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/*******************************************************************************
 * Copyright (c) 2012 Juergen Haug
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * CONTRIBUTORS:
 * 		Juergen Haug
 * 
 *******************************************************************************/

package org.eclipse.etrice.generator.config

import java.util.ArrayList
import java.util.List
import org.eclipse.emf.ecore.resource.ResourceSet
import org.eclipse.etrice.core.ConfigStandaloneSetup
import org.eclipse.etrice.core.genmodel.base.ILogger
import org.eclipse.etrice.core.genmodel.etricegen.ActorInstance
import org.eclipse.etrice.core.room.ActorClass
import org.eclipse.etrice.core.room.Attribute
import org.eclipse.etrice.core.room.ProtocolClass
import org.eclipse.etrice.core.room.SubSystemClass
import org.eclipse.etrice.generator.base.IDataConfiguration
import org.eclipse.etrice.generator.config.util.DataConfigurationHelper
import org.eclipse.etrice.core.config.BooleanLiteral
import org.eclipse.etrice.core.config.IntLiteral
import org.eclipse.etrice.core.config.RealLiteral
import org.eclipse.etrice.core.config.StringLiteral
import org.eclipse.etrice.core.config.LiteralArray
import org.eclipse.etrice.core.config.Literal
import org.eclipse.etrice.core.room.InterfaceItem
import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.etrice.core.config.ConfigModel
import com.google.inject.Inject
import org.eclipse.xtext.scoping.impl.ImportUriResolver
import org.eclipse.etrice.core.genmodel.etricegen.SubSystemInstance

class DataConfiguration implements IDataConfiguration {
	
	@Inject
	protected ILogger logger;
	
	@Inject
	protected ImportUriResolver uriResolver;

	override doSetup() {
		ConfigStandaloneSetup::doSetup()
	}
	
	override setResources(ResourceSet resource, ILogger logger) {
		DataConfigurationHelper::setConfigModels(resource, logger)
	}
	
	// static
	
	override getAttrClassConfigValue(ActorClass actor, List<Attribute> path) {
		actor.getAttrClassConfig(path)?.value?.toStringExpr
	}
	
	override getAttrClassConfigMaxValue(ActorClass actor, List<Attribute> path) {
		actor.getAttrClassConfig(path)?.min?.toStringExpr
	}
	
	override getAttrClassConfigMinValue(ActorClass actor, List<Attribute> path) {
		actor.getAttrClassConfig(path)?.max?.toStringExpr
	}
	
	def private getAttrClassConfig(ActorClass actor, List<Attribute> path){
		var id = '''/«actor.name»/«path.toStringPath»'''.toString
		DataConfigurationHelper::actorClassAttrMap.get(id)
	}
	
	override getAttrClassConfigValue(ProtocolClass pc, boolean regular, List<Attribute> path) {
		var id = '''/«pc.name»/«IF regular»regular«ELSE»conjugated«ENDIF»/«path.toStringPath»'''.toString
		DataConfigurationHelper::protocolClassAttrMap.get(id)?.value?.toStringExpr
	}
	
	def private toStringPath(List<Attribute> path){
		'''«FOR a : path SEPARATOR '/'»«a.name»«ENDFOR»'''.toString
	}
	
	override getAttrInstanceConfigValue(ActorInstance ai, List<Attribute> path) {
		var id = ai.subsyspath+"/"+path.toStringPath
		DataConfigurationHelper::actorInstanceAttrMap.get(id)?.value?.toStringExpr
	}
	
	override getAttrInstanceConfigValue(ActorInstance ai, InterfaceItem port, List<Attribute> path) {
		var id = ai.subsyspath+"/"+port.name+"/"+path.toStringPath
		DataConfigurationHelper::actorInstanceAttrMap.get(id)?.value?.toStringExpr
	}
	
	// dynamic
	
	override getPollingTimerUser(SubSystemClass subsystem) {
		 subsystem.config?.dynConfig?.polling
	}
	
	override getUserCode1(SubSystemClass subsystem) {
		var dynConfig = subsystem.config?.dynConfig
		return 
			if(dynConfig?.filePath != null)
				"import org.eclipse.etrice.runtime.java.config.ConfigSourceFile; // TODO JH make lang independent"
			else 
				dynConfig?.userCode1
	}
	
	override getUserCode2(SubSystemClass subsystem) {
		var dynConfig = subsystem.config?.dynConfig
		return 
			if(dynConfig?.filePath != null)
				'''new ConfigSourceFile("«dynConfig.filePath»")'''
			else 
				dynConfig?.userCode2
	}
	
	override getDynConfigReadAttributes(String actorInstance) {
		val result = new ArrayList<Attribute>
		var configs = DataConfigurationHelper::dynActorInstanceAttrMap.get(actorInstance)
		configs?.forEach(c | if(c.readOnly)result.add(c.attribute))
		
		return result
	}
	
	override getDynConfigWriteAttributes(String actorInstance) {
		val result = new ArrayList<Attribute>
		var configs = DataConfigurationHelper::dynActorInstanceAttrMap.get(actorInstance)
		configs?.forEach(c | if(!c.readOnly)result.add(c.attribute))
		
		return result
	}
	
	
	override hasVariableService(SubSystemClass subsystem) {
		subsystem.config?.dynConfig != null
	}
	
	def private toStringExpr(LiteralArray literal){
		'''«FOR l : literal.literals SEPARATOR ','»«l.toStringExpr»«ENDFOR»'''.toString
	}
	
	def private toStringExpr(Literal literal){
		switch(literal){
			BooleanLiteral: literal.isTrue.toString
			IntLiteral: literal.value.toString
			RealLiteral: literal.value.toString
			StringLiteral: literal.value.toString
		}
	}

	def private getConfig(SubSystemClass cc){
		DataConfigurationHelper::subSystemConfigMap.get(cc)
	}	

	override getDynConfigReadAttributes(ActorClass actor) {
		val result = new ArrayList<Attribute>
		var configs = DataConfigurationHelper::dynActorClassAttrMap.get(actor)
		configs?.forEach(c | if(c.readOnly)result.add(c.attribute))
		return result
	}
	
	override getDynConfigWriteAttributes(ActorClass actor) {
		val result = new ArrayList<Attribute>
		var configs = DataConfigurationHelper::dynActorClassAttrMap.get(actor)
		configs?.forEach(c | if(!c.readOnly)result.add(c.attribute))
		return result
	}
	
	override addReferencedModels(Resource resource, List<String> uriList) {
		val root = resource.contents.get(0)
		if (root instanceof ConfigModel) {
			for (imp : (root as ConfigModel).imports) {
				val importURI = uriResolver.resolve(imp)
				logger.logInfo("adding imported model "+importURI)
				uriList.add(importURI)
			}
		}
	}
	
	// TODO: this has to be replaced by a simple ai.path later
	def subsyspath(ActorInstance ai) {
		var parent = ai.eContainer
		while (! (parent instanceof SubSystemInstance))
			parent = parent.eContainer
		ai.path.replaceFirst("/[a-zA-Z_]+/", "/"+(parent as SubSystemInstance).subSystemClass.name+"/")
	}
	
}

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