Remove core dependency on commonj workmanager

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@720913 13f79535-47bb-0310-9956-ffa450edef68

13 files changed, 96 insertions, 83 deletions

diff --git a/java/sca/modules/core/META-INF/MANIFEST.MF b/java/sca/modules/core/META-INF/MANIFEST.MF
index bb0f164a14..3a87219d28 100644
--- a/java/sca/modules/core/META-INF/MANIFEST.MF
+++ b/java/sca/modules/core/META-INF/MANIFEST.MF
@@ -11,7 +11,7 @@ Export-Package: org.apache.tuscany.sca.core.assembly;uses:="org.apache
  cany.sca.interfacedef,org.apache.tuscany.sca.invocation,org.apache.tu

  scany.sca.work,org.apache.tuscany.sca.contribution.processor";version

  ="1.4",org.apache.tuscany.sca.core.work;uses:="javax.naming,org.osoa.

- sca.annotations,commonj.work,org.apache.tuscany.sca.work";version="1.

+ sca.annotations,org.apache.tuscany.sca.work";version="1.

  4",org.apache.tuscany.sca.core.context;uses:="org.apache.tuscany.sca.

  runtime,org.apache.tuscany.sca.assembly,org.apache.tuscany.sca.contex

  t,javax.security.auth,org.apache.tuscany.sca.monitor,org.apache.tusca

@@ -47,8 +47,7 @@ Bnd-LastModified: 1225397162265
 Bundle-ManifestVersion: 2

 Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.txt

 Bundle-Description: Apache Tuscany SCA Core Runtime

-Import-Package: commonj.work,

- javax.naming,

+Import-Package: javax.naming,

  javax.security.auth,

  javax.xml.namespace,

  javax.xml.stream,

diff --git a/java/sca/modules/core/pom.xml b/java/sca/modules/core/pom.xml
index 49b98dc24a..e42a05ec52 100644
--- a/java/sca/modules/core/pom.xml
+++ b/java/sca/modules/core/pom.xml
@@ -60,12 +60,6 @@
         </dependency>
         
         <dependency>
-            <groupId>org.apache.geronimo.specs</groupId>
-            <artifactId>geronimo-commonj_1.1_spec</artifactId>
-            <version>1.0</version>
-        </dependency>
-
-        <dependency>
             <groupId>org.codehaus.woodstox</groupId>
             <artifactId>wstx-asl</artifactId>
             <version>3.2.4</version>
diff --git a/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/Jsr237WorkScheduler.java b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/DefaultWorkScheduler.java
index ffc34e7328..2085a796ab 100644
--- a/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/Jsr237WorkScheduler.java
+++ b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/DefaultWorkScheduler.java
@@ -21,17 +21,10 @@ package org.apache.tuscany.sca.core.work;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
 
-import javax.naming.InitialContext;
-import javax.naming.NamingException;
-
 import org.apache.tuscany.sca.work.NotificationListener;
 import org.apache.tuscany.sca.work.WorkScheduler;
 import org.apache.tuscany.sca.work.WorkSchedulerException;
 
-import commonj.work.WorkEvent;
-import commonj.work.WorkListener;
-import commonj.work.WorkManager;
-
 /**
  * A work scheduler implementation based on a JSR 237 work manager.
  * <p/>
@@ -43,31 +36,31 @@ import commonj.work.WorkManager;
  *
  * @version $Rev$ $Date$
  */
-public class Jsr237WorkScheduler implements WorkScheduler {
+public class DefaultWorkScheduler implements WorkScheduler {
 
     /**
      * Underlying JSR-237 work manager
      */
-    private WorkManager jsr237WorkManager;
+    private ThreadPoolWorkManager jsr237WorkManager;
 
     /**
      * Initializes the JSR 237 work manager.
      *
      * @param jsr237WorkManager JSR 237 work manager.
      */
-    public Jsr237WorkScheduler() {
+    public DefaultWorkScheduler() {
     }
 
