Examples of org.apache.solr.common.params.SolrParams

org.apache.solr.common.params.SolrParams
SolrParams hold request parameters. @version $Id$

      this.searcher = searcher;
      this.reader = searcher.getReader();
      this.uniqueKeyField = searcher.getSchema().getUniqueKeyField();
      this.needDocSet = params.getBool(FacetParams.FACET,false);
      
      SolrParams required = params.required();
      String[] fields = splitList.split( required.get(MoreLikeThisParams.SIMILARITY_FIELDS) );
      if( fields.length < 1 ) {
        throw new SolrException( SolrException.ErrorCode.BAD_REQUEST, 
            "MoreLikeThis requires at least one similarity field: "+MoreLikeThisParams.SIMILARITY_FIELDS );
      }

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public abstract class ContentStreamHandlerBase extends RequestHandlerBase {
  public static Logger log = LoggerFactory.getLogger(XmlUpdateRequestHandler.class);


  @Override
  public void handleRequestBody(SolrQueryRequest req, SolrQueryResponse rsp) throws Exception {
    SolrParams params = req.getParams();
    String updateChainName = null;
    if(params.get(UpdateParams.UPDATE_CHAIN_DEPRECATED) != null) {
      log.warn("Use of deprecated update request parameter "+UpdateParams.UPDATE_CHAIN_DEPRECATED+
           " detected. Please use the new parameter "+UpdateParams.UPDATE_CHAIN+" instead, as support"+
           " for "+UpdateParams.UPDATE_CHAIN_DEPRECATED+" will be removed in a later version.");
      updateChainName = params.get(UpdateParams.UPDATE_CHAIN_DEPRECATED);
    } else {
      updateChainName = params.get(UpdateParams.UPDATE_CHAIN);
    }
    UpdateRequestProcessorChain processorChain =
            req.getCore().getUpdateProcessingChain(updateChainName);


    UpdateRequestProcessor processor = processorChain.createProcessor(req, rsp);

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  @Override
  @SuppressWarnings("unchecked")
  public void handleRequestBody(SolrQueryRequest req, SolrQueryResponse rsp)
          throws Exception {
    rsp.setHttpCaching(false);
    SolrParams params = req.getParams();
    DataImporter.RequestParams requestParams = new DataImporter.RequestParams(getParamsMap(params));
    String command = requestParams.command;
    Iterable<ContentStream> streams = req.getContentStreams();
    if(streams != null){
      for (ContentStream stream : streams) {
          requestParams.contentStream = stream;
          break;
      }
    }
    if (DataImporter.SHOW_CONF_CMD.equals(command)) {
      // Modify incoming request params to add wt=raw
      ModifiableSolrParams rawParams = new ModifiableSolrParams(req.getParams());
      rawParams.set(CommonParams.WT, "raw");
      req.setParams(rawParams);
      String dataConfigFile = defaults.get("config");
      ContentStreamBase content = new ContentStreamBase.StringStream(SolrWriter
              .getResourceAsString(req.getCore().getResourceLoader().openResource(
              dataConfigFile)));
      rsp.add(RawResponseWriter.CONTENT, content);
      return;
    }


    rsp.add("initArgs", initArgs);
    String message = "";


    if (command != null)
      rsp.add("command", command);


    if (requestParams.debug && (importer == null || !importer.isBusy())) {
      // Reload the data-config.xml
      importer = null;
      if (requestParams.dataConfig != null) {
        try {
          processConfiguration((NamedList) initArgs.get("defaults"));
          importer = new DataImporter(new InputSource(new StringReader(requestParams.dataConfig)), req.getCore()
                  , dataSources, coreScopeSession);
        } catch (RuntimeException e) {
          rsp.add("exception", DebugLogger.getStacktraceString(e));
          importer = null;
          return;
        }
      } else {
        inform(req.getCore());
      }
      message = DataImporter.MSG.CONFIG_RELOADED;
    }


