2 * ============LICENSE_START==========================================
4 * ===================================================================
5 * Copyright (c) 2017 AT&T Intellectual Property
6 * ===================================================================
7 * Modifications Copyright (c) 2019 Samsung
8 * ===================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
21 * ============LICENSE_END=============================================
22 * ====================================================================
25 package org.onap.music.lockingservice.cassandra;
27 import java.io.ByteArrayInputStream;
28 import java.io.ByteArrayOutputStream;
29 import java.io.IOException;
30 import java.io.ObjectInput;
31 import java.io.ObjectInputStream;
32 import java.io.ObjectOutput;
33 import java.io.ObjectOutputStream;
34 import java.io.Serializable;
35 import org.onap.music.eelf.logging.EELFLoggerDelegate;
36 import org.onap.music.eelf.logging.format.AppMessages;
37 import org.onap.music.eelf.logging.format.ErrorSeverity;
38 import org.onap.music.eelf.logging.format.ErrorTypes;
40 // the state variable that will be stored in the locking service, capturing the transitions of
41 public class MusicLockState implements Serializable {
42 public enum LockStatus {
43 UNLOCKED, BEING_LOCKED, LOCKED
44 };// captures the state of the lock
46 private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicLockState.class);
47 private LockStatus lockStatus;
48 private boolean needToSyncQuorum = false;
49 private String lockHolder;
50 private long leasePeriod = Long.MAX_VALUE, leaseStartTime = -1;
51 private String errorMessage = null;
53 public MusicLockState(String errorMessage) {
54 this.errorMessage = errorMessage;
57 public MusicLockState(LockStatus lockStatus, String lockHolder) {
58 this.lockStatus = lockStatus;
59 this.lockHolder = lockHolder;
62 public MusicLockState(LockStatus lockStatus, String lockHolder, boolean needToSyncQuorum) {
63 this.lockStatus = lockStatus;
64 this.lockHolder = lockHolder;
65 this.needToSyncQuorum = needToSyncQuorum;
69 public long getLeasePeriod() {
73 public boolean isNeedToSyncQuorum() {
74 return needToSyncQuorum;
79 public void setLeasePeriod(long leasePeriod) {
80 this.leasePeriod = leasePeriod;
84 public long getLeaseStartTime() {
85 return leaseStartTime;
89 public void setLeaseStartTime(long leaseStartTime) {
90 this.leaseStartTime = leaseStartTime;
95 public LockStatus getLockStatus() {
99 public void setLockStatus(LockStatus lockStatus) {
100 this.lockStatus = lockStatus;
103 public String getLockHolder() {
107 public void setLockHolder(String lockHolder) {
108 this.lockHolder = lockHolder;
111 public String getErrorMessage() {
115 public byte[] serialize() {
116 ByteArrayOutputStream bos = new ByteArrayOutputStream();
117 ObjectOutput out = null;
119 out = new ObjectOutputStream(bos);
120 out.writeObject(this);
121 } catch (IOException e) {
122 logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.IOERROR, ErrorSeverity.ERROR,
123 ErrorTypes.CONNECTIONERROR, e);
125 return bos.toByteArray();
128 public static MusicLockState deSerialize(byte[] data) {
129 ByteArrayInputStream bis = new ByteArrayInputStream(data);
131 ObjectInput in = null;
133 in = new ObjectInputStream(bis);
135 } catch (ClassNotFoundException | IOException e) {
136 logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity
137 .ERROR, ErrorTypes.UNKNOWN, e);
139 return (MusicLockState) o;