-    private synchronized WorkManager getWorkManager() {
+    private synchronized ThreadPoolWorkManager getWorkManager() {
         if (jsr237WorkManager != null) {
             return jsr237WorkManager;
         }
-        try {
-            InitialContext ctx = new InitialContext();
-            jsr237WorkManager = (WorkManager)ctx.lookup("java:comp/env/wm/TuscanyWorkManager");
-        } catch (Throwable e) {
-            // ignore
-        }
+//        try {
+//            InitialContext ctx = new InitialContext();
+//            jsr237WorkManager = (ThreadPoolWorkManager)ctx.lookup("java:comp/env/wm/TuscanyWorkManager");
+//        } catch (Throwable e) {
+//            // ignore
+//        }
         if (jsr237WorkManager == null) {
             jsr237WorkManager = new ThreadPoolWorkManager(10);
         }
@@ -97,7 +90,7 @@ public class Jsr237WorkScheduler implements WorkScheduler {
             throw new IllegalArgumentException("Work cannot be null");
         }
 
-        Jsr237Work<T> jsr237Work = new Jsr237Work<T>(work);
+        Work<T> jsr237Work = new Work<T>(work);
         try {
             if (listener == null) {
                 getWorkManager().schedule(jsr237Work);
diff --git a/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/ThreadPoolWorkManager.java b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/ThreadPoolWorkManager.java
index fb47a65edf..dad5968f65 100644
--- a/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/ThreadPoolWorkManager.java
+++ b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/ThreadPoolWorkManager.java
@@ -27,15 +27,9 @@ import java.util.concurrent.Executors;
 import java.util.concurrent.RejectedExecutionException;
 import java.util.concurrent.ThreadFactory;
 
+import org.apache.tuscany.sca.work.WorkSchedulerException;
 import org.osoa.sca.annotations.Destroy;
 
-import commonj.work.Work;
-import commonj.work.WorkEvent;
-import commonj.work.WorkException;
-import commonj.work.WorkItem;
-import commonj.work.WorkListener;
-import commonj.work.WorkManager;
-
 /**
  * A thread-pool based implementation for the JSR-237 work manager.
  * <p/>
@@ -46,10 +40,10 @@ import commonj.work.WorkManager;
  *
  * @version $Rev$ $Date$
  */
-public class ThreadPoolWorkManager implements WorkManager {
+public class ThreadPoolWorkManager {
 
     // Map of work items currently handled by the work manager
-    private Map<WorkItemImpl, WorkListener> workItems = new ConcurrentHashMap<WorkItemImpl, WorkListener>();
+    private Map<WorkItem, WorkListener> workItems = new ConcurrentHashMap<WorkItem, WorkListener>();
 
     // Thread-pool
     private ExecutorService executor;
@@ -96,7 +90,7 @@ public class ThreadPoolWorkManager implements WorkManager {
      */
     public WorkItem schedule(Work work, WorkListener workListener) throws IllegalArgumentException {
 
