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kandi has reviewed dubbo and discovered the below as its top functions. This is intended to give you an instant insight into dubbo implemented functionality, and help decide if they suit your requirements.
Transparent interface based RPC
Intelligent load balancing
Automatic service registration and discovery
High extensibility
Runtime traffic routing
Visualized service governance
Getting started
# git clone https://github.com/apache/dubbo-samples.git
# cd dubbo-samples/dubbo-samples-api
Maven dependency
<properties>
<dubbo.version>3.0.5</dubbo.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo</artifactId>
<version>${dubbo.version}</version>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-dependencies-zookeeper</artifactId>
<version>${dubbo.version}</version>
<type>pom</type>
</dependency>
</dependencies>
Define service interfaces
package org.apache.dubbo.samples.api;
public interface GreetingsService {
String sayHi(String name);
}
Implement service interface for the provider
package org.apache.dubbo.samples.provider;
import org.apache.dubbo.samples.api.GreetingsService;
public class GreetingsServiceImpl implements GreetingsService {
@Override
public String sayHi(String name) {
return "hi, " + name;
}
}
Start service provider
package org.apache.dubbo.samples.provider;
import org.apache.dubbo.config.ApplicationConfig;
import org.apache.dubbo.config.RegistryConfig;
import org.apache.dubbo.config.ServiceConfig;
import org.apache.dubbo.samples.api.GreetingsService;
import java.util.concurrent.CountDownLatch;
public class Application {
private static String zookeeperHost = System.getProperty("zookeeper.address", "127.0.0.1");
public static void main(String[] args) throws Exception {
ServiceConfig<GreetingsService> service = new ServiceConfig<>();
service.setApplication(new ApplicationConfig("first-dubbo-provider"));
service.setRegistry(new RegistryConfig("zookeeper://" + zookeeperHost + ":2181"));
service.setInterface(GreetingsService.class);
service.setRef(new GreetingsServiceImpl());
service.export();
System.out.println("dubbo service started");
new CountDownLatch(1).await();
}
}
Build and run the provider
# mvn clean package
# mvn -Djava.net.preferIPv4Stack=true -Dexec.mainClass=org.apache.dubbo.samples.provider.Application exec:java
Call remote service in the consumer
package org.apache.dubbo.samples.client;
import org.apache.dubbo.config.ApplicationConfig;
import org.apache.dubbo.config.ReferenceConfig;
import org.apache.dubbo.config.RegistryConfig;
import org.apache.dubbo.samples.api.GreetingsService;
public class Application {
private static String zookeeperHost = System.getProperty("zookeeper.address", "127.0.0.1");
public static void main(String[] args) {
ReferenceConfig<GreetingsService> reference = new ReferenceConfig<>();
reference.setApplication(new ApplicationConfig("first-dubbo-consumer"));
reference.setRegistry(new RegistryConfig("zookeeper://" + zookeeperHost + ":2181"));
reference.setInterface(GreetingsService.class);
GreetingsService service = reference.get();
String message = service.sayHi("dubbo");
System.out.println(message);
}
}
Build and run the consumer
# mvn clean package
# mvn -Djava.net.preferIPv4Stack=true -Dexec.mainClass=org.apache.dubbo.samples.client.Application exec:java
Building
mvn clean install
JQ move(or copy) key value pairs to another object if a key/value pair meets condition in that object
jq '
[
JOIN(
INDEX(.[].cells; .[] | select(.columnId == 7408953102493572).displayValue);
input[];
.cells[] | select(.columnId == 5460306864433028).displayValue;
(.[0].cells[] | select(.columnId == 5206337428711300)) += try
(.[1][] | select(.columnId == 5822630258337668) | del(.Column, .columnId))
)[0]
]
' from.json to.json
[
{
"id": 977325251291012,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300,
"value": "Dd Kk",
"displayValue": "Dd Kk link",
"hyperlink": {
"url": "https://app.test.com/fvffvs/dfesfrfr"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 6836472364722052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
}
},
{
"columnId": 5460306864433028,
"value": "Dd Kk",
