Examples of QueryResponseWriter

org.apache.solr.request.QueryResponseWriter
@deprecated use org.apache.solr.response.QueryResponseWriter
org.apache.solr.response.QueryResponseWriter
Implementations of QueryResponseWriter are used to format responses to query requests. Different QueryResponseWriters are registered with the SolrCore. One way to register a QueryResponseWriter with the core is through the solrconfig.xml file.
Example solrconfig.xml entry to register a QueryResponseWriter implementation to handle all queries with a writer type of "simple":
<queryResponseWriter name="simple" class="foo.SimpleResponseWriter" />
A single instance of any registered QueryResponseWriter is created via the default constructor and is reused for all relevant queries. @version $Id: QueryResponseWriter.java 1075192 2011-02-28 00:50:09Z uschindler $

Examples of org.apache.solr.response.QueryResponseWriter

      if( rsp.getException() != null ) {
        throw rsp.getException();
      }


      // Now write it out
      QueryResponseWriter responseWriter = core.getQueryResponseWriter(req);
      StringWriter out = new StringWriter();
      responseWriter.write(out, req, rsp);
      return out.toString();
    } finally {
      if (req != null) {
        req.close();
      }

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Examples of org.apache.solr.response.QueryResponseWriter

        log.warn("Unknown Request Handler '" + solrReq.getQueryType() +"' :" + solrReq);
        throw new SolrException(SolrException.ErrorCode.BAD_REQUEST,"Unknown Request Handler '" + solrReq.getQueryType() + "'", true);
      }
      core.execute(handler, solrReq, solrRsp );
      if (solrRsp.getException() == null) {
        QueryResponseWriter responseWriter = core.getQueryResponseWriter(solrReq);
        // Now write it out
        final String ct = responseWriter.getContentType(solrReq, solrRsp);
        // don't call setContentType on null
        if (null != ct) response.setContentType(ct); 
        if (responseWriter instanceof BinaryQueryResponseWriter) {
          BinaryQueryResponseWriter binWriter = (BinaryQueryResponseWriter) responseWriter;
          binWriter.write(response.getOutputStream(), solrReq, solrRsp);
        } else {
          String charset = ContentStreamBase.getCharsetFromContentType(ct);
          Writer out = (charset == null || charset.equalsIgnoreCase("UTF-8"))
            ? new OutputStreamWriter(response.getOutputStream(), UTF8)
            : new OutputStreamWriter(response.getOutputStream(), charset);
          out = new FastWriter(out);
          responseWriter.write(out, solrReq, solrRsp);
          out.flush();
        }
      } else {
        Exception e = solrRsp.getException();
        int rc=500;

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Examples of org.apache.solr.response.QueryResponseWriter


  @Test
  public void testSimple() throws IOException {
    SolrQueryRequest req = req("dummy");
    SolrQueryResponse rsp = new SolrQueryResponse();
    QueryResponseWriter w = new PHPSerializedResponseWriter();


    StringWriter buf = new StringWriter();
    rsp.add("data1", "hello");
    rsp.add("data2", 42);
    rsp.add("data3", true);
    w.write(buf, req, rsp);
    assertEquals("a:3:{s:5:\"data1\";s:5:\"hello\";s:5:\"data2\";i:42;s:5:\"data3\";b:1;}", 
                 buf.toString());
    req.close();
  }

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Examples of org.apache.solr.response.QueryResponseWriter

  
  @Test
  public void testSolrDocuments() throws IOException {
    SolrQueryRequest req = req("q","*:*");
    SolrQueryResponse rsp = new SolrQueryResponse();
    QueryResponseWriter w = new PHPSerializedResponseWriter();
    StringWriter buf = new StringWriter();


    SolrDocument d = new SolrDocument();


    SolrDocument d1 = d;
    d.addField("id","1");
    d.addField("data1","hello");
    d.addField("data2",42);
    d.addField("data3",true);


    // multivalued fields: 


    // extremely odd edge case: value is a map


    // we use LinkedHashMap because we are doing a string comparison 
    // later and we need predictible ordering
    LinkedHashMap<String,String> nl = new LinkedHashMap<String,String>();
    nl.put("data4.1", "hashmap");
    nl.put("data4.2", "hello");
    d.addField("data4",nl);
    // array value 
    d.addField("data5",Arrays.asList("data5.1", "data5.2", "data5.3"));


    // adding one more document to test array indexes
    d = new SolrDocument();
    SolrDocument d2 = d;
    d.addField("id","2");


