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 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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
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package org.apache.pdfbox.preflight.action;

import static org.apache.pdfbox.preflight.PreflightConstants.ERROR_ACTION_INVALID_TYPE;
import static org.apache.pdfbox.preflight.PreflightConstants.ERROR_ACTION_MISING_KEY;

import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSDocument;
import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.preflight.PreflightContext;
import org.apache.pdfbox.preflight.ValidationResult.ValidationError;
import org.apache.pdfbox.preflight.utils.COSUtils;

/**
 * ActionManager for the URI action URI action is valid if the URI entry is present as a String.
 */
public class UriAction extends AbstractActionManager
{

    /**
     * @param amFact Instance of ActionManagerFactory used to create ActionManager to check Next actions.
     * @param adict the COSDictionary of the action wrapped by this class.
     * @param ctx the preflight context-
     * @param aaKey the name of the key which identify the action in a additional action dictionary.
     */
    public UriAction(ActionManagerFactory amFact, COSDictionary adict, PreflightContext ctx, String aaKey)
    {
        super(amFact, adict, ctx, aaKey);
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.apache.pdfbox.preflight.action.AbstractActionManager#valid(java.util .List)
     */
    @Override
    protected boolean innerValid()
    {
        COSBase uri = this.actionDictionnary.getItem(COSName.URI);
        if (uri == null)
        {
            context.addValidationError(new ValidationError(ERROR_ACTION_MISING_KEY,
                    "URI entry is mandatory for the UriAction"));
            return false;
        }

        COSDocument cosDocument = this.context.getDocument().getDocument();
        if (!COSUtils.isString(uri, cosDocument))
        {
            context.addValidationError(new ValidationError(ERROR_ACTION_INVALID_TYPE, "URI entry should be a string"));
            return false;
        }

        return true;
    }
}
