blynk-server | Things Platform aimed to simplify building mobile

 by   blynkkk Java Version: v0.41.17 License: GPL-3.0

kandi X-RAY | blynk-server Summary

blynk-server is a Java library typically used in Telecommunications, Media, Telecom, Internet of Things (IoT), Raspberry Pi, Arduino applications. blynk-server has build file available, it has a Strong Copyleft License and it has low support. However blynk-server has 108 bugs and it has 4 vulnerabilities. You can download it from GitHub.
Blynk is a platform with iOS and Android apps to control Arduino, ESP8266, Raspberry Pi and the likes over the Internet. You can easily build graphic interfaces for all your projects by simply dragging and dropping widgets. If you need more information, please follow these links:.
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                      kandi-support Support

                        summary
                        blynk-server has a low active ecosystem.
                        summary
                        It has 24 star(s) with 34 fork(s). There are 5 watchers for this library.
                        summary
                        It had no major release in the last 12 months.
                        summary
                        There are 11 open issues and 1334 have been closed. On average issues are closed in 518 days. There are 12 open pull requests and 0 closed requests.
                        summary
                        It has a neutral sentiment in the developer community.
                        summary
                        The latest version of blynk-server is v0.41.17
                        blynk-server Support
                          Best in #Java
                            Average in #Java
                            blynk-server Support
                              Best in #Java
                                Average in #Java

                                  kandi-Quality Quality

                                    summary
                                    blynk-server has 108 bugs (5 blocker, 1 critical, 55 major, 47 minor) and 1678 code smells.
                                    blynk-server Quality
                                      Best in #Java
                                        Average in #Java
                                        blynk-server Quality
                                          Best in #Java
                                            Average in #Java

                                              kandi-Security Security

                                                summary
                                                blynk-server has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
                                                summary
                                                blynk-server code analysis shows 4 unresolved vulnerabilities (0 blocker, 4 critical, 0 major, 0 minor).
                                                summary
                                                There are 57 security hotspots that need review.
                                                blynk-server Security
                                                  Best in #Java
                                                    Average in #Java
                                                    blynk-server Security
                                                      Best in #Java
                                                        Average in #Java

                                                          kandi-License License

                                                            summary
                                                            blynk-server is licensed under the GPL-3.0 License. This license is Strong Copyleft.
                                                            summary
                                                            Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.
                                                            blynk-server License
                                                              Best in #Java
                                                                Average in #Java
                                                                blynk-server License
                                                                  Best in #Java
                                                                    Average in #Java

                                                                      kandi-Reuse Reuse

                                                                        summary
                                                                        blynk-server releases are available to install and integrate.
                                                                        summary
                                                                        Build file is available. You can build the component from source.
                                                                        summary
                                                                        Installation instructions, examples and code snippets are available.
                                                                        summary
                                                                        blynk-server saves you 48806 person hours of effort in developing the same functionality from scratch.
                                                                        summary
                                                                        It has 57162 lines of code, 3413 functions and 711 files.
                                                                        summary
                                                                        It has medium code complexity. Code complexity directly impacts maintainability of the code.
                                                                        blynk-server Reuse
                                                                          Best in #Java
                                                                            Average in #Java
                                                                            blynk-server Reuse
                                                                              Best in #Java
                                                                                Average in #Java
                                                                                  Top functions reviewed by kandi - BETA
                                                                                  kandi has reviewed blynk-server and discovered the below as its top functions. This is intended to give you an instant insight into blynk-server implemented functionality, and help decide if they suit your requirements.
                                                                                  • Parses a String containing the command
                                                                                    • Assigns a specific field to this object .
                                                                                      • Parse a double value .
                                                                                        • Sends a static file .
                                                                                          • Handles a short or long option .
                                                                                            • Fetches the CA certificate .
                                                                                              • Validates an inet6 address .
                                                                                                • Update a specific widget property .
                                                                                                  • Create the project for an exported app .
                                                                                                    • Initialize the pin storage value for a given key
                                                                                                      Get all kandi verified functions for this library.
                                                                                                      Get all kandi verified functions for this library.

                                                                                                      blynk-server Key Features

                                                                                                      Blynk site
                                                                                                      Blynk docs
                                                                                                      Blynk community
                                                                                                      Blynk Examples generator
                                                                                                      Facebook
                                                                                                      Twitter
                                                                                                      App Store
                                                                                                      Google Play
                                                                                                      Blynk library
                                                                                                      Kickstarter

                                                                                                      blynk-server Examples and Code Snippets

                                                                                                      GETTING STARTED,Enabling raw data storage
                                                                                                      Javadot imgLines of Code : 41dot imgLicense : Strong Copyleft (GPL-3.0)
                                                                                                      copy iconCopy
                                                                                                      
