@iotize/ionic
Version:
Iotize specific building blocks on top of @ionic/angular.
120 lines • 14.6 kB
JavaScript
import '@iotize/tap/service/impl/interface';
import { Buffer } from 'buffer';
import { Observable } from 'rxjs';
export const DEFAULT_TAP_REQUEST_MAX_SIZE_OPTIONS = {
maxRequestByteSize: 180,
maxResponseByteSize: 200,
};
export function computeTapRequestCallSize(chunk) {
let bodyLength = computeBodyLength(chunk);
return (2 + // Request length
7 + // GET /A/B/C
bodyLength);
}
export function createSingleChunkMultiTapRequestCalls(calls, index = 0, { maxResponseByteSize, maxRequestByteSize, } = DEFAULT_TAP_REQUEST_MAX_SIZE_OPTIONS) {
let totalResponseByteSize = 0;
let totalRequestByteSize = 0;
const chunck = [];
if (index >= calls.length) {
return {
calls: [],
nextIndex: undefined,
};
}
for (; index < calls.length; index++) {
const { call, responseBodySize } = calls[index];
const tapRequestByteSize = computeTapRequestCallSize(call);
totalResponseByteSize += responseBodySize + 2;
totalRequestByteSize += tapRequestByteSize;
if (chunck.length > 0 &&
(totalResponseByteSize > maxResponseByteSize ||
totalRequestByteSize > maxRequestByteSize)) {
return {
calls: chunck,
nextIndex: index,
};
}
else {
chunck.push(call);
}
}
return {
nextIndex: undefined,
calls: chunck,
};
}
export function chunkMultiTapRequestCalls(calls, options = DEFAULT_TAP_REQUEST_MAX_SIZE_OPTIONS) {
function encodeChunks() {
let chuncks = [];
let nextIndex = 0;
while (nextIndex !== undefined) {
const nextChunk = createSingleChunkMultiTapRequestCalls(calls, nextIndex, options);
nextIndex = nextChunk.nextIndex;
chuncks.push(nextChunk.calls);
}
return chuncks;
}
return encodeChunks();
}
export function createMultiTapRequestCallChuncksExecutor(tap, chunks) {
return new Observable((emitter) => {
let stop = false;
(async () => {
try {
for (let index = 0; index < chunks.length; index++) {
if (stop) {
return;
}
const chunck = chunks[index];
let responses;
if (chunck.length === 1) {
responses = [await tap.lwm2m.execute(chunck[0])];
}
else {
responses = await tap.service.interface.executeMultipleCalls(chunck);
}
emitter.next({
index,
responses,
});
}
emitter.complete();
}
catch (err) {
emitter.error(err);
}
})();
return () => {
stop = true;
};
});
}
function computeBodyLength(chunk) {
if (chunk.body !== undefined) {
if (chunk.body instanceof Uint8Array || chunk.body instanceof Buffer) {
return chunk.body.length;
}
else {
if (chunk.bodyEncoder) {
try {
const encoded = typeof chunk.bodyEncoder === 'function'
? chunk.bodyEncoder(chunk.body)
: chunk.bodyEncoder.encode(chunk.body);
return encoded.length;
}
catch (err) {
console.warn(`Filed to encode body to compute body length`, chunk, err);
