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node-spearhead/lib/errors.js

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/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
/*
* Copyright 2016 Joyent, Inc.
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*
* Error classes that the joyent CLI may produce.
*/
var util = require('util'),
format = util.format;
var assert = require('assert-plus');
var verror = require('verror'),
VError = verror.VError,
WError = verror.WError;
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// ---- error classes
/**
* Base error. Instances will always have a string `message` and
* a string `code` (a CamelCase string).
*/
function _TritonBaseVError(opts) {
assert.object(opts, 'opts');
assert.string(opts.message, 'opts.message');
assert.optionalString(opts.code, 'opts.code');
assert.optionalObject(opts.cause, 'opts.cause');
assert.optionalNumber(opts.statusCode, 'opts.statusCode');
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var self = this;
/*
* If the given cause has `body.errors` a la
* https://github.com/joyent/eng/blob/master/docs/index.md#error-handling
* then lets add text about those specifics to the error message.
*/
var message = opts.message;
if (opts.cause && opts.cause.body && opts.cause.body.errors) {
opts.cause.body.errors.forEach(function (e) {
message += format('\n %s: %s', e.field, e.code);
if (e.message) {
message += ': ' + e.message;
}
});
}
var veArgs = [];
if (opts.cause) veArgs.push(opts.cause);
veArgs.push(message);
VError.apply(this, veArgs);
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var extra = Object.keys(opts).filter(
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function (k) { return ['cause', 'message'].indexOf(k) === -1; });
extra.forEach(function (k) {
self[k] = opts[k];
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});
}
util.inherits(_TritonBaseVError, VError);
/*
* Base error class that doesn't include a 'cause' message in its message.
* This is useful in cases where we are wrapping CloudAPI errors with
* onces that should *replace* the CloudAPI error message.
*/
function _TritonBaseWError(opts) {
assert.object(opts, 'opts');
assert.string(opts.message, 'opts.message');
assert.optionalString(opts.code, 'opts.code');
assert.optionalObject(opts.cause, 'opts.cause');
assert.optionalNumber(opts.statusCode, 'opts.statusCode');
var self = this;
var weArgs = [];
if (opts.cause) weArgs.push(opts.cause);
weArgs.push(opts.message);
WError.apply(this, weArgs);
var extra = Object.keys(opts).filter(
function (k) { return ['cause', 'message'].indexOf(k) === -1; });
extra.forEach(function (k) {
self[k] = opts[k];
});
}
util.inherits(_TritonBaseWError, WError);
/*
* A generic (i.e. a cop out) code-less error.
*
* Usage:
* new TritonError(<message>)
* new TritonError(<cause>, <message>)
*/
function TritonError(cause, message) {
if (message === undefined) {
message = cause;
cause = undefined;
}
assert.string(message);
_TritonBaseVError.call(this, {
cause: cause,
message: message,
exitStatus: 1
});
}
util.inherits(TritonError, _TritonBaseVError);
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function InternalError(cause, message) {
if (message === undefined) {
message = cause;
cause = undefined;
}
assert.string(message);
_TritonBaseVError.call(this, {
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cause: cause,
message: message,
code: 'InternalError',
exitStatus: 1
});
}
util.inherits(InternalError, _TritonBaseVError);
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/**
* CLI usage error
*/
function ConfigError(cause, message) {
if (message === undefined) {
message = cause;
cause = undefined;
}
assert.string(message);
_TritonBaseVError.call(this, {
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cause: cause,
message: message,
code: 'Config',
exitStatus: 1
});
}
util.inherits(ConfigError, _TritonBaseVError);
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/**
* CLI usage error
*/
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function UsageError(cause, message) {
if (message === undefined) {
message = cause;
cause = undefined;
}
assert.string(message);
_TritonBaseVError.call(this, {
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cause: cause,
message: message,
code: 'Usage',
exitStatus: 2
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});
}
util.inherits(UsageError, _TritonBaseVError);
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/**
* An error signing a request.
*/
function SigningError(cause) {
_TritonBaseVError.call(this, {
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cause: cause,
message: 'error signing request',
code: 'Signing',
exitStatus: 1
});
}
util.inherits(SigningError, _TritonBaseVError);
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/**
* A 'DEPTH_ZERO_SELF_SIGNED_CERT' An error signing a request.
*/
function SelfSignedCertError(cause, url) {
assert.string(url, 'url');
var msg = format('could not access CloudAPI %s because it uses a ' +
'self-signed TLS certificate and your current profile is not ' +
'configured for insecure access', url);
_TritonBaseVError.call(this, {
cause: cause,
message: msg,
code: 'SelfSignedCert',
exitStatus: 1
});
}
util.inherits(SelfSignedCertError, _TritonBaseVError);
/**
* A timeout was reached waiting/polling for something.
*/
function TimeoutError(cause, msg) {
if (msg === undefined) {
msg = cause;
cause = undefined;
}
assert.string(msg, 'msg');
_TritonBaseVError.call(this, {
cause: cause,
message: msg,
code: 'Timeout',
exitStatus: 1
});
}
util.inherits(TimeoutError, _TritonBaseVError);
/**
* A resource (instance, image, ...) was not found.
*/
function ResourceNotFoundError(cause, msg) {
if (msg === undefined) {
msg = cause;
cause = undefined;
}
_TritonBaseWError.call(this, {
cause: cause,
message: msg,
code: 'ResourceNotFound',
exitStatus: 3
});
}
util.inherits(ResourceNotFoundError, _TritonBaseWError);
/**
* An instance was deleted.
*/
function InstanceDeletedError(cause, msg) {
if (msg === undefined) {
msg = cause;
cause = undefined;
}
_TritonBaseWError.call(this, {
cause: cause,
message: msg,
code: 'InstanceDeleted',
exitStatus: 3
});
}
util.inherits(InstanceDeletedError, _TritonBaseWError);
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/**
* Multiple errors in a group.
*/
function MultiError(errs) {
assert.arrayOfObject(errs, 'errs');
var lines = [format('multiple (%d) errors', errs.length)];
for (var i = 0; i < errs.length; i++) {
var err = errs[i];
lines.push(format(' error (%s): %s', err.code, err.message));
}
_TritonBaseVError.call(this, {
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cause: errs[0],
message: lines.join('\n'),
code: 'MultiError',
exitStatus: 1
});
}
MultiError.description = 'Multiple errors.';
util.inherits(MultiError, _TritonBaseVError);
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// ---- exports
module.exports = {
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TritonError: TritonError,
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InternalError: InternalError,
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ConfigError: ConfigError,
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UsageError: UsageError,
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SigningError: SigningError,
SelfSignedCertError: SelfSignedCertError,
TimeoutError: TimeoutError,
ResourceNotFoundError: ResourceNotFoundError,
InstanceDeletedError: InstanceDeletedError,
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MultiError: MultiError
};
// vim: set softtabstop=4 shiftwidth=4: