Serge Huber created UNOMI-130:
---------------------------------
Summary: Use index templates to create new indexes with default
mappings instead of Java code
Key: UNOMI-130
URL: https://issues.apache.org/jira/browse/UNOMI-130
Project: Apache Unomi
Issue Type: Improvement
Components: core
Affects Versions: 1.3.0-incubating
Reporter: Serge Huber
Assignee: Serge Huber
Fix For: 1.3.0-incubating
We use some Java code to insert default mappings and settings into
automatically created indexes. But with ES 5.0 it is now possible to use index
templates. We should therefore replace our custom code to use index templates,
making maintenance and configuration of the templates a lot easier.
See :
https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-templates.html
Basically this would allow us to replace something like this (from
ElasticSearchPersistenceServiceImpl.java) :
{code}
private void internalCreateIndex(String indexName, Map<String, String>
mappings) {
CreateIndexRequestBuilder builder =
client.admin().indices().prepareCreate(indexName)
.setSettings("{\n" +
" \"index\" : {\n" +
" \"number_of_shards\" : " + numberOfShards +
",\n" +
" \"number_of_replicas\" : " + numberOfReplicas
+ "\n" +
" },\n" +
" \"analysis\": {\n" +
" \"analyzer\": {\n" +
" \"folding\": {\n" +
" \"type\":\"custom\",\n" +
" \"tokenizer\": \"keyword\",\n" +
" \"filter\": [ \"lowercase\",
\"asciifolding\" ]\n" +
" }\n" +
" }\n" +
" }\n" +
"}\n");
for (Map.Entry<String, String> entry : mappings.entrySet()) {
builder.addMapping(entry.getKey(), entry.getValue());
}
builder.execute().actionGet();
existingIndexNames.add(indexName);
}
{code}
to simply use something like this :
{code}
{
"template": "te*",
"settings": {
"number_of_shards": 1
},
"mappings": {
"type1": {
"_source": {
"enabled": false
},
"properties": {
"host_name": {
"type": "keyword"
},
"created_at": {
"type": "date",
"format": "EEE MMM dd HH:mm:ss Z YYYY"
}
}
}
}
}
{code}
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