Golang utils.PartParser函數代碼示例

func (daemon *Daemon) RegisterLinks(container *Container, hostConfig *runconfig.HostConfig) error {
	if hostConfig != nil && hostConfig.Links != nil {
		for _, l := range hostConfig.Links {
			parts, err := utils.PartParser("name:alias", l)
			if err != nil {
				return err
			}
			child, err := daemon.GetByName(parts["name"])
			if err != nil {
				return err
			}
			if child == nil {
				return fmt.Errorf("Could not get container for %s", parts["name"])
			}
			if err := daemon.RegisterLink(container, child, parts["alias"]); err != nil {
				return err
			}
		}

		// After we load all the links into the daemon
		// set them to nil on the hostconfig
		hostConfig.Links = nil
		if err := container.WriteHostConfig(); err != nil {
			return err
		}
	}
	return nil
}

// We will receive port specs in the format of ip:public:private/proto and these need to be
// parsed in the internal types
func ParsePortSpecs(ports []string) (map[Port]struct{}, map[Port][]PortBinding, error) {
	var (
		exposedPorts = make(map[Port]struct{}, len(ports))
		bindings     = make(map[Port][]PortBinding)
	)

	for _, rawPort := range ports {
		proto := "tcp"

		if i := strings.LastIndex(rawPort, "/"); i != -1 {
			proto = rawPort[i+1:]
			rawPort = rawPort[:i]
		}
		if !strings.Contains(rawPort, ":") {
			rawPort = fmt.Sprintf("::%s", rawPort)
		} else if len(strings.Split(rawPort, ":")) == 2 {
			rawPort = fmt.Sprintf(":%s", rawPort)
		}

		parts, err := utils.PartParser(PortSpecTemplate, rawPort)
		if err != nil {
			return nil, nil, err
		}

		var (
			containerPort = parts["containerPort"]
			rawIp         = parts["ip"]
			hostPort      = parts["hostPort"]
		)

		if containerPort == "" {
			return nil, nil, fmt.Errorf("No port specified: %s<empty>", rawPort)
		}
		if _, err := strconv.ParseUint(containerPort, 10, 16); err != nil {
			return nil, nil, fmt.Errorf("Invalid containerPort: %s", containerPort)
		}
		if _, err := strconv.ParseUint(hostPort, 10, 16); hostPort != "" && err != nil {
			return nil, nil, fmt.Errorf("Invalid hostPort: %s", hostPort)
		}
		if !validateProto(proto) {
			return nil, nil, fmt.Errorf("Invalid proto: %s", proto)
		}

		port := NewPort(proto, containerPort)
		if _, exists := exposedPorts[port]; !exists {
			exposedPorts[port] = struct{}{}
		}

		binding := PortBinding{
			HostIp:   rawIp,
			HostPort: hostPort,
		}
		bslice, exists := bindings[port]
		if !exists {
			bslice = []PortBinding{}
		}
		bindings[port] = append(bslice, binding)
	}
	return exposedPorts, bindings, nil
}

// We will receive port specs in the format of ip:public:private/proto and these need to be
// parsed in the internal types
func parsePortSpecs(ports []string) (map[Port]struct{}, map[Port][]PortBinding, error) {
	exposedPorts := make(map[Port]struct{}, len(ports))
	bindings := make(map[Port][]PortBinding)

	for _, rawPort := range ports {
		proto := "tcp"
		if i := strings.LastIndex(rawPort, "/"); i != -1 {
			proto = rawPort[i+1:]
			rawPort = rawPort[:i]
		}
		if !strings.Contains(rawPort, ":") {
			rawPort = fmt.Sprintf("::%s", rawPort)
		} else if len(strings.Split(rawPort, ":")) == 2 {
			rawPort = fmt.Sprintf(":%s", rawPort)
		}

		parts, err := utils.PartParser("ip:hostPort:containerPort", rawPort)
		if err != nil {
			return nil, nil, err
		}
		containerPort := parts["containerPort"]
		rawIp := parts["ip"]
		hostPort := parts["hostPort"]

		if containerPort == "" {
			return nil, nil, fmt.Errorf("No port specified: %s<empty>", rawPort)
		}

		port := NewPort(proto, containerPort)
		if _, exists := exposedPorts[port]; !exists {
			exposedPorts[port] = struct{}{}
		}

		binding := PortBinding{
			HostIp:   rawIp,
			HostPort: hostPort,
		}
		bslice, exists := bindings[port]
		if !exists {
			bslice = []PortBinding{}
		}
		bindings[port] = append(bslice, binding)
	}
	return exposedPorts, bindings, nil
}

// Links come in the format of
// name:alias
func parseLink(rawLink string) (map[string]string, error) {
	return utils.PartParser("name:alias", rawLink)
}

func ValidateLink(val string) (string, error) {
	if _, err := utils.PartParser("name:alias", val); err != nil {
		return val, err
	}
	return val, nil
}