Examples of org.apache.solr.common.util.SimpleOrderedMap

org.apache.solr.common.util.SimpleOrderedMap
SimpleOrderedMap is a {@link NamedList} where access by key is moreimportant than maintaining order when it comes to representing the held data in other forms, as ResponseWriters normally do. It's normally not a good idea to repeat keys or use null keys, but this is not enforced. If key uniqueness enforcement is desired, use a regular {@link Map}.
For example, a JSON response writer may choose to write a SimpleOrderedMap as {"foo":10,"bar":20} and may choose to write a NamedList as ["foo",10,"bar",20]. An XML response writer may choose to render both the same way.

This class does not provide efficient lookup by key, it's main purpose is to hold data to be serialized. It aims to minimize overhead and to be efficient at adding new elements.

    
    //SpellCheckCompRH has no "qf" defined.  It will not find "peace" from "peac" despite it being in the dictionary
    //because requrying against this Request Handler results in 0 hits.  
    SolrRequestHandler handler = core.getRequestHandler("spellCheckCompRH");
    SolrQueryResponse rsp = new SolrQueryResponse();
    rsp.add("responseHeader", new SimpleOrderedMap());
    SolrQueryRequest req = new LocalSolrQueryRequest(core, params);
    handler.handleRequest(req, rsp);
    req.close();
    NamedList values = rsp.getValues();
    NamedList spellCheck = (NamedList) values.get("spellcheck");
    NamedList suggestions = (NamedList) spellCheck.get("suggestions");
    String singleCollation = (String) suggestions.get("collation");
    assertNull(singleCollation);
    
    //SpellCheckCompRH1 has "lowerfilt1" defined in the "qf" param.  It will find "peace" from "peac" because
    //requrying field "lowerfilt1" returns the hit.
    params.remove(SpellCheckComponent.SPELLCHECK_BUILD);
    handler = core.getRequestHandler("spellCheckCompRH1");
    rsp = new SolrQueryResponse();
    rsp.add("responseHeader", new SimpleOrderedMap());
    req = new LocalSolrQueryRequest(core, params);
    handler.handleRequest(req, rsp);
    req.close();
    values = rsp.getValues();
    spellCheck = (NamedList) values.get("spellcheck");

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    // Returns 1 collation as a single string.
    // All words are "correct" per the dictionary, but this collation would
    // return no results if tried.
    SolrRequestHandler handler = core.getRequestHandler("spellCheckCompRH");
    SolrQueryResponse rsp = new SolrQueryResponse();
    rsp.add("responseHeader", new SimpleOrderedMap());
    SolrQueryRequest req = new LocalSolrQueryRequest(core, params);
    handler.handleRequest(req, rsp);
    req.close();
    NamedList values = rsp.getValues();
    NamedList spellCheck = (NamedList) values.get("spellcheck");
    NamedList suggestions = (NamedList) spellCheck.get("suggestions");
    String singleCollation = (String) suggestions.get("collation");
    assertEquals("lowerfilt:(+faith +homer +loaves)", singleCollation);


    // Testing backwards-compatible response format but will only return a
    // collation that would return results.
    params.remove(SpellCheckComponent.SPELLCHECK_BUILD);
    params.add(SpellCheckComponent.SPELLCHECK_MAX_COLLATION_TRIES, "5");
    params.add(SpellCheckComponent.SPELLCHECK_MAX_COLLATIONS, "1");
    handler = core.getRequestHandler("spellCheckCompRH");
    rsp = new SolrQueryResponse();
    rsp.add("responseHeader", new SimpleOrderedMap());
    req = new LocalSolrQueryRequest(core, params);
    handler.handleRequest(req, rsp);
    req.close();
    values = rsp.getValues();
    spellCheck = (NamedList) values.get("spellcheck");
    suggestions = (NamedList) spellCheck.get("suggestions");
    singleCollation = (String) suggestions.get("collation");
    assertEquals("lowerfilt:(+faith +hope +loaves)", singleCollation);


