUserErrors(Connection conn, String sql, Statement stmt)
 			throws SQLException, SqlExecutionException {
 		SQLWarning warnings = stmt.getWarnings();
@@ -165,6 +187,7 @@ public class SqlExecutor {
 	}
 
 	private static List<UserError> parseUserErrors(Connection conn) throws SQLException {
+		log.debug("Retrieving user errors");
 		String userErrorsSql = "select name, type, sequence, line, position, text, attribute, message_number from user_errors where type <> 'JAVA CLASS' order by sequence";
 		boolean first = true;
 

src/main/java/at/compax/tools/sql/main/Main.java

@@ -135,6 +135,7 @@ public class Main {
 
 			@Cleanup
 			Connection conn = getConnection(host, port, sid, username, password);
+			log.info("Waiting for input...");
 
 			BufferedReader br = new BufferedReader(new InputStreamReader(System.in, Charset.forName("UTF-8")));
 			String line;

src/main/java/at/compax/tools/sql/model/QueryResult.java

@@ -14,6 +14,19 @@ import lombok.ToString;
 @ToString
 @JsonInclude(JsonInclude.Include.NON_NULL)
 public class QueryResult {
+	@Getter
+	@Builder
+	@ToString
+	@JsonInclude(JsonInclude.Include.NON_NULL)
+	public static class ColumnDefinition {
+		@JsonProperty("index")
+		private int index;
+		@JsonProperty("name")
+		private String name;
+		@JsonProperty("type")
+		private String type;
+	}
+
 	@Getter
 	@Builder
 	@ToString
@@ -24,8 +37,6 @@ public class QueryResult {
 		@ToString
 		@JsonInclude(JsonInclude.Include.NON_NULL)
 		public static class Column {
-			@JsonProperty("name")
-			private String name;
 			@JsonProperty("value")
 			private Object value;
 		}
@@ -34,6 +45,7 @@ public class QueryResult {
 		private List<Column> columns;
 	}
 
+	private List<ColumnDefinition> columnDefinitions;
 	@JsonProperty("rows")
 	private List<Row> rows;
 	@JsonProperty("userErrors")