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A library jar that provides APIs for Applications written for the Google Android Platform.
/*
* 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 android.net.sip;
import android.os.RemoteException;
import android.telephony.Rlog;
/**
* Represents a SIP session that is associated with a SIP dialog or a standalone
* transaction not within a dialog.
* You can get a {@link SipSession} from {@link SipManager} with {@link
* SipManager#createSipSession createSipSession()} (when initiating calls) or {@link
* SipManager#getSessionFor getSessionFor()} (when receiving calls).
*/
public final class SipSession {
private static final String TAG = "SipSession";
/**
* Defines SIP session states, such as "registering", "outgoing call", and "in call".
*/
public static class State {
/** When session is ready to initiate a call or transaction. */
public static final int READY_TO_CALL = 0;
/** When the registration request is sent out. */
public static final int REGISTERING = 1;
/** When the unregistration request is sent out. */
public static final int DEREGISTERING = 2;
/** When an INVITE request is received. */
public static final int INCOMING_CALL = 3;
/** When an OK response is sent for the INVITE request received. */
public static final int INCOMING_CALL_ANSWERING = 4;
/** When an INVITE request is sent. */
public static final int OUTGOING_CALL = 5;
/** When a RINGING response is received for the INVITE request sent. */
public static final int OUTGOING_CALL_RING_BACK = 6;
/** When a CANCEL request is sent for the INVITE request sent. */
public static final int OUTGOING_CALL_CANCELING = 7;
/** When a call is established. */
public static final int IN_CALL = 8;
/** When an OPTIONS request is sent. */
public static final int PINGING = 9;
/** When ending a call. @hide */
public static final int ENDING_CALL = 10;
/** Not defined. */
public static final int NOT_DEFINED = 101;
/**
* Converts the state to string.
*/
public static String toString(int state) {
switch (state) {
case READY_TO_CALL:
return "READY_TO_CALL";
case REGISTERING:
return "REGISTERING";
case DEREGISTERING:
return "DEREGISTERING";
case INCOMING_CALL:
return "INCOMING_CALL";
case INCOMING_CALL_ANSWERING:
return "INCOMING_CALL_ANSWERING";
case OUTGOING_CALL:
return "OUTGOING_CALL";
case OUTGOING_CALL_RING_BACK:
return "OUTGOING_CALL_RING_BACK";
case OUTGOING_CALL_CANCELING:
return "OUTGOING_CALL_CANCELING";
case IN_CALL:
return "IN_CALL";
case PINGING:
return "PINGING";
default:
return "NOT_DEFINED";
}
}
private State() {
}
}
/**
* Listener for events relating to a SIP session, such as when a session is being registered
* ("on registering") or a call is outgoing ("on calling").
* Many of these events are also received by {@link SipAudioCall.Listener}.
*/
public static class Listener {
/**
* Called when an INVITE request is sent to initiate a new call.
*
* @param session the session object that carries out the transaction
*/
public void onCalling(SipSession session) {
}
/**
* Called when an INVITE request is received.
*
* @param session the session object that carries out the transaction
* @param caller the SIP profile of the caller
* @param sessionDescription the caller's session description
*/
public void onRinging(SipSession session, SipProfile caller,
String sessionDescription) {
}
/**
* Called when a RINGING response is received for the INVITE request sent
*
* @param session the session object that carries out the transaction
*/
public void onRingingBack(SipSession session) {
}
/**
* Called when the session is established.
*
* @param session the session object that is associated with the dialog
* @param sessionDescription the peer's session description
*/
public void onCallEstablished(SipSession session,
String sessionDescription) {
}
/**
* Called when the session is terminated.
*
* @param session the session object that is associated with the dialog
*/
public void onCallEnded(SipSession session) {
}
/**
* Called when the peer is busy during session initialization.
*
* @param session the session object that carries out the transaction
*/
public void onCallBusy(SipSession session) {
}
/**
* Called when the call is being transferred to a new one.
*
* @hide
* @param newSession the new session that the call will be transferred to
* @param sessionDescription the new peer's session description
*/
public void onCallTransferring(SipSession newSession,
String sessionDescription) {
}
/**
* Called when an error occurs during session initialization and
* termination.
*
* @param session the session object that carries out the transaction
* @param errorCode error code defined in {@link SipErrorCode}
* @param errorMessage error message
*/
public void onError(SipSession session, int errorCode,
String errorMessage) {
}
/**
* Called when an error occurs during session modification negotiation.
