jecfile.java

java 写的一个新闻发布系统

//
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//                       __/\ ______|    |__/\.     _______
//            __   .____|    |       \   |    +----+       \
//    _______|  /--|    |    |    -   \  _    |    :    -   \_________
//   \\______: :---|    :    :           |    :    |         \________>
//           |__\---\_____________:______:    :____|____:_____\
//                                      /_____|
//
//                 . . . i n   j a h i a   w e   t r u s t . . .
//

package org.jahia.services.jef;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileNotFoundException;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.File;
import java.io.EOFException;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.util.zip.CRC32;
import java.util.*;

import org.jahia.security.license.*;
import org.jahia.utils.JahiaConsole;
import org.jahia.registries.ServicesRegistry;
import org.jahia.exceptions.JahiaException;


/**
 * Load and extract data from a JEC file
 *
 * @author  Khue Nguyen
 * @version 1.0
 */
public final class JecFile extends JefFile

{

	private  final String CLASS_NAME = "JecFile";  
	 
    //-------------------------------------------------------------------------
    /**
     * Construct a jef file object by extracting encrypted
     * information out of the specified jef file.
     *
     * @param String the full path to the file
     *
     * @exception   InvalidJefException
     *      Throws this exception when the specified jef file is
     *      not valid.
     */
    public JecFile (String path)
        throws  IOException, JahiaException, InvalidJefFileException
    {
        super(path);
    }


    //-------------------------------------------------------------------------
    /**
	 * Return the license type
	 *
	 * @return int the license type
	 */
	public int getLicenseType() 
	throws JefFileKeyNotFoundException, JefFileInvalidKeyValueException {
		
		String val = getKey(LicenseConstants.LICENSE_TYPE_OPTION);
		if ( val == null ){
			throw new JefFileKeyNotFoundException(LicenseConstants.LICENSE_TYPE_OPTION);
		}

		JahiaConsole.println(CLASS_NAME," getLicenseType val=" + val );
		
		try {
			return Integer.parseInt(val);						
		} catch ( Throwable t ){
			throw new JefFileInvalidKeyValueException(LicenseConstants.LICENSE_TYPE_OPTION);	
		}
	} 


    //-------------------------------------------------------------------------
    /**
	 * Return the license type relational comparator
	 *
	 * @return int the license type Relational Comparator
	 * @see LicenseConstants
	 */
	public int getLicenseTypeRelComp() 
	throws JefFileKeyNotFoundException, JefFileInvalidKeyValueException {
		
		String val = getKey(LicenseConstants.LICENSE_TYPE_RELCOMP_OPTION);
		if ( val == null ){
			throw new JefFileKeyNotFoundException(LicenseConstants.LICENSE_TYPE_RELCOMP_OPTION);
		}

		JahiaConsole.println(CLASS_NAME," getLicenseTypeRelComp val=" + val );
		
		try {
			return Integer.parseInt(val);						
		} catch ( Throwable t ){
			throw new JefFileInvalidKeyValueException(LicenseConstants.LICENSE_TYPE_RELCOMP_OPTION);	
		}
	} 

}