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/**
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* SQL-DK
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* Copyright © 2015 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, version 3 of the License.
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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 info.globalcode.sql.dk.configuration.PropertyDeclaration;
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import static info.globalcode.sql.dk.formatting.CommonProperties.COLORFUL;
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import static info.globalcode.sql.dk.formatting.CommonProperties.COLORFUL_DESCRIPTION;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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/**
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* Prints results in the recfile format. This format is both human- and machine- readable. Can be
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* processed by the <a href="https://www.gnu.org/software/recutils/">GNU Recutils</a>
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* or <a href="https://relational-pipes.globalcode.info/">Relational pipes</a>.
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*
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* @author Ing. František Kučera (frantovo.cz)
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*/
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@PropertyDeclaration(name = COLORFUL, defaultValue = "false", type = Boolean.class, description = COLORFUL_DESCRIPTION)
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public class RecfileFormatter extends AbstractFormatter {
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private static final Logger log = Logger.getLogger(RecfileFormatter.class.getName());
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public static final String NAME = "recfile"; // bash-completion:formatter
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private final ColorfulPrintWriter out;
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private boolean firstResult = true;
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public RecfileFormatter(FormatterContext formatterContext) {
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super(formatterContext);
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out = new ColorfulPrintWriter(formatterContext.getOutputStream());
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out.setColorful(formatterContext.getProperties().getBoolean(COLORFUL, false));
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}
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@Override
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public void writeStartResultSet(ColumnsHeader header) {
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super.writeStartResultSet(header);
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printResultSeparator();
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out.print(ColorfulPrintWriter.TerminalColor.Red, "%rec: ");
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printRecfileValue(getCurrentRelationName());
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// TODO: declare attribute data types where jdbc→recfile mapping is possible
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}
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@Override
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public void writeStartRow() {
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super.writeStartRow();
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println();
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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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String columnName = getCurrentColumnsHeader().getColumnDescriptors().get(getCurrentColumnsCount() - 1).getLabel();
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out.print(ColorfulPrintWriter.TerminalColor.Green, columnName + ": ");
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printRecfileValue(value);
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}
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@Override
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public void writeUpdatesResult(int updatedRowsCount) {
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super.writeUpdatesResult(updatedRowsCount);
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printResultSeparator();
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log.log(Level.INFO, "Updated records: {0}", updatedRowsCount);
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}
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@Override
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public void writeEndBatch() {
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super.writeEndBatch();
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println();
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}
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private void println() {
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out.println();
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out.flush();
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}
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private void printRecfileValue(Object value) {
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if (value == null) {
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// TODO: null values in recfiles?
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} else {
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for (char ch : value.toString().toCharArray()) {
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out.print(ch);
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if (ch == '\n') {
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out.print(ColorfulPrintWriter.TerminalColor.Magenta, "+ ");
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}
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}
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}
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println();
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}
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private void printResultSeparator() {
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if (firstResult) {
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firstResult = false;
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} else {
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println();
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}
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}
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}
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