net.bull.javamelody.internal.web.pdf.PdfDatabaseInformationsReport.java Source code

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Here is the source code for net.bull.javamelody.internal.web.pdf.PdfDatabaseInformationsReport.java

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/*
 * Copyright 2008-2017 by Emeric Vernat
 *
 *     This file is part of Java Melody.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.bull.javamelody.internal.web.pdf;

import java.util.Arrays;
import java.util.List;

import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.pdf.PdfPCell;

import net.bull.javamelody.internal.model.DatabaseInformations;

/**
 * Rapport pdf pour les informations sur la base de donnes.
 * @author Emeric Vernat
 */
class PdfDatabaseInformationsReport extends PdfAbstractTableReport {
    private final DatabaseInformations databaseInformations;

    PdfDatabaseInformationsReport(DatabaseInformations databaseInformations, Document document) {
        super(document);
        assert databaseInformations != null;
        this.databaseInformations = databaseInformations;
    }

    @Override
    void toPdf() throws DocumentException {
        final String[][] values = databaseInformations.getResult();
        // final int nbColumns = databaseInformations.getNbColumns();
        // contrairement au rapport html, le rapport pdf ne s'affiche pas avec des tableaux
        // sur plusieurs colonnes, en particulier car en pdf la largeur des cellules ne s'adapte
        // pas au contenu et donc certaines cellules seraient un peu trop petites pour leur contenu
        final String[] headerValues = values[0];
        writeTableHeaders(headerValues);
        int index = 0;
        for (final String[] row : values) {
            if (index == 0) {
                index++;
                continue;
            }
            nextRow();
            writeRow(row);
            index++;
        }
        addTableToDocument();
    }

    private void writeTableHeaders(String[] headerValues) throws DocumentException {
        final List<String> headers = Arrays.asList(headerValues);
        final int[] relativeWidths = new int[headers.size()];
        Arrays.fill(relativeWidths, 0, headers.size(), 1);
        initTable(headers, relativeWidths);
    }

    private void writeRow(String[] row) {
        final PdfPCell defaultCell = getDefaultCell();
        defaultCell.setVerticalAlignment(Element.ALIGN_TOP);
        for (final String value : row) {
            if (value == null || value.isEmpty()) {
                addCell("");
            } else {
                if (isNumber(value)) {
                    defaultCell.setHorizontalAlignment(Element.ALIGN_RIGHT);
                } else {
                    defaultCell.setHorizontalAlignment(Element.ALIGN_LEFT);
                }
                addCell(value);
            }
        }
    }

    private static boolean isNumber(String text) {
        final int length = text.length();
        for (int i = 0; i < length; i++) {
            final char c = text.charAt(i);
            if (!Character.isDigit(c) && c != '.') {
                return false;
            }
        }
        return true;
    }
}