org.sejda.sambox.util.ObjectIdUtils Maven / Gradle / Ivy

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.sambox.util;

import org.sejda.sambox.cos.COSObjectKey;
import org.sejda.sambox.cos.COSObjectable;

public class ObjectIdUtils {
    private ObjectIdUtils() {}
    
    public static String getObjectIdOf(COSObjectable obj)
    {
        try 
        {
            return getObjectIdOf(obj.getCOSObject().id().objectIdentifier);       
        } 
        catch (Exception ex)
        {
            return "";
        }
    }

    public static String getObjectIdOf(COSObjectKey ident)
    {
        String gen = ident.generation() == 0 ? "" : ident.generation() + "";
        return ident.objectNumber() + "R" + gen;
    }
}