/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package csip.sdm;

import java.io.InputStream;
import java.io.Reader;
import java.math.BigDecimal;
import java.net.URL;
import java.sql.Array;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.Date;
import java.sql.NClob;
import java.sql.Ref;
import java.sql.ResultSetMetaData;
import java.sql.RowId;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.sql.SQLWarning;
import java.sql.SQLXML;
import java.sql.Statement;
import java.sql.Time;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;

/**
 *
 * @author <a href="mailto:shaun.case@colostate.edu">Shaun Case</a>
 */
public class SDMResultSet implements java.sql.ResultSet {

    static final String SDM_RESULT_HEAD = "Table";

    ArrayList<ResultRow> rows = new ArrayList<>();
    HashMap<String, Integer> columns = new HashMap<>();
    int rowId;
    int maxRows;
    SDMStatement statement;
    SDMResultSetMetaData resultSetMetaData = new SDMResultSetMetaData(this);

    /**
     * The "lastReadNull" is vital to calling programs. Many test if the last
     * read was empty and branch on the result. This value is required for use
     * by "wasNull()", which is required for all JDBC drivers.
     */
    boolean lastReadNull = false;

    public SDMResultSet(Statement statement, JSONObject results) throws SQLException {
        rowId = -1;
        maxRows = 0;

        if (results.has(SDM_RESULT_HEAD)) {
            JSONArray mainTable;
            try {
                mainTable = results.getJSONArray(SDM_RESULT_HEAD);
            } catch (JSONException ex) {
                Logger.getLogger(SDMResultSet.class.getName()).log(Level.SEVERE, null, ex);
                throw new SQLException("Invalid results from database. No Table object found");
            }
            maxRows = mainTable.length() - 1;  //First row is the column names

            //  Allowing calling code to dispose of the results JSONObject.
            //  Copy data internally for use later, this allows for encapsulation, and future expansion.
            JSONArray tempRow;
            try {
                tempRow = mainTable.getJSONArray(0);

                for (int i = 0; i < tempRow.length(); i++) {
                    columns.put(tempRow.getString(i), i);
                }

                //Read row data
                for (int i = 1; i < mainTable.length(); i++) {
                    tempRow = mainTable.getJSONArray(i);

                    rows.add(new ResultRow(tempRow));
                }
            } catch (JSONException ex) {
                Logger.getLogger(SDMResultSet.class.getName()).log(Level.SEVERE, null, ex);
            }

        }
        //  else 
        //   The USDA REST service for SDM returns an empty JSONObject when the result
        // of the query had no return values.  Assume here that the query suceeded but had no results.
        // This is certainly less than ideal, but what we have to work with.
    }

    @Override
    /*
     * Check on the expected behavior of "absolute".  
     *   Should we throw an exception of row specified is invalid, or just
     * return false??
     */
    public boolean absolute(int row) throws SQLException {
        if ((row <= maxRows) && (row >= 0)) {
            rowId = row;
            return true;
        } else {
            throw new SQLException("Invalid row number specified.");
        }
    }

    @Override
    public void afterLast() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void beforeFirst() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void cancelRowUpdates() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void clearWarnings() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void close() throws SQLException {
        rows.clear();
        columns.clear();
        rowId = -1;
        maxRows = 0;
    }

    @Override
    public void deleteRow() throws SQLException {
        throw new SQLFeatureNotSupportedException("Delete operations are not supported.  This is a read-only database."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public int findColumn(String columnLabel) throws SQLException {
        int ret_val = -1;
        if ((maxRows > 0) && !columns.isEmpty()) {
            if (columns.containsKey(columnLabel)) {
                ret_val = columns.get(columnLabel);
            }
        } else {
            throw new SQLException("ResultSet is empty, no column lables are found.");
        }

        if (ret_val == -1) {
            throw new SQLException("Column was not found in the ResultSet: " + columnLabel);
        }
        return ret_val;
    }

    @Override
    public boolean first() throws SQLException {
        if (maxRows > 0) {
            rowId = 0;
            return true;
        }
        return false;
    }

    @Override
    public Array getArray(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Array getArray(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public InputStream getAsciiStream(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public InputStream getAsciiStream(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public BigDecimal getBigDecimal(int columnIndex, int scale) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.      
    }

