353 lines
11 KiB
C++
353 lines
11 KiB
C++
#include "etcd/Client.hpp"
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#include "v3/include/AsyncRangeResponse.hpp"
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#include "v3/include/AsyncPutResponse.hpp"
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#include "v3/include/AsyncDelResponse.hpp"
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#include "v3/include/Utils.hpp"
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#include <iostream>
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#include "etcd/AsyncDeleteResponse.h"
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etcd::Client::Client(std::string const & address)
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: client(address), grpcClient(address)
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{
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}
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pplx::task<etcd::Response> etcd::Client::send_get_request(web::http::uri_builder & uri)
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{
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return Response::create(client.request(web::http::methods::GET, uri.to_string()));
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}
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pplx::task<etcd::Response> etcd::Client::send_del_request(web::http::uri_builder & uri)
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{
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return Response::create(client.request(web::http::methods::DEL, uri.to_string()));
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}
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pplx::task<etcd::Response> etcd::Client::send_put_request(web::http::uri_builder & uri, std::string const & key, std::string const & value)
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{
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std::string data = key + "=" + value;
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std::string content_type = "application/x-www-form-urlencoded; param=" + key;
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return Response::create(client.request(web::http::methods::PUT, uri.to_string(), data.c_str(), content_type.c_str()));
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}
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pplx::task<etcd::Response> etcd::Client::get(std::string const & key)
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{
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return send_asyncget(key);
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}
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pplx::task<etcd::Response> etcd::Client::set(std::string const & key, std::string const & value)
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{
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return send_asyncput(key,value);
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}
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pplx::task<etcd::Response> etcd::Client::add(std::string const & key, std::string const & value)
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{
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return send_asyncadd(key,value);
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}
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pplx::task<etcd::Response> etcd::Client::modify(std::string const & key, std::string const & value)
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{
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return send_asyncmodify(key,value);
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}
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pplx::task<etcd::Response> etcd::Client::modify_if(std::string const & key, std::string const & value, std::string const & old_value)
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{
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return send_asyncmodify_if(key, value, old_value);
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}
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pplx::task<etcd::Response> etcd::Client::modify_if(std::string const & key, std::string const & value, int old_index)
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{
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web::http::uri_builder uri("/v2/keys" + key);
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uri.append_query("prevIndex", old_index);
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return send_put_request(uri, "value", value);
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}
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//note: this one seems to not need the parseResponse() method
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pplx::task<etcd::Response> etcd::Client::removeEntryWithKey(std::string const & entryKey) {
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etcdv3::AsyncRangeResponse* resp = etcdv3::Utils::getKey(entryKey, grpcClient);
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if(!resp->reply.kvs_size())
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{
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std::cout << "nothing to delete" << std::endl;
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resp->error_code = 100;
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resp->error_message = "Nothing to delete";
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return Response::createResponse(*resp);
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}
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etcdserverpb::DeleteRangeRequest deleteRangeRequest;
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deleteRangeRequest.set_key(entryKey);
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etcdv3::AsyncDelResponse* call = new etcdv3::AsyncDelResponse("delete");
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//mano-mano
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call->prev_value = resp->reply.kvs(0);
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call->client = &grpcClient;
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call->key = entryKey;
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call->rpcInstance = grpcClient.stub_->AsyncDeleteRange(&call->context, deleteRangeRequest, &call->cq_);
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call->rpcInstance->Finish(&call->deleteResponse, &call->status, (void*)call);
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return Response::createResponse(*call);
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}
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pplx::task<etcd::Response> etcd::Client::rm(std::string const & key)
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{
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return removeEntryWithKey(key);
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}
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pplx::task<etcd::Response> etcd::Client::removeEntryWithKeyAndValue(std::string const &entryKey, std::string const &oldValue) {
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etcdv3::AsyncRangeResponse *searchResult = etcdv3::Utils::getKey(entryKey, grpcClient);
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if(!searchResult->reply.kvs_size()) {
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searchResult->error_code = 100;
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searchResult->error_message = "Key not Found";
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return Response::createResponse(*searchResult);
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}
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else if(searchResult->reply.kvs(0).value() != oldValue) {
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searchResult->error_code = 101;
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searchResult->error_message = "Compare failed";
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return Response::createResponse(*searchResult);
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}
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etcdserverpb::DeleteRangeRequest deleteRangeRequest;
