fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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360 lines
8.4 KiB
360 lines
8.4 KiB
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef THRIFT_PROTOCOL_TDEBUGPROTOCOL_H
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#define THRIFT_PROTOCOL_TDEBUGPROTOCOL_H
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#include "thrift/lib/cpp/protocol/TVirtualProtocol.h"
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#include <boost/shared_ptr.hpp>
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namespace apache { namespace thrift { namespace protocol {
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/*
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!!! EXPERIMENTAL CODE !!!
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This protocol is very much a work in progress.
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It doesn't handle many cases properly.
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It throws exceptions in many cases.
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It probably segfaults in many cases.
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Bug reports and feature requests are welcome.
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Complaints are not. :R
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*/
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/**
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* Protocol that prints the payload in a nice human-readable format.
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* Reading from this protocol is not supported.
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*
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*/
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class TDebugProtocol : public TVirtualProtocol<TDebugProtocol> {
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private:
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enum write_state_t
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{ UNINIT
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, STRUCT
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, LIST
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, SET
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, MAP_KEY
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, MAP_VALUE
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};
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public:
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TDebugProtocol(boost::shared_ptr<TTransport> trans)
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: TVirtualProtocol<TDebugProtocol>(trans)
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, trans_(trans.get())
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, string_limit_(DEFAULT_STRING_LIMIT)
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, string_prefix_size_(DEFAULT_STRING_PREFIX_SIZE)
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{
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write_state_.push_back(UNINIT);
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}
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static const int32_t DEFAULT_STRING_LIMIT = 256;
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static const int32_t DEFAULT_STRING_PREFIX_SIZE = 16;
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void setStringSizeLimit(int32_t string_limit) {
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string_limit_ = string_limit;
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}
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void setStringPrefixSize(int32_t string_prefix_size) {
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string_prefix_size_ = string_prefix_size;
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}
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uint32_t writeMessageBegin(const std::string& name,
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const TMessageType messageType,
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const int32_t seqid);
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uint32_t writeMessageEnd();
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uint32_t writeStructBegin(const char* name);
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uint32_t writeStructEnd();
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uint32_t writeFieldBegin(const char* name,
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const TType fieldType,
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const int16_t fieldId);
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uint32_t writeFieldEnd();
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uint32_t writeFieldStop();
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uint32_t writeMapBegin(const TType keyType,
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const TType valType,
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const uint32_t size);
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uint32_t writeMapEnd();
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uint32_t writeListBegin(const TType elemType,
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const uint32_t size);
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uint32_t writeListEnd();
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uint32_t writeSetBegin(const TType elemType,
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const uint32_t size);
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uint32_t writeSetEnd();
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uint32_t writeBool(const bool value);
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uint32_t writeByte(const int8_t byte);
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uint32_t writeI16(const int16_t i16);
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uint32_t writeI32(const int32_t i32);
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uint32_t writeI64(const int64_t i64);
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uint32_t writeDouble(const double dub);
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uint32_t writeString(const std::string& str);
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template <class StrType>
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uint32_t writeString(const StrType& str) {
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return writeString(std::string(str.data(), str.size()));
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}
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uint32_t writeBinary(const std::string& str);
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private:
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void indentUp();
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void indentDown();
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uint32_t writePlain(const std::string& str);
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uint32_t writeIndented(const std::string& str);
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uint32_t startItem();
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uint32_t endItem();
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uint32_t writeItem(const std::string& str);
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static std::string fieldTypeName(TType type);
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TTransport* trans_;
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int32_t string_limit_;
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int32_t string_prefix_size_;
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std::string indent_str_;
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static const int indent_inc = 2;
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std::vector<write_state_t> write_state_;
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std::vector<int> list_idx_;
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};
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/**
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* Constructs debug protocol handlers
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*/
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class TDebugProtocolFactory : public TProtocolFactory {
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public:
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TDebugProtocolFactory() {}
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virtual ~TDebugProtocolFactory() {}
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boost::shared_ptr<TProtocol> getProtocol(boost::shared_ptr<TTransport> trans) {
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return boost::shared_ptr<TProtocol>(new TDebugProtocol(trans));
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}
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};
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}}} // apache::thrift::protocol
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// TODO(dreiss): Move (part of) ThriftDebugString into a .cpp file and remove this.