    @Override
    public BigDecimal getBigDecimal(String columnLabel, int scale) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public BigDecimal getBigDecimal(int columnIndex) throws SQLException {
        String value = findValue(columnIndex);
        return ((null != value) ? new BigDecimal(value) : BigDecimal.ZERO);
    }

    @Override
    public BigDecimal getBigDecimal(String columnLabel) throws SQLException {
        return getBigDecimal(findColumn(columnLabel));
    }

    @Override
    public InputStream getBinaryStream(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public InputStream getBinaryStream(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Blob getBlob(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Blob getBlob(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean getBoolean(int columnIndex) throws SQLException {
        String value = findValue(columnIndex);
        return ((null != value) ? Boolean.parseBoolean(value) : Boolean.FALSE);
    }

    @Override
    public boolean getBoolean(String columnLabel) throws SQLException {
        return getBoolean(findColumn(columnLabel));
    }

    @Override
    public byte getByte(int columnIndex) throws SQLException {
        String value = findValue(columnIndex);
        return ((null != value) ? Byte.parseByte(value) : Byte.MAX_VALUE);
    }

    @Override
    public byte getByte(String columnLabel) throws SQLException {
        return getByte(findColumn(columnLabel));
    }

    @Override
    public byte[] getBytes(int columnIndex) throws SQLException {
        String value = findValue(columnIndex);
        return ((null != value) ? value.getBytes() : new byte[]{});
    }

    @Override
    public byte[] getBytes(String columnLabel) throws SQLException {
        return getBytes(findColumn(columnLabel));
    }

    @Override
    public Reader getCharacterStream(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Reader getCharacterStream(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Clob getClob(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Clob getClob(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    public int getColumnCount() {
        int ret_val = 0;
        if ((null != columns) && !columns.isEmpty()) {
            ret_val = columns.size();
        }

        return ret_val;
    }

    public String getColumnName(int index) throws SQLException {
        return findName(index);
    }

    @Override
    public int getConcurrency() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public String getCursorName() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Date getDate(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Date getDate(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Date getDate(int columnIndex, Calendar cal) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Date getDate(String columnLabel, Calendar cal) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public double getDouble(int columnIndex) throws SQLException {
        String value = findValue(columnIndex);
        return ((null != value) ? Double.parseDouble(value) : Double.NaN);
    }

    @Override
    public double getDouble(String columnLabel) throws SQLException {
        return getDouble(findColumn(columnLabel));
    }

    @Override
    public int getFetchDirection() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void setFetchDirection(int direction) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public int getFetchSize() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void setFetchSize(int rows) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public float getFloat(int columnIndex) throws SQLException {
        String value = findValue(columnIndex);
        return ((null != value) ? Float.parseFloat(value) : Float.NaN);
    }

    @Override
    public float getFloat(String columnLabel) throws SQLException {
        return getFloat(findColumn(columnLabel));
    }

    @Override
    public int getHoldability() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public int getInt(int columnIndex) throws SQLException {
        String value = findValue(columnIndex);
        return ((null != value) ? Integer.parseInt(value) : Integer.MAX_VALUE);
    }

    @Override
    public int getInt(String columnLabel) throws SQLException {
        return getInt(findColumn(columnLabel));
    }

    @Override
    public long getLong(int columnIndex) throws SQLException {
        String value = findValue(columnIndex);
        return ((null != value) ? Long.parseLong(value) : Long.MAX_VALUE);
    }

    @Override
    public long getLong(String columnLabel) throws SQLException {
        return getLong(findColumn(columnLabel));
    }

    @Override
    public ResultSetMetaData getMetaData() throws SQLException {        
        return this.resultSetMetaData;     
    }

    @Override
    public Reader getNCharacterStream(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Reader getNCharacterStream(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public NClob getNClob(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public NClob getNClob(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public String getNString(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public String getNString(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Object getObject(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Object getObject(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Object getObject(int columnIndex, Map<String, Class<?>> map) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Object getObject(String columnLabel, Map<String, Class<?>> map) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public <T> T getObject(int columnIndex, Class<T> type) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public <T> T getObject(String columnLabel, Class<T> type) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Ref getRef(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Ref getRef(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public int getRow() throws SQLException {
        return rowId;
    }

