Examples with JaqyResultSetMetaData com.teradata.jaqy.connection.JaqyResultSetMetaData used on opensource projects

Example 1 with JaqyResultSetMetaData

use of com.teradata.jaqy.connection.JaqyResultSetMetaData in project jaqy by Teradata.

the class TablePrinter method print.

public long print(JaqyResultSet rs, PrintWriter pw, long limit, JaqyInterpreter interpreter) throws Exception {
    JaqyHelper helper = rs.getHelper();
    // rewind operation.
    if (m_autoShrink && rs.getType() == ResultSet.TYPE_FORWARD_ONLY) {
        JaqyResultSet newRS = ResultSetUtils.copyResultSet(rs, limit, interpreter);
        rs.close();
        rs = newRS;
    }
    JaqyResultSetMetaData metaData = rs.getMetaData();
    int columns = metaData.getColumnCount();
    boolean[] leftAligns = new boolean[columns];
    int[] widths = new int[columns];
    TypeHandler[] handlers = new TypeHandler[columns];
    for (int i = 0; i < columns; ++i) {
        int columnIndex = i + 1;
        int type = metaData.getColumnType(columnIndex);
        leftAligns[i] = isLeftAlign(type);
        handlers[i] = helper.getTypeHandler(rs, i + 1);
    }
    if (m_autoShrink) {
        // 
        for (int i = 0; i < columns; ++i) {
            widths[i] = 0;
            int dispSize = ResultSetUtils.getDisplayWidth(rs, i + 1);
            if (dispSize <= m_columnThreshold)
                widths[i] = dispSize;
        }
        shrink(columns, widths, rs, handlers, limit, interpreter);
    } else {
        // 
        for (int i = 0; i < columns; ++i) {
            widths[i] = ResultSetUtils.getDisplayWidth(rs, i + 1);
            if (widths[i] > m_maxColumnSize)
                widths[i] = m_maxColumnSize;
        }
    }
    // Make sure the title length is considered as well.
    for (int i = 0; i < columns; ++i) {
        String title = metaData.getColumnLabel(i + 1);
        if (widths[i] < title.length())
            widths[i] = title.length();
    }
    if (m_border)
        printBorder(pw, widths);
    // Print the title
    if (m_border)
        pw.print("| ");
    for (int i = 0; i < columns; ++i) {
        String title = metaData.getColumnLabel(i + 1);
        if (i > 0) {
            if (m_border)
                pw.print(" | ");
            else
                pw.print(' ');
        }
        StringUtils.print(pw, title, widths[i], leftAligns[i], (i < (columns - 1)) || m_border);
    }
    if (m_border)
        pw.print(" |");
    pw.println();
    // print the dashes
    if (m_border)
        printBorder(pw, widths);
    else
        printDash(pw, widths);
    long count = 0;
    if (limit == 0)
        limit = Long.MAX_VALUE;
    while (rs.next() && count < limit) {
        ++count;
        if (m_border)
            pw.print("| ");
        for (int i = 0; i < columns; ++i) {
            if (i > 0) {
                if (m_border)
                    pw.print(" | ");
                else
                    pw.print(' ');
            }
            StringUtils.print(pw, handlers[i].getString(rs, i + 1, interpreter), widths[i], leftAligns[i], (i < (columns - 1)) || m_border);
        }
        if (m_border)
            pw.print(" |");
        pw.println();
    }
    if (m_border)
        printBorder(pw, widths);
    return count;
}

Example 2 with JaqyResultSetMetaData

use of com.teradata.jaqy.connection.JaqyResultSetMetaData in project jaqy by Teradata.

the class CSVExporter method export.

@Override
public long export(JaqyResultSet rs, JaqyInterpreter interpreter) throws Exception {
    PrintWriter pw = new PrintWriter(new BufferedWriter(m_out));
    JaqyResultSetMetaData metaData = rs.getMetaData();
    int columns = metaData.getColumnCount();
    TypeHandler[] handlers = new TypeHandler[columns];
    JaqyHelper helper = rs.getHelper();
    CSVPrinter printer = new CSVPrinter(pw, m_format);
    for (int i = 0; i < columns; ++i) {
        // print the header row
        printer.print(metaData.getColumnLabel(i + 1));
        CSVExportInfo fileInfo = m_fileInfoMap.get(i + 1);
        if (fileInfo == null)
            handlers[i] = helper.getTypeHandler(rs, i + 1);
        else
            handlers[i] = new FileHandler(m_file, fileInfo);
    }
    printer.println();
    long count = 0;
    while (rs.next()) {
        ++count;
        for (int i = 0; i < columns; ++i) {
            printer.print(handlers[i].getString(rs, i + 1, interpreter));
        }
        printer.println();
    }
    printer.close();
    return count;
}

Example 3 with JaqyResultSetMetaData

use of com.teradata.jaqy.connection.JaqyResultSetMetaData in project jaqy by Teradata.

the class CSVPrinter method print.

