我已经编写了逻辑来连续监控Hyperledger Composer上的logic.js文件中的一些资产。它通过运行连续函数来执行此操作，该函数将请求发送到不同的api并根据结果更新资产。
我希望此流程始终运行，不断监控所有资产，并在收到结果时更新网络中的资产。
我现在正在做的是从我的网络setupDemo函数调用函数（repeatMonitorPlane(planes)）。然而，一个问题是，如果需要重新启动网络，则会停止setupDemo，当它重新启动时，它不会继续监视资产，我无法再次运行setupDemo。有谁知道怎么解决这个问题？也许有一些系统函数我可以调用repeatMonitorPlane函数，这样如果重新启动网络，它将再次启动进程？
任何想法都会受到极大的反对！
我的代码：
async function repeatMonitorPlane(planes){
//passing all four planes in ourSetupDemo into monitor plane function
console.log('Planes being monitored: ' + planes);
setInterval(async function () {
try{
await monitorPlane(planes);
} catch (e) {
console.log('\nPlane is on the ground \n');
}
}, 15000);
/**
* Transaction to allow parties to Monitor planes
* @param {org.blockaviation.MonitorPlane} monitorPlane
* @transaction
*/
async function monitorPlane(monitorPlane){
var NS = 'org.blockaviation';
var location;
console.log(monitorPlane.length);
for(i =0;i<monitorPlane.length;i++){
var monitor_plane = monitorPlane[i];
console.log("\n"+i+"\n");
console.log('\nMonitoring plane: ' + monitorPlane[i].icao);
await getLocation(monitorPlane[i].icao)
.then(function(location){
if (location == null) throw "Plane on ground";
console.log('location in monitorPlane: latitude: '+location[0] + ' longitude: '+location[1]);
monitor_plane.lat = location[0]
monitor_plane.long = location[1]
//update the location variable on the plane asset
if(monitor_plane.location){
monitor_plane.location.push(location[0],location[1]) //lat,long
}else{
monitor_plane.location = [location[0],location[1]]
}
}).then(function(){
return getAssetRegistry(NS + '.Plane')
}).then(function(planeRegistry){
console.log('monitor_plane.location');
console.log(monitor_plane);
return planeRegistry.update(monitor_plane);
}).catch(function(e){
console.log(e);
return
})
}
}
async function getLocation(icao){
var url = 'https://opensky-network.org/api/states/all?icao24=' + icao;
var lat, long;
try {
var result = await request.get({uri: url, json: true });
if (result.states == null){
throw "Plane on ground";
}
lat = result.states[0][6]
long = result.states[0][5]
lat = lat.toString()
long = long.toString()
location = [lat,long]
console.log('Plane: '+ icao + ' location: ' + 'latitude: '+ location[0] +' degrees, ' + 'longitude: ' + location[1] + ' degrees\n' );
return location
} catch(e) {
console.log('\nError trying to get location of plane \n');
return null
}
}
}
dev-peer0.org1.example.com的日志 - ＆gt;更新资产有问题吗？
4
0
Monitoring plane: 4409c0
Plane: 4409c0 location: latitude: 54.9203 degrees, longitude: -3.0248 degrees
location in monitorPlane: latitude: 54.9203 longitude: -3.0248
2018-04-04T15:31:16.373Z [3e973d0c] [DEBUG ] @JS : Api :getAssetRegistry() > org.blockaviation.Plane
2018-04-04T15:31:16.373Z [3e973d0c] [DEBUG ] @JS : RegistryManager :get() > Asset:org.blockaviation.Plane
2018-04-04T15:31:16.374Z [3e973d0c] [DEBUG ] @JS : NodeDataCollection :get() > Asset:org.blockaviation.Plane
Error: [3e973d0c]No ledger context for GetState. Sending ERROR
at parseResponse (/usr/local/src/node_modules/fabric-shim/lib/handler.js:673:9)
at MsgQueueHandler.handleMsgResponse (/usr/local/src/node_modules/fabric-shim/lib/handler.js:137:26)