"displayValue": "Dd Kk"
}
]
},
{
"id": 5480924878661508,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300,
"displayValue": "Macquarie Education Programs Building - J-10005",
"hyperlink": {
"url": "https://app.test.com/jnjnnlkm/fvfbsfbfgvdsfe"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 4795289157298052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
},
"value": "Macquarie Education Programs - J-10005"
},
{
"columnId": 5460306864433028,
"value": "Macquarie Education Programs",
"displayValue": "Macquarie Education Programs"
}
]
}
]
-----------------------
jq '
[
JOIN(
INDEX(.[].cells; .[] | select(.columnId == 7408953102493572).displayValue);
input[];
.cells[] | select(.columnId == 5460306864433028).displayValue;
(.[0].cells[] | select(.columnId == 5206337428711300)) += try
(.[1][] | select(.columnId == 5822630258337668) | del(.Column, .columnId))
)[0]
]
' from.json to.json
[
{
"id": 977325251291012,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300,
"value": "Dd Kk",
"displayValue": "Dd Kk link",
"hyperlink": {
"url": "https://app.test.com/fvffvs/dfesfrfr"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 6836472364722052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
}
},
{
"columnId": 5460306864433028,
"value": "Dd Kk",
"displayValue": "Dd Kk"
}
]
},
{
"id": 5480924878661508,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300,
"displayValue": "Macquarie Education Programs Building - J-10005",
"hyperlink": {
"url": "https://app.test.com/jnjnnlkm/fvfbsfbfgvdsfe"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 4795289157298052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
},
"value": "Macquarie Education Programs - J-10005"
},
{
"columnId": 5460306864433028,
"value": "Macquarie Education Programs",
"displayValue": "Macquarie Education Programs"
}
]
}
]
How to restructure an array from the array itself?
const data = [{
"Id": 1891,
"AirportCode": "DUB",
"AirportName": "Dublin Airport",
"AirportCity": "Dublin",
"Priority": 1,
"SubPriority": 0
}, {
"Id": 1921,
"AirportCode": "DXB",
"AirportName": "Dubai International Airport",
"AirportCity": "Dubai",
"Priority": 1,
"SubPriority": 0
}, {
"Id": 1680,
"AirportCode": "DBN",
"AirportName": "Dublin Municipal Airport",
"AirportCity": "Dublin",
"Priority": 2,
"SubPriority": 1
}, {
"Id": 8973,
"AirportCode": "XNB",
"AirportName": "United Arab Emirates - Bus Station",
"AirportCity": "Dubai",
"Priority": 2,
"SubPriority": 1
}, {
"Id": 6062,
"AirportCode": "PSK",
"AirportName": "New River Valley Airport",
"AirportCity": "Dublin",
"Priority": 3,
"SubPriority": 1
}, {
"Id": 1681,
"AirportCode": "DBO",
"AirportName": "Dubbo Airport",
"AirportCity": "Dubbo",
"Priority": 99,
"SubPriority": 0 // null - Inconsistent !!!
}];
const grouped = group(data);
window.result.innerHTML = JSON.stringify(grouped, null, 2);
function group(data){
const [main, subs] = data.reduce(([main, subs], item) => {
if (item.SubPriority === 0) {
return [main.concat(item), subs];
}
const subList = subs.get(item.AirportCity) || [];
subs.set(item.AirportCity, subList.concat(item));
return [main, subs];
}, [[], new Map()]);
return main.map((item) => Object.assign(item, {SubAirport: subs.get(item.AirportCity) || []}));
}
<pre id="result"/>
-----------------------
const data = [{
"Id": 1891,
"AirportCode": "DUB",
"AirportName": "Dublin Airport",
"AirportCity": "Dublin",
"Priority": 1,
"SubPriority": 0
}, {
"Id": 1921,
"AirportCode": "DXB",
"AirportName": "Dubai International Airport",
"AirportCity": "Dubai",
"Priority": 1,
"SubPriority": 0
}, {
"Id": 1680,
"AirportCode": "DBN",
"AirportName": "Dublin Municipal Airport",
"AirportCity": "Dublin",
"Priority": 2,
"SubPriority": 1
}, {
"Id": 8973,
"AirportCode": "XNB",
"AirportName": "United Arab Emirates - Bus Station",
"AirportCity": "Dubai",
"Priority": 2,
"SubPriority": 1
}, {
"Id": 6062,
"AirportCode": "PSK",
"AirportName": "New River Valley Airport",
"AirportCity": "Dublin",
"Priority": 3,
"SubPriority": 1
}, {
"Id": 1681,
"AirportCode": "DBO",
"AirportName": "Dubbo Airport",
"AirportCity": "Dubbo",
"Priority": 99,
"SubPriority": 0 // null - Inconsistent !!!
