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https://issues.apache.org/jira/browse/SOLR-3387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13258399#comment-13258399
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Ryan McKinley commented on SOLR-3387:
-------------------------------------
as a quick sketch, I'm looking at something like:
{code:java}
return new ContentStreamLoader() {
XMLLoader xml = null;
JavabinLoader javabin = null;
JsonLoader json = null;
CSVLoader csv = null;
@Override
public void load(SolrQueryRequest req, SolrQueryResponse rsp,
ContentStream stream) throws Exception {
ContentStreamLoader loader = null;
String type = stream.getContentType();
if (type.contains("javabin")) {
if (javabin == null) {
javabin = new JavabinLoader(processor);
setDefaultWT("javabin", req);
}
loader = javabin;
} else if (type.contains("xml")) {
if (xml == null) {
xml = new XMLLoader(processor, inputFactory);
setDefaultWT("xml", req);
}
loader = xml;
} else if (type.contains("json")) {
if (json == null) {
json = new JsonLoader(req, processor);
setDefaultWT("json", req);
}
loader = json;
} else if (type.contains("csv")) {
if (csv == null) {
csv = new SingleThreadedCSVLoader(req, processor);
// setDefaultWT("csv", req); Should this default?
}
loader = csv;
}
if (loader == null) {
throw new SolrException(ErrorCode.BAD_REQUEST,
"Unsupported Content-Type: '" + type + "'");
}
loader.load(req, rsp, stream);
}
private void setDefaultWT(String wt, SolrQueryRequest req) {
SolrParams params = req.getParams();
if( params.get(CommonParams.WT) == null ) {
Map<String,String> map = new HashMap<String,String>(1);
map.put(CommonParams.WT, wt);
req.setParams(SolrParams.wrapDefaults(params,
new MapSolrParams(map)));
}
}
};
{code}
Any red flags? We could have more strict content-type rules
If we like the general idea/approach I'll clean things up with tests etc.
For back compatibility any opinions?
* @Deprecated JsonUpdateRequestHandler could simply extend the general
UpdateRequestHandler (now requiring proper content-type)
* @Deprecated JsonUpdateRequestHandler could could call JsonLoader explicitly
(same as 3.x)
* remove it completely
> UpdateRequestHandler should support XML,CSV,JSON, and javabin
> -------------------------------------------------------------
>
> Key: SOLR-3387
> URL: https://issues.apache.org/jira/browse/SOLR-3387
> Project: Solr
> Issue Type: Improvement
> Reporter: Ryan McKinley
> Fix For: 4.0
>
>
> Rather then have 4 handlers to support 4 content types, we should use a
> single endpoint and pick the ContentStreamLoader based on the ContentType
> This will simplify configuration problems for clients that want to swtich
> format (see SOLR-3038)
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