# MultiReportVisitor.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;

    import java.io.IOException;
    import java.util.ArrayList;
    import java.util.Collection;
    import java.util.List;

    import org.jacoco.core.analysis.IBundleCoverage;
    import org.jacoco.core.data.ExecutionData;
    import org.jacoco.core.data.SessionInfo;

    /**
     * A report visitor that is composed from multiple other visitors. This can be
     * used to create more than one report format in one run.
     */
    public class MultiReportVisitor extends MultiGroupVisitor implements
    		IReportVisitor {

    	private final List<IReportVisitor> visitors;

    	/**
    	 * New visitor delegating to all given visitors.
    	 *
    	 * @param visitors
    	 *            visitors to delegate to
    	 */
    	public MultiReportVisitor(final List<IReportVisitor> visitors) {
    		super(visitors);
    		this.visitors = visitors;
    	}

    	public void visitInfo(final List<SessionInfo> sessionInfos,
    			final Collection<ExecutionData> executionData) throws IOException {
    		for (final IReportVisitor v : visitors) {
    			v.visitInfo(sessionInfos, executionData);
    		}
    	}

    	public void visitEnd() throws IOException {
    		for (final IReportVisitor v : visitors) {
    			v.visitEnd();
    		}
    	}

    }

    class MultiGroupVisitor implements IReportGroupVisitor {

    	private final List<? extends IReportGroupVisitor> visitors;

    	MultiGroupVisitor(final List<? extends IReportGroupVisitor> visitors) {
    		this.visitors = visitors;
    	}

    	public void visitBundle(final IBundleCoverage bundle,
    			final ISourceFileLocator locator) throws IOException {
    		for (final IReportGroupVisitor v : visitors) {
    			v.visitBundle(bundle, locator);
    		}
    	}

    	public IReportGroupVisitor visitGroup(final String name) throws IOException {
    		final List<IReportGroupVisitor> children = new ArrayList<IReportGroupVisitor>();
    		for (final IReportGroupVisitor v : visitors) {
    			children.add(v.visitGroup(name));
    		}
    		return new MultiGroupVisitor(children);
    	}

    }