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/*
* ============LICENSE_START==========================================
* ONAP Portal SDK
* ===================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ===================================================================
*
* Unless otherwise specified, all software contained herein is licensed
* under the Apache License, Version 2.0 (the "License");
* you may not use this software 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.
*
* Unless otherwise specified, all documentation contained herein is licensed
* under the Creative Commons License, Attribution 4.0 Intl. (the "License");
* you may not use this documentation except in compliance with the License.
* You may obtain a copy of the License at
*
* https://creativecommons.org/licenses/by/4.0/
*
* Unless required by applicable law or agreed to in writing, documentation
* 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.
*
* ============LICENSE_END============================================
*
*
*/
package org.onap.portalsdk.analytics.model.pdf;
import java.awt.Color;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import org.onap.portalsdk.analytics.system.AppUtils;
import org.onap.portalsdk.analytics.system.Globals;
import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
import com.lowagie.text.BadElementException;
import com.lowagie.text.Cell;
import com.lowagie.text.Document;
import com.lowagie.text.ExceptionConverter;
import com.lowagie.text.Font;
import com.lowagie.text.FontFactory;
import com.lowagie.text.Image;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Rectangle;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfDestination;
import com.lowagie.text.pdf.PdfOutline;
import com.lowagie.text.pdf.PdfPCell;
import com.lowagie.text.pdf.PdfPTable;
import com.lowagie.text.pdf.PdfPageEventHelper;
import com.lowagie.text.pdf.PdfWriter;
class PageEvent extends PdfPageEventHelper {
private static final EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(PageEvent.class);
private PdfBean pb;
private int pageNo = 0;
private int omit_page_count = 0;
private int DEFAULT_LOGO_SIZE = 100;
public PageEvent(PdfBean pb) {
this.pb = pb;
}
private int getHowManyLogos(){
int howManyLogos = 0;
if(AppUtils.isNotEmpty(pb.getLogo1Url()) && !pb.getLogo1Url().equalsIgnoreCase("<no logo>"))
howManyLogos ++;
if(AppUtils.isNotEmpty(pb.getLogo2Url()) && !pb.getLogo2Url().equalsIgnoreCase("<no logo>"))
howManyLogos ++;
return howManyLogos;
}
private float[] fillWidthsArray(int howManyLogos){
float[] widthsArray = new float[howManyLogos + 1];
//If one logo, we will need two columns in the header[left log, spacer]
if(howManyLogos == 1){
widthsArray = new float[2];
widthsArray[0] = 0.1f;
widthsArray[1] = 0.1f;
}
//If two logs, we will need three columns in the header [left log, spacer, right log]
else
if(howManyLogos == 2){
widthsArray = new float[3];
widthsArray[0] = 0.1f;
widthsArray[1] = 0.5f;
widthsArray[2] = 0.1f;
}
return widthsArray;
}
public void onStartPage(PdfWriter writer, Document document) {
Font font = FontFactory.getFont(Globals.getFooterFontFamily(), Globals.getFooterFontSize(), Font.NORMAL, Color.BLACK);
int howManyLogos = getHowManyLogos();
//No need to draw anything in the header if no logo was set in the report.
if(howManyLogos == 0)
return;
float[] widths = fillWidthsArray(howManyLogos);
PdfPTable foot = new PdfPTable(widths);
if(AppUtils.isNotEmpty(pb.getLogo1Url()) && !pb.getLogo1Url().equalsIgnoreCase("<no logo>"))
addLogo(foot, font, pb.getLogo1Url().substring(pb.getLogo1Url().indexOf("|") + 1).trim(), Cell.ALIGN_LEFT, pb.getLogo1Size() == null ? DEFAULT_LOGO_SIZE : pb.getLogo1Size());
PdfPCell spacingCell = new PdfPCell();
spacingCell.setBorderColor(Color.WHITE);
foot.addCell(spacingCell);
//Using logo1 size for now - use logo2 size if it is required to deal it separately.
