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/*******************************************************************************
 * Copyright (c) 2009, 2013 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.page;

import java.io.IOException;
import java.io.Reader;
import java.util.HashMap;
import java.util.Map;

import org.jacoco.core.analysis.IClassCoverage;
import org.jacoco.core.analysis.IPackageCoverage;
import org.jacoco.core.analysis.ISourceFileCoverage;
import org.jacoco.report.ISourceFileLocator;
import org.jacoco.report.internal.ReportOutputFolder;
import org.jacoco.report.internal.html.IHTMLReportContext;
import org.jacoco.report.internal.html.ILinkable;

/**
 * Page showing coverage information for a Java package. The page contains a
 * table with all classes of the package.
 */
public class PackagePage extends TablePage<IPackageCoverage> {

	private final ISourceFileLocator locator;

	/**
	 * Creates a new visitor in the given context.
	 * 
	 * @param node
	 * @param parent
	 * @param locator
	 * @param folder
	 * @param context
	 */
	public PackagePage(final IPackageCoverage node, final ReportPage parent,
			final ISourceFileLocator locator, final ReportOutputFolder folder,
			final IHTMLReportContext context) {
		super(node, parent, folder, context);
		this.locator = locator;
	}

	@Override
	public void render() throws IOException {
		final Map<String, ILinkable> sourceFiles = renderSourceFiles();
		renderClasses(sourceFiles);
		super.render();
	}

	private final Map<String, ILinkable> renderSourceFiles() throws IOException {
		final Map<String, ILinkable> sourceFiles = new HashMap<String, ILinkable>();
		final String packagename = getNode().getName();
		for (final ISourceFileCoverage s : getNode().getSourceFiles()) {
			final String sourcename = s.getName();
			final Reader reader = locator
					.getSourceFile(packagename, sourcename);
			if (reader != null) {
				final SourceFilePage sourcePage = new SourceFilePage(s, reader,
						locator.getTabWidth(), this, folder, context);
				sourcePage.render();
				sourceFiles.put(sourcename, sourcePage);
			}

		}
		return sourceFiles;
	}

	private void renderClasses(final Map<String, ILinkable> sourceFiles)
			throws IOException {
		for (final IClassCoverage c : getNode().getClasses()) {
			final ClassPage page = new ClassPage(c, this, sourceFiles.get(c
					.getSourceFileName()), folder, context);
			page.render();
			addItem(page);
		}
	}

	@Override
	protected String getOnload() {
		return "initialSort(['breadcrumb', 'coveragetable'])";
	}

	@Override
	protected String getFileName() {
		return "index.html";
	}

	@Override
	public String getLinkLabel() {
		return context.getLanguageNames().getPackageName(getNode().getName());
	}

}