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Questions tagged [stream]

A stream is a series of data elements (characters, bytes or complex packets) which can be accessed or made accessible in a serial fashion. Random access is not possible.

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Avoid a stream() inside a stream() [closed]

I have the following code. ...
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1 vote
1 answer
53 views

Implemented Sorting of Map by Value and then by Key in java

So I had this requirement to get the frequency of names appearing in a list and then print the one appearing the most number of times. If there is a clash, print the one which comes first in the ...
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1 vote
1 answer
81 views

Chunk output into files, based on number of entries and total size

Below is my client code which stream all the customer URLs from a golang grpc server. It takes Request input parameter and streams customer URLs based on matching a ...
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  • 169
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1 answer
111 views

Basic Client/Server model using Unix signals

I've created a basic client/server model using user defined signals (SIGUSR1 representing bit 1 and SIGUSR2 for bit 0). At a ...
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0 votes
1 answer
84 views

check if two lists of objects have the same value of an attribute

I have two lists of objects localList and remoteList, both lists have a consent attribute I want to check the value of the consent attribute if the same for both lists. If not, I want to remove all ...
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  • 17
4 votes
3 answers
725 views

Find vowels count in each given country names using Java6 and Java8

I am trying to use Java8 for a piece of code which I had written in Java6 and am able to achieve the result using both the version of java but I am thinking there could be more better way to write the ...
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  • 143
1 vote
2 answers
72 views

Download and unzip an XML document

I am working on an integration software. I will need to download a list of products and import it into my website. The list of products will be downloaded from ...
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1 vote
1 answer
42 views

Stream that computes running median value

I was solving a DSA question, running median in a stream. And I decided to design my own stream class with additional features. ...
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1 vote
0 answers
14 views

Getting metadata out of a Shoutcast stream

I have written the following class used to get the metadata out of an internet radio station. It takes a Node Stream and transforms it to grab the metadata out of the mp3 stream and then removes the ...
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  • 111
2 votes
1 answer
96 views

C++ simple type serialization for streaming primitive- / pod types over a web socket (e.g. asio)

I am experimenting with asio web sockets and tried to write a simple serializer / deserializer. I am also thinking about an approach on how to serialize some type information alongside the actual data....
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  • 143
0 votes
3 answers
139 views

Luhn algorithm using Stream API

Example ...
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3 votes
2 answers
137 views

Streaming substrings of a string

Given a (long) string src, generate substrings (up to) len characters long on demand by iterating over ...
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3 votes
0 answers
116 views

How can I filter and sort LinkedList faster and more effective?I have list of orders that should be processed

I have method that fetches all orders from Database and filtering, sorting that data(I know better to do It by specific query to Database but I dont know how). I have Order entity that has following <...
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3 votes
1 answer
251 views

Conditional Output Streaming in C++

I stumbled into an idea for creating a simple class that would entirely avoid streaming of any data unless some condition is met. The idea here is that a ...
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1 vote
2 answers
725 views

How to append values into existed Vec with iterator

I have a Vec with value default [0], and then I want to append into the vec with an iterator which is read from stdin, now my code is not performant since I use an insert to shift all the values ...
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2 votes
0 answers
206 views

Reading stdout and stderr of a sub process using Win32, Overlapped I/O

I'm writing C++ Windows code that will start a process, then read its stdout and stderr, separately, into buffers. If I try to just read the streams one at a time it may hang if the child process is ...
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2 votes
0 answers
270 views

Read compressed XML file inside ZIP and parse data as fast as possible

I am trying to read and parse an XML file inside of a ZIP archive as fast as possible. The XML file is roughly 85GB in size, so I know for a fact that I/O also plays a role here, as I need to ...
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1 vote
1 answer
83 views

A Paragraph Merger with Removing Overlapped Duplicated Lines in C#

I am trying to make a paragraph merger that takes multiple paragraphs and output a concatenated result with removing the duplicated overlapped lines due to redundancy. Each input paragraph is with the ...
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  • 3,302
1 vote
1 answer
111 views

A Tiny Text File Read/Write class Implementation in C#

I am trying to implement a tiny text file read / write class FileIO in order to make the operations of reading / writing pure text files easily. The usage is like: <...
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  • 3,302
6 votes
3 answers
653 views

Beginner C fgetline() implementation

I am doing C coding practice by reinventing a getline function that works with any streams. Any comments on the overall code quality, including correctness, style ...
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  • 61
5 votes
1 answer
79 views

Filter out comments in Delphi source code

Today I am working on refactoring and documenting some ancient Delphi code. In that language, which is derived from Pascal, there are three forms of comments: ...
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1 vote
0 answers
597 views

NodeJS stream.Readable implementation to combine PCM audio streams

Edit: This has a bug that I didn't discover initially. I've opened an issue in the nodejs/help github. I'm not sure what that means for this post. I am creating a discord music playing bot using ...
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  • 153
3 votes
2 answers
708 views

Multiple filters and maps java stream

I need to find the odd occurring numbers as a list. For example the below list should give 1 and 2 as output. Is there a way that I can do it in a better way? ...
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1 vote
1 answer
37 views

Concise and exception-prone method for running method on component

I have a list of Components. When an actor is connected, I want to run onActorConnected on each component. However, if a ...
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3 votes
0 answers
254 views

Javascript / Go plug-and-play server-side WebRTC support for webcam streaming

I normally program in a linux vm and decided to do some machine learning with my webcam when I realized the vm didn't have access to my camera hardware. That kicked-off a mini project to create a plug-...
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  • 967
3 votes
3 answers
343 views

