scoutdoc.main.check.dashboard.OutputElementComparator.java Source code

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Here is the source code for scoutdoc.main.check.dashboard.OutputElementComparator.java

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/*******************************************************************************
 * Copyright (c) 2012 BSI Business Systems Integration 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:
 *     BSI Business Systems Integration AG - initial API and implementation
 ******************************************************************************/

package scoutdoc.main.check.dashboard;

import java.util.Comparator;

import scoutdoc.main.check.Check;
import scoutdoc.main.check.Severity;
import scoutdoc.main.check.dashboard.DashboardWriter.Column;

import com.google.common.collect.ComparisonChain;
import com.google.common.collect.Ordering;

class OutputElementComparator implements Comparator<OutputElement> {
    private final Column[] columns;

    public OutputElementComparator(Column... columns) {
        this.columns = columns;
    }

    @Override
    public int compare(OutputElement e1, OutputElement e2) {
        Check c1 = e1.getCheck();
        Check c2 = e2.getCheck();
        ComparisonChain cc = ComparisonChain.start();
        for (Column column : columns) {
            switch (column) {
            case PAGE:
                cc = cc.compare(c1.getPage(), c2.getPage());
                break;
            case NAMESPACE:
                cc = cc.compare(c1.getPage().getType().name(), c2.getPage().getType().name());
                break;
            case TYPE:
                cc = cc.compare(c1.getSeverity(), c2.getSeverity(),
                        Ordering.explicit(Severity.error, Severity.warning, Severity.info))
                        .compare(c1.getType(), c2.getType());
                break;
            default:
                throw new IllegalStateException("Unexpected column type");
            }
        }
        return cc.result();
    }
}