twitter4j.auth.NullAuthorization Maven / Gradle / Ivy
/*
* Copyright 2007 Yusuke Yamamoto
*
* 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 twitter4j.auth;
import twitter4j.internal.http.HttpRequest;
import java.io.ObjectStreamException;
/**
* An interface represents credentials.
*
* @author Yusuke Yamamoto - yusuke at mac.com
*/
public class NullAuthorization implements Authorization, java.io.Serializable {
private static NullAuthorization SINGLETON = new NullAuthorization();
private static final long serialVersionUID = -8748173338942663960L;
private NullAuthorization() {
}
public static NullAuthorization getInstance() {
return SINGLETON;
}
public String getAuthorizationHeader(HttpRequest req) {
return null;
}
public boolean isEnabled() {
return false;
}
@Override
public boolean equals(Object o) {
return SINGLETON == o;
}
@Override
public String toString() {
return "NullAuthentication{SINGLETON}";
}
private Object readResolve() throws ObjectStreamException {
return SINGLETON;
}
}