1 package org.simantics.modeling.scl;
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3 import java.io.IOException;
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4 import java.util.Map;
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5 import java.util.concurrent.ExecutorService;
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6 import java.util.concurrent.LinkedBlockingQueue;
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7 import java.util.concurrent.Semaphore;
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8 import java.util.concurrent.ThreadFactory;
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9 import java.util.concurrent.ThreadPoolExecutor;
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10 import java.util.concurrent.TimeUnit;
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12 import org.simantics.databoard.Bindings;
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13 import org.simantics.databoard.binding.Binding;
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14 import org.simantics.databoard.binding.mutable.Variant;
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15 import org.simantics.databoard.serialization.RuntimeSerializerConstructionException;
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16 import org.simantics.modeling.SCLTypeUtils;
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17 import org.simantics.scl.compiler.commands.CommandSession;
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18 import org.simantics.scl.compiler.types.Type;
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19 import org.simantics.scl.runtime.SCLContext;
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20 import org.simantics.scl.runtime.function.Function;
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21 import org.simantics.scl.runtime.tuple.Tuple0;
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22 import org.simantics.simulator.variable.NodeManager;
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23 import org.simantics.simulator.variable.Realm;
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24 import org.slf4j.Logger;
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25 import org.slf4j.LoggerFactory;
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27 import gnu.trove.map.hash.THashMap;
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29 public class SCLRealm implements Realm {
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30 private static final Logger LOGGER = LoggerFactory.getLogger(SCLRealm.class);
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32 public static final String SCL = "scl";
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34 THashMap<String,Type> contextTypes = new THashMap<String,Type>();
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36 CommandSession connection;
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38 Thread executorThread;
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39 ExecutorService executor = new ThreadPoolExecutor(0, 1, 60, TimeUnit.SECONDS,
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40 new LinkedBlockingQueue<Runnable>(), new ThreadFactory() {
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42 public Thread newThread(Runnable r) {
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43 executorThread = new Thread(r);
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44 return executorThread;
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48 Semaphore beginSyncExec = new Semaphore(0);
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49 Semaphore endSyncExec = new Semaphore(0);
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51 SCLNodeManager nodeManager;
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53 Runnable scheduleSyncExec = new Runnable() {
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56 beginSyncExec.release();
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58 endSyncExec.acquire();
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59 } catch (InterruptedException e) {
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64 SCLRealm(CommandSession connection, String id) {
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65 this.connection = connection;
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67 this.nodeManager = new SCLNodeManager(this);
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70 public String getId() {
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74 public CommandSession getConnection() {
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78 public Thread getThread() {
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79 return executorThread;
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82 @SuppressWarnings({ "rawtypes", "unchecked" })
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83 public Object syncExec(Function fun) throws InterruptedException {
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84 executor.execute(scheduleSyncExec);
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86 SCLContext context = SCLContext.getCurrent();
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87 CommandSession oldConnection = (CommandSession)context.put(SCL, connection);
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90 beginSyncExec.acquire();
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91 Thread oldThread = executorThread;
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92 executorThread = Thread.currentThread();
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94 return fun.apply(Tuple0.INSTANCE);
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96 executorThread = oldThread;
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97 endSyncExec.release();
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100 context.put(SCL, oldConnection);
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104 @SuppressWarnings("rawtypes")
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105 public void asyncExec(final Function fun) {
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106 executor.execute(new Runnable() {
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107 @SuppressWarnings("unchecked")
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109 public void run() {
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110 SCLContext context = SCLContext.getCurrent();
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111 context.put(SCL, connection);
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112 fun.apply(Tuple0.INSTANCE);
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118 public void syncExec(Runnable runnable) throws InterruptedException {
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120 if(executorThread == Thread.currentThread()) {
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123 } catch (Throwable t) {
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124 LOGGER.error("Runnable failed in syncExec.", t);
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130 executor.execute(scheduleSyncExec);
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132 beginSyncExec.acquire();
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133 Thread oldThread = executorThread;
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134 executorThread = Thread.currentThread();
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137 } catch (Throwable t) {
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138 LOGGER.error("Runnable failed in syncExec.", t);
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140 executorThread = oldThread;
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141 endSyncExec.release();
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146 public void asyncExec(Runnable runnable) {
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148 if(executorThread == Thread.currentThread()) {
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151 } catch (Throwable t) {
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152 LOGGER.error("Runnable failed in asyncExec.", t);
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158 executor.execute(runnable);
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161 public void refreshVariables() {
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162 nodeManager.refreshVariables();
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165 public void refreshVariablesSync() {
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166 nodeManager.refreshVariablesSync();
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169 public void close() {
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170 SCLSessionManager.CONNECTIONS.remove(id);
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171 executor.shutdown();
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173 executor.awaitTermination(500L, TimeUnit.MILLISECONDS);
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174 } catch (InterruptedException e) {
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176 //connection.close();
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179 public NodeManager<String> getNodeManager() {
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180 return nodeManager;
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183 private SCLState getState() {
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184 SCLState state = new SCLState();
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185 for(String key : connection.getVariables()) {
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186 Object value = connection.getVariableValue(key);
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188 Binding b = Bindings.getBinding(value.getClass());
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189 state.values.put(key, new Variant(b, value));
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190 } catch (Exception e) {
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196 public void applyState(byte[] blob) {
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198 SCLState state = (SCLState)SCLState.BINDING.serializer().deserialize(blob);
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199 for(Map.Entry<String,Variant> entry : state.values.entrySet()) {
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200 String key = entry.getKey();
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201 Variant value = entry.getValue();
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202 Type type = SCLTypeUtils.getType(value.type());
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203 if (type.getClassId() != Type.VAR_ID) {
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204 // do not add the property if type cannot be inferred
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205 connection.setVariable(key, type, value.getValue());
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208 } catch (RuntimeSerializerConstructionException e) {
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209 } catch (IOException e) {
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213 public byte[] serialize() {
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214 SCLState state = getState();
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216 return SCLState.BINDING.serializer().serialize(state);
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217 } catch (RuntimeSerializerConstructionException e) {
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219 } catch (IOException e) {
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