1 files changed, 144 insertions, 0 deletions
diff --git a/music-core/src/main/java/org/onap/music/lockingservice/cassandra/MusicLockState.java b/music-core/src/main/java/org/onap/music/lockingservice/cassandra/MusicLockState.java
new file mode 100644
index 00000000..14fb8135
--- /dev/null
+++ b/music-core/src/main/java/org/onap/music/lockingservice/cassandra/MusicLockState.java
@@ -0,0 +1,144 @@
+/*
+ * ============LICENSE_START==========================================
+ * org.onap.music
+ * ===================================================================
+ *  Copyright (c) 2017 AT&T Intellectual Property
+ * ===================================================================
+ *  Modifications Copyright (c) 2019 Samsung
+ * ===================================================================
+ *  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.cassandra;
+
+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 the locking service, capturing the transitions of
+public class MusicLockState implements Serializable {
+    // captures the state of the lock
+    public enum LockStatus {
+        UNLOCKED, BEING_LOCKED, LOCKED
+    }
+  
+
+    private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicLockState.class);
+    private LockStatus lockStatus;
+    private boolean needToSyncQuorum = false;
+    private String lockHolder;
+    private long leasePeriod = Long.MAX_VALUE;
+    private long 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, e);
+        }
+        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, e);
+        }
+        return (MusicLockState) o;
+    }
+}