org.eclipse.xtend.ide.builder.XtendParallelBuilderParticipant.java Source code

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Here is the source code for org.eclipse.xtend.ide.builder.XtendParallelBuilderParticipant.java

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/*******************************************************************************
 * Copyright (c) 2011, 2017 itemis AG (http://www.itemis.eu) and others.
 * 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
 *******************************************************************************/
package org.eclipse.xtend.ide.builder;

import static com.google.common.collect.Maps.*;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;

import org.apache.log4j.Logger;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.xtext.builder.ParallelBuilderParticipant;
import org.eclipse.xtext.generator.OutputConfiguration;

import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;

/**
 * @author Sven Efftinge - Initial contribution and API
 * @author Anton Kosyakov - parallel support
 */
public class XtendParallelBuilderParticipant extends ParallelBuilderParticipant {

    private final static Logger logger = Logger.getLogger(XtendParallelBuilderParticipant.class);

    @Override
    protected Map<OutputConfiguration, Iterable<IMarker>> getGeneratorMarkers(IProject builtProject,
            Collection<OutputConfiguration> outputConfigurations) throws CoreException {
        Map<OutputConfiguration, Iterable<IMarker>> generatorMarkers = newHashMap();
        List<IPath> sourcePath = getSourceFolderPathes(builtProject);
        for (OutputConfiguration config : outputConfigurations) {
            if (config.isCleanUpDerivedResources()) {
                List<IContainer> containerToSearchIn = Lists.newArrayList();
                for (IPath sourceFolder : sourcePath) {
                    if (sourceFolder.segmentCount() == 1) {
                        containerToSearchIn.add(builtProject);
                    } else {
                        IContainer sourcePathBasedContainer = builtProject.getWorkspace().getRoot()
                                .getFolder(sourceFolder);
                        containerToSearchIn.add(sourcePathBasedContainer);
                    }
                }
                Collection<IMarker> markers = Lists.newArrayList();
                for (IContainer container : containerToSearchIn) {
                    Iterables.addAll(markers, getDerivedResourceMarkers().findDerivedResourceMarkers(container,
                            getGeneratorIdProvider().getGeneratorIdentifier()));
                }
                generatorMarkers.put(config, markers);
            }
        }
        return buildGeneratorMarkersReverseLookupMap(generatorMarkers);
    }

    public List<IPath> getSourceFolderPathes(IProject project) {
        List<IPath> sourceFolder = Lists.newArrayList();
        try {
            if (project.isOpen() && project.hasNature(JavaCore.NATURE_ID)) {
                IJavaProject javaProject = JavaCore.create(project);
                List<IPackageFragmentRoot> packageFragmentRoots = Arrays
                        .asList(javaProject.getPackageFragmentRoots());
                for (IPackageFragmentRoot packageFragmentRoot : packageFragmentRoots) {
                    if (packageFragmentRoot.getKind() == IPackageFragmentRoot.K_SOURCE) {
                        IPath path = packageFragmentRoot.getPath();
                        sourceFolder.add(path);
                    }
                }
            }
        } catch (JavaModelException e) {
            if (!e.isDoesNotExist())
                logger.error(e.getMessage(), e);
        } catch (CoreException e) {
            logger.error(e.getMessage(), e);
        }
        return sourceFolder;
    }

}