Golang schema.Int函数代码示例

func importPortRangeV1(source map[string]interface{}) (*portRange, error) {
	fields := schema.Fields{
		"unit-name": schema.String(),
		"from-port": schema.Int(),
		"to-port":   schema.Int(),
		"protocol":  schema.String(),
	}

	checker := schema.FieldMap(fields, nil) // no defaults

	coerced, err := checker.Coerce(source, nil)
	if err != nil {
		return nil, errors.Annotatef(err, "port-range v1 schema check failed")
	}
	valid := coerced.(map[string]interface{})
	// From here we know that the map returned from the schema coercion
	// contains fields of the right type.

	return &portRange{
		UnitName_: valid["unit-name"].(string),
		FromPort_: int(valid["from-port"].(int64)),
		ToPort_:   int(valid["to-port"].(int64)),
		Protocol_: valid["protocol"].(string),
	}, nil
}

func importCloudImageMetadataV1(source map[string]interface{}) (*cloudimagemetadata, error) {
	fields := schema.Fields{
		"stream":            schema.String(),
		"region":            schema.String(),
		"version":           schema.String(),
		"series":            schema.String(),
		"arch":              schema.String(),
		"virt-type":         schema.String(),
		"root-storage-type": schema.String(),
		"root-storage-size": schema.Uint(),
		"date-created":      schema.Int(),
		"source":            schema.String(),
		"priority":          schema.Int(),
		"image-id":          schema.String(),
	}
	// Some values don't have to be there.
	defaults := schema.Defaults{
		"root-storage-size": schema.Omit,
	}
	checker := schema.FieldMap(fields, defaults)

	coerced, err := checker.Coerce(source, nil)
	if err != nil {
		return nil, errors.Annotatef(err, "cloudimagemetadata v1 schema check failed")
	}
	valid := coerced.(map[string]interface{})
	_, ok := valid["root-storage-size"]
	var pointerSize *uint64
	if ok {
		rootStorageSize := valid["root-storage-size"].(uint64)
		pointerSize = &rootStorageSize
	}

	cloudimagemetadata := &cloudimagemetadata{
		Stream_:          valid["stream"].(string),
		Region_:          valid["region"].(string),
		Version_:         valid["version"].(string),
		Series_:          valid["series"].(string),
		Arch_:            valid["arch"].(string),
		VirtType_:        valid["virt-type"].(string),
		RootStorageType_: valid["root-storage-type"].(string),
		RootStorageSize_: pointerSize,
		DateCreated_:     valid["date-created"].(int64),
		Source_:          valid["source"].(string),
		Priority_:        int(valid["priority"].(int64)),
		ImageId_:         valid["image-id"].(string),
	}

	return cloudimagemetadata, nil
}

func versionedEmbeddedChecker(name string) schema.Checker {
	fields := schema.Fields{
		"version": schema.Int(),
	}
	fields[name] = schema.StringMap(schema.Any())
	return schema.FieldMap(fields, nil) // no defaults
}

func importLinkLayerDeviceV1(source map[string]interface{}) (*linklayerdevice, error) {
	fields := schema.Fields{
		"provider-id":  schema.String(),
		"machine-id":   schema.String(),
		"name":         schema.String(),
		"mtu":          schema.Int(),
		"type":         schema.String(),
		"mac-address":  schema.String(),
		"is-autostart": schema.Bool(),
		"is-up":        schema.Bool(),
		"parent-name":  schema.String(),
	}
	// Some values don't have to be there.
	defaults := schema.Defaults{
		"provider-id": "",
	}
	checker := schema.FieldMap(fields, defaults)

	coerced, err := checker.Coerce(source, nil)
	if err != nil {
		return nil, errors.Annotatef(err, "linklayerdevice v1 schema check failed")
	}
	valid := coerced.(map[string]interface{})
	return &linklayerdevice{
		ProviderID_:  valid["provider-id"].(string),
		MachineID_:   valid["machine-id"].(string),
		Name_:        valid["name"].(string),
		MTU_:         uint(valid["mtu"].(int64)),
		Type_:        valid["type"].(string),
		MACAddress_:  valid["mac-address"].(string),
		IsAutoStart_: valid["is-autostart"].(bool),
		IsUp_:        valid["is-up"].(bool),
		ParentName_:  valid["parent-name"].(string),
	}, nil
}