    SolrDocumentList sdl = new SolrDocumentList();
    sdl.add(d1);
    sdl.add(d2);
    rsp.add("response", sdl); 
    
    w.write(buf, req, rsp);
    assertEquals("a:1:{s:8:\"response\";a:3:{s:8:\"numFound\";i:0;s:5:\"start\";i:0;s:4:\"docs\";a:2:{i:0;a:6:{s:2:\"id\";s:1:\"1\";s:5:\"data1\";s:5:\"hello\";s:5:\"data2\";i:42;s:5:\"data3\";b:1;s:5:\"data4\";a:2:{s:7:\"data4.1\";s:7:\"hashmap\";s:7:\"data4.2\";s:5:\"hello\";}s:5:\"data5\";a:3:{i:0;s:7:\"data5.1\";i:1;s:7:\"data5.2\";i:2;s:7:\"data5.3\";}}i:1;a:1:{s:2:\"id\";s:1:\"2\";}}}}", 
                 buf.toString());
    req.close();
  }

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Examples of org.apache.solr.response.QueryResponseWriter

  public String query(String handler, SolrQueryRequest req) throws IOException, Exception {
    try {
      SolrQueryResponse rsp = queryAndResponse(handler, req);


      StringWriter sw = new StringWriter(32000);
      QueryResponseWriter responseWriter = core.getQueryResponseWriter(req);
      responseWriter.write(sw,req,rsp);


      req.close();


      return sw.toString();
    } finally {

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Examples of org.apache.solr.response.QueryResponseWriter

  }
  
  /** Finds a writer by name, or returns the default writer if not found. */
  public final QueryResponseWriter getQueryResponseWriter(String writerName) {
    if (writerName != null) {
        QueryResponseWriter writer = responseWriters.get(writerName);
        if (writer != null) {
            return writer;
        }
    }
    return defaultResponseWriter;

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Examples of org.apache.solr.response.QueryResponseWriter

  }




  void doPerf(String writerName, SolrQueryRequest req, int encIter, int decIter) throws Exception {
    SolrQueryResponse rsp = getResponse(req);
    QueryResponseWriter w = h.getCore().getQueryResponseWriter(writerName);




    ByteArrayOutputStream out=null;


    System.gc();
    long start = System.currentTimeMillis();
    for (int i=0; i<encIter; i++) {
    if (w instanceof BinaryQueryResponseWriter) {
      BinaryQueryResponseWriter binWriter = (BinaryQueryResponseWriter) w;
      out = new ByteArrayOutputStream();
      binWriter.write(out, req, rsp);
      out.close();
    } else {
      out = new ByteArrayOutputStream();
      // to be fair, from my previous tests, much of the performance will be sucked up
      // by java's UTF-8 encoding/decoding, not the actual writing
      Writer writer = new OutputStreamWriter(out, "UTF-8");
      w.write(writer, req, rsp);
      writer.close();
    }
    }


    long encodeTime = Math.max(System.currentTimeMillis() - start, 1);

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Examples of org.apache.solr.response.QueryResponseWriter

  
  @Test
  public void testNaNInf() throws IOException {
    SolrQueryRequest req = req("dummy");
    SolrQueryResponse rsp = new SolrQueryResponse();
    QueryResponseWriter w = new PythonResponseWriter();


    StringWriter buf = new StringWriter();
    rsp.add("data1", Float.NaN);
    rsp.add("data2", Double.NEGATIVE_INFINITY);
    rsp.add("data3", Float.POSITIVE_INFINITY);
    w.write(buf, req, rsp);
    assertEquals(buf.toString(), "{'data1':float('NaN'),'data2':-float('Inf'),'data3':float('Inf')}");


    w = new RubyResponseWriter();
    buf = new StringWriter();
    w.write(buf, req, rsp);
    assertEquals(buf.toString(), "{'data1'=>(0.0/0.0),'data2'=>-(1.0/0.0),'data3'=>(1.0/0.0)}");


    w = new JSONResponseWriter();
    buf = new StringWriter();
    w.write(buf, req, rsp);
    assertEquals(buf.toString(), "{\"data1\":\"NaN\",\"data2\":\"-Infinity\",\"data3\":\"Infinity\"}");
    req.close();
  }

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Examples of org.apache.solr.response.QueryResponseWriter

      NamedList<Object> values = queryResponse.getResponse();
      String contextPath = httpRequest.getContextPath();
      if (contextPath.length() > 0)
        setSearchResultContext(values, contextPath);
      solrResponse.setAllValues(values);
      QueryResponseWriter writer = core.getQueryResponseWriter("json"); //$NON-NLS-1$
      writer.write(httpResponse.getWriter(), solrRequest, solrResponse);
    } finally {
      if (solrRequest != null) {
        solrRequest.close();
      }
    }

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