2 * ============LICENSE_START==========================================
4 * ===================================================================
5 * Copyright (c) 2017 AT&T Intellectual Property
6 * ===================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
19 * ============LICENSE_END=============================================
20 * ====================================================================
23 package org.onap.music.lockingservice.cassandra;
25 import java.io.ByteArrayInputStream;
26 import java.io.ByteArrayOutputStream;
27 import java.io.IOException;
28 import java.io.ObjectInput;
29 import java.io.ObjectInputStream;
30 import java.io.ObjectOutput;
31 import java.io.ObjectOutputStream;
32 import java.io.Serializable;
33 import org.onap.music.eelf.logging.EELFLoggerDelegate;
34 import org.onap.music.eelf.logging.format.AppMessages;
35 import org.onap.music.eelf.logging.format.ErrorSeverity;
36 import org.onap.music.eelf.logging.format.ErrorTypes;
38 // the state variable that will be stored in the locking service, capturing the transitions of
39 public class MusicLockState implements Serializable {
40 public enum LockStatus {
41 UNLOCKED, BEING_LOCKED, LOCKED
42 };// captures the state of the lock
44 private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicLockState.class);
45 LockStatus lockStatus;
46 boolean needToSyncQuorum = false;
48 long leasePeriod = Long.MAX_VALUE, leaseStartTime = -1;
50 private String errorMessage = null;
52 public MusicLockState(String errorMessage) {
53 this.errorMessage = errorMessage;
56 public MusicLockState(LockStatus lockStatus, String lockHolder) {
57 this.lockStatus = lockStatus;
58 this.lockHolder = lockHolder;
61 public MusicLockState(LockStatus lockStatus, String lockHolder, boolean needToSyncQuorum) {
62 this.lockStatus = lockStatus;
63 this.lockHolder = lockHolder;
64 this.needToSyncQuorum = needToSyncQuorum;
68 public long getLeasePeriod() {
72 public boolean isNeedToSyncQuorum() {
73 return needToSyncQuorum;
78 public void setLeasePeriod(long leasePeriod) {
79 this.leasePeriod = leasePeriod;
83 public long getLeaseStartTime() {
84 return leaseStartTime;
88 public void setLeaseStartTime(long leaseStartTime) {
89 this.leaseStartTime = leaseStartTime;
94 public LockStatus getLockStatus() {
98 public void setLockStatus(LockStatus lockStatus) {
99 this.lockStatus = lockStatus;
102 public String getLockHolder() {
106 public void setLockHolder(String lockHolder) {
107 this.lockHolder = lockHolder;
110 public String getErrorMessage() {
114 public byte[] serialize() {
115 ByteArrayOutputStream bos = new ByteArrayOutputStream();
116 ObjectOutput out = null;
118 out = new ObjectOutputStream(bos);
119 out.writeObject(this);
120 } catch (IOException e) {
121 logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.IOERROR, ErrorSeverity.ERROR, ErrorTypes.CONNECTIONERROR);
123 return bos.toByteArray();
126 public static MusicLockState deSerialize(byte[] data) {
127 ByteArrayInputStream bis = new ByteArrayInputStream(data);
129 ObjectInput in = null;
131 in = new ObjectInputStream(bis);
133 } catch (ClassNotFoundException | IOException e) {
134 logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.ERROR, ErrorTypes.UNKNOWN);
136 return (MusicLockState) o;