org.apache.solr.response

Class JSONResponseWriter

java.lang.Object

org.apache.solr.response.JSONResponseWriter

All Implemented Interfaces:

QueryResponseWriter, NamedListInitializedPlugin

Direct Known Subclasses:

GeoJSONResponseWriter

public class JSONResponseWriter
extends Object
implements QueryResponseWriter

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONTENT_TYPE_JSON_UTF8

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

CONTENT_TYPE_TEXT_ASCII, CONTENT_TYPE_TEXT_UTF8, CONTENT_TYPE_XML_UTF8

Constructor Summary

Constructors

Constructor and Description
JSONResponseWriter()

Method Summary

Modifier and Type	Method and Description
String	getContentType(SolrQueryRequest request, SolrQueryResponse response) Return the applicable Content Type for a request, this method must be thread safe.
static PushWriter	getPushWriter(Writer writer, SolrQueryRequest req, SolrQueryResponse rsp)
void	init(NamedList namedList) init will be called just once, immediately after creation.
void	write(Writer writer, SolrQueryRequest req, SolrQueryResponse rsp) 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

CONTENT_TYPE_JSON_UTF8

public static String CONTENT_TYPE_JSON_UTF8

Constructor Detail

JSONResponseWriter

public JSONResponseWriter()

Method Detail

init

public void init(NamedList namedList)

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

write

public void write(Writer writer,
                  SolrQueryRequest req,
                  SolrQueryResponse rsp)
           throws IOException

Description copied from interface: QueryResponseWriter

Write a SolrQueryResponse, this method must be thread save.

Information about the request (in particular: formatting 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

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.

getPushWriter

public static PushWriter getPushWriter(Writer writer,
                                       SolrQueryRequest req,
                                       SolrQueryResponse rsp)