franta-hg@32
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/**
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franta-hg@32
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* SQL-DK
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franta-hg@32
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* Copyright © 2013 František Kučera (frantovo.cz)
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franta-hg@32
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*
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franta-hg@32
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* This program is free software: you can redistribute it and/or modify
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franta-hg@32
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* it under the terms of the GNU General Public License as published by
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franta-hg@32
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* the Free Software Foundation, either version 3 of the License, or
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franta-hg@32
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* (at your option) any later version.
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franta-hg@32
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*
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franta-hg@32
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* This program is distributed in the hope that it will be useful,
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franta-hg@32
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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franta-hg@32
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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franta-hg@32
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* GNU General Public License for more details.
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franta-hg@32
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*
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franta-hg@32
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* You should have received a copy of the GNU General Public License
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franta-hg@32
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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franta-hg@32
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*/
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franta-hg@32
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package info.globalcode.sql.dk.formatting;
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franta-hg@32
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franta-hg@34
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import info.globalcode.sql.dk.ColorfulPrintWriter;
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franta-hg@37
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import static info.globalcode.sql.dk.ColorfulPrintWriter.*;
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franta-hg@39
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import static info.globalcode.sql.dk.Functions.lpad;
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franta-hg@39
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import static info.globalcode.sql.dk.Functions.rpad;
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franta-hg@40
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import static info.globalcode.sql.dk.Functions.repeat;
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franta-hg@88
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import java.util.List;
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franta-hg@169
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import java.util.regex.Matcher;
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franta-hg@169
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import java.util.regex.Pattern;
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franta-hg@34
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franta-hg@32
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/**
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franta-hg@185
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* <p>
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franta-hg@185
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* Prints human-readable output – tables of result sets and text messages with update counts.
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franta-hg@185
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* </p>
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franta-hg@155
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*
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franta-hg@185
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* <p>
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franta-hg@185
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* Longer values might break the table – overflow the cells – see alternative tabular formatters
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franta-hg@185
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* and the {@linkplain #PROPERTY_TRIM} property.
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franta-hg@185
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* </p>
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franta-hg@32
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*
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franta-hg@32
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* @author Ing. František Kučera (frantovo.cz)
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franta-hg@155
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* @see TabularPrefetchingFormatter
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franta-hg@155
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* @see TabularWrappingFormatter
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franta-hg@32
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*/
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franta-hg@32
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public class TabularFormatter extends AbstractFormatter {
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franta-hg@32
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franta-hg@79
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public static final String NAME = "tabular"; // bash-completion:formatter
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franta-hg@39
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private static final String HEADER_TYPE_PREFIX = " (";
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franta-hg@39
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private static final String HEADER_TYPE_SUFFIX = ")";
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franta-hg@104
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public static final String PROPERTY_ASCII = "ascii";
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franta-hg@104
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public static final String PROPERTY_COLORFUL = "color";
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franta-hg@104
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public static final String PROPERTY_TRIM = "trim";
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franta-hg@170
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private static final String NBSP = " ";
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franta-hg@185
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private static final Pattern whitespaceToReplace = Pattern.compile("\\n|\\r|\\t|" + NBSP);
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franta-hg@123
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protected ColorfulPrintWriter out;
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franta-hg@37
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private boolean firstResult = true;
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franta-hg@39
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private int[] columnWidth;
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franta-hg@87
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/**
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franta-hg@87
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* use ASCII borders instead of unicode ones
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franta-hg@87
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*/
