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

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Here is the source code for net.bull.javamelody.internal.web.pdf.PdfCacheInformationsReport.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.text.DecimalFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import com.lowagie.text.Anchor;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.Font;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfPCell;

import net.bull.javamelody.internal.common.I18N;
import net.bull.javamelody.internal.model.CacheInformations;
import net.bull.javamelody.internal.web.html.HtmlCacheInformationsReport;

/**
 * Partie du rapport pdf pour les caches de donnes.
 * @author Emeric Vernat
 */
class PdfCacheInformationsReport extends PdfAbstractTableReport {
    private final List<CacheInformations> cacheInformationsList;
    private final DecimalFormat integerFormat = I18N.createIntegerFormat();
    private final Font cellFont = PdfFonts.TABLE_CELL.getFont();
    private final boolean hitsRatioEnabled;
    private final boolean configurationEnabled;

    PdfCacheInformationsReport(List<CacheInformations> cacheInformationsList, Document document) {
        super(document);
        assert cacheInformationsList != null;

        this.cacheInformationsList = cacheInformationsList;
        this.hitsRatioEnabled = HtmlCacheInformationsReport.isHitsRatioEnabled(cacheInformationsList);
        this.configurationEnabled = HtmlCacheInformationsReport.isConfigurationEnabled(cacheInformationsList);
    }

    @Override
    void toPdf() throws DocumentException {
        writeHeader();

        for (final CacheInformations cacheInformations : cacheInformationsList) {
            nextRow();
            writeCacheInformations(cacheInformations);
        }
        addTableToDocument();
        if (!hitsRatioEnabled) {
            final Paragraph statisticsEnabledParagraph = new Paragraph(getString("caches_statistics_enable"),
                    cellFont);
            statisticsEnabledParagraph.setAlignment(Element.ALIGN_RIGHT);
            addToDocument(statisticsEnabledParagraph);
        }
        addConfigurationReference();
    }

    private void addConfigurationReference() throws DocumentException {
        final Anchor ehcacheAnchor = new Anchor("Configuration reference", PdfFonts.BLUE.getFont());
        ehcacheAnchor.setName("Ehcache configuration reference");
        ehcacheAnchor.setReference(
                "http://ehcache.sourceforge.net/apidocs/net/sf/ehcache/config/CacheConfiguration.html#field_summary");
        ehcacheAnchor.setFont(PdfFonts.BLUE.getFont());
        final Paragraph ehcacheParagraph = new Paragraph();
        ehcacheParagraph.add(ehcacheAnchor);
        ehcacheParagraph.setAlignment(Element.ALIGN_RIGHT);
        addToDocument(ehcacheParagraph);
    }

    private void writeHeader() throws DocumentException {
        final List<String> headers = createHeaders();
        final int[] relativeWidths = new int[headers.size()];
        Arrays.fill(relativeWidths, 0, headers.size(), 1);
        if (configurationEnabled) {
            relativeWidths[headers.size() - 1] = 4;
        }

        initTable(headers, relativeWidths);
    }

    private List<String> createHeaders() {
        final List<String> headers = new ArrayList<String>();
        headers.add(getString("Cache"));
        if (configurationEnabled) {
            headers.add(getString("Pourcentage_memoire_utilise"));
        }
        headers.add(getString("Nb_objets_en_memoire"));
        headers.add(getString("Nb_objets_sur_disque"));
        if (hitsRatioEnabled) {
            headers.add(getString("Efficacite_cache_memoire"));
            headers.add(getString("Efficacite_cache"));
        }
        if (configurationEnabled) {
            headers.add(getString("Configuration"));
        }
        return headers;
    }

    private void writeCacheInformations(CacheInformations cacheInformations) {
        final PdfPCell defaultCell = getDefaultCell();
        defaultCell.setHorizontalAlignment(Element.ALIGN_LEFT);
        addCell(cacheInformations.getName());
        defaultCell.setHorizontalAlignment(Element.ALIGN_RIGHT);
        if (configurationEnabled) {
            addCell(integerFormat.format(cacheInformations.getInMemoryPercentUsed()));
        }
        addCell(integerFormat.format(cacheInformations.getInMemoryObjectCount()));
        addCell(integerFormat.format(cacheInformations.getOnDiskObjectCount()));
        if (hitsRatioEnabled) {
            addCell(integerFormat.format(cacheInformations.getInMemoryHitsRatio()));
            addCell(integerFormat.format(cacheInformations.getHitsRatio()));
        }
        if (configurationEnabled) {
            defaultCell.setHorizontalAlignment(Element.ALIGN_LEFT);
            addCell(cacheInformations.getConfiguration());
        }
    }
}