at ClientDuplexStream.<anonymous> (/usr/local/src/node_modules/fabric-shim/lib/handler.js:293:28)
at emitOne (events.js:116:13)
at ClientDuplexStream.emit (events.js:211:7)
at addChunk (_stream_readable.js:263:12)
at readableAddChunk (_stream_readable.js:250:11)
at ClientDuplexStream.Readable.push (_stream_readable.js:208:10)
at readCallback (/usr/local/src/node_modules/grpc/src/client.js:312:14)
1
Monitoring plane: 3c674e
Plane: 3c674e location: latitude: 54.8877 degrees, longitude: -3.5034 degrees
location in monitorPlane: latitude: 54.8877 longitude: -3.5034
2018-04-04T15:31:16.551Z [3e973d0c] [DEBUG ] @JS : Api :getAssetRegistry() > org.blockaviation.Plane
2018-04-04T15:31:16.551Z [3e973d0c] [DEBUG ] @JS : RegistryManager :get() > Asset:org.blockaviation.Plane
2018-04-04T15:31:16.551Z [3e973d0c] [DEBUG ] @JS : NodeDataCollection :get() > Asset:org.blockaviation.Plane
Error: [3e973d0c]No ledger context for GetState. Sending ERROR
at parseResponse (/usr/local/src/node_modules/fabric-shim/lib/handler.js:673:9)
at MsgQueueHandler.handleMsgResponse (/usr/local/src/node_modules/fabric-shim/lib/handler.js:137:26)
at ClientDuplexStream.<anonymous> (/usr/local/src/node_modules/fabric-shim/lib/handler.js:293:28)
at emitOne (events.js:116:13)
at ClientDuplexStream.emit (events.js:211:7)
at addChunk (_stream_readable.js:263:12)
at readableAddChunk (_stream_readable.js:250:11)
at ClientDuplexStream.Readable.push (_stream_readable.js:208:10)
at readCallback (/usr/local/src/node_modules/grpc/src/client.js:312:14)
2
Monitoring plane: 4ca264
Plane: 4ca264 location: latitude: 53.4304 degrees, longitude: -4.9469 degrees
location in monitorPlane: latitude: 53.4304 longitude: -4.9469
2018-04-04T15:31:16.794Z [3e973d0c] [DEBUG ] @JS : Api :getAssetRegistry() > org.blockaviation.Plane
2018-04-04T15:31:16.796Z [3e973d0c] [DEBUG ] @JS : RegistryManager :get() > Asset:org.blockaviation.Plane
2018-04-04T15:31:16.796Z [3e973d0c] [DEBUG ] @JS : NodeDataCollection :get() > Asset:org.blockaviation.Plane
Error: [3e973d0c]No ledger context for GetState. Sending ERROR
at parseResponse (/usr/local/src/node_modules/fabric-shim/lib/handler.js:673:9)
at MsgQueueHandler.handleMsgResponse (/usr/local/src/node_modules/fabric-shim/lib/handler.js:137:26)
at ClientDuplexStream.<anonymous> (/usr/local/src/node_modules/fabric-shim/lib/handler.js:293:28)
at emitOne (events.js:116:13)
at ClientDuplexStream.emit (events.js:211:7)
at addChunk (_stream_readable.js:263:12)
at readableAddChunk (_stream_readable.js:250:11)
at ClientDuplexStream.Readable.push (_stream_readable.js:208:10)
at readCallback (/usr/local/src/node_modules/grpc/src/client.js:312:14)
3
Monitoring plane: 40742f
Error trying to get location of plane
Plane on ground
setupDemo
/**
* This is jus a setuo demo. It wil create new particpants and assets automatically
* @param {org.blockaviation.OurSetupDemo} ourSetupDemo
* @transaction
*/
function ourSetupDemo(ourSetupDemo){
var factory = getFactory();
var NS = 'org.blockaviation';
//Create LESSOR one
var lessor = factory.newResource(NS, 'Lessor', 'lessor@gmail.com');
var lessorAddress = factory.newConcept(NS, 'Address');
