org.eclipse.xtext.formatting2.regionaccess.internal.SemanticRegionInIterableFinder.java Source code

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Here is the source code for org.eclipse.xtext.formatting2.regionaccess.internal.SemanticRegionInIterableFinder.java

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/*******************************************************************************
 * Copyright (c) 2015 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.xtext.formatting2.regionaccess.internal;

import org.eclipse.xtext.formatting2.regionaccess.ISemanticRegion;

import com.google.common.base.Predicate;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableList.Builder;

/**
 * @author Moritz Eysholdt - Initial contribution and API
 */
public class SemanticRegionInIterableFinder extends AbstractSemanticRegionsFinder {

    private final Iterable<ISemanticRegion> regions;

    public SemanticRegionInIterableFinder(Iterable<ISemanticRegion> regions) {
        super();
        this.regions = regions;
    }

    @Override
    protected ImmutableList<ISemanticRegion> findAll(Predicate<ISemanticRegion> predicate) {
        Builder<ISemanticRegion> builder = ImmutableList.builder();
        for (ISemanticRegion region : regions)
            if (predicate.apply(region))
                builder.add(region);
        return builder.build();
    }

    @Override
    protected ISemanticRegion findFirst(Predicate<ISemanticRegion> predicate) {
        for (ISemanticRegion region : regions)
            if (predicate.apply(region))
                return region;
        return null;
    }
}