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      1 /*
      2  * Copyright (C) 2010 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 com.android.internal.telephony.sip;
     18 
     19 import com.android.internal.telephony.Call;
     20 import com.android.internal.telephony.Connection;
     21 import java.util.Iterator;
     22 import java.util.List;
     23 
     24 abstract class SipCallBase extends Call {
     25 
     26     protected abstract void setState(State newState);
     27 
     28     @Override
     29     public List<Connection> getConnections() {
     30         // FIXME should return Collections.unmodifiableList();
     31         return mConnections;
     32     }
     33 
     34     @Override
     35     public boolean isMultiparty() {
     36         return mConnections.size() > 1;
     37     }
     38 
     39     @Override
     40     public String toString() {
     41         return mState.toString() + ":" + super.toString();
     42     }
     43 
     44     void clearDisconnected() {
     45         for (Iterator<Connection> it = mConnections.iterator(); it.hasNext(); ) {
     46             Connection c = it.next();
     47             if (c.getState() == State.DISCONNECTED) it.remove();
     48         }
     49 
     50         if (mConnections.isEmpty()) setState(State.IDLE);
     51     }
     52 }
     53