return 0;
}
}
else {
console.warn(`Found body but no body encoder provider to this Tap request`, chunk);
return 0;
}
}
}
else {
return 0;
}
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"multi-requests-utility.js","sourceRoot":"","sources":["../../../../../../projects/iotize-ionic/src/lib/multi-requests/multi-requests-utility.ts"],"names":[],"mappings":"AAAA,OAAO,oCAAoC,CAAC;AAQ5C,OAAO,EAAE,MAAM,EAAE,MAAM,QAAQ,CAAC;AAChC,OAAO,EAAE,UAAU,EAAE,MAAM,MAAM,CAAC;AAElC,MAAM,CAAC,MAAM,oCAAoC,GAAG;IAClD,kBAAkB,EAAE,GAAG;IACvB,mBAAmB,EAAE,GAAG;CACzB,CAAC;AAOF,MAAM,UAAU,yBAAyB,CAAC,KAAsB;IAC9D,IAAI,UAAU,GAAG,iBAAiB,CAAC,KAAK,CAAC,CAAC;IAC1C,OAAO,CACL,CAAC,GAAG,iBAAiB;QACrB,CAAC,GAAG,aAAa;QACjB,UAAU,CACX,CAAC;AACJ,CAAC;AAED,MAAM,UAAU,qCAAqC,CACnD,KAA2D,EAC3D,QAAgB,CAAC,EACjB,EACE,mBAAmB,EACnB,kBAAkB,MAIhB,oCAAoC;IAExC,IAAI,qBAAqB,GAAG,CAAC,CAAC;IAC9B,IAAI,oBAAoB,GAAG,CAAC,CAAC;IAE7B,MAAM,MAAM,GAAsB,EAAE,CAAC;IACrC,IAAI,KAAK,IAAI,KAAK,CAAC,MAAM,EAAE;QACzB,OAAO;YACL,KAAK,EAAE,EAAE;YACT,SAAS,EAAE,SAAS;SACrB,CAAC;KACH;IACD,OAAO,KAAK,GAAG,KAAK,CAAC,MAAM,EAAE,KAAK,EAAE,EAAE;QACpC,MAAM,EAAE,IAAI,EAAE,gBAAgB,EAAE,GAAG,KAAK,CAAC,KAAK,CAAC,CAAC;QAChD,MAAM,kBAAkB,GAAG,yBAAyB,CAAC,IAAI,CAAC,CAAC;QAC3D,qBAAqB,IAAI,gBAAgB,GAAG,CAAC,CAAC;QAC9C,oBAAoB,IAAI,kBAAkB,CAAC;QAC3C,IACE,MAAM,CAAC,MAAM,GAAG,CAAC;YACjB,CAAC,qBAAqB,GAAG,mBAAmB;gBAC1C,oBAAoB,GAAG,kBAAkB,CAAC,EAC5C;YACA,OAAO;gBACL,KAAK,EAAE,MAAM;gBACb,SAAS,EAAE,KAAK;aACjB,CAAC;SACH;aAAM;YACL,MAAM,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC;SACnB;KACF;IACD,OAAO;QACL,SAAS,EAAE,SAAS;QACpB,KAAK,EAAE,MAAM;KACd,CAAC;AACJ,CAAC;AAED,MAAM,UAAU,yBAAyB,CACvC,KAA2D,EAC3D,UAGI,oCAAoC;IAExC,SAAS,YAAY;QACnB,IAAI,OAAO,GAAwB,EAAE,CAAC;QACtC,IAAI,SAAS,GAAuB,CAAC,CAAC;QACtC,OAAO,SAAS,KAAK,SAAS,EAAE;YAC9B,MAAM,SAAS,GAAG,qCAAqC,CACrD,KAAK,EACL,SAAS,EACT,OAAO,CACR,CAAC;YACF,SAAS,GAAG,SAAS,CAAC,SAAS,CAAC;YAChC,OAAO,CAAC,IAAI,CAAC,SAAS,CAAC,KAAK,CAAC,CAAC;SAC/B;QACD,OAAO,OAAO,CAAC;IACjB,CAAC;IAED,OAAO,YAAY,EAAE,CAAC;AACxB,CAAC;AAED,MAAM,UAAU,wCAAwC,CACtD,GAAQ,EACR,MAA2B;IAE3B,OAAO,IAAI,UAAU,CACnB,CAAC,OAAO,EAAE,EAAE;QACV,IAAI,IAAI,GAAG,KAAK,CAAC;QACjB,CAAC,KAAK,IAAI,EAAE;YACV,IAAI;gBACF,KAAK,IAAI,KAAK,GAAG,CAAC,EAAE,KAAK,GAAG,MAAM,CAAC,MAAM,EAAE,KAAK,EAAE,EAAE;oBAClD,IAAI,IAAI,EAAE;wBACR,OAAO;qBACR;oBACD,MAAM,MAAM,GAAG,MAAM,CAAC,KAAK,CAAC,CAAC;oBAC7B,IAAI,SAAiC,CAAC;oBACtC,IAAI,MAAM,CAAC,MAAM,KAAK,CAAC,EAAE;wBACvB,SAAS,GAAG,CAAC,MAAM,GAAG,CAAC,KAAK,CAAC,OAAO,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;qBAClD;yBAAM;wBACL,SAAS,GAAG,MAAM,GAAG,CAAC,OAAO,CAAC,SAAS,CAAC,oBAAoB,CAC1D,MAAM,CACP,CAAC;qBACH;oBACD,OAAO,CAAC,IAAI,CAAC;wBACX,KAAK;wBACL,SAAS;qBACV,CAAC,CAAC;iBACJ;gBACD,OAAO,CAAC,QAAQ,EAAE,CAAC;aACpB;YAAC,OAAO,GAAG,EAAE;