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package com.c2kernel.lookup;
import java.util.Iterator;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.process.auth.Authenticator;
import com.c2kernel.property.Property;
import com.c2kernel.property.PropertyDescriptionList;
/**
* @author abranson
*
*/
public interface Lookup {
/**
* Connect to the directory using the credentials supplied in the Authenticator.
*
* @param user The connected Authenticator. The Lookup implementation may use the AuthObject in this to communicate with the database.
*/
public void open(Authenticator user);
/**
* Shutdown the lookup
*/
public void close();
// Path resolution
/**
* Fetch the correct subclass class of ItemPath for a particular Item, derived from its lookup entry.
* This is used by the CORBA Server to make sure the correct Item subclass is used.
*
* @param sysKey The system key of the Item
* @return an ItemPath or AgentPath
* @throws InvalidItemPathException When the system key is invalid/out-of-range
* @throws ObjectNotFoundException When the Item does not exist in the directory.
*/
public ItemPath getItemPath(String sysKey) throws InvalidItemPathException, ObjectNotFoundException;
/**
* Find the ItemPath for which a DomainPath is an alias.
*
* @param domainPath The path to resolve
* @return The ItemPath it points to (should be an AgentPath if the path references an Agent)
* @throws InvalidItemPathException
* @throws ObjectNotFoundException
*/
public ItemPath resolvePath(DomainPath domainPath) throws InvalidItemPathException, ObjectNotFoundException;
/**
* Resolve a path to a CORBA Object Item or Agent
*
* @param path The path to be resolved
* @return The CORBA Object
* @throws ObjectNotFoundException When the Path doesn't exist, or doesn't have an IOR associated with it
*/
public org.omg.CORBA.Object resolve(Path path) throws ObjectNotFoundException;
// Path finding and searching
/**
* Checks if a particular Path exists in the directory
* @param path The path to check
* @return boolean true if the path exists, false if it doesn't
*/
public boolean exists(Path path);
/**
* List the next-level-deep children of a Path
*
* @param path The parent Path
* @return An Iterator of child Paths
*/
public Iterator<Path> getChildren(Path path);
/**
* Find a path with a particular name (last component)
*
* @param start Search root
* @param name The name to search for
* @return An Iterator of matching Paths. Should be an empty Iterator if there are no matches.
*/
public Iterator<Path> search(Path start, String name);
/**
* Search for Items in the specified path with the given property name and value
* @param start Search root
* @param propname Property name
* @param propvalue The property value to search for
* @return An Iterator of matching Paths
*/
public Iterator<Path> search(Path start, Property... props);
/**
* Search for Items of a particular type, based on its PropertyDescription outcome
* @param start Search root
* @param props Properties unmarshalled from an ItemDescription's property description outcome.
* @return An Iterator of matching Paths
*/
public Iterator<Path> search(Path start, PropertyDescriptionList props);
/**
* Find all DomainPaths that are aliases for a particular Item or Agent
* @param itemPath The ItemPath
* @return An Iterator of DomainPaths that are aliases for that Item
*/
public Iterator<Path> searchAliases(ItemPath itemPath);
// Role and agent management
/**
* @param agentName
* @return
* @throws ObjectNotFoundException
*/
public AgentPath getAgentPath(String agentName) throws ObjectNotFoundException;
/**
* @param roleName
* @return
* @throws ObjectNotFoundException
*/
public RolePath getRolePath(String roleName) throws ObjectNotFoundException;
/**
* @param rolePath
* @return
* @throws ObjectNotFoundException
*/
public AgentPath[] getAgents(RolePath rolePath) throws ObjectNotFoundException;
/**
* @param agentPath
* @return
*/
public RolePath[] getRoles(AgentPath agentPath);
/**
* Returns all of the Agents in this centre who hold this role (including sub-roles)
*
* @param agentPath
* @param role
* @return
*/
public boolean hasRole(AgentPath agentPath, RolePath role);
/**
* @param agentPath
* @return
* @throws ObjectNotFoundException
*/
public String getAgentName(AgentPath agentPath) throws ObjectNotFoundException;
}
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