/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.nifi.cluster.coordination.flow;
import java.util.concurrent.TimeUnit;
import org.apache.nifi.encrypt.StringEncryptor;
import org.apache.nifi.fingerprint.FingerprintFactory;
import org.apache.nifi.util.FormatUtils;
import org.apache.nifi.util.NiFiProperties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.FactoryBean;
public class PopularVoteFlowElectionFactoryBean implements FactoryBean<PopularVoteFlowElection> {
private static final Logger logger = LoggerFactory.getLogger(PopularVoteFlowElectionFactoryBean.class);
private NiFiProperties properties;
@Override
public PopularVoteFlowElection getObject() throws Exception {
final String maxWaitTime = properties.getFlowElectionMaxWaitTime();
long maxWaitMillis;
try {
maxWaitMillis = FormatUtils.getTimeDuration(maxWaitTime, TimeUnit.MILLISECONDS);
} catch (final Exception e) {
logger.warn("Failed to parse value of property '{}' as a valid time period. Value was '{}'. Ignoring this value and using the default value of '{}'",
NiFiProperties.FLOW_ELECTION_MAX_WAIT_TIME, maxWaitTime, NiFiProperties.DEFAULT_FLOW_ELECTION_MAX_WAIT_TIME);
maxWaitMillis = FormatUtils.getTimeDuration(NiFiProperties.DEFAULT_FLOW_ELECTION_MAX_WAIT_TIME, TimeUnit.MILLISECONDS);
}
final Integer maxNodes = properties.getFlowElectionMaxCandidates();
final StringEncryptor encryptor = StringEncryptor.createEncryptor(properties);
final FingerprintFactory fingerprintFactory = new FingerprintFactory(encryptor);
return new PopularVoteFlowElection(maxWaitMillis, TimeUnit.MILLISECONDS, maxNodes, fingerprintFactory);
}
@Override
public Class<?> getObjectType() {
return PopularVoteFlowElection.class;
}
@Override
public boolean isSingleton() {
return true;
}
public void setProperties(final NiFiProperties properties) {
this.properties = properties;
}
}