本文整理汇总了TypeScript中@nteract/core.actions.launchKernelFailed方法的典型用法代码示例。如果您正苦于以下问题：TypeScript actions.launchKernelFailed方法的具体用法？TypeScript actions.launchKernelFailed怎么用？TypeScript actions.launchKernelFailed使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类@nteract/core.actions的用法示例。
在下文中一共展示了actions.launchKernelFailed方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: map
map(specs => {
const kernelSpec = specs[action.payload.kernelSpecName];
if (kernelSpec) {
// Defer to a launchKernel action to _actually_ launch
return actions.launchKernel({
contentRef: action.payload.contentRef,
cwd: action.payload.cwd,
kernelRef: action.payload.kernelRef,
kernelSpec,
selectNextKernel: action.payload.selectNextKernel
});
} else {
return actions.launchKernelFailed({
contentRef: action.payload.contentRef,
error: new Error(
`A kernel named ${
action.payload.kernelSpecName
} does not appear to be available. Try installing the ${
action.payload.kernelSpecName
} kernelspec or selecting a kernel from the runtime menu.`
),
kernelRef: action.payload.kernelRef
});
}
})示例2: catchError
catchError((error: Error) =>
of(
actions.launchKernelFailed({
error,
kernelRef: action.payload.kernelRef,
contentRef: action.payload.contentRef
})
)示例3: switchMap
switchMap((action: actions.LaunchKernelAction) => {
if (
!action.payload ||
!action.payload.kernelSpec ||
!action.payload.kernelRef
) {
return of(
actions.launchKernelFailed({
error: new Error("launchKernel needs a kernelSpec and a kernelRef"),
kernelRef: action.payload && action.payload.kernelRef,
contentRef: action.payload.contentRef
})
);
}
ipc.send("nteract:ping:kernel", action.payload.kernelSpec);
const oldKernelRef = selectors.currentKernelRef(state$.value);
// Kill the old kernel by emitting the action to kill it if it exists
let cleanupOldKernel$:
| Observable<never>
| Observable<actions.KillKernelAction> = empty();
if (oldKernelRef && oldKernelRef !== action.payload.kernelRef) {
cleanupOldKernel$ = of(
actions.killKernel({ restarting: false, kernelRef: oldKernelRef })
);
}
return merge(
launchKernelObservable(
action.payload.kernelSpec,
action.payload.cwd,
action.payload.kernelRef,
action.payload.contentRef
),
// Was there a kernel before (?) -- kill it if so, otherwise nothing else
cleanupOldKernel$
).pipe(
catchError((error: Error) =>
of(
actions.launchKernelFailed({
error,
kernelRef: action.payload.kernelRef,
contentRef: action.payload.contentRef
})
)
)
);
}),