package javax.megaco.association;



import javax.megaco.AssociationEvent;



import javax.megaco.ParameterNotSetException;



public class AssociationInd extends AssociationEvent {



	protected AssocIndReason assocIndReason = null;

	protected LocalAddr localAddr = null;

	protected SrvChngReason srvChangeReason = null;

	protected LocalAddr srvChngAddress = null;

	protected LocalAddr handOffMGCId = null;

	protected AssocState assocState = null;

	protected SrvChngReason srvChngMethod = null;

	protected String srvChngMethodExtension = null;

	protected RemoteAddr remoteAddr = null;

	protected Integer srvChngDelay = null;

	protected Integer protocolVersion = null;

	protected String srvChngProfile = null;

	protected String parameterExtension = null;



	/**

	 * Constructs an Association Indication Event object.

	 * 

	 * @param source

	 *            - A reference to the object, the "source", that is logically

	 *            deemed to be the object upon which the Event in question

	 *            initially occurred.

	 * @param assocHandle

	 *            - The association handle to uniquely identify the MG-MGC pair.

	 *            This is allocated by the stack when the Listener registers

	 *            with the provider with a unique MG-MGC identity.

	 * @param assocIndReason

	 *            - This indicates the reason for the change in the state of the

	 *            association.

	 * @throws IllegalArgumentException

	 *             This exception is raised if the reference of Association

	 *             Indication Reason passed to this method is NULL.

	 */

	public AssociationInd(Object source, int assocHandle,

			AssocIndReason assocIndReason) throws IllegalArgumentException {

		super(source, assocHandle);

		if (assocIndReason == null) {

			throw new IllegalArgumentException("assocIndReason can not be null");

		}



		this.assocIndReason = assocIndReason;



	}



	@Override

	public int getAssocOperIdentifier() {

		return AssocEventType.M_ASSOC_STATE_IND;

	}



	/**

	 * Gets the local entity transport address. The local address specifies the

	 * transport address which the stack would use to send MEGACO messages to

	 * peer.

	 * 

	 * @return Returns the local entity transport address. If the local address

	 *         field is not present, then this method would return NULL.

	 */

	public LocalAddr getLocalAddr() {

		return localAddr;

	}



	/**

	 * This method sets the local entity identity. The localAddr specifies the

	 * transport address which the stack would use to send transactions to peer.

	 * 

	 * @param localAddr

	 *            localAddr - The local entity transport address. Since the

	 *            format of the message header Id is same as that of the

	 *            transport address, the value of this may or may not be

	 *            different from the local entity configured in the user Id as

	 *            specified in the addMegacoListener method of MegacoProvider

	 *            interface.

	 * @throws IllegalArgumentException

	 *             This exception is raised if the local transport address

	 *             specified is invalid.

	 */

	public void setLocalAddr(LocalAddr localAddr)

			throws IllegalArgumentException {

		this.localAddr = localAddr;

	}



	/**

	 * Gets the integer value which identifies the service change reason. This

	 * parameter is required on if the application is MG. The MG stack would use

	 * the same ServiceChange Reason in the ServiceChange command request sent

	 * to peer MGC.

	 * 

	 * @return Returns the integer value corresponding to the service change

	 *         reason. If the ServiceChangeReason is not set, then this method

	 *         would return value 0. The possible values are field constants

	 *         defined for the class {@link SrvChngReason}.

	 */

	public int getSrvChangeReason() {

		return srvChangeReason == null ? 0 : srvChangeReason

				.getSrvChngReasonId();

	}



	/**

	 * This method sets the service change reason. This parameter is required on

	 * if the application is MG. The MG stack would use the same ServiceChange

	 * Reason in the ServiceChange command request sent to peer MGC.

	 * 

	 * @param reason

	 *            - The object reference to ServiceChange Reason.

	 * @throws IllegalArgumentException

	 *             This exception is raised if the reference of Service Change

	 *             Reason passed to this method is NULL.

	 */

	public void setSrvChangeReason(SrvChngReason reason)

			throws IllegalArgumentException {

		if (reason == null) {

			throw new IllegalArgumentException("Change reason can not be null");

		}

		this.srvChangeReason = reason;

	}



	/**

	 * Gets the service change address.

	 * 

	 * @return Returns the service change address. if the service change address

	 *         is not set, then this method would return NULL.

	 */

	public LocalAddr getSrvChngAddress() {

		return srvChngAddress;

	}



	/**

	 * This method sets the service change address. The local entity specfied

	 * earlier is the transport address would be used for initial registration

	 * and then subsequently, the address specified in the serviceChngAddress

	 * field would be used for the local transport address. If the application

	 * is MGC, then on receipt of ServiceChange command (on ROOT termination),

	 * it will reply with ServiceChangeAddress field in

	 * serviceChangeReplyDescriptor descriptor, with value as set using this

	 * method. And If the application is MG, then the stack will send the

	 * ServiceChange command (on ROOT termination) with ServiceChangeAddress

	 * field in serviceChangeDescriptor descriptor, with value as set using this

	 * method.

	 * 

	 * @param srvChngAddress

	 *            The service change address.

	 * @throws IllegalArgumentException

	 *             This exception is raised if the service change address

	 *             specified is invalid.

	 */

	public void setSrvChngAddress(LocalAddr srvChngAddress)

			throws IllegalArgumentException {

		// FIXME: IllegalArgumentException

		this.srvChngAddress = srvChngAddress;

	}



	/**

	 * Gets the identity of the MGC to which the association is to be handoffed.

	 * This parameter may be set if the application is MGC.

	 * 

	 * @return Returns the identity of the MGC to which the association is to be

	 *         handoffed. If the HandedOff MGC Id is missing, then method

	 *         returns NULL.

	 */

	public LocalAddr getHandOffMGCId() {

		return handOffMGCId;

	}



	/**

	 * This method sets the identity of the MGC to which the association is to

	 * be handoffed. This parameter may be set if the application is MGC. If

	 * this parameter is set, then on receipt of service change request from MG

	 * (with ROOT termination), the stack will reply with MgcIdToTry field in

	 * serviceChangeDescriptor descriptor, with value as set using this method.

	 * 

	 * @param handOffMGCId

	 *            The identity of the MGC to which the association is to be

	 *            handoffed.

	 * @throws IllegalArgumentException

	 *             This exception is raised if the HandedOffMGCId specified is

	 *             invalid.

	 */

	public void setHandOffMGCId(LocalAddr handOffMGCId)

			throws IllegalArgumentException {

		// FIXME: IllegalArgumentException

		this.handOffMGCId = handOffMGCId;

	}



	// FIXME: jdoc say it returns int, all other methods do....

	/**

	 * Gets the object reference of association state.

	 * 

	 * @return Returns the integer value of association state. The values of the

	 *         association state are defined in AssocState. The association

	 *         state is to be set mandatorily. If the assoc state field is

	 *         missing, then this method would return NULL.

	 */

	public AssocState getAssociationState() {

		return this.assocState;

	}



	/**

	 * This method sets the association state. The values of the association

	 * state are defined in AssocState. The association state is to be set

	 * mandatorily.

	 * 

	 * @param associationState

	 *            The object reference of association state.

	 * @throws IllegalArgumentException

	 *             This exception is raised if the reference of Association

	 *             State passed to this method is NULL.

	 */

	public void setAssociationState(AssocState associationState)

			throws IllegalArgumentException {

		if (associationState == null) {

			throw new IllegalArgumentException("Value can not be null");

		}

		this.assocState = associationState;

	}



	/**

	 * Gets the integer value which identifies the service change method. This

	 * parameter is required on if the application is MG. The MG stack would use

	 * the same ServiceChange Method in ServiceChange command request sent to

	 * peer MGC.

	 * 

	 * @return Returns the integer value corresponding to the service change

	 *         method. If the ServiceChangeMethod is not set, then this method

	 *         would return value 0. The possible values are field constants

	 *         defined for the class SrvChngMethod.

	 */

	public int getSrvChngMethod() {

		return srvChngMethod == null ? 0 : srvChngMethod.getSrvChngReasonId();

	}



	/**

	 * This method sets the service change method. This parameter is required on

	 * if the application is MG. The MG stack would use the same ServiceChange

	 * Method in ServiceChange command request sent to peer MGC.

	 * 

	 * @param method

	 *            - The object reference to ServiceChange Method.

	 * @throws IllegalArgumentException

	 *             This exception is raised if the reference of Service Change

	 *             Reason passed to this method is NULL.

