org.gcube.vremanagement.resourcebroker.utils.serialization.types.requirements
Class Requirement
java.lang.Object
org.gcube.vremanagement.resourcebroker.utils.serialization.types.requirements.Requirement
public class Requirement
- extends java.lang.Object
When requiring a new deployment plan to the ResourceBroker service, the
org.gcube.vremanagement.resourcebroker.impl.services.BrokerService#getPlan(String)
method is activated.
This method requires the String consisting of the XML representation of a deployment
request coming from the VRE Manager. Aside, it is offered the possibility to express
requirements on the GHN to choose for a deployment plan. The requirements are so expressed
by instantiating Requirement
class.
Usage samples:
// To require a GHN running on Linux OS.
new Requirement(RequirementElemPath.OS, RequirementElemType.STRING , "Linux", RequirementRelationType.EQUAL),
// Requires that the GHN is deployed on a machine inside the isti.cnr.it domain
new Requirement(RequirementElemPath.HOST, RequirementElemType.STRING , "isti.cnr.it", RequirementRelationType.CONTAINS),
// Requires a machine having a CPU with at least 5000 bogomips.
new Requirement(RequirementElemPath.PROCESSOR_BOGOMIPS, RequirementElemType.NUMBER , "5000", RequirementRelationType.GREATER_OR_EQUAL)
- Author:
- Daniele Strollo (ISTI-CNR)
Field Summary |
static java.lang.String |
NODE_TAG
|
Methods inherited from class java.lang.Object |
getClass, notify, notifyAll, toString, wait, wait, wait |
NODE_TAG
public static final java.lang.String NODE_TAG
- See Also:
- Constant Field Values
Requirement
public Requirement(RequirementElemPath elem,
RequirementRelationType relType,
java.lang.String value)
- Creates a new requirement.
Requirement
public Requirement(RequirementElemPath elem,
java.lang.String value)
Requirement
public Requirement(RequirementElemPath elem,
java.lang.String key,
RequirementRelationType relType,
java.lang.String value)
- This constructor is instead used for only environmental variable to check
- That a key is present in the environmental variables of GHN descriptor. In a such case the associated value must be null. Usage:
new Requirement(RequirementElemPath.RUNTIME_ENV, RequirementElemType.STRING , "GLOBUS_OPTIONS", null, RequirementRelationType.EQUAL)
- That both (key, value) couple is exactly equals to the parameters. Usage:
new Requirement(RequirementElemPath.RUNTIME_ENV, RequirementElemType.STRING , "ANT_HOME", "/usr/share/ant", RequirementRelationType.EQUAL),
- That both (key, value) couple where the key is exactly equals to the key parameter and the value contains the element passed as value parameter. Usage:
new Requirement(RequirementElemPath.RUNTIME_ENV, RequirementElemType.STRING , "ANT_HOME", "/ant", RequirementRelationType.CONTAINS),
- Parameters:
value
- if the value is NULL it is assumed a containsKey operator. No comparison on the value will be done.
getElem
public RequirementElemPath getElem()
getValue
public java.lang.String getValue()
getKey
public java.lang.String getKey()
setKey
public void setKey(java.lang.String key)
getRelType
public RequirementRelationType getRelType()
getEvalString
public java.lang.String getEvalString()
hashCode
public final int hashCode()
- Overrides:
hashCode
in class java.lang.Object
equals
public final boolean equals(java.lang.Object obj)
- Overrides:
equals
in class java.lang.Object