Bug in java-API BulkRequest in Elasticsearch: "The number of passed object must be even, but it was [1]"
I am trying to use a map with Bulk Insert Api from ElasticSearch Java Api
public void bulkInsert(List<Map<String,String>> listOfObjects ){
BulkRequestBuilder bulkRequest = client.prepareBulk();
Iterator<Map<String,String>> itr = listOfObjects.iterator();
if (itr.hasNext()){
Map<String,String> document = itr.next();
bulkRequest.add(client.prepareIndex(index, type)
.setSource(document));
}
BulkResponse bulkResponse = bulkRequest.execute().actionGet();
if (bulkResponse.hasFailures()) {
System.out.println(bulkResponse.buildFailureMessage());
}
}
And I am calling this with
Map<String,String> jsonMap = new HashMap<String,String>();
jsonMap.put("name", fullName.toString());
jsonMap.put("file", file);
List<Map<String,String>> listOfObjects = new ArrayList<Map<String,String>>();
listOfObjects.add(jsonMap);
indexService.bulkInsert(listOfObjects);
I am getting the following exception The number of the passed object should be even, but it was [1]
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1 answer
Ok I got the fix: Use Map<String, Object>
insteadMap <String,String>
Map<String,Object> jsonMap = new HashMap<String,Object>();
jsonMap.put("name", fullName.toString());
jsonMap.put("file", file);
List<Map<String,Object>> listOfObjects = new ArrayList<Map<String,Object>>();
listOfObjects.add(jsonMap);
indexService.bulkInsert(listOfObjects);
From ES java api ;
Using the card
A map is a collection of key: values palettes. It represents the JSON structure:
Map<String, Object> json = new HashMap<String, Object>();
json.put("user","kimchy");
json.put("postDate",new Date());
json.put("message","trying out Elasticsearch");
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