	 */

	public void setSrvChngMethod(SrvChngReason method)

			throws IllegalArgumentException {

		if (method == null) {

			throw new IllegalArgumentException("Change method can not be null");

		}

		this.srvChngMethod = method;

	}



	/**

	 * Gets the string value of the extended service change method.

	 * 

	 * 

	 * @return Returns string value of the extended service change method. This

	 *         is to be set only if the service change method is set to

	 *         {@link javax.megaco.association.SrvChngMethod.M_EXTENSION}.

	 * @throws javax.megaco.association.MethodExtensionException

	 *             javax.megaco.association.MethodExtensionException - Thrown if

	 *             service change method has not been set to

	 *             {@link javax.megaco.association.SrvChngMethod.M_EXTENSION}

	 */

	public java.lang.String getSrvChngMethodExtension()

			throws javax.megaco.association.MethodExtensionException,

			IllegalArgumentException {

		if (getSrvChngMethod() != SrvChngMethod.M_EXTENSION) {

			throw new MethodExtensionException(

					"Changed Method is not equal to {@link javax.megaco.association.SrvChngMethod.M_EXTENSION}");

		}



		return this.srvChngMethodExtension;

	}



	/**

	 * This method sets the extended service change method. This needs to be set

	 * if and only if the service change method is {@link javax.megaco.association.SrvChngMethod.M_EXTENSION}.

	 * 

	 * @param extMethod

	 *            - The string value of the extended service change method.

	 * @throws javax.megaco.association.MethodExtensionException

	 *             - Thrown if service change method has not been set to

	 *             {@link javax.megaco.association.SrvChngMethod.M_EXTENSION}.

	 * @throws IllegalArgumentException

	 *             - Thrown if extension string does not follow the rules of the

	 *             extension parameter, e.g, should start with X+ or X- etc.

	 */

	public void setSrvChngMethodExtension(java.lang.String extMethod)

			throws javax.megaco.association.MethodExtensionException,

			IllegalArgumentException {

		if (getSrvChngMethod() != SrvChngMethod.M_EXTENSION) {

			throw new MethodExtensionException(

					"Changed Method is not equal to SrvChngMethod.{@link javax.megaco.association.SrvChngMethod.M_EXTENSION}");

		}

		// FIXME IllegalArgumentException - Thrown if extension

		// string does not follow the rules of the extension parameter, e.g,

		// should start with X+ or X- etc.

		

		

		this.srvChngMethodExtension = extMethod;

	}



	/**

	 * Gets the List of remote entity transport address for the User Id. The

	 * remote address specified in the address to which the stack would send

	 * MEGACO messages. There is one to one correspondence between the list of

	 * remote address specified here and the list of remote entity Ids in the

	 * UserId class. The messages comming from a particular remote entity must

	 * have same message header Id as the corresponding remote entity Id in

	 * UserId class.

	 * 

	 * @return Returns the list of remote entity transport address. If the

	 *         remote address parameter is not present, then this method would

	 *         return NULL.

	 */

	public RemoteAddr getRemoteAddr() {

		return remoteAddr;

	}



	/**

	 * Sets the list of remote entity identities of the user Id. The remote

	 * address specified in the address to which the stack would send MEGACO

	 * messages. There is one to one correspondence between the list of remote

	 * address specified here and the list of remote entity Ids in the UserId

	 * class. The messages comming from a particular remote entity must have

	 * same message header Id as the corresponding remote entity Id in UserId

	 * class.

	 * 

	 * @param remoteAddr

	 *            -- List of remote entity transport addresses of the MGC/MG.

	 * @throws IllegalArgumentException

	 *             This exception is raised if the reference of Remote Address

	 *             passed to this method is NULL.

	 */

	public void setRemoteAddr(RemoteAddr remoteAddr)

			throws IllegalArgumentException {

		this.remoteAddr = remoteAddr;

	}



	/**

	 * Gets the integer value of the delay parameter for the service change.

	 * This is in milliseconds. This method must be invoked after invoking the

	 * isSrvChngdelayPresent() method. The stack would use the same as the

	 * ServiceChangeDelay in the ServiceChange command request sent to peer.

	 * 

	 * @return Returns the integer value of the delay value in milliseconds.

	 * @throws javax.megaco.ParameterNotSetException

	 *             This exception is raised if the service change delay

	 *             parameter has not been set.