    @Override
    public RowId getRowId(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public RowId getRowId(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public SQLXML getSQLXML(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public SQLXML getSQLXML(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public short getShort(int columnIndex) throws SQLException {
        String value = findValue(columnIndex);
        return ((null != value) ? Short.parseShort(value) : Short.MAX_VALUE);
    }

    @Override
    public short getShort(String columnLabel) throws SQLException {
        return getShort(findColumn(columnLabel));
    }

    @Override
    public Statement getStatement() throws SQLException {
        return statement;
    }

    @Override
    public String getString(int columnIndex) throws SQLException {
        String value = findValue(columnIndex);
        return ((null != value) ? value : "");
    }

    @Override
    public String getString(String columnLabel) throws SQLException {
        return getString(findColumn(columnLabel));
    }

    @Override
    public Time getTime(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Time getTime(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Time getTime(int columnIndex, Calendar cal) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Time getTime(String columnLabel, Calendar cal) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Timestamp getTimestamp(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Timestamp getTimestamp(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Timestamp getTimestamp(int columnIndex, Calendar cal) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public Timestamp getTimestamp(String columnLabel, Calendar cal) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public int getType() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public URL getURL(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public URL getURL(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public InputStream getUnicodeStream(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public InputStream getUnicodeStream(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public SQLWarning getWarnings() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void insertRow() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean isAfterLast() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean isBeforeFirst() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean isClosed() throws SQLException {
        return false;
    }

    @Override
    public boolean isFirst() throws SQLException {
        return (rowId == 0);
    }

    @Override
    public boolean isLast() throws SQLException {
        return (rowId == (maxRows - 1));
    }

    @Override
    public boolean isWrapperFor(Class<?> iface) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean last() throws SQLException {
        if (maxRows > 0) {
            rowId = maxRows - 1;
            return true;
        }

        return false;
    }

    @Override
    public void moveToCurrentRow() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void moveToInsertRow() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean next() throws SQLException {
        if ((maxRows > 0) && (rowId < (maxRows - 1))) {
            rowId++;
            return true;
        }

        return false;
    }

    @Override
    public boolean previous() throws SQLException {
        if ((maxRows > 0) && (rowId > 0)) {
            rowId--;
            return true;
        }

        return false;
    }

    @Override
    public void refreshRow() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean relative(int rows) throws SQLException {
        if ((maxRows > 0) && ((rowId + rows) < maxRows)) {
            rowId += rows;
            return true;
        }

        return false;
    }

    @Override
    public boolean rowDeleted() throws SQLException {
        return false;
    }

    @Override
    public boolean rowInserted() throws SQLException {
        return false;
    }

    @Override
    public boolean rowUpdated() throws SQLException {
        return false;
    }

