/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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.
*/
package com.android.server.sip;
import android.net.sip.ISipSession;
import android.net.sip.ISipSessionListener;
import android.net.sip.SipProfile;
import android.os.DeadObjectException;
import android.telephony.Rlog;
/** Class to help safely run a callback in a different thread. */
class SipSessionListenerProxy extends ISipSessionListener.Stub {
private static final String TAG = "SipSessionListnerProxy";
private ISipSessionListener mListener;
public void setListener(ISipSessionListener listener) {
mListener = listener;
}
public ISipSessionListener getListener() {
return mListener;
}
private void proxy(Runnable runnable) {
// One thread for each calling back.
// Note: Guarantee ordering if the issue becomes important. Currently,
// the chance of handling two callback events at a time is none.
new Thread(runnable, "SipSessionCallbackThread").start();
}
@Override
public void onCalling(final ISipSession session) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onCalling(session);
} catch (Throwable t) {
handle(t, "onCalling()");
}
}
});
}
@Override
public void onRinging(final ISipSession session, final SipProfile caller,
final String sessionDescription) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onRinging(session, caller, sessionDescription);
} catch (Throwable t) {
handle(t, "onRinging()");
}
}
});
}
@Override
public void onRingingBack(final ISipSession session) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onRingingBack(session);
} catch (Throwable t) {
handle(t, "onRingingBack()");
}
}
});
}
@Override
public void onCallEstablished(final ISipSession session,
final String sessionDescription) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onCallEstablished(session, sessionDescription);
} catch (Throwable t) {
handle(t, "onCallEstablished()");
}
}
});
}
@Override
public void onCallEnded(final ISipSession session) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onCallEnded(session);
} catch (Throwable t) {
handle(t, "onCallEnded()");
}
}
});
}
@Override
public void onCallTransferring(final ISipSession newSession,
final String sessionDescription) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onCallTransferring(newSession, sessionDescription);
} catch (Throwable t) {
handle(t, "onCallTransferring()");
}
}
});
}
@Override
public void onCallBusy(final ISipSession session) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onCallBusy(session);
} catch (Throwable t) {
handle(t, "onCallBusy()");
}
}
});
}
@Override
public void onCallChangeFailed(final ISipSession session,
final int errorCode, final String message) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onCallChangeFailed(session, errorCode, message);
} catch (Throwable t) {
handle(t, "onCallChangeFailed()");
}
}
});
}
@Override
public void onError(final ISipSession session, final int errorCode,
final String message) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onError(session, errorCode, message);
} catch (Throwable t) {
handle(t, "onError()");
}
}
});
}
@Override
public void onRegistering(final ISipSession session) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onRegistering(session);
} catch (Throwable t) {
handle(t, "onRegistering()");
}
}
});
}
@Override
public void onRegistrationDone(final ISipSession session,
final int duration) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onRegistrationDone(session, duration);
} catch (Throwable t) {
handle(t, "onRegistrationDone()");
}
}
});
}
@Override
public void onRegistrationFailed(final ISipSession session,
final int errorCode, final String message) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onRegistrationFailed(session, errorCode, message);
} catch (Throwable t) {
handle(t, "onRegistrationFailed()");
}
}
});
}
@Override
public void onRegistrationTimeout(final ISipSession session) {
if (mListener == null) return;
proxy(new Runnable() {
@Override
public void run() {
try {
mListener.onRegistrationTimeout(session);
} catch (Throwable t) {
handle(t, "onRegistrationTimeout()");
}
}
});
}
private void handle(Throwable t, String message) {
if (t instanceof DeadObjectException) {
mListener = null;
// This creates race but it's harmless. Just don't log the error
// when it happens.
} else if (mListener != null) {
loge(message, t);
}
}
private void log(String s) {
Rlog.d(TAG, s);
}
private void loge(String s, Throwable t) {
Rlog.e(TAG, s, t);
}
}
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