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/*******************************************************************************
* Copyright (c) 2009, 2011 Mountainminds GmbH & Co. KG and Contributors
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.report.internal.html.table;
import java.io.IOException;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Comparator;
import java.util.List;
import java.util.Locale;
import org.jacoco.core.analysis.CounterComparator;
import org.jacoco.core.analysis.ICounter;
import org.jacoco.core.analysis.ICoverageNode;
import org.jacoco.core.analysis.ICoverageNode.CounterEntity;
import org.jacoco.report.ReportOutputFolder;
import org.jacoco.report.internal.html.HTMLElement;
import org.jacoco.report.internal.html.resources.Resources;
/**
* Column with a graphical bar that represents the total amount of items in with
* length, and the coverage ratio with a red/green sections. The implementation
* is stateful, instances must not be used in parallel.
*
* @author Marc R. Hoffmann
* @version $qualified.bundle.version$
*/
public class BarColumn implements IColumnRenderer {
private static final int WIDTH = 120;
private final CounterEntity entity;
private final NumberFormat integerFormat;
private int max;
private final Comparator<ITableItem> comparator;
/**
* Creates a new column that is based on the {@link ICounter} for the given
* entity.
*
* @param entity
* counter entity for visualization
* @param locale
* locale for rendering numbers
*/
public BarColumn(final CounterEntity entity, final Locale locale) {
this.entity = entity;
this.integerFormat = DecimalFormat.getIntegerInstance(locale);
this.comparator = new TableItemComparator(CounterComparator.MISSEDITEMS
.reverse().on(entity)
.second(CounterComparator.TOTALITEMS.reverse().on(entity)));
}
public boolean init(final List<? extends ITableItem> items,
final ICoverageNode total) {
this.max = 0;
for (final ITableItem item : items) {
final int count = item.getNode().getCounter(entity).getTotalCount();
if (count > this.max) {
this.max = count;
}
}
return true;
}
public void footer(final HTMLElement td, final ICoverageNode total,
final Resources resources, final ReportOutputFolder base)
throws IOException {
final ICounter counter = total.getCounter(entity);
td.text(integerFormat.format(counter.getMissedCount())).text(" of ")
.text(integerFormat.format(counter.getTotalCount()));
}
public void item(final HTMLElement td, final ITableItem item,
final Resources resources, final ReportOutputFolder base)
throws IOException {
if (max > 0) {
final ICounter counter = item.getNode().getCounter(entity);
final int missed = counter.getMissedCount();
bar(td, missed, Resources.REDBAR, resources, base);
final int covered = counter.getCoveredCount();
bar(td, covered, Resources.GREENBAR, resources, base);
}
}
private void bar(final HTMLElement td, final int count, final String image,
final Resources resources, final ReportOutputFolder base)
throws IOException {
final int width = count * WIDTH / max;
if (width > 0) {
td.img(resources.getLink(base, image), width, 10,
integerFormat.format(count));
}
}
public Comparator<ITableItem> getComparator() {
return comparator;
}
}
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