Class: OpenNebula::Datastore

Inherits:

PoolElement

• Object
• XMLElement
• PoolElement
• OpenNebula::Datastore

show all

Defined in:

opennebula/datastore.rb

Constant Summary

DATASTORE_METHODS =

Constants and Class Methods

{
    :info       => "datastore.info",
    :allocate   => "datastore.allocate",
    :delete     => "datastore.delete",
    :update     => "datastore.update",
    :chown      => "datastore.chown",
    :chmod      => "datastore.chmod"
}

DATASTORE_TYPES =

%w{IMAGE SYSTEM FILE}

SHORT_DATASTORE_TYPES =

{
    "IMAGE" => "img",
    "SYSTEM"=> "sys",
    "FILE"  => "fil"
}

Class Method Summary (collapse)

• + (Object) build_xml(pe_id = nil)

  Creates a Datastore description with just its identifier this method should be used to create plain Datastore objects.

Instance Method Summary (collapse)

• - (Integer, OpenNebula::Error) allocate(description, cluster_id = ClusterPool::NONE_CLUSTER_ID)

  Allocates a new Datastore in OpenNebula.

• - (nil, OpenNebula::Error) chmod(owner_u, owner_m, owner_a, group_u, group_m, group_a, other_u, other_m, other_a)

  Changes the datastore permissions.

• - (nil, OpenNebula::Error) chmod_octet(octet)

  Changes the datastore permissions.

• - (nil, OpenNebula::Error) chown(uid, gid)

  Changes the owner/group.

• - (Object) contains(id)

  Returns whether or not the image with id 'id' is part of this datastore.

• - (Object) delete

  Deletes the Datastore.

• - (Object) img_ids

  Returns an array with the numeric image ids.

• - (Object) info (also: #info!)

  Retrieves the information of the given Datastore.

• - (Datastore) initialize(xml, client) constructor

  Class constructor.

• - (Object) short_type_str

  Returns the datastore type (string value).

• - (Object) type

  XML-RPC Methods for the Datastore Object.

• - (Object) type_str

  Returns the datastore type (string value).

• - (nil, OpenNebula::Error) update(new_template, append = false)

  Replaces the template contents.

Methods inherited from PoolElement

#id, #name, new_with_id, #to_str

Methods inherited from XMLElement

#[], #add_element, #attr, #delete_element, #each, #each_xpath, #element_xml, #has_elements?, #initialize_xml, #name, #retrieve_elements, #template_like_str, #template_str, #template_xml, #text, #to_hash, #to_xml

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# File 'opennebula/datastore.rb', line 61

def initialize(xml, client)
    super(xml,client)
end

datastore = Datastore.new(Datastore.build_xml(3),rpc_client)

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# File 'opennebula/datastore.rb', line 50

def Datastore.build_xml(pe_id=nil)
    if pe_id
        datastore_xml = "<DATASTORE><ID>#{pe_id}</ID></DATASTORE>"
    else
        datastore_xml = "<DATASTORE></DATASTORE>"
    end

    XMLElement.build_xml(datastore_xml,'DATASTORE')
end

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# File 'opennebula/datastore.rb', line 97

def allocate(description, cluster_id=ClusterPool::NONE_CLUSTER_ID)
    super(DATASTORE_METHODS[:allocate], description, cluster_id)
end

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# File 'opennebula/datastore.rb', line 143

def chmod(owner_u, owner_m, owner_a, group_u, group_m, group_a, other_u,
        other_m, other_a)
    super(DATASTORE_METHODS[:chmod], owner_u, owner_m, owner_a, group_u,
        group_m, group_a, other_u, other_m, other_a)
end

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# File 'opennebula/datastore.rb', line 134

def chmod_octet(octet)
    super(DATASTORE_METHODS[:chmod], octet)
end

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# File 'opennebula/datastore.rb', line 125

def chown(uid, gid)
    super(DATASTORE_METHODS[:chown], uid, gid)
end

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# File 'opennebula/datastore.rb', line 154

def contains(id)
    #This doesn't work in ruby 1.8.5
    #return self["DATASTORE/ID[.=#{uid}]"] != nil

    id_array = retrieve_elements('IMAGES/ID')
    return id_array != nil && id_array.include?(uid.to_s)
end

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# File 'opennebula/datastore.rb', line 102

def delete()
    super(DATASTORE_METHODS[:delete])
end

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# File 'opennebula/datastore.rb', line 163

def img_ids
    array = Array.new

    self.each("IMAGES/ID") do |id|
        array << id.text.to_i
    end

    return array
end

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# File 'opennebula/datastore.rb', line 84

def info()
    super(DATASTORE_METHODS[:info], 'DATASTORE')
end

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# File 'opennebula/datastore.rb', line 79

def short_type_str
    SHORT_DATASTORE_TYPES[type_str]
end

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# File 'opennebula/datastore.rb', line 69

def type
    self['TYPE'].to_i
end

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# File 'opennebula/datastore.rb', line 74

def type_str
    DATASTORE_TYPES[type]
end

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# File 'opennebula/datastore.rb', line 114

def update(new_template, append=false)
    super(DATASTORE_METHODS[:update], new_template, append ? 1 : 0)
end