List of usage examples for org.apache.solr.client.solrj.impl CloudSolrClient STATE_VERSION
String STATE_VERSION
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From source file:org.vootoo.server.RequestProcesser.java
License:Apache License
public void handleRequest(RequestGetter requestGetter) { MDCLoggingContext.reset();//w ww . j a va 2 s . c o m MDCLoggingContext.setNode(cores); String path = requestGetter.getPath(); solrParams = requestGetter.getSolrParams(); SolrRequestHandler handler = null; String corename = ""; String origCorename = null; try { // set a request timer which can be reused by requests if needed //req.setAttribute(SolrRequestParsers.REQUEST_TIMER_SERVLET_ATTRIBUTE, new RTimer()); // put the core container in request attribute //req.setAttribute("org.apache.solr.CoreContainer", cores); // check for management path String alternate = cores.getManagementPath(); if (alternate != null && path.startsWith(alternate)) { path = path.substring(0, alternate.length()); } // unused feature ? int idx = path.indexOf(':'); if (idx > 0) { // save the portion after the ':' for a 'handler' path parameter path = path.substring(0, idx); } boolean usingAliases = false; List<String> collectionsList = null; // Check for container handlers handler = cores.getRequestHandler(path); if (handler != null) { solrReq = parseSolrQueryRequest(SolrRequestParsers.DEFAULT, requestGetter); handleAdminRequest(handler, solrReq); return; } else { //otherwise, we should find a core from the path idx = path.indexOf("/", 1); if (idx > 1) { // try to get the corename as a request parameter first corename = path.substring(1, idx); // look at aliases if (cores.isZooKeeperAware()) { origCorename = corename; ZkStateReader reader = cores.getZkController().getZkStateReader(); aliases = reader.getAliases(); if (aliases != null && aliases.collectionAliasSize() > 0) { usingAliases = true; String alias = aliases.getCollectionAlias(corename); if (alias != null) { collectionsList = StrUtils.splitSmart(alias, ",", true); corename = collectionsList.get(0); } } } core = cores.getCore(corename); if (core != null) { path = path.substring(idx); } } //add collection name if (core == null && StringUtils.isNotBlank(requestGetter.getCollection())) { corename = requestGetter.getCollection(); core = cores.getCore(corename); } if (core == null) { if (!cores.isZooKeeperAware()) { core = cores.getCore(""); } } } if (core == null && cores.isZooKeeperAware()) { // we couldn't find the core - lets make sure a collection was not specified instead core = getCoreByCollection(cores, corename); if (core != null) { // we found a core, update the path path = path.substring(idx); } // try the default core if (core == null) { core = cores.getCore(""); if (core != null) { } } } // With a valid core... if (core != null) { MDCLoggingContext.setCore(core); final SolrConfig config = core.getSolrConfig(); // get or create/cache the parser for the core SolrRequestParsers parser = config.getRequestParsers(); // Determine the handler from the url path if not set // (we might already have selected the cores handler) if (handler == null && path.length() > 1) { // don't match "" or "/" as valid path handler = core.getRequestHandler(path); if (handler == null) { //may be a restlet path // Handle /schema/* paths via Restlet if (path.equals("/schema") || path.startsWith("/schema/")) { throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "unsupport /schema/**, use http solr"); } } // no handler yet but allowed to handle select; let's check if (handler == null && parser.isHandleSelect()) { if ("/select".equals(path) || "/select/".equals(path)) { solrReq = parseSolrQueryRequest(parser, requestGetter); invalidStates = checkStateIsValid(cores, solrReq.getParams().get(CloudSolrClient.STATE_VERSION)); String qt = solrReq.getParams().get(CommonParams.QT); handler = core.getRequestHandler(qt); if (handler == null) { throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "unknown handler: " + qt); } if (qt != null && qt.startsWith("/") && (handler instanceof ContentStreamHandlerBase)) { //For security reasons it's a bad idea to allow a leading '/', ex: /select?qt=/update see SOLR-3161 //There was no restriction from Solr 1.4 thru 3.5 and it's not supported for update handlers. throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "Invalid Request Handler ('qt'). Do not use /select to access: " + qt); } } } } // With a valid handler and a valid core... if (handler != null) { // if not a /select, create the request if (solrReq == null) { solrReq = parseSolrQueryRequest(parser, requestGetter); } if (usingAliases) { processAliases(solrReq, aliases, collectionsList); } SolrQueryResponse solrRsp = new SolrQueryResponse(); SolrRequestInfo.setRequestInfo(new SolrRequestInfo(solrReq, solrRsp)); this.execute(handler, solrReq, solrRsp); QueryResponseWriter responseWriter = core.getQueryResponseWriter(solrReq); if (invalidStates != null) solrReq.getContext().put(CloudSolrClient.STATE_VERSION, invalidStates); writeResponse(solrRsp, responseWriter, solrReq); return; // we are done with a valid handler } } logger.debug("no handler or core retrieved for {}, follow through...", path); throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "no handler or core retrieved for " + path); } catch (Throwable ex) { sendError(core, solrReq, ex); // walk the the entire cause chain to search for an Error Throwable t = ex; while (t != null) { if (t instanceof Error) { if (t != ex) { logger.error( "An Error was wrapped in another exception - please report complete stacktrace on SOLR-6161", ex); } throw (Error) t; } t = t.getCause(); } return; } finally { try { if (solrReq != null) { logger.debug("Closing out SolrRequest: {}", solrReq); solrReq.close(); } } finally { try { if (core != null) { core.close(); } } finally { SolrRequestInfo.clearRequestInfo(); } } MDCLoggingContext.clear(); } }
From source file:org.vootoo.server.RequestProcesser.java
License:Apache License
protected void writeResponse(SolrQueryResponse solrRsp, QueryResponseWriter responseWriter, SolrQueryRequest solrReq) throws IOException { Object invalidStates = solrReq.getContext().get(CloudSolrClient.STATE_VERSION); //This is the last item added to the applyResult and the client would expect it that way. //If that assumption is changed , it would fail. This is done to avoid an O(n) scan on // the applyResult for each request if (invalidStates != null) solrRsp.add(CloudSolrClient.STATE_VERSION, invalidStates); // Now write it out final String ct = responseWriter.getContentType(solrReq, solrRsp); // don't call setContentType on null if (null != ct) { responseSetter.setContentType(ct); }/*from www . j a v a 2 s. c o m*/ if (solrRsp.getException() != null) { NamedList info = new SimpleOrderedMap(); int code = ResponseUtils.getErrorInfo(solrRsp.getException(), info, logger); //solrRsp.add("error", info); // use protocol response exception instead of set 'error' response return to client, responseSetter.setSolrResponseException(code, info); } QueryResponseWriterUtil.writeQueryResponse(responseSetter.getResponseOutputStream(), responseWriter, solrReq, solrRsp, ct); //fire QueryResponse write Complete responseSetter.writeQueryResponseComplete(solrRsp); }