# CSVGroupHandler.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:
     *    Brock Janiczak - initial API and implementation
     *
     *******************************************************************************/
    package org.jacoco.report.csv;

    import java.io.IOException;

    import org.jacoco.core.analysis.IBundleCoverage;
    import org.jacoco.core.analysis.IClassCoverage;
    import org.jacoco.core.analysis.IPackageCoverage;
    import org.jacoco.report.IReportGroupVisitor;
    import org.jacoco.report.ISourceFileLocator;

    /**
     * Report visitor that handles coverage information for groups.
     */
    class CSVGroupHandler implements IReportGroupVisitor {

    	private final ClassRowWriter writer;

    	private final String groupName;

    	public CSVGroupHandler(final ClassRowWriter writer) {
    		this(writer, null);
    	}

    	private CSVGroupHandler(final ClassRowWriter writer, final String groupName) {
    		this.writer = writer;
    		this.groupName = groupName;
    	}

    	public void visitBundle(final IBundleCoverage bundle,
    			final ISourceFileLocator locator) throws IOException {
    		final String name = appendName(bundle.getName());
    		for (final IPackageCoverage p : bundle.getPackages()) {
    			final String packageName = p.getName();
    			for (final IClassCoverage c : p.getClasses()) {
    				writer.writeRow(name, packageName, c);
    			}
    		}
    	}

    	public IReportGroupVisitor visitGroup(final String name) throws IOException {
    		return new CSVGroupHandler(writer, appendName(name));
    	}

    	private String appendName(final String name) {
    		return groupName == null ? name : (groupName + "/" + name);
    	}

    }