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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.net.lowpan;
     18 
     19 import android.os.ServiceSpecificException;
     20 import android.util.AndroidException;
     21 
     22 /**
     23  * <code>LowpanException</code> is thrown if an action to a LoWPAN interface could not be performed
     24  * or a LoWPAN interface property could not be fetched or changed.
     25  *
     26  * @see LowpanInterface
     27  * @hide
     28  */
     29 // @SystemApi
     30 public class LowpanException extends AndroidException {
     31     public LowpanException() {}
     32 
     33     public LowpanException(String message) {
     34         super(message);
     35     }
     36 
     37     public LowpanException(String message, Throwable cause) {
     38         super(message, cause);
     39     }
     40 
     41     public LowpanException(Exception cause) {
     42         super(cause);
     43     }
     44 
     45     /* This method returns LowpanException so that the caller
     46      * can add "throw" before the invocation of this method.
     47      * This might seem superfluous, but it is actually to
     48      * help provide a hint to the java compiler that this
     49      * function will not return.
     50      */
     51     static LowpanException rethrowFromServiceSpecificException(ServiceSpecificException e)
     52             throws LowpanException {
     53         switch (e.errorCode) {
     54             case ILowpanInterface.ERROR_DISABLED:
     55                 throw new InterfaceDisabledException(e);
     56 
     57             case ILowpanInterface.ERROR_WRONG_STATE:
     58                 throw new WrongStateException(e);
     59 
     60             case ILowpanInterface.ERROR_CANCELED:
     61                 throw new OperationCanceledException(e);
     62 
     63             case ILowpanInterface.ERROR_JOIN_FAILED_UNKNOWN:
     64                 throw new JoinFailedException(e);
     65 
     66             case ILowpanInterface.ERROR_JOIN_FAILED_AT_SCAN:
     67                 throw new JoinFailedAtScanException(e);
     68 
     69             case ILowpanInterface.ERROR_JOIN_FAILED_AT_AUTH:
     70                 throw new JoinFailedAtAuthException(e);
     71 
     72             case ILowpanInterface.ERROR_FORM_FAILED_AT_SCAN:
     73                 throw new NetworkAlreadyExistsException(e);
     74 
     75             case ILowpanInterface.ERROR_FEATURE_NOT_SUPPORTED:
     76                 throw new LowpanException(
     77                         e.getMessage() != null ? e.getMessage() : "Feature not supported", e);
     78 
     79             case ILowpanInterface.ERROR_NCP_PROBLEM:
     80                 throw new LowpanRuntimeException(
     81                         e.getMessage() != null ? e.getMessage() : "NCP problem", e);
     82 
     83             case ILowpanInterface.ERROR_INVALID_ARGUMENT:
     84                 throw new LowpanRuntimeException(
     85                         e.getMessage() != null ? e.getMessage() : "Invalid argument", e);
     86 
     87             case ILowpanInterface.ERROR_UNSPECIFIED:
     88             default:
     89                 throw new LowpanRuntimeException(e);
     90         }
     91     }
     92 }
     93