/*******************************************************************************
 *  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.naction;

import cdac.medinfo.sdk.dcm30_04.baselibs.DataSet;
import cdac.medinfo.sdk.dcm30_04.baselibs.ImplicitDE;
import cdac.medinfo.sdk.dcm30_04.commoninterface.IDataElement;
import cdac.medinfo.sdk.dcm30_04.commoninterface.IDataSet;
import cdac.medinfo.sdk.dcm30_04.commoninterface.IDictionaryReader;
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.EnumActionTypeID;
import cdac.medinfo.sdk.dcm30_04.services.dicomnetcommons.EnumServiceType;
import cdac.medinfo.sdk.dcm30_04.services.naction.commons.NActionRQ;
import cdac.medinfo.sdk.dcm30_04.services.naction.commons.NActionRSP;
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;

/**
 * This class is implemented to test the N-Action Service of RT Conventional Machine Verification SCU.
 * The RT Conventional Machine Verification Service Class defines an application-level class-of-service that facilitates the independent 
 * verification of geometric and dosimetric settings on a radiation delivery system prior to delivery of a radiation treatment.
 * 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 Service Type in loadAssociation method of Default association. For e.g. here EnumServiceType.NACTION_RTConventionalMachineVerification
 * should be specified to load Association for N-Action Services. The association request for NACTION_RTConventionalMachineVerification 
 * is made according to  jars in the class path.
 * 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 RTMachineVerification_SCU object to send the N-Action Request to the respective SCP. Currently the "sendMessage" method 
 * of the RTMachineVerification_SCU would wait after sending the N-Action-RQ until a suitable DIMSE response is received. 
 * This operation is part of Synchronous mode request handling.  
 * Once the DIMSE response is received by the RTMachineVerification_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 N-Action operation is complete,we can create another association
 * and send more requests. 
 * Also it is possible to create multiple N-Action-RQs and send them one by one on the same Association.
 */

public class RTConventionalMachineVerification_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 AppEventLogging_SCU
		 */
		RTConventionalMachineVerification_TestSCU objTestRTCMV_SCU = new RTConventionalMachineVerification_TestSCU();

		/*
		 * Performs operation of RT Conventional Machine Verification Services 
		 */
		objTestRTCMV_SCU.doRTConventionalMachineVerification();
	}

	/**
	 * This function performs the operation for N-Action service of RT Conventional Machine Verification.
	 * RT Conventional 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 doRTConventionalMachineVerification()
	{
		try
		{
			/*
			 * *************************************************************************
			 * This block of code performs the connection process with SCP.
			 * It creates the SCUSession and connects with SCP using this session.
			 * *************************************************************************
			 */
			//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 loads the Default Association for N-Action  RT Conventional Machine Verification.
			EnumServiceType[] arrenumServiceType = new EnumServiceType[1];
			arrenumServiceType[0] = EnumServiceType.NACTION_RT_CONVENTIONAL_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");

				/*
				 * *************************************************************************
				 * This block of code creates the NCreate SCU to perform the process of 
				 * SOP Instance creation operation for RT Conventional Machine Verification.
				 * It initializes the NAction RQ and sends it to SCP.
				 * *************************************************************************
				 */
				//Create RT  Machine Verification SCU object using the current SCU Session.
				RTMachineVerification_SCU objRTMachineVerification_SCU = new RTMachineVerification_SCU(objSession);

				//Generating Dataset for RT Conventional Machine Verification
				IDataSet objRTConventionalMachineVerificationDataSet = getRTConventionalMachineVerificationIODForNAction();

				NActionRQ objNActionRQ = NActionRQ.getDefaultRQ(EnumSOPClassUIDs.DCM_RT_CONVENTIONAL_MACHINE_VERIFICATION.getValue(),"1.2.840.10008.5.1.2.69.1",EnumActionTypeID.RT_CONVENTIONAL_MACHINE_VERIFICATION,objRTConventionalMachineVerificationDataSet);
				if(objNActionRQ == null)
				{
					System.out.println("Necessary parameters missing while creating Request.");
				}
				else
				{
					System.out.println("N-Action Request for RT Conventional Machine Verification is created");
				}

				//sending RQ to SCP
				if(objRTMachineVerification_SCU.sendMessage(objNActionRQ))
				{//sending request
					System.out.println("RT Conventional Machine Verification Operation successfully initiated");
				}
				else
				{
					System.out.println("RT Conventional Machine Verification failed");
					//In case an ABORT is received from SCP during the RT Conventional Machine Verification operation
					if(objSession.getDIMSEAssociation() instanceof AAbort)
					{
						System.out.println("Abort arrives. Closing session.");
						objSession.close();
					}
				}

				//display status
				if(objRTMachineVerification_SCU.getDIMSEResponse().size() >0)
				{
					NActionRSP objActionRSP = new NActionRSP(objRTMachineVerification_SCU.getDIMSEResponse().elementAt(0)); 
					System.out.println("RT Conventional Machine Verification Status : " + objActionRSP.getStatus());
				}

				/*
				 * *************************************************************************
				 * This block of code releases the association and 
				 * removes the connection with SCP.  
				 * *************************************************************************
				 */
				//Create A-Release-RQ to release the association
				AReleaseRQorRP objAReleaseRQorRP = new AReleaseRQorRP(EnumPDUType.RELEASE_RQ);

				//Send the A-Release-RQ
				if(objSession.sendAssociationMessage(objAReleaseRQorRP))
				{
					System.out.println("Association is Released");
					//When successful A-Release-RP is received, close the Session.
					//Please note that instead of closing the session we can create 
					//another association and send more requests. Also it is possible
					//to create multiple N-Services-RQs and send them one by one.
					objSession.close();
				}
			}
			else
			{
				System.out.println("Association cannot be extablished");
			}
		}
		catch(Exception e)
		{
			e.printStackTrace();
		}
	}

	/**
	 * Populates the DataSet with modified values for RT Conventional Machine Verification .
	 * It populates the Dataset manually using some default values of Data elements for RT Conventional Machine Verification .
	 * This Dataset can be generated using some file also.
	 * @return objIDataSet instance of IDataSet.
	 */
	private IDataSet getRTConventionalMachineVerificationIODForNAction()
	{


		IDataSet objIDataSet = new DataSet();
		objIDataSet.getDictionaryReader();

		//setReferencedSOPInstanceUID("1.2.840.10008.5.1.2.69.1");
		objIDataSet.addDataElement(getDataElement(0x0008,0x1155,"1.2.840.10008.5.1.2.69.1",objIDataSet.getDictionaryReader()));
		
		return objIDataSet;
	}
	/**
	 * Creates DataElement for given Group and Element Number
	 */
	private IDataElement getDataElement(int GroupNo,int ElementNo,Object objVal,IDictionaryReader objDictionaryReader)
	{
		IDataElement objIDataElement = new ImplicitDE(GroupNo, ElementNo,objVal,objDictionaryReader);
		return objIDataElement;
	}

}
