コード例 #1
0
  private void serializeObject(final ParseContext context, String currentFieldName)
      throws IOException {
    if (currentFieldName == null) {
      throw new MapperParsingException(
          "object mapping ["
              + name
              + "] trying to serialize an object with no field associated with it, current value ["
              + context.parser().textOrNull()
              + "]");
    }
    context.path().add(currentFieldName);

    Mapper objectMapper = mappers.get(currentFieldName);
    if (objectMapper != null) {
      objectMapper.parse(context);
    } else {
      Dynamic dynamic = this.dynamic;
      if (dynamic == null) {
        dynamic = context.root().dynamic();
      }
      if (dynamic == Dynamic.STRICT) {
        throw new StrictDynamicMappingException(currentFieldName);
      } else if (dynamic == Dynamic.TRUE) {
        // we sync here just so we won't add it twice. Its not the end of the world
        // to sync here since next operations will get it before
        boolean newMapper = false;
        synchronized (mutex) {
          objectMapper = mappers.get(currentFieldName);
          if (objectMapper == null) {
            newMapper = true;
            Mapper.Builder builder =
                context.root().findTemplateBuilder(context, currentFieldName, "object");
            if (builder == null) {
              builder =
                  MapperBuilders.object(currentFieldName)
                      .enabled(true)
                      .dynamic(dynamic)
                      .pathType(pathType);
            }
            // remove the current field name from path, since the object builder adds it as well...
            context.path().remove();
            BuilderContext builderContext =
                new BuilderContext(context.indexSettings(), context.path());
            objectMapper = builder.build(builderContext);
            putMapper(objectMapper);
            // now re add it
            context.path().add(currentFieldName);
            context.addedMapper();
          }
        }
        // traverse and parse outside of the mutex
        if (newMapper) {
          // we need to traverse in case we have a dynamic template and need to add field mappers
          // introduced by it
          objectMapper.traverse(
              new FieldMapperListener() {
                @Override
                public void fieldMapper(FieldMapper fieldMapper) {
                  context.docMapper().addFieldMapper(fieldMapper);
                }
              });
          objectMapper.traverse(
              new ObjectMapperListener() {
                @Override
                public void objectMapper(ObjectMapper objectMapper) {
                  context.docMapper().addObjectMapper(objectMapper);
                }
              });
        }
        // now, parse it
        objectMapper.parse(context);
      } else {
        // not dynamic, read everything up to end object
        context.parser().skipChildren();
      }
    }

    context.path().remove();
  }
コード例 #2
0
  private void serializeValue(
      final ParseContext context, String currentFieldName, XContentParser.Token token)
      throws IOException {
    if (currentFieldName == null) {
      throw new MapperParsingException(
          "object mapping ["
              + name
              + "] trying to serialize a value with no field associated with it, current value ["
              + context.parser().textOrNull()
              + "]");
    }
    Mapper mapper = mappers.get(currentFieldName);
    if (mapper != null) {
      mapper.parse(context);
      return;
    }
    Dynamic dynamic = this.dynamic;
    if (dynamic == null) {
      dynamic = context.root().dynamic();
    }
    if (dynamic == Dynamic.STRICT) {
      throw new StrictDynamicMappingException(currentFieldName);
    }
    if (dynamic == Dynamic.FALSE) {
      return;
    }
    // we sync here since we don't want to add this field twice to the document mapper
    // its not the end of the world, since we add it to the mappers once we create it
    // so next time we won't even get here for this field
    boolean newMapper = false;
    synchronized (mutex) {
      mapper = mappers.get(currentFieldName);
      if (mapper == null) {
        newMapper = true;
        BuilderContext builderContext = new BuilderContext(context.indexSettings(), context.path());
        if (token == XContentParser.Token.VALUE_STRING) {
          boolean resolved = false;

          // do a quick test to see if its fits a dynamic template, if so, use it.
          // we need to do it here so we can handle things like attachment templates, where calling
          // text (to see if its a date) causes the binary value to be cleared
          if (!resolved) {
            Mapper.Builder builder =
                context.root().findTemplateBuilder(context, currentFieldName, "string", null);
            if (builder != null) {
              mapper = builder.build(builderContext);
              resolved = true;
            }
          }

          if (!resolved && context.parser().textLength() == 0) {
            // empty string with no mapping, treat it like null value
            return;
          }