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#include "thrift/lib/cpp/transport/TBufferTransports.h"
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namespace apache { namespace thrift {
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template <typename T>
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struct ThriftTypeTraits {
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static const apache::thrift::protocol::TType fieldType_ =
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apache::thrift::protocol::TType(99);
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};
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template<>
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struct ThriftTypeTraits<bool> {
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static const apache::thrift::protocol::TType fieldType_ =
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apache::thrift::protocol::T_BOOL;
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};
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template<>
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struct ThriftTypeTraits<int8_t> {
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static const apache::thrift::protocol::TType fieldType_ =
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apache::thrift::protocol::T_I08;
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};
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template<>
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struct ThriftTypeTraits<int16_t> {
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static const apache::thrift::protocol::TType fieldType_ =
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apache::thrift::protocol::T_I16;
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};
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template<>
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struct ThriftTypeTraits<int32_t> {
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static const apache::thrift::protocol::TType fieldType_ =
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apache::thrift::protocol::T_I32;
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};
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template<>
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struct ThriftTypeTraits<int64_t> {
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static const apache::thrift::protocol::TType fieldType_ =
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apache::thrift::protocol::T_I64;
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};
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template<>
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struct ThriftTypeTraits<double> {
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static const apache::thrift::protocol::TType fieldType_ =
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apache::thrift::protocol::T_DOUBLE;
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};
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template<>
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struct ThriftTypeTraits<std::string> {
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static const apache::thrift::protocol::TType fieldType_ =
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apache::thrift::protocol::T_STRING;
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};
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class TDebugProtocolEx : public apache::thrift::protocol::TDebugProtocol {
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public:
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TDebugProtocolEx(
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boost::shared_ptr<apache::thrift::protocol::TTransport> trans
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)
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: TDebugProtocol(trans) {
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}
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template<typename T>
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void write(const T& t) {
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t.write(this);
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}
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template<typename T>
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void write(const std::vector<T>& c) {
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writeListBegin(ThriftTypeTraits<T>::fieldType_, c.size());
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typeof(c.begin()) it = c.begin();
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for (; it != c.end(); it++) {
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write(*it);
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}
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writeListEnd();
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}
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template<typename K, typename V>
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void write(const std::map<K, V>& c) {
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writeMapBegin(
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ThriftTypeTraits<K>::fieldType_,
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ThriftTypeTraits<V>::fieldType_,
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c.size()
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);
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typeof(c.begin()) it = c.begin();
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for (; it != c.end(); it++) {
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write(it->first);
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write(it->second);
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}
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writeMapEnd();
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}
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template<typename K, typename V>
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void write(const std::multimap<K, V>& c) {
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writeMapBegin(
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ThriftTypeTraits<K>::fieldType_,
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ThriftTypeTraits<V>::fieldType_,
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c.size()
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);
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typeof(c.begin()) it = c.begin();
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for (; it != c.end(); it++) {
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write(it->first);
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write(it->second);
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}
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writeMapEnd();
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}
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template<typename T>
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void write(const std::set<T>& c) {
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writeSetBegin(
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ThriftTypeTraits<T>::fieldType_,
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c.size()
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);
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typeof(c.begin()) it = c.begin();
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for (; it != c.end(); it++) {
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write(*it);
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}
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writeSetEnd();
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}
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void write(const bool value) {
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writeBool(value);
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}
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void write(const int8_t byte) {
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writeByte(byte);
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}
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void write(const int16_t i16) {
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writeI16(i16);
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}
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void write(const int32_t i32) {
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writeI32(i32);
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}
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void write(const int64_t i64) {
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writeI64(i64);
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}
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void write(const double dub) {
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writeDouble(dub);
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}
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void write(const std::string& str) {
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writeString(str);
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}
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template<typename K, typename V>
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void write(const std::pair<K, V>& p) {
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writeStructBegin("pair");
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writeFieldBegin("first", ThriftTypeTraits<K>::fieldType_, 1);
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write(p.first);
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writeFieldEnd();
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writeFieldBegin("second", ThriftTypeTraits<V>::fieldType_, 2);
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write(p.second);
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writeFieldEnd();
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writeStructEnd();
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}
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};
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template<typename T>
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std::string ThriftDebugString(const T& ts) {
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using namespace apache::thrift::transport;
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using namespace apache::thrift::protocol;
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TMemoryBuffer* buffer = new TMemoryBuffer;
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boost::shared_ptr<TTransport> trans(buffer);
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TDebugProtocolEx protocol(trans);
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protocol.write(ts);
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uint8_t* buf;
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uint32_t size;
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buffer->getBuffer(&buf, &size);
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return std::string((char*)buf, (unsigned int)size);
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}
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}} // apache::thrift
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#endif // #ifndef _THRIFT_PROTOCOL_TDEBUGPROTOCOL_H_
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