	 */

	public int getSrvChngDelay() throws javax.megaco.ParameterNotSetException {

		if (!isSrvChngDelayPresent()) {

			throw new ParameterNotSetException();

		}



		return this.srvChngDelay;

	}



	/**

	 * Sets the integer value of the delay parameter for the service change.

	 * This is in milliseconds. This automatically sets the service change delay

	 * value to be present. The stack would use the same as the

	 * ServiceChangeDelay in the ServiceChange command request sent to peer.

	 * 

	 * 

	 * @param delay

	 *            - The integer value of the delay value in milliseconds.

	 * @throws IllegalArgumentException

	 *             This exception is raised if the value of service change delay

	 *             passed to this method is less than 0.

	 */

	public void setSrvChngDelay(int delay)

			throws IllegalArgumentException {

		if (delay < 0) {

			throw new IllegalArgumentException(

					"Delay can not be less than zero");

		}



		this.srvChngDelay = delay;



	}



	/**

	 * Returns TRUE if the service change delay parameter is present.

	 * 

	 * @return TRUE if service change delay parameter has been set, else returns

	 *         FALSE.

	 */

	public boolean isSrvChngDelayPresent() {

		return this.srvChngDelay != null;

	}



	/**

	 * This method sets the protocol version value that is to be used for the

	 * specified association.

	 * 

	 * @param version

	 *            The protocol version as an integer value.

	 * @throws IllegalArgumentException

	 *             This exception is raised if the value of protocol version

	 *             passed to this method is less than 0.

	 */

	public void setProtocolVersion(int version)

			throws IllegalArgumentException {

		if (version < 0) {

			throw new IllegalArgumentException(

					"Value can not be less than zero");

		}



		this.protocolVersion = version;

	}



	/**

	 * Identifies whether the protocol version is present.

	 * 

	 * @return Returns true if the protocol version is present.

	 */

	public boolean isProtocolVersionPresent() {

		return this.protocolVersion != null;

	}



	/**

	 * Gets the protocol version value received from peer in the service change.

	 * This is ther protocol version after negotiation.

	 * 

	 * @return Returns the protocol version parameter as an integer value.

	 * @throws javax.megaco.ParameterNotSetException

	 *             This exception is raised if the service change delay has not

	 *             been specified.

	 */

	public int getProtocolVersion()

			throws javax.megaco.ParameterNotSetException {

		if (!isProtocolVersionPresent()) {

			throw new ParameterNotSetException();

		}



		return this.protocolVersion;

	}



	/**

	 * Gets the service change profile value to be sent to peer in the service

	 * change.

	 * 

	 * @return Returns the service change profile parameter as a string value.

	 *         If service change profile is not set then a NULL value is

	 *         returned.

	 */

	public java.lang.String getSrvChngProfile() {

		return this.srvChngProfile;

	}



	public void setSrvChngProfile(java.lang.String profile)

			throws IllegalArgumentException {

		if (profile == null)

			throw new IllegalArgumentException("Value can not be null");

		this.srvChngProfile = profile;

	}



	/**

	 * Gets the string value of the extended service change parameter.

	 * 

	 * @return Returns string value of the extended service change parameter. If

	 *         the service change parameter is not set then this a NULL value is

	 *         returned.

	 */

	public String getParameterExtension() {

		return parameterExtension;

	}



	/**

	 * This method sets the extended service change parameter.

	 * 

	 * @param extMethod

	 *            - The string value of the extended service change parameter.

	 * @throws IllegalArgumentException

	 *             Thrown if extension string does not follow the rules of the

	 *             extension parameter, e.g, should start with X+ or X- etc.

	 */

	public void setParameterExtension(java.lang.String profile)

			throws IllegalArgumentException {

		if (profile == null)

			throw new IllegalArgumentException("Value can not be null");

		// FIXME:IllegalArgumentException - Thrown if extension

		// string does not follow the rules of the extension parameter, e.g,

		// should start with X+ or X- etc.



		this.parameterExtension = profile;

	}



	/**

	 * This method returns the reference of the AssocIndReason object as set for

	 * this class in the constructor.

	 * 

	 * @return Reference of AssocIndReason object.

	 */

	public AssocIndReason getAssocIndReason() {

		return this.assocIndReason;

	}

	



}