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/*
* ============LICENSE_START==========================================
* org.onap.music
* ===================================================================
* Copyright (c) 2017 AT&T Intellectual Property
* ===================================================================
* 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=============================================
* ====================================================================
*/
package org.onap.music.lockingservice;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import org.onap.music.eelf.logging.EELFLoggerDelegate;
import org.onap.music.eelf.logging.format.AppMessages;
import org.onap.music.eelf.logging.format.ErrorSeverity;
import org.onap.music.eelf.logging.format.ErrorTypes;
// the state variable that will be stored in zookeeper, capturing the transitions of
public class MusicLockState implements Serializable {
public enum LockStatus {
UNLOCKED, BEING_LOCKED, LOCKED
};// captures the state of the lock
private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicLockState.class);
LockStatus lockStatus;
boolean needToSyncQuorum = false;
String lockHolder;
long leasePeriod = Long.MAX_VALUE, leaseStartTime = -1;
private String errorMessage = null;
public MusicLockState(String errorMessage) {
this.errorMessage = errorMessage;
}
public MusicLockState(LockStatus lockStatus, String lockHolder) {
this.lockStatus = lockStatus;
this.lockHolder = lockHolder;
}
public MusicLockState(LockStatus lockStatus, String lockHolder, boolean needToSyncQuorum) {
this.lockStatus = lockStatus;
this.lockHolder = lockHolder;
this.needToSyncQuorum = needToSyncQuorum;
}
public long getLeasePeriod() {
return leasePeriod;
}
public boolean isNeedToSyncQuorum() {
return needToSyncQuorum;
}
public void setLeasePeriod(long leasePeriod) {
this.leasePeriod = leasePeriod;
}
public long getLeaseStartTime() {
return leaseStartTime;
}
public void setLeaseStartTime(long leaseStartTime) {
this.leaseStartTime = leaseStartTime;
}
public LockStatus getLockStatus() {
return lockStatus;
}
public void setLockStatus(LockStatus lockStatus) {
this.lockStatus = lockStatus;
}
public String getLockHolder() {
return lockHolder;
}
public void setLockHolder(String lockHolder) {
this.lockHolder = lockHolder;
}
public String getErrorMessage() {
return errorMessage;
}
public byte[] serialize() {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutput out = null;
try {
out = new ObjectOutputStream(bos);
out.writeObject(this);
} catch (IOException e) {
logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.IOERROR, ErrorSeverity.ERROR, ErrorTypes.CONNECTIONERROR);
}
return bos.toByteArray();
}
public static MusicLockState deSerialize(byte[] data) {
ByteArrayInputStream bis = new ByteArrayInputStream(data);
Object o = null;
ObjectInput in = null;
try {
in = new ObjectInputStream(bis);
o = in.readObject();
} catch (ClassNotFoundException | IOException e) {
logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.ERROR, ErrorTypes.UNKNOWN);
}
return (MusicLockState) o;
}
}
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