| 1 | package de.uka.ipd.sdq.simucomframework; |
| 2 | |
| 3 | import java.util.HashMap; |
| 4 | |
| 5 | import de.uka.ipd.sdq.scheduler.IPassiveResource; |
| 6 | import de.uka.ipd.sdq.simucomframework.exceptions.ResourceContainerNotFound; |
| 7 | import de.uka.ipd.sdq.simucomframework.model.SimuComModel; |
| 8 | import de.uka.ipd.sdq.simucomframework.resources.AbstractSimulatedResourceContainer; |
| 9 | import de.uka.ipd.sdq.simucomframework.resources.SimulatedLinkingResourceContainer; |
| 10 | import de.uka.ipd.sdq.simucomframework.resources.SimulatedResourceContainer; |
| 11 | import de.uka.ipd.sdq.simucomframework.variables.StackContext; |
| 12 | |
| 13 | /** |
| 14 | * Context of each simulation thread. This context inherits a stack context and |
| 15 | * enriches it with information on the simulated execution environment. |
| 16 | * |
| 17 | * @author Steffen Becker |
| 18 | * |
| 19 | */ |
| 20 | public abstract class Context extends StackContext { |
| 21 | |
| 22 | /** |
| 23 | * Central registry which contains all simulated resources |
| 24 | */ |
| 25 | private ResourceRegistry registry = null; |
| 26 | |
| 27 | /** |
| 28 | * AssemblyContextID -> ResourceContainer Object (Deployment Link) |
| 29 | */ |
| 30 | private HashMap<String, AbstractSimulatedResourceContainer> assemblyLinkHash = new HashMap<String, AbstractSimulatedResourceContainer>(); |
| 31 | |
| 32 | /** |
| 33 | * AssemblyContextID -> PassiveRessource |
| 34 | */ |
| 35 | private HashMap<String, IPassiveResource> assemblyPassiveResourceHash = new HashMap<String, IPassiveResource>(); |
| 36 | |
| 37 | /** |
| 38 | * The thread to which this context belongs |
| 39 | */ |
| 40 | private SimuComSimProcess myThread = null; |
| 41 | |
| 42 | /** |
| 43 | * Simulation model |
| 44 | */ |
| 45 | private SimuComModel myModel = null; |
| 46 | |
| 47 | /** |
| 48 | * Initialise a new context for the given simulation model |
| 49 | * |
| 50 | * @param myModel |
| 51 | * The simulation model used in this context |
| 52 | */ |
| 53 | public Context(SimuComModel myModel) { |
| 54 | if (myModel != null) { // This is for the prototype mapping, where we |
| 55 | // don't need resources |
| 56 | this.registry = myModel.getResourceRegistry(); |
| 57 | this.myModel = myModel; |
| 58 | initialiseAssemblyContextLookup(); |
| 59 | } else { |
| 60 | stack.createAndPushNewStackFrame(); |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | public long getSessionId() { |
| 65 | return myThread.getCurrentSessionId(); |
| 66 | } |
| 67 | |
| 68 | /** |
| 69 | * Lookup method to find the resource container in which the given |
| 70 | * components assembly context is deployed |
| 71 | * |
| 72 | * @param assemblyContextID |
| 73 | * The ID of the assembly context for which its deployment is |
| 74 | * queried |
| 75 | * @return The resource container in which the given assembly context is |
| 76 | * deployed |
| 77 | */ |
| 78 | public AbstractSimulatedResourceContainer findResource( |
| 79 | String assemblyContextID) { |
| 80 | AbstractSimulatedResourceContainer container = assemblyLinkHash |
| 81 | .get(assemblyContextID); |
| 82 | if (container == null) |
| 83 | throw new ResourceContainerNotFound( |
| 84 | "Resource container for assembly context " |
| 85 | + assemblyContextID |
| 86 | + " not found. Check your allocation model. " |
| 87 | + "Note that a SubSystem must only be used once in one System, using one several times may cause this error. "); |
| 88 | return container; |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * Lookup method to find the linking resource container that belongs to the |
| 93 | * given container id. |
| 94 | * |
| 95 | * @param linkingResourceContainerID |
| 96 | * the container id |
| 97 | * @return the linking resource container |
| 98 | */ |
| 99 | public SimulatedLinkingResourceContainer findLinkingResource( |
| 100 | String linkingResourceContainerID) { |
| 101 | AbstractSimulatedResourceContainer container = registry |
| 102 | .getResourceContainer(linkingResourceContainerID); |
| 103 | if ((container == null) |
| 104 | || !(container instanceof SimulatedLinkingResourceContainer)) { |
| 105 | throw new ResourceContainerNotFound( |
| 106 | "Linking resource container for container ID " |
| 107 | + linkingResourceContainerID + " not found."); |
| 108 | } |
| 109 | return (SimulatedLinkingResourceContainer) container; |
| 110 | } |
| 111 | |
| 112 | /** |
| 113 | * Create a deployment relationship between the given assembly context and |
| 114 | * the given resource container |
| 115 | * |
| 116 | * @param assemblyContextID |
| 117 | * ID of the assembly context to allocate |
| 118 | * @param resourceContainerID |
| 119 | * ID of the resource container on which the assembly context is |
| 120 | * allocated |
| 121 | */ |
| 122 | protected void linkAssemblyContextAndResourceContainer( |
| 123 | String assemblyContextID, String resourceContainerID) { |
| 124 | assert registry.containsResourceContainer(resourceContainerID); |
| 125 | AbstractSimulatedResourceContainer container = registry |
| 126 | .getResourceContainer(resourceContainerID); |
| 127 | assemblyLinkHash.put(assemblyContextID, container); |
| 128 | } |
| 129 | |
| 130 | public IPassiveResource getPassiveRessourceInContext( |
| 131 | String assemblyContextID, String passiveResourceName, |
| 132 | String passiveResourceID, |
| 133 | AbstractSimulatedResourceContainer resourceContainer, int capacity) { |
| 134 | IPassiveResource pr = assemblyPassiveResourceHash.get(assemblyContextID |
| 135 | + passiveResourceID); |
| 136 | |
| 137 | if (pr == null) { |
| 138 | pr = ((SimulatedResourceContainer) resourceContainer) |
| 139 | .createPassiveResource(passiveResourceName, |
| 140 | passiveResourceID, assemblyContextID, |
| 141 | passiveResourceID + ":" + assemblyContextID, |
| 142 | capacity); |
| 143 | assemblyPassiveResourceHash.put(assemblyContextID |
| 144 | + passiveResourceID, pr); |
| 145 | } |
| 146 | |
| 147 | return pr; |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Template method to be filled in by the generator. Calles |
| 152 | * linkAssemblyContextAndResourceContainer to create the deployment |
| 153 | * specified in the allocation model |
| 154 | */ |
| 155 | protected abstract void initialiseAssemblyContextLookup(); |
| 156 | |
| 157 | public SimuComSimProcess getThread() { |
| 158 | return myThread; |
| 159 | } |
| 160 | |
| 161 | public void setSimProcess(SimuComSimProcess process) { |
| 162 | this.myThread = process; |
| 163 | } |
| 164 | |
| 165 | public SimuComModel getModel() { |
| 166 | return myModel; |
| 167 | } |
| 168 | |
| 169 | } |