org.axdt.asdoc.scoping.AsdocLibraryScopeProvider.java Source code

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Here is the source code for org.axdt.asdoc.scoping.AsdocLibraryScopeProvider.java

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/*******************************************************************************
 * Copyright (c) 2010 Martin Schnabel <mb0@mb0.org>.
 * 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.axdt.asdoc.scoping;

import java.util.List;
import java.util.Map;
import java.util.WeakHashMap;

import org.axdt.asdoc.access.AsdocLibrary;
import org.axdt.asdoc.access.IDocRootProvider;
import org.axdt.asdoc.model.AsdocRoot;
import org.axdt.avm.scoping.AvmLibraryScopeProvider;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.xtext.resource.ISelectable;

import com.google.common.collect.Lists;
import com.google.inject.Inject;
import com.google.inject.Singleton;

@Singleton
public class AsdocLibraryScopeProvider extends AvmLibraryScopeProvider {

    protected final IDocRootProvider docRootProvider;
    protected Map<ResourceSet, List<ISelectable>> cache;

    @Inject
    public AsdocLibraryScopeProvider(IDocRootProvider docProvider) {
        this.docRootProvider = docProvider;
        cache = new WeakHashMap<ResourceSet, List<ISelectable>>();
    }

    protected List<ISelectable> getLibraries(ResourceSet resourceSet) {
        List<ISelectable> result = cache.get(resourceSet);
        if (result == null) {
            result = Lists.newLinkedList();
            result.add(globals);
            for (AsdocRoot root : docRootProvider.getDocRoots(resourceSet))
                result.add(new AsdocLibrary(root));
            cache.put(resourceSet, result);
        }
        return result;
    }
}