func importRelationV1(source map[string]interface{}) (*relation, error) {
	fields := schema.Fields{
		"id":        schema.Int(),
		"key":       schema.String(),
		"endpoints": schema.StringMap(schema.Any()),
	}

	checker := schema.FieldMap(fields, nil) // no defaults

	coerced, err := checker.Coerce(source, nil)
	if err != nil {
		return nil, errors.Annotatef(err, "relation v1 schema check failed")
	}
	valid := coerced.(map[string]interface{})
	// From here we know that the map returned from the schema coercion
	// contains fields of the right type.
	result := &relation{
		Id_:  int(valid["id"].(int64)),
		Key_: valid["key"].(string),
	}

	endpoints, err := importEndpoints(valid["endpoints"].(map[string]interface{}))
	if err != nil {
		return nil, errors.Trace(err)
	}
	result.setEndpoints(endpoints)

	return result, nil
}

func importAgentToolsV1(source map[string]interface{}) (*agentTools, error) {
	fields := schema.Fields{
		"tools-version": schema.String(),
		"url":           schema.String(),
		"sha256":        schema.String(),
		"size":          schema.Int(),
	}
	checker := schema.FieldMap(fields, nil) // no defaults

	coerced, err := checker.Coerce(source, nil)
	if err != nil {
		return nil, errors.Annotatef(err, "agentTools v1 schema check failed")
	}
	valid := coerced.(map[string]interface{})
	// From here we know that the map returned from the schema coercion
	// contains fields of the right type.

	verString := valid["tools-version"].(string)
	toolsVersion, err := version.ParseBinary(verString)
	if err != nil {
		return nil, errors.Annotatef(err, "agentTools tools-version")
	}

	return &agentTools{
		Version_:      1,
		ToolsVersion_: toolsVersion,
		URL_:          valid["url"].(string),
		SHA256_:       valid["sha256"].(string),
		Size_:         valid["size"].(int64),
	}, nil
}

func (s *S) TestStringMap(c *gc.C) {
	s.sch = schema.StringMap(schema.Int())
	out, err := s.sch.Coerce(map[string]interface{}{"a": 1, "b": int8(2)}, aPath)
	c.Assert(err, gc.IsNil)
	c.Assert(out, gc.DeepEquals, map[string]interface{}{"a": int64(1), "b": int64(2)})

	out, err = s.sch.Coerce(42, aPath)
	c.Assert(out, gc.IsNil)
	c.Assert(err, gc.ErrorMatches, "<path>: expected map, got int\\(42\\)")

	out, err = s.sch.Coerce(nil, aPath)
	c.Assert(out, gc.IsNil)
	c.Assert(err, gc.ErrorMatches, "<path>: expected map, got nothing")

	out, err = s.sch.Coerce(map[int]int{1: 1}, aPath)
	c.Assert(out, gc.IsNil)
	c.Assert(err, gc.ErrorMatches, "<path>: expected string, got int\\(1\\)")

	out, err = s.sch.Coerce(map[string]bool{"a": true}, aPath)
	c.Assert(out, gc.IsNil)
	c.Assert(err, gc.ErrorMatches, `<path>\.a: expected int, got bool\(true\)`)

	// First path entry shouldn't have dots in an error message.
	out, err = s.sch.Coerce(map[string]bool{"a": true}, nil)
	c.Assert(out, gc.IsNil)
	c.Assert(err, gc.ErrorMatches, `a: expected int, got bool\(true\)`)
}

func versionedChecker(name string) schema.Checker {
	fields := schema.Fields{
		"version": schema.Int(),
	}
	if name != "" {
		fields[name] = schema.List(schema.StringMap(schema.Any()))
	}
	return schema.FieldMap(fields, nil) // no defaults
}