                                                                                                                                          enable.db=true enable.raw.db.data.store=true
                                                                                                      sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt/ `lsb_release -cs`-pgdg main" >> /etc/apt/sources.list.d/pgdg.list' wget -q https://www.postgresql.org/media/keys/ACCC4CF8.asc -O - | sudo apt-key add - sudo apt-get update sudo apt-get install postgresql postgresql-contrib
                                                                                                      sudo apt-get update apt-get --no-install-recommends install postgresql-9.6 postgresql-contrib-9.6
                                                                                                      wget https://raw.githubusercontent.com/blynkkk/blynk-server/master/server/core/src/main/resources/create_schema.sql wget https://raw.githubusercontent.com/blynkkk/blynk-server/master/server/core/src/main/resources/reporting_schema.sql
                                                                                                      mv create_schema.sql /tmp mv reporting_schema.sql /tmp
                                                                                                      /tmp/create_schema.sql /tmp/reporting_schema.sql
                                                                                                      sudo su - postgres psql
                                                                                                      \i /tmp/create_schema.sql \i /tmp/reporting_schema.sql
                                                                                                      postgres=# \i /tmp/create_schema.sql CREATE DATABASE You are now connected to database "blynk" as user "postgres". CREATE TABLE CREATE TABLE CREATE TABLE CREATE TABLE CREATE TABLE CREATE TABLE CREATE TABLE CREATE TABLE CREATE TABLE CREATE TABLE CREATE TABLE CREATE ROLE GRANT GRANT
                                                                                                      \q
                                                                                                      2017-03-02 16:17:18.367 - DB url : jdbc:postgresql://localhost:5432/blynk?tcpKeepAlive=true&socketTimeout=150 2017-03-02 16:17:18.367 - DB user : test 2017-03-02 16:17:18.367 - Connecting to DB... 2017-03-02 16:17:18.455 - Connected to database successfully.
                                                                                                      GETTING STARTED,Quick local server setup,Enabling mail on Local server
                                                                                                      Javadot imgLines of Code : 6dot imgLicense : Strong Copyleft (GPL-3.0)
                                                                                                      copy iconCopy
                                                                                                      
                                                                                                                                          mail.smtp.auth=true mail.smtp.starttls.enable=true mail.smtp.host=smtp.gmail.com mail.smtp.port=587 mail.smtp.username=YOUR_EMAIL_HERE mail.smtp.password=YOUR_EMAIL_PASS_HERE
                                                                                                      GETTING STARTED,Enabling raw data storage,Install java for Ubuntu
                                                                                                      Javadot imgLines of Code : 6dot imgLicense : Strong Copyleft (GPL-3.0)
                                                                                                      copy iconCopy
                                                                                                      
                                                                                                                                          sudo add-apt-repository ppa:openjdk-r/ppa \ && sudo apt-get update -q \ && sudo apt install -y openjdk-11-jdk
                                                                                                      sudo apt-add-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java8-installer
                                                                                                      Community Discussions

                                                                                                      Trending Discussions on blynk-server

                                                                                                      Is log4j2 compatible with Java 11?
                                                                                                      chevron right
                                                                                                      How to exclude module-info.java from checkstyle plugin checks?
                                                                                                      chevron right

                                                                                                      QUESTION

                                                                                                      Is log4j2 compatible with Java 11?
                                                                                                      Asked 2020-Mar-09 at 05:43

                                                                                                      I tried to run my project on the latest Java 11. Everything works, except the specific file logger. Logging works fine on previous Java versions - 10, 9, 8, but not on Java 11.

                                                                                                      During server run I see only 1 warning:

                                                                                                      WARNING: sun.reflect.Reflection.getCallerClass is not supported. This will impact performance.

                                                                                                      Here is my configuration:

                                                                                                      
                                                                                                      
                                                                                                          
                                                                                                      
                                                                                                              
                                                                                                                  
                                                                                                                      %d{HH:mm:ss.SSS} - %msg%n
                                                                                                                  
                                                                                                                  
                                                                                                                      
                                                                                                                  
                                                                                                              
                                                                                                      
                                                                                                              
                                                                                                                  
                                                                                                                      %d{HH:mm:ss.SSS} - %msg%n
                                                                                                                  
                                                                                                                  
                                                                                                                      
                                                                                                                  
                                                                                                              
                                                                                                      
                                                                                                              
                                                                                                                  
                                                                                                                      %msg%n
                                                                                                                  
                                                                                                                  
                                                                                                                      
                                                                                                                  
                                                                                                              
                                                                                                      
                                                                                                              
                                                                                                                  
                                                                                                                      %d{HH:mm:ss.SSS} %-5level- %msg%n
                                                                                                                  
                                                                                                                  
                                                                                                                      
                                                                                                                  
                                                                                                              
                                                                                                      
                                                                                                          
                                                                                                      
                                                                                                          
                                                                                                      
                                                                                                              
                                                                                                                  
                                                                                                              
                                                                                                              
                                                                                                                  
                                                                                                              
                                                                                                              
                                                                                                                  
                                                                                                              
                                                                                                              
                                                                                                              
                                                                                                      
                                                                                                              
                                                                                                      
                                                                                                              
                                                                                                              
                                                                                                      
                                                                                                              
                                                                                                                  
                                                                                                              
                                                                                                      
                                                                                                          
                                                                                                      
                                                                                                      

                                                                                                      All loggers, except userLog works fine. However, userLog is empty.

