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java.lang.Objectorg.apache.cassandra.locator.AbstractEndpointSnitch
org.apache.cassandra.locator.DatacenterEndPointSnitch
public class DatacenterEndPointSnitch
DataCenterEndPointSnitch
This class basically reads the configuration and sets the IP Ranges to a hashMap which can be read later. this class also provides a way to compare 2 EndPoints and also get details from the same.
Constructor Summary | |
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DatacenterEndPointSnitch()
Constructor, intialize XML config and read the config in... |
Method Summary | |
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java.lang.String |
getLocation(java.net.InetAddress endpoint)
Determines the name of the datacenter this endpoint lives in. |
java.util.HashMap<java.lang.String,java.lang.Integer> |
getMapQuorumFactor()
Returns a DC replication map, the key will be the dc name and the value will be the replication factor of that Datacenter. |
java.util.HashMap<java.lang.String,java.lang.Integer> |
getMapReplicationFactor()
Returns a DC replication map, the key will be the dc name and the value will be the replication factor of that Datacenter. |
java.lang.String |
getRackForEndPoint(java.net.InetAddress endPoint)
Return the rack for which an endpoint resides in |
static byte |
intToByte(int n)
|
boolean |
isInSameDataCenter(java.net.InetAddress host,
java.net.InetAddress host2)
This methood will return ture if the hosts are in the same DC else false. |
boolean |
isOnSameRack(java.net.InetAddress host,
java.net.InetAddress host2)
This methood will return ture if the hosts are in the same RAC else false. |
void |
reloadConfiguration()
This method will load the configuration from the xml file. |
Methods inherited from class org.apache.cassandra.locator.AbstractEndpointSnitch |
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getSortedListByProximity, sortByProximity |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public DatacenterEndPointSnitch() throws java.io.IOException, javax.xml.parsers.ParserConfigurationException, org.xml.sax.SAXException
java.io.IOException
javax.xml.parsers.ParserConfigurationException
org.xml.sax.SAXException
Method Detail |
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public java.lang.String getRackForEndPoint(java.net.InetAddress endPoint) throws java.net.UnknownHostException
java.net.UnknownHostException
public void reloadConfiguration() throws java.io.IOException
java.io.IOException
public boolean isOnSameRack(java.net.InetAddress host, java.net.InetAddress host2) throws java.net.UnknownHostException
isOnSameRack
in class AbstractEndpointSnitch
host
- a specified endpointhost2
- another specified endpoint
java.net.UnknownHostException
public boolean isInSameDataCenter(java.net.InetAddress host, java.net.InetAddress host2) throws java.net.UnknownHostException
isInSameDataCenter
in class AbstractEndpointSnitch
host
- a specified endpointhost2
- another specified endpoint
java.net.UnknownHostException
public java.util.HashMap<java.lang.String,java.lang.Integer> getMapReplicationFactor()
public java.util.HashMap<java.lang.String,java.lang.Integer> getMapQuorumFactor()
public static byte intToByte(int n)
public java.lang.String getLocation(java.net.InetAddress endpoint) throws java.net.UnknownHostException
AbstractEndpointSnitch
getLocation
in class AbstractEndpointSnitch
java.net.UnknownHostException
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