func (s *S) TestList(c *gc.C) {
	s.sch = schema.List(schema.Int())
	out, err := s.sch.Coerce([]int8{1, 2}, aPath)
	c.Assert(err, gc.IsNil)
	c.Assert(out, gc.DeepEquals, []interface{}{int64(1), int64(2)})

	out, err = s.sch.Coerce(42, aPath)
	c.Assert(out, gc.IsNil)
	c.Assert(err, gc.ErrorMatches, "<path>: expected list, got int\\(42\\)")

	out, err = s.sch.Coerce(nil, aPath)
	c.Assert(out, gc.IsNil)
	c.Assert(err, gc.ErrorMatches, "<path>: expected list, got nothing")

	out, err = s.sch.Coerce([]interface{}{1, true}, aPath)
	c.Assert(out, gc.IsNil)
	c.Assert(err, gc.ErrorMatches, `<path>\[1\]: expected int, got bool\(true\)`)
}

func (s *ConfigSuite) TestValidateUnknownAttrs(c *gc.C) {
	s.addJujuFiles(c)
	cfg, err := config.New(config.UseDefaults, map[string]interface{}{
		"name":    "myenv",
		"type":    "other",
		"uuid":    testing.ModelTag.Id(),
		"known":   "this",
		"unknown": "that",
	})
	c.Assert(err, jc.ErrorIsNil)

	// No fields: all attrs passed through.
	attrs, err := cfg.ValidateUnknownAttrs(nil, nil)
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(attrs, gc.DeepEquals, map[string]interface{}{
		"known":   "this",
		"unknown": "that",
	})

	// Valid field: that and other attrs passed through.
	fields := schema.Fields{"known": schema.String()}
	attrs, err = cfg.ValidateUnknownAttrs(fields, nil)
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(attrs, gc.DeepEquals, map[string]interface{}{
		"known":   "this",
		"unknown": "that",
	})

	// Default field: inserted.
	fields["default"] = schema.String()
	defaults := schema.Defaults{"default": "the other"}
	attrs, err = cfg.ValidateUnknownAttrs(fields, defaults)
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(attrs, gc.DeepEquals, map[string]interface{}{
		"known":   "this",
		"unknown": "that",
		"default": "the other",
	})

	// Invalid field: failure.
	fields["known"] = schema.Int()
	_, err = cfg.ValidateUnknownAttrs(fields, defaults)
	c.Assert(err, gc.ErrorMatches, `known: expected int, got string\("this"\)`)
}

func importEndpointV1(source map[string]interface{}) (*endpoint, error) {
	fields := schema.Fields{
		"service-name":  schema.String(),
		"name":          schema.String(),
		"role":          schema.String(),
		"interface":     schema.String(),
		"optional":      schema.Bool(),
		"limit":         schema.Int(),
		"scope":         schema.String(),
		"unit-settings": schema.StringMap(schema.StringMap(schema.Any())),
	}

	checker := schema.FieldMap(fields, nil) // No defaults.

	coerced, err := checker.Coerce(source, nil)
	if err != nil {
		return nil, errors.Annotatef(err, "endpoint v1 schema check failed")
	}
	valid := coerced.(map[string]interface{})
	// From here we know that the map returned from the schema coercion
	// contains fields of the right type.

	result := &endpoint{
		ServiceName_:  valid["service-name"].(string),
		Name_:         valid["name"].(string),
		Role_:         valid["role"].(string),
		Interface_:    valid["interface"].(string),
		Optional_:     valid["optional"].(bool),
		Limit_:        int(valid["limit"].(int64)),
		Scope_:        valid["scope"].(string),
		UnitSettings_: make(map[string]map[string]interface{}),
	}

	for unitname, settings := range valid["unit-settings"].(map[string]interface{}) {
		result.UnitSettings_[unitname] = settings.(map[string]interface{})
	}

	return result, nil
}

func (s *S) TestInt(c *gc.C) {
	s.sch = schema.Int()

	out, err := s.sch.Coerce(42, aPath)
	c.Assert(err, gc.IsNil)
	c.Assert(out, gc.Equals, int64(42))

