org.apache.solr.response
Class XSLTResponseWriter

java.lang.Object
  org.apache.solr.response.XSLTResponseWriter

All Implemented Interfaces:

QueryResponseWriter, NamedListInitializedPlugin

public class XSLTResponseWriter
extends Object
implements QueryResponseWriter

QueryResponseWriter which captures the output of the XMLWriter (in memory for now, not optimal performancewise), and applies an XSLT transform to it.

Field Summary

static String	CONTEXT_TRANSFORMER_KEY
static String	DEFAULT_CONTENT_TYPE
static int	XSLT_CACHE_DEFAULT

Fields inherited from interface org.apache.solr.response.QueryResponseWriter

CONTENT_TYPE_TEXT_ASCII, CONTENT_TYPE_TEXT_UTF8, CONTENT_TYPE_XML_UTF8

Constructor Summary

XSLTResponseWriter()

Method Summary

String	getContentType(SolrQueryRequest request, SolrQueryResponse response) Return the applicable Content Type for a request, this method must be thread safe.
protected Transformer	getTransformer(SolrQueryRequest request) Get Transformer from request context, or from TransformerProvider.
void	init(NamedList n) init will be called just once, immediately after creation.
void	write(Writer writer, SolrQueryRequest request, SolrQueryResponse response) Write a SolrQueryResponse, this method must be thread save.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_CONTENT_TYPE

public static final String DEFAULT_CONTENT_TYPE

See Also:

Constant Field Values

CONTEXT_TRANSFORMER_KEY

public static final String CONTEXT_TRANSFORMER_KEY

See Also:

Constant Field Values

XSLT_CACHE_DEFAULT

public static final int XSLT_CACHE_DEFAULT

See Also:

Constant Field Values

Constructor Detail

XSLTResponseWriter

public XSLTResponseWriter()

Method Detail

init

public void init(NamedList n)

Description copied from interface: QueryResponseWriter

init will be called just once, immediately after creation.

The args are user-level initialization parameters that may be specified when declaring a response writer in solrconfig.xml

Specified by:

init in interface QueryResponseWriter

Specified by:

init in interface NamedListInitializedPlugin

getContentType

public String getContentType(SolrQueryRequest request,
                             SolrQueryResponse response)

Description copied from interface: QueryResponseWriter

Return the applicable Content Type for a request, this method must be thread safe.

QueryResponseWriter's must implement this method to return a valid HTTP Content-Type header for the request, that will logically correspond with the output produced by the write method.

Specified by:

getContentType in interface QueryResponseWriter

Returns:

a Content-Type string, which may not be null.

write

public void write(Writer writer,
                  SolrQueryRequest request,
                  SolrQueryResponse response)
           throws IOException

Description copied from interface: QueryResponseWriter

Write a SolrQueryResponse, this method must be thread save.

Information about the request (in particular: formating options) may be obtained from req but the dominant source of information should be rsp.

There are no mandatory actions that write must perform. An empty write implementation would fulfill all interface obligations.

Specified by:

write in interface QueryResponseWriter

Throws:

IOException

getTransformer

protected Transformer getTransformer(SolrQueryRequest request)
                              throws IOException

Get Transformer from request context, or from TransformerProvider. This allows either getContentType(...) or write(...) to instantiate the Transformer, depending on which one is called first, then the other one reuses the same Transformer

Throws:

IOException