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franta-hg@104
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private final boolean asciiNostalgia;
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franta-hg@87
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/**
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franta-hg@87
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* Trim values if they are longer than cell size
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franta-hg@87
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*/
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private final boolean trimValues;
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franta-hg@32
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franta-hg@32
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public TabularFormatter(FormatterContext formatterContext) {
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super(formatterContext);
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franta-hg@34
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out = new ColorfulPrintWriter(formatterContext.getOutputStream());
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asciiNostalgia = formatterContext.getProperties().getBoolean(PROPERTY_ASCII, false);
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franta-hg@104
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trimValues = formatterContext.getProperties().getBoolean(PROPERTY_TRIM, false);
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out.setColorful(formatterContext.getProperties().getBoolean(PROPERTY_COLORFUL, true));
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}
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franta-hg@34
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franta-hg@34
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@Override
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franta-hg@142
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public void writeStartResultSet(ColumnsHeader header) {
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franta-hg@142
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super.writeStartResultSet(header);
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franta-hg@37
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printResultSeparator();
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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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franta-hg@88
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franta-hg@88
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for (ColumnDescriptor cd : columnDescriptors) {
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franta-hg@88
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// padding: make header cell at least same width as data cells in this column
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franta-hg@88
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int typeWidth = cd.getTypeName().length() + HEADER_TYPE_PREFIX.length() + HEADER_TYPE_SUFFIX.length();
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franta-hg@88
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cd.setLabel(rpad(cd.getLabel(), getColumnWidth(cd.getColumnNumber()) - typeWidth));
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franta-hg@88
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updateColumnWidth(cd.getColumnNumber(), cd.getLabel().length() + typeWidth);
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franta-hg@88
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franta-hg@40
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if (!cd.isFirstColumn()) {
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franta-hg@40
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printTableBorder("┬");
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franta-hg@40
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}
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franta-hg@40
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printTableBorder(repeat('─', getColumnWidth(cd.getColumnNumber()) + 2));
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franta-hg@40
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}
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franta-hg@40
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printTableBorder("╮");
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franta-hg@40
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out.println();
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franta-hg@40
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franta-hg@88
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for (ColumnDescriptor cd : columnDescriptors) {
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franta-hg@40
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if (cd.isFirstColumn()) {
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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@40
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} else {
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franta-hg@40
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printTableBorder(" │ ");
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franta-hg@40
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}
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franta-hg@37
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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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franta-hg@39
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out.print(HEADER_TYPE_SUFFIX);
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franta-hg@40
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if (cd.isLastColumn()) {
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franta-hg@40
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printTableBorder(" │");
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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@37
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out.println();
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franta-hg@40
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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@40
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for (int i = 1; i <= header.getColumnCount(); i++) {
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franta-hg@40
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if (i > 1) {
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franta-hg@40
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printTableBorder("┼");
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franta-hg@40
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}
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franta-hg@40
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printTableBorder(repeat('─', getColumnWidth(i) + 2));
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franta-hg@40
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}
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franta-hg@40
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printTableBorder("┤");
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franta-hg@40
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out.println();
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franta-hg@40
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franta-hg@37
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out.flush();
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franta-hg@37
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}
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franta-hg@37
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franta-hg@88
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/**
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franta-hg@88
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* Must be called before
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franta-hg@88
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* {@linkplain #updateColumnWidth(int, int)}
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franta-hg@88
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* and {@linkplain #getColumnWidth(int)}
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franta-hg@88
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* for each result set.
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franta-hg@88
