/*******************************************************************************
 *  Copyright 2017-2018 Centre for Development of Advanced Computing(C-DAC), Pune
 *  
 * 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 cdac.medinfo.sdk.dcm30_04.services.rtmachineverificationservice.testcases.ndelete;

import cdac.medinfo.sdk.dcm30_04.enums.EnumLoggingLevel;
import cdac.medinfo.sdk.dcm30_04.enums.EnumPDUType;
import cdac.medinfo.sdk.dcm30_04.enums.EnumSOPClassUIDs;

import cdac.medinfo.sdk.dcm30_04.services.association.AAbort;
import cdac.medinfo.sdk.dcm30_04.services.association.AReleaseRQorRP;
import cdac.medinfo.sdk.dcm30_04.services.association.AssociateRQ;
import cdac.medinfo.sdk.dcm30_04.services.association.DefaultAssociation;
import cdac.medinfo.sdk.dcm30_04.services.dicomnetcommons.EnumServiceType;
import cdac.medinfo.sdk.dcm30_04.services.dimsecommons.DicomMessage;
import cdac.medinfo.sdk.dcm30_04.services.ndelete.commons.NDeleteRQ;
import cdac.medinfo.sdk.dcm30_04.services.ndelete.commons.NDeleteRSP;
import cdac.medinfo.sdk.dcm30_04.services.ndelete.scu.NDeleteSCU;
import cdac.medinfo.sdk.dcm30_04.services.rtmachineverificationservice.scu.RTMachineVerification_SCU;
import cdac.medinfo.sdk.dcm30_04.services.scu.commons.SCUSession;
import cdac.medinfo.sdk.dcm30_04.utils.DicomConfig;
import cdac.medinfo.sdk.dcm30_04.utils.ISingleCollection;

/**
/**
 * This sample code specifies the role of RT Ion Machine Verification SCU for N-Delete Service.
 * It uses RT Ion Machine Verification SCU to send the request to SCP.
 * In order to run the following class , please refer to this link($Link) to create the environment.
 * To implement an SCU of a particular we need to do the following things:
 * Create the SCUSession object which maintains the current session of the SCU. Its "start" method accepts
 * the SCP's IP Address and Port and tries to establish a connection with the SCP.
 * 
 * In order to run the following class , please refer to this link($Link) to create the environment.
 * To implement an SCU of a particular we need to do the following things:
 * Create the SCUSession object which maintains the current session of the SCU. Its "start" method accepts
 * the SCP's IP Address and Port and tries to establish a connection with the SCP.
 * 
 * Next step is to establish association .Some ways to create an Association Request: 
 * 1)Use Default Association class to Load the association for requested service. User can load the association 
 * by specifying the Services Type in loadAssociation method of Default association.
 * 2) Manually create object of AssociationRQ class and set all presentation contexts collection on it. 
 * More details provided in the API DOCS of AssociationRQ class.
 * 
 * After successful association is established the SCUSession stores the status of the Association with it.  
 * Create respective SCU object to send the service Request to the SCP. Currently the "sendMessage" method 
 * of the respective SCU would wait after sending the service DIMSE-RQ until a suitable DIMSE-RSP is received. 
 * This operation is part of Synchronous mode request handling.  
 * Once the DIMSE response is received by the SCU it stores it into its collection
 * which then can be retrieved.
 * 
 * After this, create a A-Release-RQ in order to request for association release and send it using the
 * SCUSession object. This again is a blocking call and the SCUSession waits until a A-Release-RP is received.
 * 
 * At the end of an operation calling "close" on SCUSession would disconnect the connection made with the 
 * SCP and release all the acquired resources.
 * Instead of closing the session after a service operation is complete,we can create another association
 * and send more requests. 
 * Also it is possible to create multiple service requests and send them one by one on the same Association.
 */
public class RTIonMachineVerification_TestSCU 
{
	public static void main(String[] args)
	{
		DicomConfig objDicomConfig = DicomConfig.createInstance();

		//enable logging,specify the path of the directory where log files are created.
		//User can specify any directory in place of 'c:\DCM_Logs'.
		//If no directory is defined by user to create logs then it is created in User Temp DIR.
		objDicomConfig.enableLogging(EnumLoggingLevel.INFO, "C:\\DCM_Logs");

		/*
		 * Creates instance of RTIonMachineVerification_TestSCU
		 */
		RTIonMachineVerification_TestSCU objTestRTIonMachineVerification_SCU = new RTIonMachineVerification_TestSCU();