    // Testing returning multiple collations if more than one valid
    // combination exists.
    params.remove(SpellCheckComponent.SPELLCHECK_MAX_COLLATION_TRIES);
    params.remove(SpellCheckComponent.SPELLCHECK_MAX_COLLATIONS);
    params.add(SpellCheckComponent.SPELLCHECK_MAX_COLLATION_TRIES, "10");
    params.add(SpellCheckComponent.SPELLCHECK_MAX_COLLATIONS, "2");
    handler = core.getRequestHandler("spellCheckCompRH");
    rsp = new SolrQueryResponse();
    rsp.add("responseHeader", new SimpleOrderedMap());
    req = new LocalSolrQueryRequest(core, params);
    handler.handleRequest(req, rsp);
    req.close();
    values = rsp.getValues();
    spellCheck = (NamedList) values.get("spellcheck");
    suggestions = (NamedList) spellCheck.get("suggestions");
    List<String> collations = suggestions.getAll("collation");
    assertTrue(collations.size() == 2);
    for (String multipleCollation : collations) {
      assertTrue(multipleCollation.equals("lowerfilt:(+faith +hope +love)")
          || multipleCollation.equals("lowerfilt:(+faith +hope +loaves)"));
    }


    // Testing return multiple collations with expanded collation response
    // format.
    params.add(SpellCheckComponent.SPELLCHECK_COLLATE_EXTENDED_RESULTS, "true");
    handler = core.getRequestHandler("spellCheckCompRH");
    rsp = new SolrQueryResponse();
    rsp.add("responseHeader", new SimpleOrderedMap());
    req = new LocalSolrQueryRequest(core, params);
    handler.handleRequest(req, rsp);
    req.close();
    values = rsp.getValues();
    spellCheck = (NamedList) values.get("spellcheck");

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  public URL[] getDocs() {
    return null;
  }


  public NamedList getStatistics() {
    NamedList lst = new SimpleOrderedMap();
    lst.add("searcherName", name);
    lst.add("caching", cachingEnabled);
    lst.add("numDocs", reader.numDocs());
    lst.add("maxDoc", reader.maxDoc());
    lst.add("reader", reader.toString());
    lst.add("readerDir", reader.directory());
    lst.add("indexVersion", reader.getVersion());
    lst.add("openedAt", new Date(openTime));
    if (registerTime!=0) lst.add("registeredAt", new Date(registerTime));
    lst.add("warmupTime", warmupTime);
    return lst;
  }

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          }
        }
      }


      // remove nulls in case not all docs were able to be retrieved
      rb.rsp.add("highlighting", removeNulls(new SimpleOrderedMap(arr)));      
    }
  }

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  static NamedList removeNulls(NamedList nl) {
    for (int i=0; i<nl.size(); i++) {
      if (nl.getName(i)==null) {
        NamedList newList = nl instanceof SimpleOrderedMap ? new SimpleOrderedMap() : new NamedList();
        for (int j=0; j<nl.size(); j++) {
          String n = nl.getName(j);
          if (n != null) {
            newList.add(n, nl.getVal(j));
          }

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  @Override
  public void finishStage(ResponseBuilder rb) {
    if (rb.isDebug() && rb.stage == ResponseBuilder.STAGE_GET_FIELDS) {
      NamedList info = null;
      NamedList explain = new SimpleOrderedMap();


      Map.Entry<String, Object>[]  arr =  new NamedList.NamedListEntry[rb.resultIds.size()];


      for (ShardRequest sreq : rb.finished) {
        if ((sreq.purpose & ShardRequest.PURPOSE_GET_DEBUG) == 0) continue;
        for (ShardResponse srsp : sreq.responses) {
          NamedList sdebug = (NamedList)srsp.getSolrResponse().getResponse().get("debug");
          info = (NamedList)merge(sdebug, info, excludeSet);