if(AppUtils.isNotEmpty(pb.getLogo2Url()) && !pb.getLogo2Url().equalsIgnoreCase("<no logo>"))
addLogo(foot, font, pb.getLogo2Url().substring(pb.getLogo2Url().indexOf("|") + 1).trim(), Cell.ALIGN_RIGHT, pb.getLogo2Size() == null ? DEFAULT_LOGO_SIZE : pb.getLogo2Size());
foot.setTotalWidth(getPageWidth(document));
foot.writeSelectedRows(0, -1, 36, 600, writer.getDirectContent());
}
public void onEndPage(PdfWriter writer, Document document) {
Font font = FontFactory.getFont(Globals.getFooterFontFamily(), Globals.getFooterFontSize(), Font.NORMAL, Color.BLACK);
try {
// footer
float[] f = { 1f, 0.4f, 1f };
PdfPTable foot = new PdfPTable(f);
foot.getDefaultCell().setBorderWidth(0);
foot.getDefaultCell().setHorizontalAlignment(Rectangle.ALIGN_CENTER);
foot.getDefaultCell().setVerticalAlignment(Rectangle.ALIGN_BOTTOM);
foot.getDefaultCell().setHorizontalAlignment(Rectangle.ALIGN_LEFT);
addLeftFooter(foot, font);
foot.getDefaultCell().setHorizontalAlignment(Rectangle.ALIGN_CENTER);
addPageNumber(foot, font, pb.isPageNumberAtFooter(), document.getPageNumber());
foot.getDefaultCell().setHorizontalAlignment(Rectangle.ALIGN_RIGHT);
foot.getDefaultCell().setNoWrap(true);
foot.addCell(new Paragraph(" " + PdfReportHandler.currentTime(pb.getTimestampPattern()), font));
foot.setTotalWidth(getPageWidth(document));
foot.writeSelectedRows(0, -1, document.leftMargin(), document.bottomMargin(), writer.getDirectContent());
// bookmark
pageNo++;
PdfContentByte cb = writer.getDirectContent();
PdfDestination destination = new PdfDestination(PdfDestination.FITH);
String bookmark = "Data Page " + (pageNo - omit_page_count);
if (pageNo == 1) {
if (pb.isCoverPageIncluded()) {
bookmark = "Cover Page";
omit_page_count++;
} else if (pb.isDisplayChart()) {
bookmark = "Chart";
omit_page_count++;
}
}
if (pageNo == 2 && pb.isCoverPageIncluded() && pb.isDisplayChart()) {
bookmark = "Chart";
omit_page_count++;
}
PdfOutline outline = new PdfOutline(cb.getRootOutline(), destination, bookmark);
} catch (Exception e) {
throw new ExceptionConverter(e);
}
}
private void addPageNumber(PdfPTable table, Font font, boolean isAdd, int pageNum) {
if (isAdd)
table.addCell(new Paragraph(Globals.getWordBeforePageNumber() + " " + pageNum + " " + Globals.getWordAfterPageNumber(), font));
else
table.addCell("");
}
private void addLeftFooter(PdfPTable table, Font font) {
Font font1 = new Font(font);
font1.setSize(Globals.getPDFFooterFontSize());
if (isEmpty(pb.getLeftFooter()))
table.addCell(new Paragraph(" " + Globals.getPDFFooter(), font1));
else
table.addCell(new Paragraph(pb.getLeftFooter(), font));
}
private void addLogo(PdfPTable table, Font font, String imgSrc, int alignment, int absoluteSize) {
Image img = null;
try {
img = Image.getInstance(pb.getFullWebContextPath() + AppUtils.getImgFolderURL() + File.separator + imgSrc);
} catch (BadElementException | MalformedURLException e) {
logger.error(EELFLoggerDelegate.errorLogger,"addLogo() failed ", e);
img = null;
} catch (IOException e) {
logger.error(EELFLoggerDelegate.errorLogger,e.getMessage(), e);
}
if(img == null){
//log that the input file couldnt be loaded -
}
else{
img.scalePercent(absoluteSize, absoluteSize);
PdfPCell cell = new PdfPCell(img);
cell.setBorderColor(Color.WHITE);
cell.setHorizontalAlignment(alignment);
table.addCell(cell);
}
}
public static float getPageWidth(Document doc) {
return doc.getPageSize().width() - doc.leftMargin() - doc.rightMargin();
}
public static float getPageHeight(Document doc) {
return doc.getPageSize().height() - doc.topMargin() - doc.bottomMargin();
}
private float getHeadTopMargin(Document doc, PdfPTable table) {
return doc.getPageSize().height() - doc.topMargin() + table.getTotalHeight();
}
private boolean isEmpty(String str) {
return str == null || str.trim().length() == 0;
}
} // PageEvent
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