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diff --git a/src/main/java/com/att/nsa/cambria/metabroker/Topic.java b/src/main/java/com/att/nsa/cambria/metabroker/Topic.java
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--- a/src/main/java/com/att/nsa/cambria/metabroker/Topic.java
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-/*******************************************************************************
- * ============LICENSE_START=======================================================
- * org.onap.dmaap
- * ================================================================================
- * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
- * ================================================================================
- * 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.
- * ============LICENSE_END=========================================================
- *
- * ECOMP is a trademark and service mark of AT&T Intellectual Property.
- *
- *******************************************************************************/
-package com.att.nsa.cambria.metabroker;
-
-import com.att.nsa.configs.ConfigDbException;
-import com.att.nsa.security.NsaAcl;
-import com.att.nsa.security.NsaApiKey;
-import com.att.nsa.security.ReadWriteSecuredResource;
-/**
- * This is the interface for topic and all the topic related operations
- * get topic name, owner, description, transactionEnabled etc.
- * @author author
- *
- */
-public interface Topic extends ReadWriteSecuredResource
-{
- /**
- * User defined exception for access denied while access the topic for Publisher and consumer
- * @author author
- *
- *//*
- public class AccessDeniedException extends Exception
- {
- *//**
- * AccessDenied Description
- *//*
- public AccessDeniedException () { super ( "Access denied." ); }
- *//**
- * AccessDenied Exception for the user while authenticating the user request
- * @param user
- *//*
- public AccessDeniedException ( String user ) { super ( "Access denied for " + user ); }
- private static final long serialVersionUID = 1L;
- }*/
-
- /**
- * Get this topic's name
- * @return
- */
- String getName ();
-
- /**
- * Get the API key of the owner of this topic.
- * @return
- */
- String getOwner ();
-
- /**
- * Get a description of the topic, as set by the owner at creation time.
- * @return
- */
- String getDescription ();
-
- /**
- * If the topic is transaction enabled
- * @return boolean true/false
- */
- boolean isTransactionEnabled();
-
- /**
- * Get the ACL for reading on this topic. Can be null.
- * @return
- */
- NsaAcl getReaderAcl ();
-
- /**
- * Get the ACL for writing on this topic. Can be null.
- * @return
- */
- NsaAcl getWriterAcl ();
-
- /**
- * Check if this user can read the topic. Throw otherwise. Note that
- * user may be null.
- * @param user
- */
- void checkUserRead ( NsaApiKey user ) throws AccessDeniedException;
-
- /**
- * Check if this user can write to the topic. Throw otherwise. Note
- * that user may be null.
- * @param user
- */
- void checkUserWrite ( NsaApiKey user ) throws AccessDeniedException;
-
- /**
- * allow the given user to publish
- * @param publisherId
- * @param asUser
- */
- void permitWritesFromUser ( String publisherId, NsaApiKey asUser ) throws AccessDeniedException, ConfigDbException;
-
- /**
- * deny the given user from publishing
- * @param publisherId
- * @param asUser
- */
- void denyWritesFromUser ( String publisherId, NsaApiKey asUser ) throws AccessDeniedException, ConfigDbException;
-
- /**
- * allow the given user to read the topic
- * @param consumerId
- * @param asUser
- */
- void permitReadsByUser ( String consumerId, NsaApiKey asUser ) throws AccessDeniedException, ConfigDbException;
-
- /**
- * deny the given user from reading the topic
- * @param consumerId
- * @param asUser
- * @throws ConfigDbException
- */
- void denyReadsByUser ( String consumerId, NsaApiKey asUser ) throws AccessDeniedException, ConfigDbException;
-}