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      1 /*
      2  * Copyright (C) 2008 Esmertec AG.
      3  * Copyright (C) 2008 The Android Open Source Project
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at
      8  *
      9  *      http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  */
     17 package com.android.im.imps;
     18 
     19 import com.android.im.engine.ImException;
     20 import com.android.im.plugin.PasswordDigest;
     21 
     22 import dalvik.system.PathClassLoader;
     23 
     24 public class CustomPasswordDigest implements PasswordDigest {
     25 
     26     private PasswordDigest mPasswordDigest;
     27     public CustomPasswordDigest(String pluginPath, String implClass) throws ImException {
     28         PathClassLoader classLoader = new PathClassLoader(pluginPath,
     29                 getClass().getClassLoader());
     30         try {
     31             Class<?> cls = classLoader.loadClass(implClass);
     32             mPasswordDigest = (PasswordDigest)cls.newInstance();
     33         } catch (ClassNotFoundException e) {
     34             throw new ImException(e);
     35         } catch (IllegalAccessException e) {
     36             throw new ImException(e);
     37         } catch (InstantiationException e) {
     38             throw new ImException(e);
     39         }
     40     }
     41     public String digest(String schema, String nonce, String password) throws ImException {
     42         return mPasswordDigest.digest(schema, nonce, password);
     43     }
     44 
     45     public String[] getSupportedDigestSchema() {
     46         return mPasswordDigest.getSupportedDigestSchema();
     47     }
     48 
     49 }
     50