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Posted to dev@lucene.apache.org by "Sami Siren (Assigned) (JIRA)" <ji...@apache.org> on 2012/04/19 09:11:42 UTC
[jira] [Assigned] (SOLR-3375) Charset problem using HttpSolrServer
instead of CommonsHttpSolrServer
[ https://issues.apache.org/jira/browse/SOLR-3375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sami Siren reassigned SOLR-3375:
--------------------------------
Assignee: Sami Siren
> Charset problem using HttpSolrServer instead of CommonsHttpSolrServer
> ---------------------------------------------------------------------
>
> Key: SOLR-3375
> URL: https://issues.apache.org/jira/browse/SOLR-3375
> Project: Solr
> Issue Type: Bug
> Components: clients - java
> Affects Versions: 3.6
> Reporter: Roger Håkansson
> Assignee: Sami Siren
> Fix For: 3.6.1
>
> Attachments: SolrTest.java, commonshttpsolrserver-dump.txt, httpsolrserver-dump.txt
>
>
> I've written an application which sends PDF files to Solr for indexing, but I also need to index some meta-data which isn't contained inside the PDF.
> I recently upgraded to 3.6.0 and when recompiling my app, I got some deprecated messages which mainly was to switch from CommonsHttpSolrServer to HttpSolrServer.
> The problem I've noticed since doing this, is that all extra fields which I add is sent to the Solr server as ASCII only, i.e UTF-8/ISO-8859-1 doesn't matter, anything above char 127 is sent as '?'. This was not the behaviour of CommonsHttpSolrServer.
> I've tracked it down to a line (271 in 3.6.0) in HttpSolrServer.java which is:
> entity.addPart(name, new StringBody(value));
> The problem is that StringBody(String text) maps to
> StringBody(text, "text/plain", null);
> and in
> StringBody(String text, String mimeType, Charset charset)
> we have this piece of code:
> if (charset == null) {
> charset = Charset.forName("US-ASCII");
> }
> this.content = text.getBytes(charset.name());
> this.charset = charset;
> So unless charset is set everything is converted to US-ASCII.
> On the other hand, in CommonsHttpSolrServer.java (line 310 in 3.6.0) there is this line
> parts.add(new StringPart(p, v, "UTF-8"));
> which adds everything as UTF-8.
> The simple solution would be to change the faulty line in HttpSolrServer.java to
> entity.addPart(name, new StringBody(value,Charset.forName("UTF-8")));
> However, this doesn't work either since my tests have shown that neither Jetty or Tomcat recognizes the strings as UTF-8 but interprets them as 8-bit (8859-1 I guess).
> So changing HttpSolrServer.java to
> entity.addPart(name, new StringBody(value,Charset.forName("ISO-8859-1")));
> actually gives me the same result as using CommonsHttpSolrServer.
> But my investigations have shown that there is a difference in how Commons-HttpClient and HttpClient-4.x works.
> Commons-HttpClient sends all parameters as regular POST parameters but URLEncoded (/update/extract?param1=value¶m2=value2) while
> HttpClient-4.x sends them as multipart/form-data messages and I think that the problem is that each multipart-message should have its own charset parameter.
> I.e HttpClient-4.x sends
> -----------------------------------------------------------------------------------
> --jNljZ3jE1sHG529HrzSjZWYEad-6Wu
> Content-Disposition: form-data; name="literal.string_txt"
> åäö
> -----------------------------------------------------------------------------------
> But it should probably send something like this
> -----------------------------------------------------------------------------------
> --jNljZ3jE1sHG529HrzSjZWYEad-6Wu
> Content-Disposition: form-data; name="literal.string_txt"
> Content-Type: text/plain; charset=utf-8
> åäö
> -----------------------------------------------------------------------------------
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