bundles/org.simantics.db.common/src/org/simantics/db/common/CommandMetadata.java

   1 package org.simantics.db.common;
   2
   3 import java.io.IOException;
   4 import java.util.ArrayList;
   5 import java.util.List;
   6
   7 import org.simantics.databoard.Bindings;
   8 import org.simantics.databoard.binding.Binding;
   9 import org.simantics.databoard.serialization.SerializationException;
  10 import org.simantics.databoard.serialization.Serializer;
  11 import org.simantics.db.Metadata;
  12 import org.simantics.db.Session;
  13 import org.simantics.db.WriteGraph;
  14 import org.simantics.db.exception.DatabaseException;
  15
  16 public class CommandMetadata implements Metadata {
  17
  18     public static final boolean DEBUG = false;
  19     public static final String RESET_COMMAND = "// RESET";
  20
  21     private static final Binding BINDING =
  22             Bindings.getBindingUnchecked(CommandMetadata.class);
  23     private static final Serializer SERIALIZER =
  24             Bindings.getSerializerUnchecked(BINDING);
  25
  26     public List<Command> commands;
  27
  28     public static class Command {
  29         public long modelId;
  30         public String command;
  31
  32         public Command() {
  33         }
  34
  35         public Command(long modelId, String command) {
  36             super();
  37             this.modelId = modelId;
  38             this.command = command;
  39         }
  40     }
  41
  42     public CommandMetadata() {
  43     }
  44
  45     @Override
  46     public byte[] serialise(Session session) {
  47         try {
  48             return SERIALIZER.serialize(this);
  49         } catch (IOException e) {
  50             e.printStackTrace();
  51             throw new RuntimeException(e);
  52         }
  53     }
  54
  55     public static CommandMetadata deserialise(Session session, byte[] input) {
  56         if(input == null) {
  57             CommandMetadata metadata = new CommandMetadata();
  58             metadata.commands = new ArrayList<Command>();
  59             return metadata;
  60         }
  61         try {
  62             return (CommandMetadata)SERIALIZER.deserialize(input);
  63         } catch (SerializationException e) {
  64             e.printStackTrace();
  65         } catch (IOException e) {
  66             e.printStackTrace();
  67         }
  68         return null;
  69     }
  70
  71     public CommandMetadata add(Command command) {
  72         commands.add(command);
  73         return this;
  74     }
  75
  76     public List<Command> getCommands() {
  77         return commands;
  78     }
  79
  80     public static void add(WriteGraph graph, long modelId, String command) throws DatabaseException {
  81         if(DEBUG) {
  82             System.out.println("-------------------------------------------------------------");
  83             System.out.println(command);
  84         }
  85         graph.addMetadata(graph.getMetadata(CommandMetadata.class).add(
  86                 new Command(modelId, command)));
  87     }
  88
  89     public static void addReset(WriteGraph graph, long modelId) throws DatabaseException {
  90         graph.addMetadata(graph.getMetadata(CommandMetadata.class).add(
  91                 new Command(modelId, RESET_COMMAND)));
  92     }
  93 }