com.bradmcevoy.http.quota
Class DefaultStorageChecker

java.lang.Object
  com.bradmcevoy.http.quota.DefaultStorageChecker

All Implemented Interfaces:

StorageChecker

public class DefaultStorageChecker
extends java.lang.Object
implements StorageChecker

Default storage checking mechanism checks to see if the nearest parent resource implements QuotaResource, and if so uses the available bytes property from that to determine whether to allow a PUT Note that there is not always information available giving the size of new content, and in the case of replacing an existing resource, we might not have that resource's size. In these cases we cant determine perfectly whether we should allow or reject a PUT request. So we allow these requests if the available storage is greater then zero, but disallow if less then or equal to zero.

Author:

brad

Nested Class Summary

Nested classes/interfaces inherited from interface com.bradmcevoy.http.quota.StorageChecker

StorageChecker.StorageErrorReason

Constructor Summary

DefaultStorageChecker()

Method Summary

StorageChecker.StorageErrorReason	checkStorageOnAdd(Request request, CollectionResource nearestParent, Path parentPath, java.lang.String host) Check to see if the operation should be allowed, when there is no existing resource.
StorageChecker.StorageErrorReason	checkStorageOnReplace(Request request, CollectionResource parent, Resource replaced, java.lang.String host) Check to see if the operation should be allowed, when an existing resource is to be overwritten or replaced.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultStorageChecker

public DefaultStorageChecker()

Method Detail

checkStorageOnReplace

public StorageChecker.StorageErrorReason checkStorageOnReplace(Request request,
                                                               CollectionResource parent,
                                                               Resource replaced,
                                                               java.lang.String host)

Description copied from interface: StorageChecker

Check to see if the operation should be allowed, when an existing resource is to be overwritten or replaced.

Specified by:

checkStorageOnReplace in interface StorageChecker

replaced - - the resource being replaced

Returns:

- null if the operation should proceed, otherwise a reason for the error

checkStorageOnAdd

public StorageChecker.StorageErrorReason checkStorageOnAdd(Request request,
                                                           CollectionResource nearestParent,
                                                           Path parentPath,
                                                           java.lang.String host)

Description copied from interface: StorageChecker

Check to see if the operation should be allowed, when there is no existing resource. The parent collection may or may not exist, so only its path is provided.

Specified by:

checkStorageOnAdd in interface StorageChecker

parentPath - - the path to the parent collection. E.g. http://abc.com/path = /path

Returns:

- null if the operation should proceed, or the reason for the failure