1 package org.simantics.document.server.handler;
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3 import org.simantics.Simantics;
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4 import org.simantics.db.WriteGraph;
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5 import org.simantics.db.common.request.WriteResultRequest;
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6 import org.simantics.db.exception.DatabaseException;
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7 import org.simantics.document.server.io.CommandContext;
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8 import org.simantics.document.server.io.CommandResult;
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9 import org.simantics.document.server.serverResponse.Error;
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10 import org.simantics.document.server.serverResponse.IDelayedResponse;
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12 public abstract class WriteEventHandler extends AbstractEventHandler {
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14 protected abstract CommandResult handle(WriteGraph graph, CommandContext parameters) throws DatabaseException;
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16 public CommandResult handle(final CommandContext parameters) {
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18 CommandResult response = Simantics.getSession().syncRequest(new WriteResultRequest<CommandResult>() {
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20 public CommandResult perform(WriteGraph graph) throws DatabaseException {
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21 graph.markUndoPoint();
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22 return handle(graph, parameters);
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26 if(response instanceof IDelayedResponse && !(((IDelayedResponse)response).hasRun())) {
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28 synchronized(response) {
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29 response.wait(200000);
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31 } catch (InterruptedException e) {
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32 e.printStackTrace();
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37 } catch (DatabaseException e) {
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38 e.printStackTrace();
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39 return new Error(e.getMessage()); // Return some error
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