}];
const grouped = group(data);
window.result.innerHTML = JSON.stringify(grouped, null, 2);
function group(data){
const [main, subs] = data.reduce(([main, subs], item) => {
if (item.SubPriority === 0) {
return [main.concat(item), subs];
}
const subList = subs.get(item.AirportCity) || [];
subs.set(item.AirportCity, subList.concat(item));
return [main, subs];
}, [[], new Map()]);
return main.map((item) => Object.assign(item, {SubAirport: subs.get(item.AirportCity) || []}));
}
<pre id="result"/>
-----------------------
this.airports.sort((a,b)=>a.Priority-b.Priority) //sort by priority
this.airports.forEach((x,index)=>{
const airport=this.airports.find( //try find one more on top
(a,index2)=>a.AirportCity==x.AirportCity && index>index2)
if (airport) //if exist
{
if (!airport.SubAirport) //if has not SubAirport
airport.SubAirport=[{...x}] //create an array with one element
else
airport.SubAirport.push({...x}) //add to array
x.remove=true; //mark as "removable"
}
})
this.airports=this.airports.filter(x=>!x.remove) //<--remove the removable
QUESTION
JQ move(or copy) key value pairs to another object if a key/value pair meets condition in that object
Asked 2022-Mar-30 at 10:03I have two files, they are very large so I will give a snippet of relevant data:
from_file:
[
{
"id": 7212486534162308,
"rowNumber": 283,
"cells": [
{
"Column": "SS name",
"columnId": 7408953102493572,
"displayValue": "Dd Kk",
"linkInFromCell": {
"status": "OK",
"sheetId": 4409864198875012,
"rowId": 5483738575202180,
"columnId": 6482434207311748,
"sheetName": "INFORMATION - J-1000579"
},
"value": "Dd Kk"
},
{
"Column": "link",
"columnId": 5822630258337668,
"displayValue": "Dd Kk link",
"hyperlink": {
"url": "https://app.test.com/fvffvs/dfesfrfr"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 6836472364722052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
},
"value": "Dd Kk"
}
]
},
{
"id": 7046413570598788,
"rowNumber": 284,
"cells": [
{
"Column": "SS name",
"columnId": 7408953102493572,
"displayValue": "Macquarie Education Programs",
"linkInFromCell": {
"status": "OK",
"sheetId": 8275059887368068,
"rowId": 8307181892986756,
"columnId": 687741640959876,
"sheetName": "INFORMATION - J-1000532.01"
},
"value": "Macquarie Education Programs"
},
{
"Column": "link",
"columnId": 5822630258337668,
"displayValue": "Macquarie Education Programs Building - J-10005",
"hyperlink": {
"url": "https://app.test.com/jnjnnlkm/fvfbsfbfgvdsfe"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 4795289157298052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
},
"value": "Macquarie Education Programs - J-10005"
}
]
}
]
to_file:
[
{
"id": 977325251291012,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300,
"value": ""
},
{
"columnId": 5460306864433028,
"value": "Dd Kk",
"displayValue": "Dd Kk"
}
]
},
{
"id": 5480924878661508,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300
},
{
"columnId": 5460306864433028,
"value": "Macquarie Education Programs",
"displayValue": "Macquarie Education Programs"
}
]
}
]
in the to_file, inside each object that contains "columnId": 5206337428711300 I need to add all the key value pairs (except for "Column" and "columnId") from the from_file "columnId": 5822630258337668 containing object where that array of cell's "columnId": 7408953102493572 containing object has the same "displayValue" value as the to_file's "columnId": 5460306864433028 containing objects "displayValue" value.
