@Override
public void traverse(FieldMapperListener fieldMapperListener) {
contentMapper.traverse(fieldMapperListener);
dateMapper.traverse(fieldMapperListener);
titleMapper.traverse(fieldMapperListener);
authorMapper.traverse(fieldMapperListener);
keywordsMapper.traverse(fieldMapperListener);
}
@Override
public void close() {
contentMapper.close();
dateMapper.close();
titleMapper.close();
authorMapper.close();
keywordsMapper.close();
}
@Override
public void parse(ParseContext context) throws IOException {
byte[] content = null;
String contentType = null;
String name = null;
XContentParser parser = context.parser();
XContentParser.Token token = parser.currentToken();
if (token == XContentParser.Token.VALUE_STRING) {
content = parser.binaryValue();
} else {
String currentFieldName = null;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.VALUE_STRING) {
if ("content".equals(currentFieldName)) {
content = parser.binaryValue();
} else if ("_content_type".equals(currentFieldName)) {
contentType = parser.text();
} else if ("_name".equals(currentFieldName)) {
name = parser.text();
}
}
}
}
Metadata metadata = new Metadata();
if (contentType != null) {
metadata.add(Metadata.CONTENT_TYPE, contentType);
}
if (name != null) {
metadata.add(Metadata.RESOURCE_NAME_KEY, name);
}
String parsedContent;
try {
parsedContent = tika().parseToString(new FastByteArrayInputStream(content), metadata);
} catch (TikaException e) {
throw new MapperParsingException("Failed to extract text for [" + name + "]", e);
}
context.externalValue(parsedContent);
contentMapper.parse(context);
context.externalValue(metadata.get(Metadata.DATE));
dateMapper.parse(context);
context.externalValue(metadata.get(Metadata.TITLE));
titleMapper.parse(context);
context.externalValue(metadata.get(Metadata.AUTHOR));
authorMapper.parse(context);
context.externalValue(metadata.get(Metadata.KEYWORDS));
keywordsMapper.parse(context);
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(name);
builder.field("type", CONTENT_TYPE);
builder.field("path", pathType.name().toLowerCase());
builder.startObject("fields");
contentMapper.toXContent(builder, params);
authorMapper.toXContent(builder, params);
titleMapper.toXContent(builder, params);
dateMapper.toXContent(builder, params);
keywordsMapper.toXContent(builder, params);
builder.endObject();
builder.endObject();
return builder;
}