    // If importer is still null
    if (importer == null) {
      rsp.add("status", DataImporter.MSG.NO_INIT);
      return;
    }


    if (command != null && DataImporter.ABORT_CMD.equals(command)) {
      importer.runCmd(requestParams, null);
    } else if (importer.isBusy()) {
      message = DataImporter.MSG.CMD_RUNNING;
    } else if (command != null) {
      if (DataImporter.FULL_IMPORT_CMD.equals(command)
              || DataImporter.DELTA_IMPORT_CMD.equals(command) ||
              IMPORT_CMD.equals(command)) {


        UpdateRequestProcessorChain processorChain =
                req.getCore().getUpdateProcessingChain(params.get(UpdateParams.UPDATE_CHAIN));
        UpdateRequestProcessor processor = processorChain.createProcessor(req, rsp);
        SolrResourceLoader loader = req.getCore().getResourceLoader();
        SolrWriter sw = getSolrWriter(processor, loader, requestParams);


        if (requestParams.debug) {

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  int maxNumToLog = 8;
  
  @Override
  public void init( final NamedList args ) {
    if( args != null ) {
      SolrParams params = SolrParams.toSolrParams( args );
      maxNumToLog = params.getInt( "maxNumToLog", maxNumToLog );
    }
  }

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              "Core container instance missing");
    }
    boolean doPersist = false;


    // Pick the action
    SolrParams params = req.getParams();
    CoreAdminAction action = CoreAdminAction.STATUS;
    String a = params.get(CoreAdminParams.ACTION);
    if (a != null) {
      action = CoreAdminAction.get(a);
      if (action == null) {
        doPersist = this.handleCustomAction(req, rsp);
      }

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    }
    rsp.setHttpCaching(false);
  }


  protected boolean handleMergeAction(SolrQueryRequest req, SolrQueryResponse rsp) throws IOException {
    SolrParams params = req.getParams();
    String cname = params.required().get(CoreAdminParams.CORE);
    SolrCore core = coreContainer.getCore(cname);


    SolrCore[] sourceCores = null;
    RefCounted<SolrIndexSearcher>[] searchers = null;
    // stores readers created from indexDir param values
    IndexReader[] readersToBeClosed = null;
    if (core != null) {
      try {
        String[] dirNames = params.getParams(CoreAdminParams.INDEX_DIR);
        if (dirNames == null || dirNames.length == 0) {
          String[] sources = params.getParams("srcCore");
          if (sources == null || sources.length == 0)
            throw new SolrException( SolrException.ErrorCode.BAD_REQUEST,
                "At least one indexDir or srcCore must be specified");


          sourceCores = new SolrCore[sources.length];
          for (int i = 0; i < sources.length; i++) {
            String source = sources[i];
            SolrCore srcCore = coreContainer.getCore(source);
            if (srcCore == null)
              throw new SolrException(SolrException.ErrorCode.BAD_REQUEST,
                  "Core: " + source + " does not exist");
            sourceCores[i] = srcCore;
          }
        } else  {
          readersToBeClosed = new IndexReader[dirNames.length];
          DirectoryFactory dirFactory = core.getDirectoryFactory();
          for (int i = 0; i < dirNames.length; i++) {
            readersToBeClosed[i] = IndexReader.open(dirFactory.open(dirNames[i]), true);
          }
        }


        IndexReader[] readers = null;
        if (readersToBeClosed != null)  {
          readers = readersToBeClosed;
        } else {
          readers = new IndexReader[sourceCores.length];
          searchers = new RefCounted[sourceCores.length];
          for (int i = 0; i < sourceCores.length; i++) {
            SolrCore solrCore = sourceCores[i];
            // record the searchers so that we can decref
            searchers[i] = solrCore.getSearcher();
            readers[i] = searchers[i].get().getIndexReader();
          }
        }


        UpdateRequestProcessorChain processorChain =
                core.getUpdateProcessingChain(params.get(UpdateParams.UPDATE_CHAIN));
        SolrQueryRequest wrappedReq = new LocalSolrQueryRequest(core, req.getParams());
        UpdateRequestProcessor processor =
                processorChain.createProcessor(wrappedReq, rsp);


        processor.processMergeIndexes(new MergeIndexesCommand(readers));

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  }


  @Override
  public void process(ResponseBuilder rb) throws IOException
  {
    SolrParams p = rb.req.getParams();
    if( p.getBool( MoreLikeThisParams.MLT, false ) ) {
      SolrIndexSearcher searcher = rb.req.getSearcher();
      
