com.microsoft.windowsazure.services.blob.models.AccessCondition Maven / Gradle / Ivy
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/**
* Copyright 2011 Microsoft Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.microsoft.windowsazure.services.blob.models;
import java.util.Date;
import com.microsoft.windowsazure.services.blob.implementation.RFC1123DateConverter;
/**
* Represents a set of access conditions to be used for operations against the storage services.
*/
public final class AccessCondition {
/**
* Specifies that no access condition is set.
*/
public static final AccessCondition NONE = new AccessCondition(AccessConditionHeaderType.NONE, null);
/**
* Returns an access condition such that an operation will be performed only if the resource's ETag value matches
* the specified ETag value.
*
* Setting this access condition modifies the request to include the HTTP If-Match conditional header. If
* this access condition is set, the operation is performed only if the ETag of the resource matches the specified
* ETag.
*
* For more information, see Specifying
* Conditional Headers for Blob Service Operations.
*
* @param etag
* A String that represents the ETag value to check.
*
* @return An AccessCondition object that represents the If-Match condition.
*/
public static AccessCondition ifMatch(String etag) {
return new AccessCondition(AccessConditionHeaderType.IF_MATCH, etag);
}
/**
* Returns an access condition such that an operation will be performed only if the resource has been modified since
* the specified time.
*
* Setting this access condition modifies the request to include the HTTP If-Modified-Since conditional
* header. If this access condition is set, the operation is performed only if the resource has been modified since
* the specified time.
*
* For more information, see Specifying
* Conditional Headers for Blob Service Operations.
*
* @param lastMotified
* A java.util.Date object that represents the last-modified time to check for the resource.
*
* @return An AccessCondition object that represents the If-Modified-Since condition.
*/
public static AccessCondition ifModifiedSince(Date lastMotified) {
return new AccessCondition(AccessConditionHeaderType.IF_MODIFIED_SINCE,
new RFC1123DateConverter().format(lastMotified));
}
/**
* Returns an access condition such that an operation will be performed only if the resource's ETag value does not
* match the specified ETag value.
*
* Setting this access condition modifies the request to include the HTTP If-None-Match conditional header.
* If this access condition is set, the operation is performed only if the ETag of the resource does not match the
* specified ETag.
*
* For more information, see Specifying
* Conditional Headers for Blob Service Operations.
*
* @param etag
* A String that represents the ETag value to check.
*
* @return An AccessCondition object that represents the If-None-Match condition.
*/
public static AccessCondition ifNoneMatch(String etag) {
return new AccessCondition(AccessConditionHeaderType.IF_NONE_MATCH, etag);
}
/**
* Returns an access condition such that an operation will be performed only if the resource has not been modified
* since the specified time.
*
* Setting this access condition modifies the request to include the HTTP If-Unmodified-Since conditional
* header. If this access condition is set, the operation is performed only if the resource has not been modified
* since the specified time.
*
* For more information, see Specifying
* Conditional Headers for Blob Service Operations.
*
* @param lastMotified
* A java.util.Date object that represents the last-modified time to check for the resource.
*
* @return An AccessCondition object that represents the If-Unmodified-Since condition.
*/
public static AccessCondition ifNotModifiedSince(Date lastMotified) {
return new AccessCondition(AccessConditionHeaderType.IF_UNMODIFIED_SINCE,
new RFC1123DateConverter().format(lastMotified));
}
/**
* Represents the header type.
*/
private AccessConditionHeaderType header = AccessConditionHeaderType.NONE;
/**
* Represents the header value.
*/
private String value;
/**
* Creates an instance of the AccessCondition class.
*/
protected AccessCondition() {
// Empty Default Ctor
}
/**
* Creates an instance of the AccessCondition class using the specified header type and value.
*
* @param headerType
* An {@link AccessConditionHeaderType} value that represents the header type.
* @param value
* A String that represents the value of the header.
*/
protected AccessCondition(AccessConditionHeaderType headerType, String value) {
this.setHeader(headerType);
this.setValue(value);
}
public AccessConditionHeaderType getHeader() {
return header;
}
public void setHeader(AccessConditionHeaderType header) {
this.header = header;
}
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}