franta-hg@32
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/**
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franta-hg@32
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* SQL-DK
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* Copyright © 2013 František Kučera (frantovo.cz)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package info.globalcode.sql.dk.formatting;
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import info.globalcode.sql.dk.ColorfulPrintWriter;
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import static info.globalcode.sql.dk.ColorfulPrintWriter.*;
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import static info.globalcode.sql.dk.Functions.lpad;
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import static info.globalcode.sql.dk.Functions.rpad;
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import static info.globalcode.sql.dk.Functions.repeat;
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import java.util.List;
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/**
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*
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* @author Ing. František Kučera (frantovo.cz)
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*/
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public class TabularFormatter extends AbstractFormatter {
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public static final String NAME = "tabular"; // bash-completion:formatter
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private static final String HEADER_TYPE_PREFIX = " (";
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private static final String HEADER_TYPE_SUFFIX = ")";
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private ColorfulPrintWriter out;
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private boolean firstResult = true;
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private int[] columnWidth;
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franta-hg@87
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/**
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* use ASCII borders instead of unicode ones
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*/
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private final boolean asciiNostalgia = false;
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/**
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* Trim values if they are longer than cell size
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*/
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private final boolean trimValues = false;
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public TabularFormatter(FormatterContext formatterContext) {
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super(formatterContext);
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out = new ColorfulPrintWriter(formatterContext.getOutputStream());
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}
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@Override
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public void writeStartResultSet() {
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super.writeStartResultSet();
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printResultSeparator();
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}
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franta-hg@37
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@Override
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public void writeColumnsHeader(ColumnsHeader header) {
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franta-hg@37
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super.writeColumnsHeader(header);
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franta-hg@37
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franta-hg@88
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initColumnWidths(header.getColumnCount());
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franta-hg@39
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franta-hg@40
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printTableIndent();
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franta-hg@40
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printTableBorder("╭");
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franta-hg@88
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franta-hg@88
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List<ColumnDescriptor> columnDescriptors = header.getColumnDescriptors();
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for (ColumnDescriptor cd : columnDescriptors) {
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// padding: make header cell at least same width as data cells in this column
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int typeWidth = cd.getTypeName().length() + HEADER_TYPE_PREFIX.length() + HEADER_TYPE_SUFFIX.length();
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cd.setLabel(rpad(cd.getLabel(), getColumnWidth(cd.getColumnNumber()) - typeWidth));
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updateColumnWidth(cd.getColumnNumber(), cd.getLabel().length() + typeWidth);
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if (!cd.isFirstColumn()) {
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printTableBorder("┬");
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}
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printTableBorder(repeat('─', getColumnWidth(cd.getColumnNumber()) + 2));
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}
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printTableBorder("╮");
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out.println();
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for (ColumnDescriptor cd : columnDescriptors) {
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if (cd.isFirstColumn()) {
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printTableIndent();
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printTableBorder("│ ");
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} else {
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printTableBorder(" │ ");
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}
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out.print(TerminalStyle.Bright, cd.getLabel());
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out.print(HEADER_TYPE_PREFIX);
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out.print(cd.getTypeName());
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out.print(HEADER_TYPE_SUFFIX);
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if (cd.isLastColumn()) {
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printTableBorder(" │");
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}
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}
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out.println();
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printTableIndent();
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printTableBorder("├");
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for (int i = 1; i <= header.getColumnCount(); i++) {
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if (i > 1) {
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printTableBorder("┼");
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}
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printTableBorder(repeat('─', getColumnWidth(i) + 2));
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}
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printTableBorder("┤");
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out.println();
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out.flush();
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}
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/**
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* Must be called before
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* {@linkplain #updateColumnWidth(int, int)}
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* and {@linkplain #getColumnWidth(int)}
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* for each result set.
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*
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* @param columnCount number of columns in current result set
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*/
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protected void initColumnWidths(int columnCount) {
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if (columnWidth == null) {
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columnWidth = new int[columnCount];
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}
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}
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protected void cleanColumnWidths() {
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columnWidth = null;
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}
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@Override
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public void writeColumnValue(Object value) {
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super.writeColumnValue(value);
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if (isCurrentColumnFirst()) {
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printTableIndent();
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printTableBorder("│ ");
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} else {
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printTableBorder(" │ ");
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}
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out.print(TerminalColor.Cyan, toString(value));
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if (isCurrentColumnLast()) {
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printTableBorder(" │");
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}
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}
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private int getColumnWidth(int columnNumber) {
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return columnWidth[columnNumber - 1];
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}
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private void setColumnWidth(int columnNumber, int width) {
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columnWidth[columnNumber - 1] = width;
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}
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protected void updateColumnWidth(int columnNumber, int width) {
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int oldWidth = getColumnWidth(columnNumber);
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setColumnWidth(columnNumber, Math.max(width, oldWidth));
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}
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protected String toString(Object value) {
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final int width = getColumnWidth(getCurrentColumnsCount());
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String result;
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if (value instanceof Number || value instanceof Boolean) {
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result = lpad(String.valueOf(value), width);
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} else {
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result = rpad(String.valueOf(value), width);
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}
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// ? value = (boolean) value ? "✔" : "✗";
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if (trimValues && result.length() > width) {
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result = result.substring(0, width - 1) + "…";
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}
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return result;
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}
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@Override
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public void writeEndRow() {
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super.writeEndRow();
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out.println();
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out.flush();
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}
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@Override
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public void writeEndResultSet() {
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int columnCount = getCurrentColumnsHeader().getColumnCount();
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super.writeEndResultSet();
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printTableIndent();
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printTableBorder("╰");
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for (int i = 1; i <= columnCount; i++) {
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if (i > 1) {
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printTableBorder("┴");
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}
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printTableBorder(repeat('─', getColumnWidth(i) + 2));
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}
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printTableBorder("╯");
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out.println();
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cleanColumnWidths();
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out.print(TerminalColor.Yellow, "Record count: ");
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out.println(getCurrentRowCount());
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out.bell();
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out.flush();
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}
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@Override
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public void writeStartUpdatesResult() {
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super.writeStartUpdatesResult();
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printResultSeparator();
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}
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franta-hg@37
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@Override
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franta-hg@37
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public void writeUpdatedRowsCount(int updatedRowsCount) {
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super.writeUpdatedRowsCount(updatedRowsCount);
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out.print(TerminalColor.Red, "Updated records: ");
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out.println(updatedRowsCount);
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franta-hg@40
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out.bell();
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out.flush();
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}
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franta-hg@37
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franta-hg@37
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@Override
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franta-hg@37
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public void writeEndDatabase() {
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super.writeEndDatabase();
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out.flush();
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}
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franta-hg@37
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franta-hg@37
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private void printResultSeparator() {
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franta-hg@37
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if (firstResult) {
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franta-hg@37
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firstResult = false;
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franta-hg@37
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} else {
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franta-hg@37
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out.println();
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franta-hg@37
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}
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franta-hg@37
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}
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franta-hg@40
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franta-hg@40
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private void printTableBorder(String border) {
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franta-hg@76
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if (asciiNostalgia) {
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franta-hg@76
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border = border.replaceAll("─", "-");
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franta-hg@76
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border = border.replaceAll("│", "|");
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franta-hg@76
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border = border.replaceAll("[╭┬╮├┼┤╰┴╯]", "+");
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}
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out.print(TerminalColor.Green, border);
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}
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franta-hg@40
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franta-hg@40
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private void printTableIndent() {
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franta-hg@40
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out.print(" ");
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franta-hg@40
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}
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franta-hg@32
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}
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