*
* @param session the session object that carries out the transaction
* @param errorCode error code defined in {@link SipErrorCode}
* @param errorMessage error message
*/
public void onCallChangeFailed(SipSession session, int errorCode,
String errorMessage) {
}
/**
* Called when a registration request is sent.
*
* @param session the session object that carries out the transaction
*/
public void onRegistering(SipSession session) {
}
/**
* Called when registration is successfully done.
*
* @param session the session object that carries out the transaction
* @param duration duration in second before the registration expires
*/
public void onRegistrationDone(SipSession session, int duration) {
}
/**
* Called when the registration fails.
*
* @param session the session object that carries out the transaction
* @param errorCode error code defined in {@link SipErrorCode}
* @param errorMessage error message
*/
public void onRegistrationFailed(SipSession session, int errorCode,
String errorMessage) {
}
/**
* Called when the registration gets timed out.
*
* @param session the session object that carries out the transaction
*/
public void onRegistrationTimeout(SipSession session) {
}
}
private final ISipSession mSession;
private Listener mListener;
SipSession(ISipSession realSession) {
mSession = realSession;
if (realSession != null) {
try {
realSession.setListener(createListener());
} catch (RemoteException e) {
loge("SipSession.setListener:", e);
}
}
}
SipSession(ISipSession realSession, Listener listener) {
this(realSession);
setListener(listener);
}
/**
* Gets the IP address of the local host on which this SIP session runs.
*
* @return the IP address of the local host
*/
public String getLocalIp() {
try {
return mSession.getLocalIp();
} catch (RemoteException e) {
loge("getLocalIp:", e);
return "127.0.0.1";
}
}
/**
* Gets the SIP profile that this session is associated with.
*
* @return the SIP profile that this session is associated with
*/
public SipProfile getLocalProfile() {
try {
return mSession.getLocalProfile();
} catch (RemoteException e) {
loge("getLocalProfile:", e);
return null;
}
}
/**
* Gets the SIP profile that this session is connected to. Only available
* when the session is associated with a SIP dialog.
*
* @return the SIP profile that this session is connected to
*/
public SipProfile getPeerProfile() {
try {
return mSession.getPeerProfile();
} catch (RemoteException e) {
loge("getPeerProfile:", e);
return null;
}
}
/**
* Gets the session state. The value returned must be one of the states in
* {@link State}.
*
* @return the session state
*/
public int getState() {
try {
return mSession.getState();
} catch (RemoteException e) {
loge("getState:", e);
return State.NOT_DEFINED;
}
}
/**
* Checks if the session is in a call.
*
* @return true if the session is in a call
*/
public boolean isInCall() {
try {
return mSession.isInCall();
} catch (RemoteException e) {
loge("isInCall:", e);
return false;
}
}
/**
* Gets the call ID of the session.
*
* @return the call ID
*/
public String getCallId() {
try {
return mSession.getCallId();
} catch (RemoteException e) {
loge("getCallId:", e);
return null;
}
}
/**
* Sets the listener to listen to the session events. A {@code SipSession}
* can only hold one listener at a time. Subsequent calls to this method
* override the previous listener.
*
* @param listener to listen to the session events of this object
*/
public void setListener(Listener listener) {
mListener = listener;
}
/**
* Performs registration to the server specified by the associated local
* profile. The session listener is called back upon success or failure of
* registration. The method is only valid to call when the session state is
* in {@link State#READY_TO_CALL}.
*
* @param duration duration in second before the registration expires
* @see Listener
*/
public void register(int duration) {
try {
mSession.register(duration);
} catch (RemoteException e) {
loge("register:", e);
}
}
/**
* Performs unregistration to the server specified by the associated local
* profile. Unregistration is technically the same as registration with zero
* expiration duration. The session listener is called back upon success or
* failure of unregistration. The method is only valid to call when the
* session state is in {@link State#READY_TO_CALL}.
*
* @see Listener
*/
public void unregister() {
try {
mSession.unregister();
} catch (RemoteException e) {
loge("unregister:", e);
}
}
/**
* Initiates a call to the specified profile. The session listener is called
* back upon defined session events. The method is only valid to call when
* the session state is in {@link State#READY_TO_CALL}.
