249 lines
8.7 KiB
C++
249 lines
8.7 KiB
C++
/*
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* TenantGroupCommands.actor.cpp
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*
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* This source file is part of the FoundationDB open source project
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*
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* Copyright 2013-2022 Apple Inc. and the FoundationDB project authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "fdbcli/fdbcli.actor.h"
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#include "fdbclient/FDBOptions.g.h"
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#include "fdbclient/GenericManagementAPI.actor.h"
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#include "fdbclient/IClientApi.h"
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#include "fdbclient/Knobs.h"
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#include "fdbclient/ManagementAPI.actor.h"
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#include "fdbclient/TenantManagement.actor.h"
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#include "fdbclient/Schemas.h"
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#include "flow/Arena.h"
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#include "flow/FastRef.h"
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#include "flow/ThreadHelper.actor.h"
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#include "metacluster/Metacluster.h"
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#include "flow/actorcompiler.h" // This must be the last #include.
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namespace fdb_cli {
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template <class TenantGroupEntryImpl>
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void tenantGroupListOutput(std::vector<std::pair<TenantGroupName, TenantGroupEntryImpl>> tenantGroups, int tokensSize) {
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if (tenantGroups.empty()) {
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if (tokensSize == 2) {
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fmt::print("The cluster has no tenant groups\n");
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} else {
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fmt::print("The cluster has no tenant groups in the specified range\n");
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}
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}
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int index = 0;
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for (auto tenantGroup : tenantGroups) {
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fmt::print(" {}. {}\n", ++index, printable(tenantGroup.first));
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}
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}
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// tenantgroup list command
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ACTOR Future<bool> tenantGroupListCommand(Reference<IDatabase> db, std::vector<StringRef> tokens) {
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if (tokens.size() > 5) {
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fmt::print("Usage: tenantgroup list [BEGIN] [END] [LIMIT]\n\n");
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fmt::print("Lists the tenant groups in a cluster.\n");
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fmt::print("Only tenant groups in the range BEGIN - END will be printed.\n");
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fmt::print("An optional LIMIT can be specified to limit the number of results (default 100).\n");
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return false;
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}
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state StringRef beginTenantGroup = ""_sr;
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state StringRef endTenantGroup = "\xff\xff"_sr;
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state int limit = 100;
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if (tokens.size() >= 3) {
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beginTenantGroup = tokens[2];
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}
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if (tokens.size() >= 4) {
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endTenantGroup = tokens[3];
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if (endTenantGroup <= beginTenantGroup) {
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fmt::print(stderr, "ERROR: end must be larger than begin");
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return false;
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}
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}
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if (tokens.size() == 5) {
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int n = 0;
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if (sscanf(tokens[4].toString().c_str(), "%d%n", &limit, &n) != 1 || n != tokens[4].size() || limit <= 0) {
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fmt::print(stderr, "ERROR: invalid limit `{}'\n", tokens[4].toString());
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return false;
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}
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}
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state Reference<ITransaction> tr = db->createTransaction();
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loop {
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try {
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tr->setOption(FDBTransactionOptions::READ_SYSTEM_KEYS);
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state ClusterType clusterType = wait(TenantAPI::getClusterType(tr));
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if (clusterType == ClusterType::METACLUSTER_MANAGEMENT) {
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std::vector<std::pair<TenantGroupName, metacluster::MetaclusterTenantGroupEntry>>
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metaclusterTenantGroups =
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wait(metacluster::listTenantGroupsTransaction(tr, beginTenantGroup, endTenantGroup, limit));
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tenantGroupListOutput(metaclusterTenantGroups, tokens.size());
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} else {
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std::vector<std::pair<TenantGroupName, TenantGroupEntry>> tenantGroups =
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wait(TenantAPI::listTenantGroupsTransaction(tr, beginTenantGroup, endTenantGroup, limit));
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tenantGroupListOutput(tenantGroups, tokens.size());
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}
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return true;
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} catch (Error& e) {
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wait(safeThreadFutureToFuture(tr->onError(e)));
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}
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}
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}
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void tenantGroupGetOutput(metacluster::MetaclusterTenantGroupEntry entry, bool useJson) {
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if (useJson) {
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json_spirit::mObject resultObj;
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resultObj["tenant_group"] = entry.toJson();
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resultObj["type"] = "success";
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fmt::print("{}\n", json_spirit::write_string(json_spirit::mValue(resultObj), json_spirit::pretty_print));
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} else {
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fmt::print(" assigned cluster: {}\n", printable(entry.assignedCluster));
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}
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}
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void tenantGroupGetOutput(TenantGroupEntry entry, bool useJson) {
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if (useJson) {
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json_spirit::mObject resultObj;
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resultObj["tenant_group"] = entry.toJson();
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resultObj["type"] = "success";
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fmt::print("{}\n", json_spirit::write_string(json_spirit::mValue(resultObj), json_spirit::pretty_print));
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} else {
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// This is a placeholder output for when a tenant group is read in a non-metacluster, where
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// it currently has no metadata. When metadata is eventually added, we can print that instead.
