eu.numberfour.n4js.internal.N4FilebasedWorkspaceResourceSetContainerState.java Source code

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Here is the source code for eu.numberfour.n4js.internal.N4FilebasedWorkspaceResourceSetContainerState.java

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/**
 * Copyright (c) 2016 NumberFour AG.
 * 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:
 *   NumberFour AG - Initial API and implementation
 */
package eu.numberfour.n4js.internal;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.emf.common.util.URI;
import org.eclipse.xtext.resource.containers.ResourceSetBasedAllContainersState;

import com.google.common.base.Optional;
import com.google.common.collect.ImmutableList;
import com.google.inject.Inject;

import eu.numberfour.n4js.projectModel.IN4JSCore;
import eu.numberfour.n4js.projectModel.IN4JSProject;

/**
 */
public class N4FilebasedWorkspaceResourceSetContainerState extends ResourceSetBasedAllContainersState {

    @Inject
    private IN4JSCore in4jscore;

    @Inject
    private N4JSModel n4jsmodel;

    /**
     */
    public N4FilebasedWorkspaceResourceSetContainerState() {
    }

    /**
     * @param handle
     *            uri for the current project prefixed with {@code FileBasedWorkspace#N4FBPRJ}
     * @return a list of visible projects in form of handles.
     */
    @Override
    public List<String> getVisibleContainerHandles(String handle) {

        URI containerURI = FileBasedWorkspace.uriFrom(handle);

        List<String> visiContainers = new ArrayList<>();
        // add self
        visiContainers.add(handle);

        Optional<? extends IN4JSProject> project = in4jscore.findProject(containerURI);

        if (!project.isPresent()) {
            throw new IllegalStateException("No project with handle '" + handle + "' known in current In4jscore.");
        }

        ImmutableList<? extends IN4JSProject> dps = n4jsmodel.getDependencies((N4JSProject) project.get());
        // map uri to handle-form and add.
        dps.forEach(d -> visiContainers.add(FileBasedWorkspace.handleFrom(d.getLocation())));

        return visiContainers;
    }
}