                                                                                                      log4j2 version 2.11.1
                                                                                                      
                                                                                                      Ubuntu 16.04.5 LTS
                                                                                                      
                                                                                                      java version "11.0.1" 2018-10-16 LTS
                                                                                                      Java(TM) SE Runtime Environment 18.9 (build 11.0.1+13-LTS)
                                                                                                      Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.1+13-LTS, mixed mode)
                                                                                                      

                                                                                                      Update:

                                                                                                      Adding level="info" to the root level fixes the issue.

                                                                                                          
                                                                                                              
                                                                                                          
                                                                                                      

                                                                                                      However, in my project I was using a code that was setting a log level based on properties file. Here is a code:

                                                                                                      private static void changeLogLevel(String level) {
                                                                                                          Level newLevel = Level.valueOf(level);
                                                                                                          LoggerContext ctx = (LoggerContext) LogManager.getContext(false);
                                                                                                          Configuration conf = ctx.getConfiguration();
                                                                                                          conf.getLoggerConfig(LogManager.ROOT_LOGGER_NAME).setLevel(newLevel);
                                                                                                          ctx.updateLoggers(conf);
                                                                                                      }
                                                                                                      

                                                                                                      Seems like this part is no longer work with Java 11.

                                                                                                      ANSWER

                                                                                                      Answered 2019-Feb-15 at 16:56

                                                                                                      If someone is using Maven and is having the same issue while assembling a flat jar, here is what I did to fix the same issue:

                                                                                                      
                                                                                                          org.apache.maven.plugins
                                                                                                          maven-shade-plugin
                                                                                                          3.2.1
                                                                                                          
                                                                                                              
                                                                                                                  package
                                                                                                                  
                                                                                                                      shade
                                                                                                                  
                                                                                                                  
                                                                                                                      
                                                                                                                          
                                                                                                                              foo.bar.Generate
                                                                                                                              
                                                                                                                                  true
                                                                                                                              
                                                                                                                          
                                                                                                                          
                                                                                                                      
                                                                                                                  
                                                                                                              
                                                                                                          
                                                                                                      
                                                                                                      

                                                                                                      The important part is true.

                                                                                                      Note that the Java code I'm using now to change loggers level is:

                                                                                                      Configurator.setAllLevels("foo.bar", Level.DEBUG);
                                                                                                      

                                                                                                      Source https://stackoverflow.com/questions/53049346

                                                                                                      QUESTION

                                                                                                      How to exclude module-info.java from checkstyle plugin checks?
                                                                                                      Asked 2018-Apr-01 at 19:03

                                                                                                      After adding module-info.java files to my project my checkstyle plugin start failing with:

                                                                                                      [ERROR] Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:2.17:check (default-cli) on project email: Failed during checkstyle configuration: NoViableAltException occurred during the analysis of file /home/xxx/IdeaProjects/blynk-server/server/notifications/email/src/main/java/module-info.java. unexpected token: module -> [Help 1]

                                                                                                      I tried

                                                                                                      
                                                                                                          
                                                                                                      
                                                                                                      

                                                                                                      However, it failed with:

                                                                                                      [ERROR] Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:2.17:check (default-cli) on project blynk: Failed during checkstyle configuration: cannot initialize module BeforeExecutionExclusionFileFilter - Unable to instantiate 'BeforeExecutionExclusionFileFilter' class, it is also not possible to instantiate it as com.puppycrawl.tools.checkstyle.checks.annotation.BeforeExecutionExclusionFileFilter

                                                                                                      What is the correct way for skipping module-info.java files during checkstyle for maven-checkstyle-plugin?

                                                                                                      ANSWER

                                                                                                      Answered 2017-Sep-29 at 19:41

                                                                                                      Not sure why the Checkstyle filter is not working (this reported bug seems very similar to yours and it was fixed in version 7.3.0, so maybe you need to update Checkstyle).

                                                                                                      Anyway the Maven excludes element is also supposed to do this:

                                                                                                      
                                                                                                          org.apache.maven.plugins
                                                                                                          maven-checkstyle-plugin
                                                                                                          
                                                                                                              **/module-info.java
                                                                                                          
                                                                                                      
                                                                                                      

                                                                                                      More in the plugin goal documentation.

                                                                                                      Source https://stackoverflow.com/questions/46495576

                                                                                                      Community Discussions, Code Snippets contain sources that include Stack Exchange Network

                                                                                                      Vulnerabilities

                                                                                                      No vulnerabilities reported

                                                                                                      Install blynk-server

                                                                                                      or if above doesn't work:.
                                                                                                      Blynk has a bunch of integration tests that require DB, so you have to skip tests during build.

                                                                                                      Support

                                                                                                      For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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