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fmt::print("The tenant group is present in the cluster\n");
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}
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}
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// tenantgroup get command
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ACTOR Future<bool> tenantGroupGetCommand(Reference<IDatabase> db, std::vector<StringRef> tokens) {
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if (tokens.size() > 4 || tokens.size() < 3 || (tokens.size() == 4 && tokens[3] != "JSON"_sr)) {
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fmt::print("Usage: tenantgroup get <NAME> [JSON]\n\n");
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fmt::print("Prints metadata associated with the given tenant group.\n");
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fmt::print("If JSON is specified, then the output will be in JSON format.\n");
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return false;
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}
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state bool useJson = tokens.size() == 4;
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state Reference<ITransaction> tr = db->createTransaction();
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loop {
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try {
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tr->setOption(FDBTransactionOptions::READ_SYSTEM_KEYS);
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state ClusterType clusterType = wait(TenantAPI::getClusterType(tr));
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if (clusterType == ClusterType::METACLUSTER_MANAGEMENT) {
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state Optional<metacluster::MetaclusterTenantGroupEntry> mEntry =
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wait(metacluster::tryGetTenantGroupTransaction(tr, tokens[2]));
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if (!mEntry.present()) {
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throw tenant_not_found();
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}
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tenantGroupGetOutput(mEntry.get(), useJson);
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} else {
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state Optional<TenantGroupEntry> entry = wait(TenantAPI::tryGetTenantGroupTransaction(tr, tokens[2]));
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if (!entry.present()) {
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throw tenant_not_found();
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}
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tenantGroupGetOutput(entry.get(), useJson);
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}
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return true;
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} catch (Error& e) {
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try {
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wait(safeThreadFutureToFuture(tr->onError(e)));
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} catch (Error& finalErr) {
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state std::string errorStr;
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if (finalErr.code() == error_code_tenant_not_found) {
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errorStr = "tenant group not found";
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} else if (useJson) {
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errorStr = finalErr.what();
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} else {
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throw finalErr;
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}
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if (useJson) {
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json_spirit::mObject resultObj;
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resultObj["type"] = "error";
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resultObj["error"] = errorStr;
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fmt::print("{}\n",
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json_spirit::write_string(json_spirit::mValue(resultObj), json_spirit::pretty_print));
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} else {
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fmt::print(stderr, "ERROR: {}\n", errorStr);
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}
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return false;
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}
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}
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}
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}
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// tenantgroup command
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Future<bool> tenantGroupCommand(Reference<IDatabase> db, std::vector<StringRef> tokens) {
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if (tokens.size() == 1) {
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printUsage(tokens[0]);
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return true;
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} else if (tokencmp(tokens[1], "list")) {
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return tenantGroupListCommand(db, tokens);
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} else if (tokencmp(tokens[1], "get")) {
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return tenantGroupGetCommand(db, tokens);
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} else {
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printUsage(tokens[0]);
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return true;
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}
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}
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void tenantGroupGenerator(const char* text,
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const char* line,
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std::vector<std::string>& lc,
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std::vector<StringRef> const& tokens) {
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if (tokens.size() == 1) {
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const char* opts[] = { "list", "get", nullptr };
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arrayGenerator(text, line, opts, lc);
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} else if (tokens.size() == 3 && tokencmp(tokens[1], "get")) {
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const char* opts[] = { "JSON", nullptr };
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arrayGenerator(text, line, opts, lc);
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}
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}
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std::vector<const char*> tenantGroupHintGenerator(std::vector<StringRef> const& tokens, bool inArgument) {
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if (tokens.size() == 1) {
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return { "<list|get>", "[ARGS]" };
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} else if (tokencmp(tokens[1], "list") && tokens.size() < 5) {
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static std::vector<const char*> opts = { "[BEGIN]", "[END]", "[LIMIT]" };
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return std::vector<const char*>(opts.begin() + tokens.size() - 2, opts.end());
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} else if (tokencmp(tokens[1], "get") && tokens.size() < 4) {
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static std::vector<const char*> opts = { "<NAME>", "[JSON]" };
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return std::vector<const char*>(opts.begin() + tokens.size() - 2, opts.end());
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} else {
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return {};
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}
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}
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CommandFactory tenantGroupRegisterFactory("tenantgroup",
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CommandHelp("tenantgroup <list|get> [ARGS]",
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"view tenant group information",
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"`list' prints a list of tenant groups in the cluster.\n"
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"`get' prints the metadata for a particular tenant group.\n"),
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&tenantGroupGenerator,
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&tenantGroupHintGenerator);
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} // namespace fdb_cli
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