    @Override
    public <T> T unwrap(Class<T> iface) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateArray(int columnIndex, Array x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateArray(String columnLabel, Array x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateAsciiStream(int columnIndex, InputStream x, int length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateAsciiStream(String columnLabel, InputStream x, int length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateAsciiStream(int columnIndex, InputStream x, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateAsciiStream(String columnLabel, InputStream x, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateAsciiStream(int columnIndex, InputStream x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateAsciiStream(String columnLabel, InputStream x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBigDecimal(int columnIndex, BigDecimal x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBigDecimal(String columnLabel, BigDecimal x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBinaryStream(int columnIndex, InputStream x, int length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBinaryStream(String columnLabel, InputStream x, int length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBinaryStream(int columnIndex, InputStream x, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBinaryStream(String columnLabel, InputStream x, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBinaryStream(int columnIndex, InputStream x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBinaryStream(String columnLabel, InputStream x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBlob(int columnIndex, Blob x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBlob(String columnLabel, Blob x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBlob(int columnIndex, InputStream inputStream, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBlob(String columnLabel, InputStream inputStream, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBlob(int columnIndex, InputStream inputStream) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBlob(String columnLabel, InputStream inputStream) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBoolean(int columnIndex, boolean x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBoolean(String columnLabel, boolean x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateByte(int columnIndex, byte x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateByte(String columnLabel, byte x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBytes(int columnIndex, byte[] x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateBytes(String columnLabel, byte[] x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateCharacterStream(int columnIndex, Reader x, int length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateCharacterStream(String columnLabel, Reader reader, int length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateCharacterStream(int columnIndex, Reader x, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateCharacterStream(String columnLabel, Reader reader, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateCharacterStream(int columnIndex, Reader x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateCharacterStream(String columnLabel, Reader reader) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateClob(int columnIndex, Clob x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateClob(String columnLabel, Clob x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateClob(int columnIndex, Reader reader, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateClob(String columnLabel, Reader reader, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateClob(int columnIndex, Reader reader) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateClob(String columnLabel, Reader reader) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateDate(int columnIndex, Date x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateDate(String columnLabel, Date x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateDouble(int columnIndex, double x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateDouble(String columnLabel, double x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateFloat(int columnIndex, float x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateFloat(String columnLabel, float x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateInt(int columnIndex, int x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateInt(String columnLabel, int x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateLong(int columnIndex, long x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateLong(String columnLabel, long x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNCharacterStream(int columnIndex, Reader x, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNCharacterStream(String columnLabel, Reader reader, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNCharacterStream(int columnIndex, Reader x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNCharacterStream(String columnLabel, Reader reader) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNClob(int columnIndex, NClob nClob) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNClob(String columnLabel, NClob nClob) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNClob(int columnIndex, Reader reader, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNClob(String columnLabel, Reader reader, long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNClob(int columnIndex, Reader reader) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNClob(String columnLabel, Reader reader) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNString(int columnIndex, String nString) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNString(String columnLabel, String nString) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNull(int columnIndex) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateNull(String columnLabel) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateObject(int columnIndex, Object x, int scaleOrLength) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateObject(int columnIndex, Object x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateObject(String columnLabel, Object x, int scaleOrLength) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateObject(String columnLabel, Object x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateRef(int columnIndex, Ref x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateRef(String columnLabel, Ref x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateRow() throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateRowId(int columnIndex, RowId x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateRowId(String columnLabel, RowId x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateSQLXML(int columnIndex, SQLXML xmlObject) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateSQLXML(String columnLabel, SQLXML xmlObject) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateShort(int columnIndex, short x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateShort(String columnLabel, short x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateString(int columnIndex, String x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateString(String columnLabel, String x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateTime(int columnIndex, Time x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateTime(String columnLabel, Time x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateTimestamp(int columnIndex, Timestamp x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public void updateTimestamp(String columnLabel, Timestamp x) throws SQLException {
        throw new SQLFeatureNotSupportedException("Operation not supported."); //To change body of generated methods, choose Tools | Templates.
    }

    @Override
    public boolean wasNull() throws SQLException {
        return lastReadNull;
    }

    private String findValue(int index) throws SQLException {
        String value = rows.get(rowId).getValue(index);
        this.lastReadNull = false;
        if ((null != value) && !value.equalsIgnoreCase("null")) {
            return value;
        } else {
            // The "lastReadNull" is vital to calling programs.  
            //  Many test if the last read was empty and branch on the result.  
            //  This value is required for use by "wasNull()", which is required for all JDBC drivers.
            this.lastReadNull = true;
        }
        return null;
    }

    private String findName(int index) throws SQLException {
        String ret_val = null;
        if ((index <= columns.size()) && (index > 0)) {
            for (String key : columns.keySet()) {
                if (columns.get(key) == (index-1)) {
                    ret_val = key;
                }
            }
        } else {
            throw new SQLException("Invalid column index.");
        }

        return ret_val;
    }

    private class ResultRow {

        private final JSONArray values;

        public ResultRow(JSONArray inputValues) throws JSONException {
            values = inputValues;
        }

        public String getValue(int index) throws SQLException {
            if ((index >= 0) && (index < values.length())) {
                try {
                    return values.getString(index);
                } catch (JSONException ex) {
                    Logger.getLogger(SDMResultSet.class.getName()).log(Level.SEVERE, null, ex);
                    throw new SQLException("Invalid index used in row operation: getValue: " + ex.getMessage());
                }
            } else {
                throw new SQLException("Invalid index used in row operation: getValue");
            }
        }
    }
}