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*
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franta-hg@88
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* @param columnCount number of columns in current result set
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franta-hg@88
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*/
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franta-hg@88
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protected void initColumnWidths(int columnCount) {
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franta-hg@88
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if (columnWidth == null) {
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franta-hg@88
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columnWidth = new int[columnCount];
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franta-hg@88
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}
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franta-hg@88
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}
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franta-hg@88
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franta-hg@88
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protected void cleanColumnWidths() {
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franta-hg@88
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columnWidth = null;
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franta-hg@88
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}
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franta-hg@88
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franta-hg@37
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@Override
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franta-hg@34
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public void writeColumnValue(Object value) {
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franta-hg@34
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super.writeColumnValue(value);
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franta-hg@123
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writeColumnValueInternal(value);
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franta-hg@123
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}
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franta-hg@123
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franta-hg@123
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protected void writeColumnValueInternal(Object value) {
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franta-hg@34
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franta-hg@40
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if (isCurrentColumnFirst()) {
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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@40
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} else {
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franta-hg@90
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printTableBorder(" │ ");
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franta-hg@34
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}
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franta-hg@37
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franta-hg@123
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String valueString = toString(value);
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franta-hg@169
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printValueWithWhitespaceReplaced(valueString);
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franta-hg@40
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franta-hg@40
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if (isCurrentColumnLast()) {
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franta-hg@90
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printTableBorder(" │");
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franta-hg@40
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}
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franta-hg@40
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franta-hg@39
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}
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franta-hg@39
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franta-hg@123
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protected int getColumnWidth(int columnNumber) {
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franta-hg@39
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return columnWidth[columnNumber - 1];
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franta-hg@39
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}
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franta-hg@39
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175 |
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franta-hg@39
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private void setColumnWidth(int columnNumber, int width) {
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franta-hg@39
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columnWidth[columnNumber - 1] = width;
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franta-hg@39
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}
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franta-hg@39
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franta-hg@88
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protected void updateColumnWidth(int columnNumber, int width) {
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franta-hg@39
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int oldWidth = getColumnWidth(columnNumber);
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franta-hg@39
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setColumnWidth(columnNumber, Math.max(width, oldWidth));
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franta-hg@39
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franta-hg@39
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}
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franta-hg@39
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185 |
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franta-hg@39
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186 |
protected String toString(Object value) {
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franta-hg@39
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187 |
final int width = getColumnWidth(getCurrentColumnsCount());
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franta-hg@87
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188 |
String result;
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franta-hg@43
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189 |
if (value instanceof Number || value instanceof Boolean) {
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franta-hg@98
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result = lpad(String.valueOf(value), width);
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franta-hg@39
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} else {
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franta-hg@98
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result = rpad(String.valueOf(value), width);
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franta-hg@39
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}
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franta-hg@40
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// ? value = (boolean) value ? "✔" : "✗";
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franta-hg@87
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franta-hg@87
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if (trimValues && result.length() > width) {
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franta-hg@87
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result = result.substring(0, width - 1) + "…";
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franta-hg@87
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}
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franta-hg@87
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franta-hg@87
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return result;
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franta-hg@34
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}
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franta-hg@34
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202 |