      NamedList<DocList> sim = getMoreLikeThese( rb, searcher,
          rb.getResults().docList, rb.getFieldFlags() );

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    }
  }


  NamedList<DocList> getMoreLikeThese( ResponseBuilder rb, SolrIndexSearcher searcher,
      DocList docs, int flags ) throws IOException {
    SolrParams p = rb.req.getParams();
    IndexSchema schema = searcher.getSchema();
    MoreLikeThisHandler.MoreLikeThisHelper mltHelper 
      = new MoreLikeThisHandler.MoreLikeThisHelper( p, searcher );
    NamedList<DocList> mlt = new SimpleOrderedMap<DocList>();
    DocIterator iterator = docs.iterator();


    SimpleOrderedMap<Object> dbg = null;
    if( rb.isDebug() ){
      dbg = new SimpleOrderedMap<Object>();
    }


    while( iterator.hasNext() ) {
      int id = iterator.nextDoc();
      int rows = p.getInt( MoreLikeThisParams.DOC_COUNT, 5 );
      DocListAndSet sim = mltHelper.getMoreLikeThis( id, 0, rows, null, null, flags );
      String name = schema.printableUniqueKey( searcher.doc( id ) );
      mlt.add(name, sim.docList);
      
      if( dbg != null ){

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   *
   * @throws SolrException in case of a configuration error.
   */
  protected boolean handleCreateAction(SolrQueryRequest req, SolrQueryResponse rsp) throws SolrException {
    try {
      SolrParams params = req.getParams();
      String name = params.get(CoreAdminParams.NAME);
      CoreDescriptor dcore = new CoreDescriptor(coreContainer, name, params.get(CoreAdminParams.INSTANCE_DIR));


      //  fillup optional parameters
      String opts = params.get(CoreAdminParams.CONFIG);
      if (opts != null)
        dcore.setConfigName(opts);


      opts = params.get(CoreAdminParams.SCHEMA);
      if (opts != null)
        dcore.setSchemaName(opts);


      opts = params.get(CoreAdminParams.DATA_DIR);
      if (opts != null)
        dcore.setDataDir(opts);


      dcore.setCoreProperties(null);
      SolrCore core = coreContainer.create(dcore);

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   *
   * @return AnalysisRequest containing all the information about what needs to be analyzed, and using what
   *         fields/types
   */
  FieldAnalysisRequest resolveAnalysisRequest(SolrQueryRequest req) {
    SolrParams solrParams = req.getParams();
    FieldAnalysisRequest analysisRequest = new FieldAnalysisRequest();


    boolean useDefaultSearchField = true;
    if (solrParams.get(AnalysisParams.FIELD_TYPE) != null) {
      analysisRequest.setFieldTypes(Arrays.asList(solrParams.get(AnalysisParams.FIELD_TYPE).split(",")));
      useDefaultSearchField = false;
    }
    if (solrParams.get(AnalysisParams.FIELD_NAME) != null) {
      analysisRequest.setFieldNames(Arrays.asList(solrParams.get(AnalysisParams.FIELD_NAME).split(",")));
      useDefaultSearchField = false;
    }
    if (useDefaultSearchField)  {
      analysisRequest.addFieldName(req.getSchema().getDefaultSearchFieldName());
    }
    analysisRequest.setQuery(solrParams.get(AnalysisParams.QUERY, solrParams.get(CommonParams.Q)));


    String value = solrParams.get(AnalysisParams.FIELD_VALUE);


    Iterable<ContentStream> streams = req.getContentStreams();
    if (streams != null) {
      // NOTE: Only the first content stream is currently processed
      for (ContentStream stream : streams) {
        Reader reader = null;
        try {
          reader = stream.getReader();
          value = IOUtils.toString(reader);
        } catch (IOException e) {
          // do nothing, leave value set to the request parameter
        }
        finally {
          IOUtils.closeQuietly(reader);
        }
        break;
      }
    }


    analysisRequest.setFieldValue(value);
    analysisRequest.setShowMatch(solrParams.getBool(AnalysisParams.SHOW_MATCH, false));
    return analysisRequest;
  }

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