/*
* Copyright 2015-2016 the original author or authors.
*
* 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 org.springframework.integration.leader;
import java.util.UUID;
import org.springframework.util.StringUtils;
/**
* Base implementation of a {@link Candidate}.
*
* @author Janne Valkealahti
*
*/
public abstract class AbstractCandidate implements Candidate {
private static final String DEFAULT_ROLE = "leader";
private final String id;
private final String role;
/**
* Instantiate a abstract candidate.
*/
public AbstractCandidate() {
this(null, null);
}
/**
* Instantiate a abstract candidate.
*
* @param id the identifier
* @param role the role
*/
public AbstractCandidate(String id, String role) {
this.id = StringUtils.hasText(id) ? id : UUID.randomUUID().toString();
this.role = StringUtils.hasText(role) ? role : DEFAULT_ROLE;
}
@Override
public String getRole() {
return this.role;
}
@Override
public String getId() {
return this.id;
}
@Override
public abstract void onGranted(Context ctx) throws InterruptedException;
@Override
public abstract void onRevoked(Context ctx);
}