/*

  * This file is part of dependency-check-core.

  *

  * 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.

  *

  * Copyright (c) 2012 Jeremy Long. All Rights Reserved.

  */

 package org.owasp.dependencycheck.data.cwe;

 import java.io.IOException;

 import java.io.InputStream;

 import java.io.ObjectInputStream;

 import java.util.HashMap;

 import java.util.logging.Level;

 import java.util.logging.Logger;

 /**

  *

  * @author Jeremy Long <jeremy.long@owasp.org>

  */

 public final class CweDB {

     /**

      * Empty private constructor as this is a utility class.

      */

     private CweDB() {

         //empty

     }

     /**

      * A HashMap of the CWE data.

      */

     private static final HashMap<String, String> CWE = loadData();

     /**

      * Loads a HashMap containing the CWE data from a resource found in the jar.

      *

      * @return a HashMap of CWE data

      */

     private static HashMap<String, String> loadData() {

         ObjectInputStream oin = null;

         try {

             final String filePath = "data/cwe.hashmap.serialized";

             final InputStream input = CweDB.class.getClassLoader().getResourceAsStream(filePath);

             oin = new ObjectInputStream(input);

             return (HashMap<String, String>) oin.readObject();

         } catch (ClassNotFoundException ex) {

             Logger.getLogger(CweDB.class.getName()).log(Level.WARNING, "Unable to load CWE data. This should not be an issue.");

             Logger.getLogger(CweDB.class.getName()).log(Level.FINE, null, ex);

         } catch (IOException ex) {

             Logger.getLogger(CweDB.class.getName()).log(Level.WARNING, "Unable to load CWE data due to an IO Error. This should not be an issue.");

             Logger.getLogger(CweDB.class.getName()).log(Level.FINE, null, ex);

         } finally {

             if (oin != null) {

                 try {

                     oin.close();

                 } catch (IOException ex) {

                     Logger.getLogger(CweDB.class.getName()).log(Level.FINEST, null, ex);

                 }

             }

         }

         return null;

     }

     /**

      * <p>

      * Returns the full CWE name from the CWE ID.</p>

      *

      * @param cweId the CWE ID

      * @return the full name of the CWE

      */

     public static String getCweName(String cweId) {

         if (cweId != null) {

             return CWE.get(cweId);

         }

         return null;

     }

 }