Add JSON parsing for queries

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

@@ -1,5 +1,6 @@
 package at.compax.tools.sql;
 
+import java.io.IOException;
 import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
@@ -11,7 +12,10 @@ import java.sql.Types;
 import java.util.List;
 import java.util.Vector;
 
+import com.fasterxml.jackson.core.JsonParseException;
 import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 
 import at.compax.tools.sql.model.QueryParameter;
 import at.compax.tools.sql.model.QueryResult;
@@ -51,8 +55,23 @@ public class SqlExecutor {
 		return resultBuilder.build();
 	}
 
+	public static QueryResult executeJsonQuery(Connection conn, String json)
+			throws SQLException, JsonParseException, JsonMappingException, IOException {
+		log.debug("Parsing JSON: " + json);
+
+		ObjectMapper mapper = new ObjectMapper();
+		QueryParameter queryParameter = mapper.readValue(json, QueryParameter.class);
+		log.debug("Parsed QueryParamter: " + queryParameter.toString());
+
+		return executeQuery(conn, queryParameter);
+	}
+
 	public static QueryResult executeQuery(Connection conn, QueryParameter parameters) throws SQLException {
-		return executeQuery(conn, parameters.getSql(), parameters.getParameters());
+		if (parameters == null || parameters.getParameters() == null) {
+			return executeQuery(conn, parameters.getSql());
+		} else {
+			return executeQuery(conn, parameters.getSql(), parameters.getParameters().toArray());
+		}
 	}
 
 	public static QueryResult executeQuery(Connection conn, String sql, Object... parameters) throws SQLException {
@@ -61,16 +80,25 @@ public class SqlExecutor {
 		@Cleanup
 		PreparedStatement stmt = conn.prepareStatement(sql);
 
+		if (parameters != null) {
 			int parameterIndex = 1;
 			for (Object object : parameters) {
+				if (object != null) {
 					if (object instanceof String) {
-				stmt.setString(parameterIndex++, (String) object);
-			} else if (object instanceof Integer || object instanceof Long) {
-				stmt.setLong(parameterIndex++, (Long) object);
+						stmt.setString(parameterIndex, (String) object);
+					} else if (object instanceof Integer) {
+						stmt.setInt(parameterIndex, (Integer) object);
+					} else if (object instanceof Long) {
+						stmt.setLong(parameterIndex, (Long) object);
 					} else {
 						String message = "Unhandled paramter type: " + object.getClass().getName();
 						throw new IllegalArgumentException(message);
 					}
+				} else {
+					log.warn("parameter is null");
+				}
+				parameterIndex++;
+			}
 		}
 
 		@Cleanup

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

@@ -17,6 +17,7 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 
 import at.compax.tools.sql.SqlExecutionException;
 import at.compax.tools.sql.SqlExecutor;
+import at.compax.tools.sql.model.QueryParameter;
 import at.compax.tools.sql.model.QueryResult;
 import at.compax.tools.sql.model.Result;
 import at.compax.tools.sql.model.UserError;