github.com/makyo/juju@v0.0.0-20160425123129-2608902037e9/provider/common/provider.go (about)

     1  // Copyright 2015 Canonical Ltd.
     2  // Licensed under the AGPLv3, see LICENCE file for details.
     3  
     4  package common
     5  
     6  import (
     7  	"github.com/juju/errors"
     8  
     9  	"github.com/juju/juju/environs"
    10  	"github.com/juju/juju/environs/imagemetadata"
    11  )
    12  
    13  // DefaultProvider exposes the various common implementations found in
    14  // this package as methods of a single type. This facilitates treating
    15  // the implentations as a bundle, e.g. satisfying interfaces.
    16  type DefaultProvider struct {
    17  	// Env is the Juju environment that methods target.
    18  	Env environs.Environ
    19  }
    20  
    21  // BootstrapEnv bootstraps the Juju environment.
    22  func (dp DefaultProvider) BootstrapEnv(ctx environs.BootstrapContext, args environs.BootstrapParams) (*environs.BootstrapResult, error) {
    23  	result, err := Bootstrap(ctx, dp.Env, args)
    24  	if err != nil {
    25  		return nil, errors.Trace(err)
    26  	}
    27  	return result, nil
    28  }
    29  
    30  // DestroyEnv destroys the Juju environment.
    31  func (dp DefaultProvider) DestroyEnv() error {
    32  	if err := Destroy(dp.Env); err != nil {
    33  		return errors.Trace(err)
    34  	}
    35  	return nil
    36  }
    37  
    38  // SupportedArchitectures returns all the image architectures for env
    39  // matching the constraints.
    40  func (dp DefaultProvider) SupportedArchitectures(imageConstraint *imagemetadata.ImageConstraint) ([]string, error) {
    41  	arches, err := SupportedArchitectures(dp.Env, imageConstraint)
    42  	if err != nil {
    43  		return nil, errors.Trace(err)
    44  	}
    45  	return arches, nil
    46  }