          NamedList sexplain = (NamedList)sdebug.get("explain");


          for (int i=0; i<sexplain.size(); i++) {
            String id = sexplain.getName(i);
            // TODO: lookup won't work for non-string ids... String vs Float
            ShardDoc sdoc = rb.resultIds.get(id);
            int idx = sdoc.positionInResponse;
            arr[idx] = new NamedList.NamedListEntry<Object>( id, sexplain.getVal(i)); 
          }
        }
      }


      explain = HighlightComponent.removeNulls(new SimpleOrderedMap(arr));


      if (info == null) {
        info = new SimpleOrderedMap();
      }
      int idx = info.indexOf("explain",0);
      if (idx>=0) {
        info.setVal(idx, explain);
      } else {

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  Object merge(Object source, Object dest, Set<String> exclude) {
    if (source == null) return dest;
    if (dest == null) {
      if (source instanceof NamedList) {
        dest = source instanceof SimpleOrderedMap ? new SimpleOrderedMap() : new NamedList();
      } else {
        return source;
      }
    } else {

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  public URL[] getDocs() {
    return null;
  }


  public NamedList getStatistics() {
    NamedList lst = new SimpleOrderedMap();
    lst.add("commits", commitCommands.get());
    if (tracker.docsUpperBound > 0) {
      lst.add("autocommit maxDocs", tracker.docsUpperBound);
    }
    if (tracker.timeUpperBound > 0) {
      lst.add("autocommit maxTime", "" + tracker.timeUpperBound + "ms");
    }
    lst.add("autocommits", tracker.autoCommitCount);
    lst.add("optimizes", optimizeCommands.get());
    lst.add("rollbacks", rollbackCommands.get());
    lst.add("expungeDeletes", expungeDeleteCommands.get());
    lst.add("docsPending", numDocsPending.get());
    // pset.size() not synchronized, but it should be fine to access.
    // lst.add("deletesPending", pset.size());
    lst.add("adds", addCommands.get());
    lst.add("deletesById", deleteByIdCommands.get());
    lst.add("deletesByQuery", deleteByQueryCommands.get());
    lst.add("errors", numErrors.get());
    lst.add("cumulative_adds", addCommandsCumulative.get());
    lst.add("cumulative_deletesById", deleteByIdCommandsCumulative.get());
    lst.add("cumulative_deletesByQuery", deleteByQueryCommandsCumulative.get());
    lst.add("cumulative_errors", numErrorsCumulative.get());
    return lst;
  }

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    SolrRequestHandler handler = core.getRequestHandler("standard");
    SolrQueryResponse rsp;
    rsp = new SolrQueryResponse();
    rsp.add("responseHeader", new SimpleOrderedMap());
    SolrQueryRequest req = new LocalSolrQueryRequest(core, params);
    handler.handleRequest(req, rsp);
    NamedList values = rsp.getValues();
    Object clusters = values.get("clusters");
    //System.out.println("Clusters: " + clusters);
    assertTrue("clusters is null and it shouldn't be", clusters != null);
    req.close();


    params = new ModifiableSolrParams();
    params.add(ClusteringComponent.COMPONENT_NAME, "true");
    params.add(ClusteringParams.ENGINE_NAME, "mock");
    params.add(ClusteringParams.USE_COLLECTION, "true");
    params.add(QueryComponent.COMPONENT_NAME, "false");


    handler = core.getRequestHandler("docClustering");


    rsp = new SolrQueryResponse();
    rsp.add("responseHeader", new SimpleOrderedMap());
    req = new LocalSolrQueryRequest(core, params);
    handler.handleRequest(req, rsp);
    values = rsp.getValues();
    clusters = values.get("clusters");
    //System.out.println("Clusters: " + clusters);

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  public URL[] getDocs() {
    return null;  // this can be overridden, but not required
  }


  public NamedList getStatistics() {
    NamedList lst = new SimpleOrderedMap();
    return lst;
  }

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