desired outcome below:
[
{
"id": 977325251291012,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300,
"displayValue": "Dd Kk link",
"hyperlink": {
"url": "https://app.test.com/fvffvs/dfesfrfr"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 6836472364722052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
},
"value": "Dd Kk"
},
{
"columnId": 5460306864433028,
"value": "Dd Kk",
"displayValue": "Dd Kk"
}
]
},
{
"id": 5480924878661508,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300,
"displayValue": "Macquarie Education Programs Building - J-10005",
"hyperlink": {
"url": "https://app.test.com/jnjnnlkm/fvfbsfbfgvdsfe"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 4795289157298052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
},
"value": "Macquarie Education Programs - J-10005"
},
{
"columnId": 5460306864433028,
"value": "Macquarie Education Programs",
"displayValue": "Macquarie Education Programs"
}
]
}
]
Thanks
@PMF answer below works but will fail if there is an item in the to_file that can't be found in the from file.
this works Demo
[
{
"id": 7660296628791172,
"rowNumber": 484,
"cells": [
{
"Column": "SS name",
"columnId": 7408953102493572,
"displayValue": "CSNSW",
"linkInFromCell": {
"status": "OK",
"sheetId": 3495076589528964,
"rowId": 4453675823982468,
"columnId": 6210919910926212,
"sheetName": "INFORMATION - J-1000739.01"
},
"value": "CSNSW"
},
{
"Column": "link",
"columnId": 5822630258337668,
"displayValue": "CSNSW - J-1000739.01",
"hyperlink": {
"url": "https://app.test.com/beffvfdcwe/ergrsvsrfv"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 3495076589528964,
"rowId": 4655985963493252,
"columnId": 6210919910926212,
"sheetName": "INFORMATION - J-1000739.01"
},
"value": "CSNSW - J-1000739.01"
}
]
},
{
"id": 7212486534162308,
"rowNumber": 283,
"cells": [
{
"Column": "SS name",
"columnId": 7408953102493572,
"displayValue": "Dd Kk",
"linkInFromCell": {
"status": "OK",
"sheetId": 4409864198875012,
"rowId": 5483738575202180,
"columnId": 6482434207311748,
"sheetName": "INFORMATION - J-1000579"
},
"value": "Dd Kk"
},
{
"Column": "link",
"columnId": 5822630258337668,
"displayValue": "Dd Kk link",
"hyperlink": {
"url": "https://app.test.com/fvffvs/dfesfrfr"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 6836472364722052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
},
"value": "Dd Kk"
}
]
},
{
"id": 7046413570598788,
"rowNumber": 284,
"cells": [
{
"Column": "SS name",
"columnId": 7408953102493572,
"displayValue": "Macquarie Education Programs",
"linkInFromCell": {
"status": "OK",
"sheetId": 8275059887368068,
"rowId": 8307181892986756,
"columnId": 687741640959876,
"sheetName": "INFORMATION - J-1000532.01"
},
"value": "Macquarie Education Programs"
},
{
"Column": "link",
"columnId": 5822630258337668,
"displayValue": "Macquarie Education Programs Building - J-10005",
"hyperlink": {
"url": "https://app.test.com/jnjnnlkm/fvfbsfbfgvdsfe"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 4795289157298052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
},
"value": "Macquarie Education Programs - J-10005"
}
]
}
]
[
{
"id": 977325251291012,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300,
"value": ""
},
{
"columnId": 5460306864433028,
"value": "Dd Kk",
"displayValue": "Dd Kk"
}
]
},
{
"id": 5480924878661508,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300
},
{
"columnId": 5460306864433028,
"value": "Macquarie Education Programs",
"displayValue": "Macquarie Education Programs"
}
]
}
]
this doesn't work Demo
[
{
"id": 7660296628791172,
"rowNumber": 484,
"cells": [
{
"Column": "SS name",
"columnId": 7408953102493572,
"displayValue": "CSNSW",
"linkInFromCell": {
"status": "OK",
"sheetId": 3495076589528964,
"rowId": 4453675823982468,
"columnId": 6210919910926212,
"sheetName": "INFORMATION - J-1000739.01"
},
"value": "CSNSW"
},
{
"Column": "link",
"columnId": 5822630258337668,