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deleteRangeRequest.set_key(entryKey);
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etcdv3::AsyncDelResponse *deleteResponseCall = new etcdv3::AsyncDelResponse("compareAndDelete");
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deleteResponseCall->prev_value = searchResult->reply.kvs(0);
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deleteResponseCall->client = &grpcClient;
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deleteResponseCall->key = entryKey;
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deleteResponseCall->rpcInstance = grpcClient.stub_->AsyncDeleteRange(&deleteResponseCall->context, deleteRangeRequest, &deleteResponseCall->cq_);
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deleteResponseCall->rpcInstance->Finish(&deleteResponseCall->deleteResponse, &deleteResponseCall->status, (void*)deleteResponseCall);
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return Response::createResponse(*deleteResponseCall);
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}
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pplx::task<etcd::Response> etcd::Client::rm_if(std::string const & key, std::string const & old_value)
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{
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return removeEntryWithKeyAndValue(key, old_value);
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}
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pplx::task<etcd::Response> etcd::Client::removeEntryWithKeyAndIndex(std::string const &entryKey, int oldIndex) {
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etcdv3::AsyncRangeResponse *searchResult = etcdv3::Utils::getKey(entryKey, grpcClient);
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std::cout << "found revision in item is: " << searchResult->reply.kvs(0).create_revision() << std::endl;
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if(!searchResult->reply.kvs_size()) {
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searchResult->error_code = 100;
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searchResult->error_message = "Key not Found";
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return Response::createResponse(*searchResult);
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}
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else if(searchResult->reply.kvs(0).create_revision() != oldIndex) {
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searchResult->error_code = 101;
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searchResult->error_message = "Compare failed";
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return Response::createResponse(*searchResult);
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}
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etcdserverpb::DeleteRangeRequest deleteRangeRequest;
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deleteRangeRequest.set_key(entryKey);
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etcdv3::AsyncDelResponse *deleteResponseCall = new etcdv3::AsyncDelResponse("compareAndDelete");
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deleteResponseCall->prev_value = searchResult->reply.kvs(0);
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deleteResponseCall->client = &grpcClient;
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deleteResponseCall->key = entryKey;
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deleteResponseCall->rpcInstance = grpcClient.stub_->AsyncDeleteRange(&deleteResponseCall->context, deleteRangeRequest, &deleteResponseCall->cq_);
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deleteResponseCall->rpcInstance->Finish(&deleteResponseCall->deleteResponse, &deleteResponseCall->status, (void*)deleteResponseCall);
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return Response::createResponse(*deleteResponseCall);
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}
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pplx::task<etcd::Response> etcd::Client::rm_if(std::string const & key, int old_index)
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{
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return removeEntryWithKeyAndIndex(key, old_index);
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}
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pplx::task<etcd::Response> etcd::Client::mkdir(std::string const & key)
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{
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web::http::uri_builder uri("/v2/keys" + key);
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return send_put_request(uri, "dir", "true");
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}
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pplx::task<etcd::Response> etcd::Client::rmdir(std::string const & key, bool recursive)
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{
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web::http::uri_builder uri("/v2/keys" + key);
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uri.append_query("dir=true");
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if (recursive)
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uri.append_query("recursive=true");
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return send_del_request(uri);
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}
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pplx::task<etcd::Response> etcd::Client::ls(std::string const & key)
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{
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web::http::uri_builder uri("/v2/keys" + key);
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uri.append_query("sorted=true");
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return send_get_request(uri);
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}
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pplx::task<etcd::Response> etcd::Client::watch(std::string const & key, bool recursive)
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{
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web::http::uri_builder uri("/v2/keys" + key);
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uri.append_query("wait=true");
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if (recursive)
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uri.append_query("recursive=true");
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return send_get_request(uri);
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}
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pplx::task<etcd::Response> etcd::Client::watch(std::string const & key, int fromIndex, bool recursive)
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{
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web::http::uri_builder uri("/v2/keys" + key);
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uri.append_query("wait=true");
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uri.append_query("waitIndex", fromIndex);
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if (recursive)
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uri.append_query("recursive=true");
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return send_get_request(uri);
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}
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pplx::task<etcd::Response> etcd::Client::send_asyncadd(std::string const & key, std::string const & value)
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{
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//check if key already exist
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etcdv3::AsyncRangeResponse* resp = etcdv3::Utils::getKey(key, grpcClient);
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if(resp->reply.kvs_size())
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{
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resp->error_code=105;
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resp->error_message="Key already exists";
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return Response::createResponse(*resp);
