public void processGetVersions(ResponseBuilder rb) throws IOException { SolrQueryRequest req = rb.req; SolrQueryResponse rsp = rb.rsp; SolrParams params = req.getParams(); if (!params.getBool(COMPONENT_NAME, true)) { return; } int nVersions = params.getInt("getVersions", -1); if (nVersions == -1) return; String sync = params.get("sync"); if (sync != null) { processSync(rb, nVersions, sync); return; } UpdateLog ulog = req.getCore().getUpdateHandler().getUpdateLog(); if (ulog == null) return; UpdateLog.RecentUpdates recentUpdates = ulog.getRecentUpdates(); try { rb.rsp.add("versions", recentUpdates.getVersions(nVersions)); } finally { recentUpdates.close(); // cache this somehow? } }
public void processGetUpdates(ResponseBuilder rb) throws IOException { SolrQueryRequest req = rb.req; SolrQueryResponse rsp = rb.rsp; SolrParams params = req.getParams(); if (!params.getBool(COMPONENT_NAME, true)) { return; } String versionsStr = params.get("getUpdates"); if (versionsStr == null) return; UpdateLog ulog = req.getCore().getUpdateHandler().getUpdateLog(); if (ulog == null) return; List<String> versions = StrUtils.splitSmart(versionsStr, ",", true); List<Object> updates = new ArrayList<Object>(versions.size()); long minVersion = Long.MAX_VALUE; // TODO: get this from cache instead of rebuilding? UpdateLog.RecentUpdates recentUpdates = ulog.getRecentUpdates(); try { for (String versionStr : versions) { long version = Long.parseLong(versionStr); try { Object o = recentUpdates.lookup(version); if (o == null) continue; if (version > 0) { minVersion = Math.min(minVersion, version); } // TODO: do any kind of validation here? updates.add(o); } catch (SolrException e) { log.warn("Exception reading log for updates", e); } catch (ClassCastException e) { log.warn("Exception reading log for updates", e); } } // Must return all delete-by-query commands that occur after the first add requested // since they may apply. updates.addAll(recentUpdates.getDeleteByQuery(minVersion)); rb.rsp.add("updates", updates); } finally { recentUpdates.close(); // cache this somehow? } }