		/*
		 * Performs operation of RT Ion Machine Verification Services 
		 */
		objTestRTIonMachineVerification_SCU.doNDelete();
	}

	/**
	 * This function performs the operation for N-Delete service of RT Ion Machine Verification.
	 * RT Ion Machine Verification operation involves following steps :-
	 * 1. Establish the connection with SCP
	 * 2. Establish the association with SCP
	 * 3. Initializes the SCU for corresponding N-Service and performs the operation using service request
	 * 4. Releases the association after successful processing of service request
	 * 5. Closes the connection with SCP. 
	 */
	public void doNDelete()
	{
		try
		{

			//Create SCUSession object
			SCUSession objSession = new SCUSession();
			
			/*
			 * Setting time out as 5000 milli second. It will wait 5000 mili seconds for read and write operation.
			 * If in the time specified (5000 ms) read or write operation is not performed then 
			 * session is time out.
			 */ 
			//objSession.setTimeOut(5000);
			
			//Start SCU Session by providing the IP address and Port of SCP.
			objSession.start("localhost", 9000);

			/*
			 * *************************************************************************
			 * This block of code initializes the DefaultAssociation information
			 * Using the DefaultAssociation it generates the Association Request and 
			 * creates association  with SCP.
			 * *************************************************************************
			 */

			// Initializes the service types and populates the Default Association
			EnumServiceType[] arrenumServiceType = new EnumServiceType[1];
			
			arrenumServiceType[0] = EnumServiceType.NDELETE_RT_ION_MACHINE_VERIFICATION;
			
			DefaultAssociation objDefaultAssociation = new DefaultAssociation("SDK");
			objDefaultAssociation.loadAssociation(arrenumServiceType);

			//Create Association RQ
			AssociateRQ objAssociateRQ = objDefaultAssociation.getAssociationRQ("SDK");

			//Send the Association Request
			if(objSession.sendAssociationMessage(objAssociateRQ))
			{	
				//When association is successfully established the "objSession.sendAssociationMessage()" method returns true.
				System.out.println("Association established");


				//Create  RT Machine Verification SCU object using the current SCU Session.
				RTMachineVerification_SCU objRTIonMachineVerification_SCU = new RTMachineVerification_SCU(objSession);
				
				
				NDeleteSCU objNDeleteSCU = new NDeleteSCU(objSession);


				//Initializing NDelete RQ 
				NDeleteRQ objNDeleteRQ = NDeleteRQ.getDefaultRQ(EnumSOPClassUIDs.RTIONMACHINEVERIFICATIONINFORMATIONOBJECTDEFINITION.getValue(), "1.2.840.10008.5.1.2.68.1");				
				NDeleteRSP objNDeleteRSP = null;
				System.out.println("RT Ion Machine Verification Request For N-Delete Initialized");

				//sending RQ to SCP
				if(objRTIonMachineVerification_SCU.sendMessage(objNDeleteRQ)) //sending request
				{
					System.out.println("RT Ion Machine Verification Instance Deletion Operation performed");
					
					/*
					 * Get the Response collection from the Print SCU.
					 */
					ISingleCollection<DicomMessage> objSingleCollection = objRTIonMachineVerification_SCU.getDIMSEResponse();
					System.out.println("Response Size collection :: " + objSingleCollection.size());

					//Get the Dicom Message from the Collection
					DicomMessage objDicomMessage = objSingleCollection.get(objSingleCollection.size()-1);

					//Printing Status of N-Create for Basic Film Session
					objNDeleteRSP = new NDeleteRSP(objDicomMessage);
					System.out.println("Status For N-Delete For RT Ion Machine Verification " + objNDeleteRSP.getStatus());

				}
				else
					System.out.println("RT Ion Machine Verification Instance Deletion Operation failed");

				//Create A-Release-RQ to release the association
				AReleaseRQorRP objAReleaseRQorRP = new AReleaseRQorRP(EnumPDUType.RELEASE_RQ);

				//Send the A-Release-RQ
				if(objSession.sendAssociationMessage(objAReleaseRQorRP))
				{

					objSession.close();
				}

				//In case an ABORT is received from SCP during the RT Ion Machine Verification operation
				if(objSession.getDIMSEAssociation() instanceof AAbort)
				{
					System.out.println("Abort arrives. Closing session.");
					objSession.close();
				}
			}
			else
			{
				System.out.println("Association cannot to extablished");
			}
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}
}
