# HTMLGroupVisitor.java

    /*******************************************************************************
     * 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;

    import java.io.IOException;

    import org.jacoco.core.analysis.IBundleCoverage;
    import org.jacoco.core.analysis.ICoverageNode;
    import org.jacoco.report.ISourceFileLocator;
    import org.jacoco.report.internal.AbstractGroupVisitor;
    import org.jacoco.report.internal.ReportOutputFolder;
    import org.jacoco.report.internal.html.page.BundlePage;
    import org.jacoco.report.internal.html.page.GroupPage;
    import org.jacoco.report.internal.html.page.NodePage;
    import org.jacoco.report.internal.html.page.ReportPage;

    /**
     * Group visitor for HTML reports.
     */
    public class HTMLGroupVisitor extends AbstractGroupVisitor {

    	private final ReportOutputFolder folder;

    	private final IHTMLReportContext context;

    	private final GroupPage page;

    	/**
    	 * Create a new group handler.
    	 *
    	 * @param parent
    	 *            optional hierarchical parent
    	 * @param folder
    	 *            base folder for this group
    	 * @param context
    	 *            settings context
    	 * @param name
    	 *            group name
    	 */
    	public HTMLGroupVisitor(final ReportPage parent,
    			final ReportOutputFolder folder, final IHTMLReportContext context,
    			final String name) {
    		super(name);
    		this.folder = folder;
    		this.context = context;
    		page = new GroupPage(total, parent, folder, context);
    	}

    	/**
    	 * Returns the page rendered for this group.
    	 *
    	 * @return page for this group
    	 */
    	public NodePage<ICoverageNode> getPage() {
    		return page;
    	}

    	@Override
    	protected void handleBundle(final IBundleCoverage bundle,
    			final ISourceFileLocator locator) throws IOException {
    		final BundlePage bundlepage = new BundlePage(bundle, page, locator,
    				folder.subFolder(bundle.getName()), context);
    		bundlepage.render();
    		page.addItem(bundlepage);
    	}

    	@Override
    	protected AbstractGroupVisitor handleGroup(final String name)
    			throws IOException {
    		final HTMLGroupVisitor handler = new HTMLGroupVisitor(page,
    				folder.subFolder(name), context, name);
    		page.addItem(handler.getPage());
    		return handler;
    	}

    	@Override
    	protected void handleEnd() throws IOException {
    		page.render();
    	}

    }