          if (!resolved && context.root().dateDetection()) {
            String text = context.parser().text();
            // a safe check since "1" gets parsed as well
            if (text.contains(":") || text.contains("-") || text.contains("/")) {
              for (FormatDateTimeFormatter dateTimeFormatter :
                  context.root().dynamicDateTimeFormatters()) {
                try {
                  dateTimeFormatter.parser().parseMillis(text);
                  Mapper.Builder builder =
                      context.root().findTemplateBuilder(context, currentFieldName, "date");
                  if (builder == null) {
                    builder = dateField(currentFieldName).dateTimeFormatter(dateTimeFormatter);
                  }
                  mapper = builder.build(builderContext);
                  resolved = true;
                  break;
                } catch (Exception e) {
                  // failure to parse this, continue
                }
              }
            }
          }
          if (!resolved && context.root().numericDetection()) {
            String text = context.parser().text();
            try {
              Long.parseLong(text);
              Mapper.Builder builder =
                  context.root().findTemplateBuilder(context, currentFieldName, "long");
              if (builder == null) {
                builder = longField(currentFieldName);
              }
              mapper = builder.build(builderContext);
              resolved = true;
            } catch (Exception e) {
              // not a long number
            }
            if (!resolved) {
              try {
                Double.parseDouble(text);
                Mapper.Builder builder =
                    context.root().findTemplateBuilder(context, currentFieldName, "double");
                if (builder == null) {
                  builder = doubleField(currentFieldName);
                }
                mapper = builder.build(builderContext);
                resolved = true;
              } catch (Exception e) {
                // not a long number
              }
            }
          }
          // DON'T do automatic ip detection logic, since it messes up with docs that have hosts and
          // ips
          // check if its an ip
          //                if (!resolved && text.indexOf('.') != -1) {
          //                    try {
          //                        IpFieldMapper.ipToLong(text);
          //                        XContentMapper.Builder builder =
          // context.root().findTemplateBuilder(context, currentFieldName, "ip");
          //                        if (builder == null) {
          //                            builder = ipField(currentFieldName);
          //                        }
          //                        mapper = builder.build(builderContext);
          //                        resolved = true;
          //                    } catch (Exception e) {
          //                        // failure to parse, not ip...
          //                    }
          //                }
          if (!resolved) {
            Mapper.Builder builder =
                context.root().findTemplateBuilder(context, currentFieldName, "string");
            if (builder == null) {
              builder = stringField(currentFieldName);
            }
            mapper = builder.build(builderContext);
          }
        } else if (token == XContentParser.Token.VALUE_NUMBER) {
          XContentParser.NumberType numberType = context.parser().numberType();
          if (numberType == XContentParser.NumberType.INT) {
            if (context.parser().estimatedNumberType()) {
              Mapper.Builder builder =
                  context.root().findTemplateBuilder(context, currentFieldName, "long");
              if (builder == null) {
                builder = longField(currentFieldName);
              }
              mapper = builder.build(builderContext);
            } else {
              Mapper.Builder builder =
                  context.root().findTemplateBuilder(context, currentFieldName, "integer");
              if (builder == null) {
                builder = integerField(currentFieldName);
              }
              mapper = builder.build(builderContext);
            }
          } else if (numberType == XContentParser.NumberType.LONG) {
            Mapper.Builder builder =
                context.root().findTemplateBuilder(context, currentFieldName, "long");
            if (builder == null) {
              builder = longField(currentFieldName);
            }
            mapper = builder.build(builderContext);
          } else if (numberType == XContentParser.NumberType.FLOAT) {
            if (context.parser().estimatedNumberType()) {
              Mapper.Builder builder =
                  context.root().findTemplateBuilder(context, currentFieldName, "double");
              if (builder == null) {
                builder = doubleField(currentFieldName);
              }
              mapper = builder.build(builderContext);
            } else {
              Mapper.Builder builder =
                  context.root().findTemplateBuilder(context, currentFieldName, "float");
              if (builder == null) {
                builder = floatField(currentFieldName);
              }
              mapper = builder.build(builderContext);
            }
          } else if (numberType == XContentParser.NumberType.DOUBLE) {
            Mapper.Builder builder =
                context.root().findTemplateBuilder(context, currentFieldName, "double");
            if (builder == null) {
              builder = doubleField(currentFieldName);
            }
            mapper = builder.build(builderContext);
          }
        } else if (token == XContentParser.Token.VALUE_BOOLEAN) {
          Mapper.Builder builder =
              context.root().findTemplateBuilder(context, currentFieldName, "boolean");
          if (builder == null) {
            builder = booleanField(currentFieldName);
          }
          mapper = builder.build(builderContext);
        } else {
          Mapper.Builder builder =
              context.root().findTemplateBuilder(context, currentFieldName, null);
          if (builder != null) {
            mapper = builder.build(builderContext);
          } else {
            // TODO how do we identify dynamically that its a binary value?
            throw new ElasticSearchIllegalStateException(
                "Can't handle serializing a dynamic type with content token ["
                    + token
                    + "] and field name ["
                    + currentFieldName
                    + "]");
          }
        }
        putMapper(mapper);
        context.addedMapper();
      }
    }
    if (newMapper) {
      mapper.traverse(
          new FieldMapperListener() {
            @Override
            public void fieldMapper(FieldMapper fieldMapper) {
              context.docMapper().addFieldMapper(fieldMapper);
            }
          });
    }
    mapper.parse(context);
  }
コード例 #3
0
  public void parse(ParseContext context) throws IOException {
    if (!enabled) {
      context.parser().skipChildren();
      return;
    }
    XContentParser parser = context.parser();