@Override
public long print(JaqyResultSet rs, PrintWriter pw, long limit, JaqyInterpreter interpreter) throws Exception {
    JaqyHelper helper = rs.getHelper();
    JaqyResultSetMetaData metaData = rs.getMetaData();
    int columns = metaData.getColumnCount();
    TypeHandler[] handlers = new TypeHandler[columns];
    @SuppressWarnings("resource") org.apache.commons.csv.CSVPrinter printer = new org.apache.commons.csv.CSVPrinter(pw, m_format);
    for (int i = 0; i < columns; ++i) {
        // print the header row
        printer.print(metaData.getColumnLabel(i + 1));
        handlers[i] = helper.getTypeHandler(rs, i + 1);
    }
    printer.println();
    long count = 0;
    if (limit == 0)
        limit = Long.MAX_VALUE;
    while (rs.next() && count < limit) {
        ++count;
        for (int i = 0; i < columns; ++i) {
            printer.print(handlers[i].getString(rs, i + 1, interpreter));
        }
        printer.println();
    }
    printer.flush();
    return count;
}

Example 4 with JaqyResultSetMetaData

use of com.teradata.jaqy.connection.JaqyResultSetMetaData in project jaqy by Teradata.

the class JsonUtils method print.

public static long print(Globals globals, CookJsonGenerator g, JaqyResultSet rs, long limit) throws SQLException {
    JaqyResultSetMetaData metaData = rs.getMetaData();
    int columns = metaData.getColumnCount();
    String[] headers = new String[columns];
    boolean[] jsonCheck = new boolean[columns];
    for (int i = 0; i < columns; ++i) {
        headers[i] = metaData.getColumnLabel(i + 1);
        jsonCheck[i] = metaData.isJson(i + 1);
    }
    g.writeStartArray();
    long count = 0;
    if (limit == 0)
        limit = Long.MAX_VALUE;
    while (rs.next() && count < limit) {
        ++count;
        g.writeStartObject();
        for (int i = 0; i < columns; ++i) {
            Object obj = rs.getObject(i + 1);
            if (obj != null && jsonCheck[i]) {
                globals.log(Level.INFO, "Column " + (i + 1) + " is a JSON column: " + obj.getClass());
                String str = null;
                // We only deal with textual form of JSON here.
                if (obj instanceof Clob) {
                    Clob clob = (Clob) obj;
                    str = clob.getSubString(1, (int) clob.length());
                    clob.free();
                } else {
                    str = obj.toString();
                }
                if (str != null) {
                    // Now convert str to JsonValue
                    try {
                        CookJsonParser p = new TextJsonParser(new StringReader(str));
                        p.next();
                        obj = p.getValue();
                        p.close();
                    } catch (Exception ex) {
                        globals.log(Level.INFO, ex);
                    }
                }
            }
            print(g, headers[i], obj);
        }
        g.writeEnd();
    }
    g.writeEnd();
    g.flush();
    return count;
}

Example 5 with JaqyResultSetMetaData

use of com.teradata.jaqy.connection.JaqyResultSetMetaData in project jaqy by Teradata.

the class ProjectColumnList method bind.

public void bind(JaqyResultSet rs, JaqyInterpreter interpreter) throws SQLException {
    int numCols = m_columnList.size();
    ExpNode[] exps = new ExpNode[numCols];
    FullColumnInfo[] columnInfos = new FullColumnInfo[numCols];
    ResultSetMetaData rsmd = rs.getMetaData().getMetaData();
    JaqyHelper helper = rs.getHelper();
    for (int i = 0; i < numCols; ++i) {
        ProjectColumn column = m_columnList.get(i);
        int index = rs.findColumn(column.name);
        columnInfos[i] = ResultSetMetaDataUtils.getColumnInfo(rsmd, index, helper);
        columnInfos[i].name = column.asName;
        columnInfos[i].label = column.asName;
        ColumnNode exp = new ColumnNode(column.name);
        exp.bind(rs, null, interpreter);
        exps[i] = exp;
    }
    m_project = new ExpNodeProject(exps);
    m_meta = new JaqyResultSetMetaData(new InMemoryResultSetMetaData(columnInfos), DummyHelper.getInstance());
}