2b443ba887
Summary: implemented a commond line shell to talk with leveldb thrift server, which is based on state pattern and can be easily extended. Test Plan: build and run Reviewers: dhruba, zshao, heyongqiang Differential Revision: https://reviews.facebook.net/D4713
105 lines
2.2 KiB
C++
105 lines
2.2 KiB
C++
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#include <iostream>
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#include <boost/shared_ptr.hpp>
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#include "ShellContext.h"
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#include "ShellState.h"
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#include "thrift/lib/cpp/protocol/TBinaryProtocol.h"
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#include "thrift/lib/cpp/transport/TSocket.h"
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#include "thrift/lib/cpp/transport/TTransportUtils.h"
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using namespace std;
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using namespace boost;
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using namespace Tleveldb;
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using namespace leveldb;
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using namespace apache::thrift::protocol;
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using namespace apache::thrift::transport;
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void ShellContext::changeState(ShellState * pState) {
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pShellState_ = pState;
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}
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void ShellContext::stop(void) {
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exit_ = true;
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}
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bool ShellContext::ParseInput(void) {
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if(argc_ != 3) {
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printf("leveldb_shell host port\n");
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return false;
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}
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port_ = atoi(argv_[2]);
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if(port_ <= 0) {
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printf("Error while parse port : %s\n", argv_[2]);
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return false;
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}
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clientProxy_.reset(new DBClientProxy(argv_[1], port_));
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if(!clientProxy_.get()) {
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return false;
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} else {
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return true;
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}
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}
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void ShellContext::connect(void) {
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clientProxy_->connect();
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}
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void ShellContext::create(const string & db) {
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if (clientProxy_->create(db)) {
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printf("%s created\n", db.c_str());
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}
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}
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void ShellContext::get(const string & db,
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const string & key) {
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string v;
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if (clientProxy_->get(db, key, v)) {
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printf("%s\n", v.c_str());
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}
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}
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void ShellContext::put(const string & db,
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const string & key,
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const string & value) {
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if (clientProxy_->put(db, key, value)) {
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printf("(%s, %s) has been set\n", key.c_str(), value.c_str());
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}
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}
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void ShellContext::scan(const string & db,
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const string & start_key,
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const string & end_key,
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const string & limit) {
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vector<pair<string, string> > kvs;
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if (clientProxy_->scan(db, start_key, end_key, limit, kvs)) {
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for(unsigned int i = 0; i < kvs.size(); ++i) {
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printf("%d (%s, %s)\n", i, kvs[i].first.c_str(), kvs[i].second.c_str());
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}
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}
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}
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void ShellContext::run(void) {
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while(!exit_) {
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pShellState_->run(this);
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}
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}
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ShellContext::ShellContext(int argc, char ** argv) :
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pShellState_(ShellStateStart::getInstance()),
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exit_(false),
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argc_(argc),
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argv_(argv),
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port_(-1),
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clientProxy_() {
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}
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