    String currentFieldName = parser.currentName();
    XContentParser.Token token = parser.currentToken();
    if (token == XContentParser.Token.VALUE_NULL) {
      // the object is null ("obj1" : null), simply bail
      return;
    }

    Document restoreDoc = null;
    if (nested.isNested()) {
      Document nestedDoc = new Document();
      // pre add the uid field if possible (id was already provided)
      Fieldable uidField = context.doc().getFieldable(UidFieldMapper.NAME);
      if (uidField != null) {
        // we don't need to add it as a full uid field in nested docs, since we don't need
        // versioning
        // we also rely on this for UidField#loadVersion

        // this is a deeply nested field
        if (uidField.stringValue() != null) {
          nestedDoc.add(
              new Field(
                  UidFieldMapper.NAME,
                  uidField.stringValue(),
                  Field.Store.NO,
                  Field.Index.NOT_ANALYZED));
        } else {
          nestedDoc.add(
              new Field(
                  UidFieldMapper.NAME,
                  ((UidField) uidField).uid(),
                  Field.Store.NO,
                  Field.Index.NOT_ANALYZED));
        }
      }
      // the type of the nested doc starts with __, so we can identify that its a nested one in
      // filters
      // note, we don't prefix it with the type of the doc since it allows us to execute a nested
      // query
      // across types (for example, with similar nested objects)
      nestedDoc.add(
          new Field(
              TypeFieldMapper.NAME, nestedTypePath, Field.Store.NO, Field.Index.NOT_ANALYZED));
      restoreDoc = context.switchDoc(nestedDoc);
      context.addDoc(nestedDoc);
    }

    ContentPath.Type origPathType = context.path().pathType();
    context.path().pathType(pathType);

    // if we are at the end of the previous object, advance
    if (token == XContentParser.Token.END_OBJECT) {
      token = parser.nextToken();
    }
    if (token == XContentParser.Token.START_OBJECT) {
      // if we are just starting an OBJECT, advance, this is the object we are parsing, we need the
      // name first
      token = parser.nextToken();
    }

    while (token != XContentParser.Token.END_OBJECT) {
      if (token == XContentParser.Token.START_OBJECT) {
        serializeObject(context, currentFieldName);
      } else if (token == XContentParser.Token.START_ARRAY) {
        serializeArray(context, currentFieldName);
      } else if (token == XContentParser.Token.FIELD_NAME) {
        currentFieldName = parser.currentName();
      } else if (token == XContentParser.Token.VALUE_NULL) {
        serializeNullValue(context, currentFieldName);
      } else if (token == null) {
        throw new MapperParsingException(
            "object mapping for ["
                + name
                + "] tried to parse as object, but got EOF, has a concrete value been provided to it?");
      } else if (token.isValue()) {
        serializeValue(context, currentFieldName, token);
      }
      token = parser.nextToken();
    }
    // restore the enable path flag
    context.path().pathType(origPathType);
    if (nested.isNested()) {
      Document nestedDoc = context.switchDoc(restoreDoc);
      if (nested.isIncludeInParent()) {
        for (Fieldable field : nestedDoc.getFields()) {
          if (field.name().equals(UidFieldMapper.NAME)
              || field.name().equals(TypeFieldMapper.NAME)) {
            continue;
          } else {
            context.doc().add(field);
          }
        }
      }
      if (nested.isIncludeInRoot()) {
        // don't add it twice, if its included in parent, and we are handling the master doc...
        if (!(nested.isIncludeInParent() && context.doc() == context.rootDoc())) {
          for (Fieldable field : nestedDoc.getFields()) {
            if (field.name().equals(UidFieldMapper.NAME)
                || field.name().equals(TypeFieldMapper.NAME)) {
              continue;
            } else {
              context.rootDoc().add(field);
            }
          }
        }
      }
    }
  }