Examples of com.linkedin.data.DataMap

com.linkedin.data.DataMap
An {@link DataMap} maps strings to Data objects.
The key of this map is always a string. When a key is being added or replaced, the map will verify that key is a string. If the key is not a string, the map will throw an {@link IllegalArgumentException}.
When an value is being added or replaced on the map, the map will verify that the value is a Data object. If the value is not a Data object, then the map will throw an {@link IllegalArgumentException}.
Cloning via the {@link #clone()} method will shallow copy the {@link DataMap}and will not deep copy contained complex objects. Copying via the {@link #copy()}method will deep copy the {@link DataMap}, which includes deep copying the contained complex objects. Keys are not deep copied because the keys are immutable strings.
Instrumentation if enabled is only enabled for the {@link DataMap} and notfor the underlying {@link CheckedMap}. Furthermore, if a {@link DataMap} is cloned,the clone will not have instrumentation enabled and the clone's instrumented data will be cleared.
Since {@link DataMap} extends {@link CheckedMap}, copying of the {@link DataMap} is lazy and may bedelayed until the {@link DataMap} is about to be modified. @author slim

    {
      adds.add(new StringArray());
      adds.get(i).add("add " + i);
    }
    List<Object> badInput = asList(true, 1, 2L, 3.0f, 4.0, ByteString.empty(), new StringMap(), new IntegerArray(), null);
    List<Object> badOutput = asList(true, 1, 2L, 3.0f, 4.0, ByteString.empty(), new DataMap());


    testArray(ArrayOfStringArrayTemplate.class, ArrayOfStringArrayTemplate.SCHEMA, input, adds);
    testArrayBadInput(ArrayOfStringArrayTemplate.class, ArrayOfStringArrayTemplate.SCHEMA, input, badInput, badOutput);
  }

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  /**
   * Initialize a new {@link PatchTree}.
   */
  public PatchTree()
  {
    _representation = new DataMap();
  }

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   */
  public void addOperation(PathSpec path, PatchOperation op)
  {
    List<String> segments = path.getPathComponents();


    DataMap map = _representation;
    for (int ii = 0; ii<segments.size() - 1; ++ii)
    {
      String segment = Escaper.escapePathSegment(segments.get(ii));
      Object o = map.get(segment);
      if (o == null)
      {
        DataMap childMap = new DataMap();
        map.put(segment, childMap);
        map = childMap;
      }
      else
      {

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                      instruction);
    }
    else
    {


      DataMap data = (DataMap) instruction.getData();
      DataMap op = (DataMap) instruction.getOperation();


      Object opWildcard = op.get(FilterConstants.WILDCARD);
      Object dataWildcard = data.get(FilterConstants.WILDCARD);


      if ((opWildcard != null && opWildcard.equals(FilterConstants.NEGATIVE))
          || (dataWildcard != null && dataWildcard.equals(FilterConstants.NEGATIVE)))
      {
        handleNegativeWildcard(data);
      }
      else
      {
          //process array range
          composeArrayRange(data, op, instrCtx);


          // process all fields
          for (Entry<String, Object> entry : op.entrySet())
          {
            String fieldName = entry.getKey();
            Object opMask = entry.getValue();
            Object dataMask = data.get(fieldName);

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  protected Status determineStatus(DataElement element)
  {
    Status status = null;
    element.pathAsList(_path);
    DataMap currentOpMap = _opMap;
    int i;
    for (i = 0; i < _path.size(); i++)
    {
      Object pathComponent = _path.get(i);
      if (i < _patchedPath.length)
      {
        if (_patchedPath[i].equals(pathComponent) == false)
        {
          status = Status.NONE;
          break;
        }
        status = Status.IS_DESCENDANT_MODIFIED;
        continue;
      }
      Object nextValue = currentOpMap.get(pathComponent);
      if (nextValue == null || nextValue.getClass() != DataMap.class)
      {
        Object setValue = currentOpMap.get(PatchConstants.SET_COMMAND);
        if (setValue != null && setValue.getClass() == DataMap.class &&
            ((DataMap) setValue).get(pathComponent) != null)
        {
          status = Status.IS_SET_VALUE;
          break;
        }
        status = Status.NONE;
        break;
      }
      status = Status.IS_DESCENDANT_MODIFIED;
      currentOpMap = (DataMap) nextValue;
    }
    if (i == _path.size())
    {
      if (i >= _patchedPath.length)
      {
        for (String keys : currentOpMap.keySet())
        {
          if (keys.startsWith(PatchConstants.COMMAND_PREFIX))
          {
            status = Status.IS_CHILD_MODIFIED;
            break;
          }
        }
      }
      if (status != Status.IS_CHILD_MODIFIED && i <= _patchedPath.length && ! currentOpMap.isEmpty())
      {
        status = Status.IS_DESCENDANT_MODIFIED;
      }
    }
    else if (status == null)

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   * @return a PatchTree as described above.
  *
  */
  public static PatchTree diff(DataMap original, DataMap modified)
  {
    DataMap result = diffMaps(original, modified);
    if (result == null)
    {
      return new PatchTree();
    }
    return new PatchTree(result);

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    _instrCtx = instrCtx;


    final Instruction instruction = _instrCtx.getCurrentInstruction();


    final Object dataValue = instruction.getData();
    final DataMap opNode = getOperation(instruction);


    filter(dataValue, opNode);
  }

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    return new PatchTree(result);
  }


  private static DataMap diffMaps(DataMap original, DataMap modified)
  {
    DataMap result = null;
    for (String key : original.keySet())
    {
      if (! modified.containsKey(key))
      {
        result = result==null ? new DataMap() : result;
        PatchOpFactory.REMOVE_FIELD_OP.store(result, key);
      }
      else
      {
        Object oValue = original.get(key);
        Object mValue = modified.get(key);
        if ((mValue.getClass() == DataMap.class) && (oValue.getClass() == DataMap.class))
        {
          DataMap subDiff = diffMaps((DataMap)oValue, (DataMap)mValue);
          if (subDiff != null)
          {
            result = result==null ? new DataMap() : result;
            result.put(Escaper.escapePathSegment(key), subDiff);
          }
        }
        else if (! oValue.equals(mValue))
        {
          result = result==null ? new DataMap() : result;
          PatchOpFactory.setFieldOp(mValue).store(result, key);
        }
      }
    }
    for (Map.Entry<String, Object> entry : modified.entrySet())
    {
      if (! original.containsKey(entry.getKey()))
      {
        result = result==null ? new DataMap() : result;
        PatchOpFactory.setFieldOp(entry.getValue()).store(result, entry.getKey());
      }
    }
    return result;
  }

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    public static final RecordDataSchema SCHEMA = (RecordDataSchema) DataTemplateUtil.parseSchema("{ \"type\" : \"record\", \"name\" : \"Foo\", \"fields\" : [ { \"name\" : \"bar\", \"type\" : \"string\" } ] }");
    public static final RecordDataSchema.Field FIELD_bar = SCHEMA.getField("bar");


    public FooRecord()
    {
      super(new DataMap(), SCHEMA);
    }

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  {
    for (String good : goodInputs)
    {
      NamedDataSchema dataSchema = (NamedDataSchema) TestUtil.dataSchemaFromString(good);


      DataMap mapFromSchema = Conversions.dataSchemaToDataMap(dataSchema);
      DataMap mapFromString = TestUtil.dataMapFromString(good);


      assertEquals(mapFromSchema, mapFromString);
    }
  }

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