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sejda core model conversion services

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/*
 * Created on Sep 12, 2011
 * Copyright 2010 by Eduard Weissmann ([email protected]).
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at 
 * 
 * http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
 * See the License for the specific language governing permissions and 
 * limitations under the License. 
 */
package org.sejda.conversion;

import java.util.Set;

import org.sejda.common.collection.NullSafeSet;
import org.sejda.conversion.BasePageRangeAdapter.PageRangeAdapter;
import org.sejda.model.pdf.page.PageRange;

/**
 * Adapter for a set of {@link PageRange}s, providing initialization from {@link String}
 * 
 * @author Eduard Weissmann
 * 
 */
public class PageRangeSetAdapter {

    private static final String SEPARATOR = ",";

    private final Set pageRangeSet = new NullSafeSet();

    public PageRangeSetAdapter(String rawString) {
        if (AdapterUtils.isAllPages(rawString)) {
            pageRangeSet.add(new PageRange(1));
            return;
        }

        String[] tokens = AdapterUtils.splitAndTrim(rawString, SEPARATOR);
        for (String eachToken : tokens) {
            pageRangeSet.add(new PageRangeAdapter(eachToken).getPageRange());
        }
    }

    public Set getPageRangeSet() {
        return pageRangeSet;
    }
}