Produce the sum of all white space separated integers in a given file

How's my code? Works perfectly for what I'm trying to do :) ...
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3 votes
1 answer
312 views

LZW Compression Library

I wrote a library that implements LZW compression and decompression. A goal of this project was to help me acquaint myself with modern C++ development practices (I primarily come from a Java ...
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3 votes
2 answers
570 views

Set default value for remaining size of list by use of Java 8 and Stream

I have written a method which will return the size 16 List every time. If the input List has size less than 16, the remaining list object will be filled with default values.  Is there any way to ...
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8 votes
1 answer
939 views

Reading one source Stream by multiple consumers asynchronously

The problem was using single Stream from the HTTP response in multiple consumers simultaneously. For example: while data is loading, I want write it to the some ...
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2 votes
1 answer
878 views

Deserialise Json and Read Stream twice in C#

So this is a modern implementation of a HTTP client, trying to find a way to optimise/simplify this. Specifically the DeserializeAsync method with the GetStream and the compiler statement for if/debug ...
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  • 414
5 votes
2 answers
312 views

Sorting squares of an integer array

I had this question in an interview recently. Given a sorted array of integers, return a list of those integers squared, with the squares sorted. So given an array of these numbers: ...
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  • 309
4 votes
3 answers
1k views

Min heap without recursion

The code reads in integer array from user input and builds a minimum heap via an iterative scheme. Are there any edge cases in which this approach would fail? For the following test case/command ...
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3 votes
1 answer
89 views

Finding out the indices of common elements in two array lists having duplicate elements

I have two lists which are also having some duplicate elements , i am converting this list to map as key value pair with element index as the value for the key - element List 1 : [1, 2, 3, 4, 5, 6, ...
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2 votes
1 answer
83 views

Reading bytes between two quotes from a stream and decoding it to its appropriate character set [closed]

This is a component for a lexer which operates on a byte input stream that handles reading and decoding the contents of a string contained within double-quotes. The validity of the encoding is handled ...
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  • 239
5 votes
2 answers
81 views

Concisely, robustly, temporarily stashing c++ iostream formats

I got tired of the boilerplate and tedium restoring formatting context, so I made an RAII stasher that relies on the destroy-at-end-of-full-statement temporary semantics. With C++17 I can get it down ...
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  • 151
2 votes
1 answer
81 views

Chunking strings to binary block-based output

This is a follow up to Chunking strings to binary output I found the reviews quite helpful in pinpointing what to fix with my code. Here's the result of that update. The format of the output is the ...
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  • 64.1k
6 votes
1 answer
115 views

Custom manipulator for changing at what characters a std::istream split words

Introduction By default, input streams (e.g., std::cin or a std::istringstream) split words at space when using the ...
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  • 8,937
5 votes
2 answers
129 views

Chunking strings to binary output

A follow-up to this question is Chunking strings to binary block-based output I have code which takes a text file as input and creates a special binary output form of the input. Specifically, the ...
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  • 64.1k
3 votes
0 answers
337 views

PPE object detection with tensorflow and opencv with rtsp streams

I am working on an object detection API implemented in Tensorflow 1.14 and OpenCV 4.1, where my task is to recognize personal protection equipment (PPE) worn by workers at various construction site ...
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2 votes
4 answers
86 views

User Specified Array Read and Modify

How may this code be improved upon, the user inputs array of specified length and replaces each element that is smaller than the mean of the first and last element with the mean. Is there a better ...
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0 votes
1 answer
218 views

Compare two map objects and show relative information Java 8

I have 2 maps. First map consists of order in which a specific set of services is executed. Second map contains execution time each service took. I need to display this information. Following is my ...
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7 votes
2 answers
75 views

Skip input to next line, for reading serialized objects

I was de-serializing objects that had an extra newline that needed to be removed before getting the next object. ...
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  • 91.5k
4 votes
2 answers
80 views

Filtering product ids

As regarding the following question I have completed the code as below. But I am curious about other effective solutions. I am also curious about if there is any solution that could be applicable by ...
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0 votes
2 answers
112 views

Refactor method to Java 8

I have a method that iterate a list of maps if a certain element is found then set value of certain variables and break the loop. I'm trying to revamp this into Java 8. And further if it can be ...
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2 votes
1 answer
819 views

Get word frequency of a txt file and save it to linked list

I'm a novice in C++. I want to do three things: Get the number of lines in the file Get the number of total words in the file Get each frequency of each "unique ...
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  • 375
6 votes
4 answers
2k views

Make my XML Parser in Java using WoodStox run faster and use less memory, or just generally better

I have an XML Parser in Java using WoodStox that I wrote. This parser is going to be parsing through extremely large files, could be 5+GB. The goal of the parser is to convert a nest XML file into a ...
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1 vote
0 answers
788 views

HTTP Client - Best practices

I've made a HTTP client and would like some tips to improve my code, it's supposed to be built for xamarin forms but should work with any implementation. My goal of this project was to learn more ...
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  • 414
1 vote
1 answer
381 views

Ensuring file handle is closed in case of an exception [closed]

...
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  • 119
1 vote
1 answer
58 views

Image type convertion

So I have a piece a code that, altough it does what is expected, it doesn't seam very performant to me. I just wanted to know if there's a better way to do this or if my code is alright as it is. The ...
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2 votes
1 answer
54 views

Building a Map of Set using Java Streams

I wrote a collector that would take a stream of Map.Entry<Integer, MyObject> which I want to make into ...
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