*
* @param callee the SIP profile to make the call to
* @param sessionDescription the session description of this call
* @param timeout the session will be timed out if the call is not
* established within {@code timeout} seconds. Default value (defined
* by SIP protocol) is used if {@code timeout} is zero or negative.
* @see Listener
*/
public void makeCall(SipProfile callee, String sessionDescription,
int timeout) {
try {
mSession.makeCall(callee, sessionDescription, timeout);
} catch (RemoteException e) {
loge("makeCall:", e);
}
}
/**
* Answers an incoming call with the specified session description. The
* method is only valid to call when the session state is in
* {@link State#INCOMING_CALL}.
*
* @param sessionDescription the session description to answer this call
* @param timeout the session will be timed out if the call is not
* established within {@code timeout} seconds. Default value (defined
* by SIP protocol) is used if {@code timeout} is zero or negative.
*/
public void answerCall(String sessionDescription, int timeout) {
try {
mSession.answerCall(sessionDescription, timeout);
} catch (RemoteException e) {
loge("answerCall:", e);
}
}
/**
* Ends an established call, terminates an outgoing call or rejects an
* incoming call. The method is only valid to call when the session state is
* in {@link State#IN_CALL},
* {@link State#INCOMING_CALL},
* {@link State#OUTGOING_CALL} or
* {@link State#OUTGOING_CALL_RING_BACK}.
*/
public void endCall() {
try {
mSession.endCall();
} catch (RemoteException e) {
loge("endCall:", e);
}
}
/**
* Changes the session description during a call. The method is only valid
* to call when the session state is in {@link State#IN_CALL}.
*
* @param sessionDescription the new session description
* @param timeout the session will be timed out if the call is not
* established within {@code timeout} seconds. Default value (defined
* by SIP protocol) is used if {@code timeout} is zero or negative.
*/
public void changeCall(String sessionDescription, int timeout) {
try {
mSession.changeCall(sessionDescription, timeout);
} catch (RemoteException e) {
loge("changeCall:", e);
}
}
ISipSession getRealSession() {
return mSession;
}
private ISipSessionListener createListener() {
return new ISipSessionListener.Stub() {
@Override
public void onCalling(ISipSession session) {
if (mListener != null) {
mListener.onCalling(SipSession.this);
}
}
@Override
public void onRinging(ISipSession session, SipProfile caller,
String sessionDescription) {
if (mListener != null) {
mListener.onRinging(SipSession.this, caller,
sessionDescription);
}
}
@Override
public void onRingingBack(ISipSession session) {
if (mListener != null) {
mListener.onRingingBack(SipSession.this);
}
}
@Override
public void onCallEstablished(ISipSession session,
String sessionDescription) {
if (mListener != null) {
mListener.onCallEstablished(SipSession.this,
sessionDescription);
}
}
@Override
public void onCallEnded(ISipSession session) {
if (mListener != null) {
mListener.onCallEnded(SipSession.this);
}
}
@Override
public void onCallBusy(ISipSession session) {
if (mListener != null) {
mListener.onCallBusy(SipSession.this);
}
}
@Override
public void onCallTransferring(ISipSession session,
String sessionDescription) {
if (mListener != null) {
mListener.onCallTransferring(
new SipSession(session, SipSession.this.mListener),
sessionDescription);
}
}
@Override
public void onCallChangeFailed(ISipSession session, int errorCode,
String message) {
if (mListener != null) {
mListener.onCallChangeFailed(SipSession.this, errorCode,
message);
}
}
@Override
public void onError(ISipSession session, int errorCode, String message) {
if (mListener != null) {
mListener.onError(SipSession.this, errorCode, message);
}
}
@Override
public void onRegistering(ISipSession session) {
if (mListener != null) {
mListener.onRegistering(SipSession.this);
}
}
@Override
public void onRegistrationDone(ISipSession session, int duration) {
if (mListener != null) {
mListener.onRegistrationDone(SipSession.this, duration);
}
}
@Override
public void onRegistrationFailed(ISipSession session, int errorCode,
String message) {
if (mListener != null) {
mListener.onRegistrationFailed(SipSession.this, errorCode,
message);
}
}
@Override
public void onRegistrationTimeout(ISipSession session) {
if (mListener != null) {
mListener.onRegistrationTimeout(SipSession.this);
}
}
};
}
private void loge(String s, Throwable t) {
Rlog.e(TAG, s, t);
}
}