	out, err = s.sch.Coerce(int8(42), aPath)
	c.Assert(err, gc.IsNil)
	c.Assert(out, gc.Equals, int64(42))

	out, err = s.sch.Coerce("42", aPath)
	c.Assert(err, gc.IsNil)
	c.Assert(out, gc.Equals, int64(42))

	out, err = s.sch.Coerce(true, aPath)
	c.Assert(out, gc.IsNil)
	c.Assert(err, gc.ErrorMatches, `<path>: expected int, got bool\(true\)`)

	out, err = s.sch.Coerce(nil, aPath)
	c.Assert(out, gc.IsNil)
	c.Assert(err, gc.ErrorMatches, "<path>: expected int, got nothing")
}

func (f *PromptingFiller) prompt(name string, attr environschema.Attr) (interface{}, error) {
	prompter := f.Prompter
	if prompter == nil {
		prompter = DefaultPrompter
	}
	tries := f.MaxTries
	if tries == 0 {
		tries = 3
	}
	for i := 0; i < tries; i++ {
		val, err := prompter.Prompt(name, attr)
		if err != nil {
			return nil, errgo.Notef(err, "cannot get input")
		}
		switch attr.Type {
		case environschema.Tbool:
			b, err := schema.Bool().Coerce(val, nil)
			if err == nil {
				return b, nil
			}
		case environschema.Tint:
			i, err := schema.Int().Coerce(val, nil)
			if err == nil {
				return i, nil
			}
		case environschema.Tstring:
			i, err := schema.String().Coerce(val, nil)
			if err == nil {
				return i, nil
			}
		default:
			return nil, errgo.Newf("unsupported attribute type %q", attr.Type)
		}
	}
	return nil, errgo.New("too many invalid inputs")
}

func importSubnetV1(source map[string]interface{}) (*subnet, error) {
	fields := schema.Fields{
		"cidr":                schema.String(),
		"provider-id":         schema.String(),
		"vlan-tag":            schema.Int(),
		"space-name":          schema.String(),
		"availability-zone":   schema.String(),
		"allocatable-ip-high": schema.String(),
		"allocatable-ip-low":  schema.String(),
	}

	defaults := schema.Defaults{
		"provider-id":         "",
		"allocatable-ip-high": "",
		"allocatable-ip-low":  "",
	}
	checker := schema.FieldMap(fields, defaults)

	coerced, err := checker.Coerce(source, nil)
	if err != nil {
		return nil, errors.Annotatef(err, "subnet v1 schema check failed")
	}
	valid := coerced.(map[string]interface{})

	// From here we know that the map returned from the schema coercion
	// contains fields of the right type.
	return &subnet{
		CIDR_:              valid["cidr"].(string),
		ProviderId_:        valid["provider-id"].(string),
		VLANTag_:           int(valid["vlan-tag"].(int64)),
		SpaceName_:         valid["space-name"].(string),
		AvailabilityZone_:  valid["availability-zone"].(string),
		AllocatableIPHigh_: valid["allocatable-ip-high"].(string),
		AllocatableIPLow_:  valid["allocatable-ip-low"].(string),
	}, nil
}

	if value == nil {
		return nil, nil
	}
	defer option.error(&err, name, value)
	if checker := optionTypeCheckers[option.Type]; checker != nil {
		if value, err = checker.Coerce(value, nil); err != nil {
			return nil, err
		}
		return value, nil
	}
	panic(fmt.Errorf("option %q has unknown type %q", name, option.Type))
}

var optionTypeCheckers = map[string]schema.Checker{
	"string":  schema.String(),
	"int":     schema.Int(),
	"float":   schema.Float(),
	"boolean": schema.Bool(),
}

// parse returns an appropriately-typed value for the supplied string, or
// returns an error if it cannot be parsed to the correct type.
func (option Option) parse(name, str string) (_ interface{}, err error) {
	defer option.error(&err, name, str)
	switch option.Type {
	case "string":
		return str, nil
	case "int":
		return strconv.ParseInt(str, 10, 64)
	case "float":
		return strconv.ParseFloat(str, 64)