lessorAddress.country = 'USA';
lessor.address = lessorAddress;
//Create LESSOR two
var lessor2 = factory.newResource(NS, 'Lessor', 'lessor2@gmail.com');
var lessor2Address = factory.newConcept(NS, 'Address');
lessor2Address.country = 'Ireland';
lessor2.address = lessor2Address;
//Create LESSEE one
var lessee = factory.newResource(NS, 'Lessee', 'lessee@gmail.com');
var lesseeAddress = factory.newConcept(NS, 'Address');
lesseeAddress.country = 'USA';
lessee.address = lesseeAddress;
//Create LESSEE two
var lessee2 = factory.newResource(NS, 'Lessee', 'lessee2@gmail.com');
var lessee2Address = factory.newConcept(NS, 'Address');
lessee2Address.country = 'Ireland';
lessee2.address = lessee2Address;
//Create MANUFACTURER one
var manufacturer = factory.newResource(NS, 'Manufacturer', 'manufacturer@gmail.com');
var manufacturerAddress = factory.newConcept(NS, 'Address');
manufacturerAddress.country = 'USA';
manufacturer.address = manufacturerAddress;
//Create MANUFACTURER two
var manufacturer2 = factory.newResource(NS, 'Manufacturer', 'manufacturer2@gmail.com');
var manufacturer2Address = factory.newConcept(NS, 'Address');
manufacturer2Address.country = 'USA';
manufacturer2.address = manufacturer2Address;
//Create Servicer one
var servicer = factory.newResource(NS, 'Servicer', 'servicer@gmail.com');
var servicerAddress = factory.newConcept(NS, 'Address');
servicerAddress.country = 'USA';
servicer.address = servicerAddress;
//Create Servicer two
var servicer2 = factory.newResource(NS, 'Servicer', 'servicer2@gmail.com');
var servicer2Address = factory.newConcept(NS, 'Address');
servicer2Address.country = 'Germany';
servicer2.address = servicer2Address;
//Create the regulator - not extended from member abstract class
var regulator = factory.newResource(NS, 'Regulator', 'regulator@gmail.com');
//Create the first Contract
var contract = factory.newResource(NS, 'Contract', 'CON_001');
contract.lessor = factory.newRelationship(NS, 'Lessor', 'lessor@gmail.com');
contract.lessee = factory.newRelationship(NS, 'Lessee', 'lessee@gmail.com');
contract.manufacturer = factory.newRelationship(NS, 'Manufacturer', 'manufacturer@gmail.com');
contract.servicer = factory.newRelationship(NS, 'Servicer', 'servicer@gmail.com');
contract.contractType = 'DRY_LEASE';
contract.contract_status = 'INITIALISED';
//Create the second Contract
var contract2 = factory.newResource(NS, 'Contract', 'CON_002');
contract2.lessor = factory.newRelationship(NS, 'Lessor', 'lessor2@gmail.com');
contract2.lessee = factory.newRelationship(NS, 'Lessee', 'lessee2@gmail.com');
contract2.manufacturer = factory.newRelationship(NS, 'Manufacturer', 'manufacturer2@gmail.com');
contract2.servicer = factory.newRelationship(NS, 'Servicer', 'servicer2@gmail.com');
contract2.contractType = 'WET_LEASE';
contract2.contract_status = 'INITIALISED';
//Create the first plane asset
var plane = factory.newResource(NS,'Plane', 'Plane_001');
plane.lessor = factory.newRelationship(NS, 'Lessor', 'lessor@gmail.com');
plane.lessee = factory.newRelationship(NS, 'Lessee', 'lessee@gmail.com');
plane.manufacturer = factory.newRelationship(NS, 'Manufacturer', 'manufacturer@gmail.com');
plane.servicer = factory.newRelationship(NS, 'Servicer', 'servicer@gmail.com');
plane.icao = '4409c0';
plane.lat = '0';
plane.long = '0';
//Create the second plane asset
var plane2 = factory.newResource(NS,'Plane', 'Plane_002');
plane2.lessor = factory.newRelationship(NS, 'Lessor', 'lessor@gmail.com');
plane2.lessee = factory.newRelationship(NS, 'Lessee', 'lessee@gmail.com');
plane2.manufacturer = factory.newRelationship(NS, 'Manufacturer', 'manufacturer@gmail.com');
plane2.servicer = factory.newRelationship(NS, 'Servicer', 'servicer@gmail.com');
plane2.icao = '3c674e';
plane2.lat = '0';
plane2.long = '0';
//Create the third plane asset
var plane3 = factory.newResource(NS,'Plane', 'Plane_003');
plane3.lessor = factory.newRelationship(NS, 'Lessor', 'lessor2@gmail.com');
plane3.lessee = factory.newRelationship(NS, 'Lessee', 'lessee2@gmail.com');
plane3.manufacturer = factory.newRelationship(NS, 'Manufacturer', 'manufacturer2@gmail.com');
plane3.servicer = factory.newRelationship(NS, 'Servicer', 'servicer2@gmail.com');
plane3.icao = '4ca264';
plane3.lat = '0';
plane3.long = '0';
//Create the fourth plane asset
var plane4 = factory.newResource(NS,'Plane', 'Plane_004');
plane4.lessor = factory.newRelationship(NS, 'Lessor', 'lessor@gmail.com');
plane4.lessee = factory.newRelationship(NS, 'Lessee', 'lessee@gmail.com');
plane4.manufacturer = factory.newRelationship(NS, 'Manufacturer', 'manufacturer@gmail.com');
plane4.servicer = factory.newRelationship(NS, 'Servicer', 'servicer@gmail.com');
plane4.icao = '40742f';
plane4.lat = '0';
plane4.long = '0';
//var planes = [plane,plane2,plane3];//,plane2,plane3,plane4
var planes = [plane,plane2,plane3,plane4];//
//console.log('plane');
//console.log(plane);
repeatMonitorPlane(planes)
//Create the javascript promises - Populating contract
return getParticipantRegistry(NS + '.Lessor')
.then(function(lessorRegistry){
return lessorRegistry.addAll([lessor,lessor2]);
})
.then(function(){
return getParticipantRegistry(NS + '.Lessee');
})
.then(function(lesseeRegistry){
return lesseeRegistry.addAll([lessee,lessee2]);
})
.then(function(){
return getParticipantRegistry(NS + '.Manufacturer');
})
.then(function(manufacturerRegistry){
return manufacturerRegistry.addAll([manufacturer,manufacturer2]);
})
.then(function(){
return getParticipantRegistry(NS + '.Servicer');
})
.then(function(servicerRegistry){
return servicerRegistry.addAll([servicer,servicer2]);
})
.then(function(){
return getParticipantRegistry(NS + '.Regulator');
})
.then(function(regulatorRegistry){
return regulatorRegistry.addAll([regulator]);
})
.then(function(){
return getAssetRegistry(NS + '.Contract');
})
.then(function(contractRegistry){
return contractRegistry.addAll([contract,contract2]);
})
.then(function(){
return getAssetRegistry(NS + '.Plane');
})
.then(function(planeRegistry){
planeRegistry.addAll([plane,plane2]);
planeRegistry.addAll([plane3,plane4]);
})
}
答案 0 :(得分：1)
不幸的是，这不会飞： - ）
在monitorPlanes事务（通过repeatMonitorPlanes）启动之前，您的安装事务未完成（返回），因此还没有数据可供monitorPlanes更新。
作为将repeatMonitorPlanes作为模型逻辑中的函数的替代方法，您可以编写一个单独的API程序，该程序可以使用重复循环来使用客户端API中的TransactionRegistry类来调用monitorPlanes事务