"displayValue": "CSNSW - J-1000739.01",
"hyperlink": {
"url": "https://app.test.com/beffvfdcwe/ergrsvsrfv"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 3495076589528964,
"rowId": 4655985963493252,
"columnId": 6210919910926212,
"sheetName": "INFORMATION - J-1000739.01"
},
"value": "CSNSW - J-1000739.01"
}
]
},
{
"id": 7212486534162308,
"rowNumber": 283,
"cells": [
{
"Column": "SS name",
"columnId": 7408953102493572,
"displayValue": "Dd Kk",
"linkInFromCell": {
"status": "OK",
"sheetId": 4409864198875012,
"rowId": 5483738575202180,
"columnId": 6482434207311748,
"sheetName": "INFORMATION - J-1000579"
},
"value": "Dd Kk"
},
{
"Column": "link",
"columnId": 5822630258337668,
"displayValue": "Dd Kk link",
"hyperlink": {
"url": "https://app.test.com/fvffvs/dfesfrfr"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 6836472364722052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
},
"value": "Dd Kk"
}
]
},
{
"id": 7046413570598788,
"rowNumber": 284,
"cells": [
{
"Column": "SS name",
"columnId": 7408953102493572,
"displayValue": "Macquarie Education Programs",
"linkInFromCell": {
"status": "OK",
"sheetId": 8275059887368068,
"rowId": 8307181892986756,
"columnId": 687741640959876,
"sheetName": "INFORMATION - J-1000532.01"
},
"value": "Macquarie Education Programs"
},
{
"Column": "link",
"columnId": 5822630258337668,
"displayValue": "Macquarie Education Programs Building - J-10005",
"hyperlink": {
"url": "https://app.test.com/jnjnnlkm/fvfbsfbfgvdsfe"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 4795289157298052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
},
"value": "Macquarie Education Programs - J-10005"
}
]
}
]
[
{
"id": 977325251291012,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300,
"value": ""
},
{
"columnId": 5460306864433028,
"value": "Dd Kk",
"displayValue": "Dd Kk"
}
]
},
{
"id": 5480924878661508,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300
},
{
"columnId": 5460306864433028,
"value": "Macquarie Education Programs",
"displayValue": "Macquarie Education Programs"
}
]
},
{
"id": 7276986526263172,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300
},
{
"columnId": 5460306864433028,
"value": "Dubbo",
"displayValue": "Dubbo"
}
]
}
]
Thanks!!
ANSWER
Answered 2022-Mar-30 at 10:03You could build an INDEX
on a matching displayValue
, and then JOIN
the arrays by updating +=
the right object in to.json
with the corresponding object in from.json
:
FIXED: Using try
in the join update prevents from failing if the matching is not complete.
jq '
[
JOIN(
INDEX(.[].cells; .[] | select(.columnId == 7408953102493572).displayValue);
input[];
.cells[] | select(.columnId == 5460306864433028).displayValue;
(.[0].cells[] | select(.columnId == 5206337428711300)) += try
(.[1][] | select(.columnId == 5822630258337668) | del(.Column, .columnId))
)[0]
]
' from.json to.json
[
{
"id": 977325251291012,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300,
"value": "Dd Kk",
"displayValue": "Dd Kk link",
"hyperlink": {
"url": "https://app.test.com/fvffvs/dfesfrfr"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 6836472364722052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
}
},
{
"columnId": 5460306864433028,
"value": "Dd Kk",
"displayValue": "Dd Kk"
}
]
},
{
"id": 5480924878661508,
"cells": [
{
"columnId": 2040705442965380,
"value": true
},
{
"columnId": 5206337428711300,
"displayValue": "Macquarie Education Programs Building - J-10005",
"hyperlink": {
"url": "https://app.test.com/jnjnnlkm/fvfbsfbfgvdsfe"
},
"linkInFromCell": {
"status": "OK",
"sheetId": 316850291664772,
"rowId": 4795289157298052,
"columnId": 6189414452881284,
"sheetName": "PROJECT INTAKE SHEET"
},
"value": "Macquarie Education Programs - J-10005"
},
{
"columnId": 5460306864433028,
"value": "Macquarie Education Programs",
"displayValue": "Macquarie Education Programs"
}
]
}
]
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