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franta-hg@34
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203 |
@Override
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franta-hg@34
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204 |
public void writeEndRow() {
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franta-hg@34
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205 |
super.writeEndRow();
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franta-hg@123
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writeEndRowInternal();
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franta-hg@123
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207 |
}
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franta-hg@123
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208 |
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franta-hg@123
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209 |
public void writeEndRowInternal() {
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franta-hg@34
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210 |
out.println();
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franta-hg@34
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211 |
out.flush();
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franta-hg@32
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212 |
}
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franta-hg@37
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213 |
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franta-hg@37
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214 |
@Override
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franta-hg@37
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215 |
public void writeEndResultSet() {
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franta-hg@40
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216 |
int columnCount = getCurrentColumnsHeader().getColumnCount();
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franta-hg@37
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217 |
super.writeEndResultSet();
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franta-hg@40
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218 |
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franta-hg@40
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219 |
printTableIndent();
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franta-hg@40
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220 |
printTableBorder("╰");
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franta-hg@40
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221 |
for (int i = 1; i <= columnCount; i++) {
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franta-hg@40
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222 |
if (i > 1) {
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franta-hg@40
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223 |
printTableBorder("┴");
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franta-hg@40
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224 |
}
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franta-hg@40
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225 |
printTableBorder(repeat('─', getColumnWidth(i) + 2));
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franta-hg@40
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226 |
}
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franta-hg@40
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227 |
printTableBorder("╯");
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franta-hg@40
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228 |
out.println();
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franta-hg@40
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229 |
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franta-hg@88
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230 |
cleanColumnWidths();
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franta-hg@40
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231 |
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franta-hg@37
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232 |
out.print(TerminalColor.Yellow, "Record count: ");
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franta-hg@37
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233 |
out.println(getCurrentRowCount());
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franta-hg@40
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234 |
out.bell();
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franta-hg@37
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235 |
out.flush();
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franta-hg@37
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236 |
}
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franta-hg@37
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237 |
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franta-hg@37
|
238 |
@Override
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franta-hg@142
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239 |
public void writeUpdatesResult(int updatedRowsCount) {
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franta-hg@142
|
240 |
super.writeUpdatesResult(updatedRowsCount);
|
franta-hg@37
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241 |
printResultSeparator();
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franta-hg@37
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242 |
out.print(TerminalColor.Red, "Updated records: ");
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franta-hg@37
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243 |
out.println(updatedRowsCount);
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franta-hg@40
|
244 |
out.bell();
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franta-hg@37
|
245 |
out.flush();
|
franta-hg@37
|
246 |
}
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franta-hg@37
|
247 |
|
franta-hg@37
|
248 |
@Override
|
franta-hg@37
|
249 |
public void writeEndDatabase() {
|
franta-hg@37
|
250 |
super.writeEndDatabase();
|
franta-hg@37
|
251 |
out.flush();
|
franta-hg@37
|
252 |
}
|
franta-hg@37
|
253 |
|
franta-hg@37
|
254 |
private void printResultSeparator() {
|
franta-hg@37
|
255 |
if (firstResult) {
|
franta-hg@37
|
256 |
firstResult = false;
|
franta-hg@37
|
257 |
} else {
|
franta-hg@37
|
258 |
out.println();
|
franta-hg@37
|
259 |
}
|
franta-hg@37
|
260 |
}
|
franta-hg@40
|
261 |
|
franta-hg@123
|
262 |
protected void printTableBorder(String border) {
|
franta-hg@76
|
263 |
if (asciiNostalgia) {
|
franta-hg@76
|
264 |
border = border.replaceAll("─", "-");
|
franta-hg@76
|
265 |
border = border.replaceAll("│", "|");
|
franta-hg@76
|
266 |
border = border.replaceAll("[╭┬╮├┼┤╰┴╯]", "+");
|
franta-hg@76
|
267 |
}
|
franta-hg@87
|
268 |
|
franta-hg@40
|
269 |
out.print(TerminalColor.Green, border);
|
franta-hg@40
|
270 |
}
|
franta-hg@40
|
271 |
|
franta-hg@123
|
272 |
protected void printTableIndent() {
|
franta-hg@40
|
273 |
out.print(" ");
|
franta-hg@40
|
274 |
}
|
franta-hg@123
|
275 |
|
franta-hg@169
|
276 |
protected void printValueWithWhitespaceReplaced(String valueString) {
|
franta-hg@169
|
277 |
|
franta-hg@169
|
278 |
Matcher m = whitespaceToReplace.matcher(valueString);
|
franta-hg@169
|
279 |
|
franta-hg@169
|
280 |
int start = 0;
|
franta-hg@169
|
281 |
while (m.find(start)) {
|
franta-hg@169
|
282 |
|
franta-hg@169
|
283 |
out.print(TerminalColor.Cyan, valueString.substring(start, m.start()));
|
franta-hg@169
|
284 |
|
franta-hg@169
|
285 |
switch (m.group()) {
|
franta-hg@169
|
286 |
case "\n":
|
franta-hg@169
|
287 |
out.print(TerminalColor.Red, "↲");
|
franta-hg@169
|
288 |
break;
|
franta-hg@185
|
289 |
case "\r":
|
franta-hg@185
|
290 |
out.print(TerminalColor.Red, "⏎");
|
franta-hg@185
|
291 |
break;
|
franta-hg@169
|
292 |
case "\t":
|
franta-hg@169
|
293 |
out.print(TerminalColor.Red, "↹");
|
franta-hg@169
|
294 |
break;
|
franta-hg@170
|
295 |
case NBSP:
|
franta-hg@170
|
296 |
out.print(TerminalColor.Red, "⎵");
|
franta-hg@170
|
297 |
break;
|
franta-hg@169
|
298 |
default:
|
franta-hg@169
|
299 |
throw new IllegalStateException("Unexpected whitespace token: „" + m.group() + "“");
|
franta-hg@123
|
300 |
}
|
franta-hg@169
|
301 |
|
franta-hg@169
|
302 |
start = m.end();
|
franta-hg@123
|
303 |
}
|
franta-hg@167
|
304 |
|
franta-hg@169
|
305 |
out.print(TerminalColor.Cyan, valueString.substring(start, valueString.length()));
|
franta-hg@123
|
306 |
}
|
franta-hg@32
|
307 |
}
|