gBACZ,OAAO,CAAC,KAAK,CAAC,GAAG,CAAC,CAAC;aACpB;QACH,CAAC,CAAC,EAAE,CAAC;QACL,OAAO,GAAG,EAAE;YACV,IAAI,GAAG,IAAI,CAAC;QACd,CAAC,CAAC;IACJ,CAAC,CACF,CAAC;AACJ,CAAC;AAED,SAAS,iBAAiB,CAAC,KAAgC;IACzD,IAAI,KAAK,CAAC,IAAI,KAAK,SAAS,EAAE;QAC5B,IAAI,KAAK,CAAC,IAAI,YAAY,UAAU,IAAI,KAAK,CAAC,IAAI,YAAY,MAAM,EAAE;YACpE,OAAO,KAAK,CAAC,IAAI,CAAC,MAAM,CAAC;SAC1B;aAAM;YACL,IAAI,KAAK,CAAC,WAAW,EAAE;gBACrB,IAAI;oBACF,MAAM,OAAO,GACX,OAAO,KAAK,CAAC,WAAW,KAAK,UAAU;wBACrC,CAAC,CAAC,KAAK,CAAC,WAAW,CAAC,KAAK,CAAC,IAAI,CAAC;wBAC/B,CAAC,CAAC,KAAK,CAAC,WAAW,CAAC,MAAM,CAAC,KAAK,CAAC,IAAI,CAAC,CAAC;oBAC3C,OAAO,OAAO,CAAC,MAAM,CAAC;iBACvB;gBAAC,OAAO,GAAG,EAAE;oBACZ,OAAO,CAAC,IAAI,CACV,6CAA6C,EAC7C,KAAK,EACL,GAAG,CACJ,CAAC;oBACF,OAAO,CAAC,CAAC;iBACV;aACF;iBAAM;gBACL,OAAO,CAAC,IAAI,CACV,6DAA6D,EAC7D,KAAK,CACN,CAAC;gBACF,OAAO,CAAC,CAAC;aACV;SACF;KACF;SAAM;QACL,OAAO,CAAC,CAAC;KACV;AACH,CAAC","sourcesContent":["import '@iotize/tap/service/impl/interface';\n\nimport {\n  serviceCallToString,\n  ServiceCallType,\n  Tap,\n  TapResponse,\n} from '@iotize/tap';\nimport { Buffer } from 'buffer';\nimport { Observable } from 'rxjs';\n\nexport const DEFAULT_TAP_REQUEST_MAX_SIZE_OPTIONS = {\n  maxRequestByteSize: 180,\n  maxResponseByteSize: 200,\n};\n\nexport interface FixedResponseBodySizeServiceCall<BodyType, ReturnType> {\n  call: ServiceCallType<BodyType, ReturnType>;\n  responseBodySize: number;\n}\n\nexport function computeTapRequestCallSize(chunk: ServiceCallType) {\n  let bodyLength = computeBodyLength(chunk);\n  return (\n    2 + // Request length\n    7 + // GET /A/B/C\n    bodyLength\n  );\n}\n\nexport function createSingleChunkMultiTapRequestCalls(\n  calls: FixedResponseBodySizeServiceCall<unknown, unknown>[],\n  index: number = 0,\n  {\n    maxResponseByteSize,\n    maxRequestByteSize,\n  }: {\n    maxResponseByteSize: number;\n    maxRequestByteSize: number;\n  } = DEFAULT_TAP_REQUEST_MAX_SIZE_OPTIONS\n) {\n  let totalResponseByteSize = 0;\n  let totalRequestByteSize = 0;\n\n  const chunck: ServiceCallType[] = [];\n  if (index >= calls.length) {\n    return {\n      calls: [],\n      nextIndex: undefined,\n    };\n  }\n  for (; index < calls.length; index++) {\n    const { call, responseBodySize } = calls[index];\n    const tapRequestByteSize = computeTapRequestCallSize(call);\n    totalResponseByteSize += responseBodySize + 2;\n    totalRequestByteSize += tapRequestByteSize;\n    if (\n      chunck.length > 0 &&\n      (totalResponseByteSize > maxResponseByteSize ||\n        totalRequestByteSize > maxRequestByteSize)\n    ) {\n      return {\n        calls: chunck,\n        nextIndex: index,\n      };\n    } else {\n      chunck.push(call);\n    }\n  }\n  return {\n    nextIndex: undefined,\n    calls: chunck,\n  };\n}\n\nexport function chunkMultiTapRequestCalls(\n  calls: FixedResponseBodySizeServiceCall<unknown, unknown>[],\n  options: {\n    maxRequestByteSize: number;\n    maxResponseByteSize: number;\n  } = DEFAULT_TAP_REQUEST_MAX_SIZE_OPTIONS\n): ServiceCallType[][] {\n  function encodeChunks(): ServiceCallType[][] {\n    let chuncks: ServiceCallType[][] = [];\n    let nextIndex: number | undefined = 0;\n    while (nextIndex !== undefined) {\n      const nextChunk = createSingleChunkMultiTapRequestCalls(\n        calls,\n        nextIndex,\n        options\n      );\n      nextIndex = nextChunk.nextIndex;\n      chuncks.push(nextChunk.calls);\n    }\n    return chuncks;\n  }\n\n  return encodeChunks();\n}\n\nexport function createMultiTapRequestCallChuncksExecutor(\n  tap: Tap,\n  chunks: ServiceCallType[][]\n) {\n  return new Observable<{ index: number; responses: TapResponse<unknown>[] }>(\n    (emitter) => {\n      let stop = false;\n      (async () => {\n        try {\n          for (let index = 0; index < chunks.length; index++) {\n            if (stop) {\n              return;\n            }\n            const chunck = chunks[index];\n            let responses: TapResponse<unknown>[];\n            if (chunck.length === 1) {\n              responses = [await tap.lwm2m.execute(chunck[0])];\n            } else {\n              responses = await tap.service.interface.executeMultipleCalls(\n                chunck\n              );\n            }\n            emitter.next({\n              index,\n              responses,\n            });\n          }\n          emitter.complete();\n        } catch (err) {\n          emitter.error(err);\n        }\n      })();\n      return () => {\n        stop = true;\n      };\n    }\n  );\n}\n\nfunction computeBodyLength(chunk: ServiceCallType<any, any>): number {\n  if (chunk.body !== undefined) {\n    if (chunk.body instanceof Uint8Array || chunk.body instanceof Buffer) {\n      return chunk.body.length;\n    } else {\n      if (chunk.bodyEncoder) {\n        try {\n          const encoded =\n            typeof chunk.bodyEncoder === 'function'\n              ? chunk.bodyEncoder(chunk.body)\n              : chunk.bodyEncoder.encode(chunk.body);\n          return encoded.length;\n        } catch (err) {\n          console.warn(\n            `Filed to encode body to compute body length`,\n            chunk,\n            err\n          );\n          return 0;\n        }\n      } else {\n        console.warn(\n          `Found body but no body encoder provider to this Tap request`,\n          chunk\n        );\n        return 0;\n      }\n    }\n  } else {\n    return 0;\n  }\n}\n"]}