protocol-buffers

问题 I have a gRPC client (in Java) sending requests to a server (written in Python). I need to enable both request compression and response compression. There is good documentation on how to enable compression on the client side. I have managed to compress the request like so: response = blockingStub.withCompression("gzip").method(request) However, I cannot find any documentation on how to compress the server response (also). It seems that there is almost no documentation (or examples) on how to

问题 Getting started with protobuf in python I face a strange issue: a simple message proto definition is: syntax = "proto3"; package test; message Message { string message = 1; string sender = 2; } generated via protoc -I . --python_out=generated message.proto and accessed in Python like: from generated.message_pb2 import Message Then I can construct a message m = Message() m.sender = 'foo' m.message = 'bar' print(str(m)) but de-serializing will not return a result s_m = m.SerializeToString()

问题 I'm trying to run a simple pipeline on local cluster using Protocol Buffer to pass data between Beam functions. The com.google.protobuf:protobuf-java is included in FatJar. Everything works fine if I run it through: java -jar target/dataflow-test-1.0-SNAPSHOT.jar \ --runner=org.apache.beam.runners.flink.FlinkRunner \ --input=/tmp/kinglear.txt --output=/tmp/wordcounts.txt But it fails when trying to run on flink cluster: flink run target/dataflow-test-1.0-SNAPSHOT.jar \ --runner=org.apache

问题 I'm using protobuf-net lib with protobuf-net memcache provider and I'm trying to use memcache append function: var data = new ArraySegment<byte>(Encoding.UTF8.GetBytes("appendedString")); var result = _memcache.ExecuteStore(StoreMode.Add, key, data); And it throws exception: The runtime has encountered a fatal error. The address of the error was at 0x63765a43, on thread 0xd58. The error code is 0xc0000005. This error may be a bug in the CLR or in the unsafe or non-verifiable portions of user

问题 In Java BigDecimal class contains values as A*pow(10,B) where A is 2's complement which non-fix bit length and B is 32bit integer. In C# Decimal contains values as pow (–1,s) × c × pow(10,-e) where the sign s is 0 or 1, the coefficient c is given by 0 ≤ c < pow(2,96) , and the scale e is such that 0 ≤ e ≤ 28 . And i want to convert Java BigDecimal to Something like c# Decimal in JAVA. Can you help me . I have some thing like this class CS_likeDecimal { private int hi;// for 32bit most

问题 In Java BigDecimal class contains values as A*pow(10,B) where A is 2's complement which non-fix bit length and B is 32bit integer. In C# Decimal contains values as pow (–1,s) × c × pow(10,-e) where the sign s is 0 or 1, the coefficient c is given by 0 ≤ c < pow(2,96) , and the scale e is such that 0 ≤ e ≤ 28 . And i want to convert Java BigDecimal to Something like c# Decimal in JAVA. Can you help me . I have some thing like this class CS_likeDecimal { private int hi;// for 32bit most

问题 I have the following plugin in my pom.xml , which is supposed to generate java files required for the compilation of other projects: <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.2</version> <configuration> <source>${jdk.version}</source> <target>${jdk.version}</target> </configuration> </plugin> <plugin> <groupId>org.apache.felix</groupId> <artifactId>maven-bundle-plugin</artifactId> <extensions>true</extensions> <configuration> <archive> <manifestFile>META-INF/MANIFEST

问题 I have a char *buffer which I convert to a C++ string std::string sbuffer(buffer); because I want to pass it to python. C++ can work with: protoObj.ParseFromArray(buffer, sbuffer.size()); I pass the buffer to python via: py::scoped_interpreter python; py::module calc = py::module::import("Calculation"); py::object Calculation = calc.attr("Calculation"); py::object calculation = Calculation(); calculation.attr("funcName")(sbuffer.data(), sbuffer.size()); The python file looks kinda like this:

问题 I get this error when I try to load using pip install mysql-connector. I tried pip install Protobuf too but no solution. # Python architecture: 64-bit # Python ARCH_64BIT: True Unable to find Protobuf include directory. 回答1: I found this useful: pip install mysql-connector==2.1.4 is obsolete. pip install mysql-connector-python is suggested. 回答2: The official package name of MySQL Connector for Python is mysql-connector-python : pip install mysql-connector-python And mysql-connector is a fork

问题 I get this error when I try to load using pip install mysql-connector. I tried pip install Protobuf too but no solution. # Python architecture: 64-bit # Python ARCH_64BIT: True Unable to find Protobuf include directory. 回答1: I found this useful: pip install mysql-connector==2.1.4 is obsolete. pip install mysql-connector-python is suggested. 回答2: The official package name of MySQL Connector for Python is mysql-connector-python : pip install mysql-connector-python And mysql-connector is a fork