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}
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PutRequest put_request;
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put_request.set_key(key);
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put_request.set_value(value);
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etcdv3::AsyncPutResponse* call= new etcdv3::AsyncPutResponse("create");
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//below 2 lines can be removed once we are able to use Txn
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call->client = &grpcClient;
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call->key = key;
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call->response_reader = grpcClient.stub_->AsyncPut(&call->context,put_request,&call->cq_);
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call->response_reader->Finish(&call->reply, &call->status, (void*)call);
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return Response::create(call);
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}
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pplx::task<etcd::Response> etcd::Client::send_asyncmodify_if(std::string const & key, std::string const & value, std::string const & old_value)
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{
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//check current key is equal to old_value
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etcdv3::AsyncRangeResponse* resp = etcdv3::Utils::getKey(key, grpcClient);
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if(!resp->reply.kvs_size())
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{
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resp->error_code=100;
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resp->error_message="Key not found";
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return Response::createResponse(*resp);
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}
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else
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{
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if(resp->reply.kvs(0).value() != old_value)
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{
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resp->error_code=101;
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resp->error_message="Compare failed";
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return Response::createResponse(*resp);
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}
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}
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PutRequest put_request;
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put_request.set_key(key);
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put_request.set_value(value);
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etcdv3::AsyncPutResponse* call= new etcdv3::AsyncPutResponse("compareAndSwap");
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//below 2 lines can be removed once we are able to use Txn
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call->prev_value = resp->reply.kvs(0);
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call->client = &grpcClient;
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call->key = key;
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call->response_reader = grpcClient.stub_->AsyncPut(&call->context,put_request,&call->cq_);
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call->response_reader->Finish(&call->reply, &call->status, (void*)call);
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return Response::create(call);
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}
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pplx::task<etcd::Response> etcd::Client::send_asyncmodify(std::string const & key, std::string const & value)
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{
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//check if key already exist
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etcdv3::AsyncRangeResponse* resp = etcdv3::Utils::getKey(key, grpcClient);
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if(!resp->reply.kvs_size())
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{
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resp->error_code=100;
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resp->error_message="Key not found";
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return Response::createResponse(*resp);
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}
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PutRequest put_request;
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put_request.set_key(key);
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put_request.set_value(value);
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etcdv3::AsyncPutResponse* call= new etcdv3::AsyncPutResponse("update");
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//below 2 lines can be removed once we are able to use Txn
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call->prev_value = resp->reply.kvs(0);
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call->client = &grpcClient;
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call->key = key;
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call->response_reader = grpcClient.stub_->AsyncPut(&call->context,put_request,&call->cq_);
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call->response_reader->Finish(&call->reply, &call->status, (void*)call);
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return Response::create(call);
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}
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pplx::task<etcd::Response> etcd::Client::send_asyncget(std::string const & key)
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{
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RangeRequest request;
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request.set_key(key);
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etcdv3::AsyncRangeResponse* call= new etcdv3::AsyncRangeResponse();
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call->response_reader = grpcClient.stub_->AsyncRange(&call->context,request,&call->cq_);
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call->response_reader->Finish(&call->reply, &call->status, (void*)call);
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return Response::create(call);
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}
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pplx::task<etcd::Response> etcd::Client::send_asyncput(std::string const & key, std::string const & value)
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{
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PutRequest put_request;
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put_request.set_key(key);
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put_request.set_value(value);
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etcdv3::AsyncPutResponse* call= new etcdv3::AsyncPutResponse("set");
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//get current value
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etcdv3::AsyncRangeResponse* resp = etcdv3::Utils::getKey(key, grpcClient);
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if(resp->reply.kvs_size())
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{
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call->prev_value = resp->reply.kvs(0);
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}
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call->client = &grpcClient;
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call->key = key;
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call->response_reader = grpcClient.stub_->AsyncPut(&call->context,put_request,&call->cq_);
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call->response_reader->Finish(&call->reply, &call->status, (void*)call);
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return Response::create(call);
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}
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