-        WorkItemImpl workItem = new WorkItemImpl(new UID().toString(), work);
+        WorkItem workItem = new WorkItem(new UID().toString(), work);
         if (workListener != null) {
             workItems.put(workItem, workListener);
         }
@@ -106,7 +100,7 @@ public class ThreadPoolWorkManager implements WorkManager {
         } else {
             workItem.setStatus(WorkEvent.WORK_REJECTED);
             if (workListener != null) {
-                workListener.workRejected(new WorkEventImpl(workItem));
+                workListener.workRejected(new WorkEvent(workItem));
             }
             throw new IllegalArgumentException("Unable to schedule work");
         }
@@ -138,11 +132,11 @@ public class ThreadPoolWorkManager implements WorkManager {
      * @param workItem Work item representing the work that was accepted.
      * @param work     Work that was accepted.
      */
-    private void workAccepted(final WorkItemImpl workItem, final Work work) {
+    private void workAccepted(final WorkItem workItem, final Work work) {
         WorkListener listener = workItems.get(workItem);
         if (listener != null) {
             workItem.setStatus(WorkEvent.WORK_ACCEPTED);
-            WorkEvent event = new WorkEventImpl(workItem);
+            WorkEvent event = new WorkEvent(workItem);
             listener.workAccepted(event);
         }
     }
@@ -150,11 +144,11 @@ public class ThreadPoolWorkManager implements WorkManager {
     /*
      * Method to indicate a work start.
      */
-    private void workStarted(final WorkItemImpl workItem, final Work work) {
+    private void workStarted(final WorkItem workItem, final Work work) {
         WorkListener listener = workItems.get(workItem);
         if (listener != null) {
             workItem.setStatus(WorkEvent.WORK_STARTED);
-            WorkEvent event = new WorkEventImpl(workItem);
+            WorkEvent event = new WorkEvent(workItem);
             listener.workStarted(event);
         }
     }
@@ -162,20 +156,20 @@ public class ThreadPoolWorkManager implements WorkManager {
     /*
      * Method to indicate a work completion.
      */
-    private void workCompleted(final WorkItemImpl workItem, final Work work) {
+    private void workCompleted(final WorkItem workItem, final Work work) {
         workCompleted(workItem, work, null);
     }
 
     /*
      * Method to indicate a work completion.
      */
-    private void workCompleted(final WorkItemImpl workItem, final Work work, final WorkException exception) {
+    private void workCompleted(final WorkItem workItem, final Work work, final WorkSchedulerException exception) {
         WorkListener listener = workItems.get(workItem);
         if (listener != null) {
             workItem.setStatus(WorkEvent.WORK_COMPLETED);
             workItem.setResult(work);
             workItem.setException(exception);
-            WorkEvent event = new WorkEventImpl(workItem);
+            WorkEvent event = new WorkEvent(workItem);
             listener.workCompleted(event);
             workItems.remove(workItem);
         }
@@ -184,7 +178,7 @@ public class ThreadPoolWorkManager implements WorkManager {
     /*
      * Schedules the work using the ThreadPool.
      */
-    private boolean scheduleWork(final Work work, final WorkItemImpl workItem) {
+    private boolean scheduleWork(final Work work, final WorkItem workItem) {
         try {
             executor.execute(new DecoratingWork(workItem, work));
             return true;
@@ -199,7 +193,7 @@ public class ThreadPoolWorkManager implements WorkManager {
     private final class DecoratingWork implements Runnable {
 
         // Work item for this work.
-        private WorkItemImpl workItem;
+        private WorkItem workItem;
 
         // The original work.
         private Work decoratedWork;
@@ -207,7 +201,7 @@ public class ThreadPoolWorkManager implements WorkManager {
         /*
          * Initializes the work item and underlying work.
          */
-        private DecoratingWork(final WorkItemImpl workItem, final Work decoratedWork) {
+        private DecoratingWork(final WorkItem workItem, final Work decoratedWork) {
             this.workItem = workItem;
             this.decoratedWork = decoratedWork;
         }
@@ -221,7 +215,7 @@ public class ThreadPoolWorkManager implements WorkManager {
                 decoratedWork.run();
                 workCompleted(workItem, decoratedWork);
             } catch (Throwable th) {
-                workCompleted(workItem, decoratedWork, new WorkException(th.getMessage(), th));
+                workCompleted(workItem, decoratedWork, new WorkSchedulerException(th.getMessage(), th));
             }
         }
 
diff --git a/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/Jsr237Work.java b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/Work.java
index adeb667277..c521c60f79 100644
--- a/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/Jsr237Work.java
+++ b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/Work.java
@@ -24,7 +24,7 @@ package org.apache.tuscany.sca.core.work;
  *
  * @version $Rev$ $Date$
  */
-public class Jsr237Work<T extends Runnable> implements commonj.work.Work {
+public class Work<T extends Runnable> {
 
     // Work that is being executed.
     private T work;
@@ -32,7 +32,7 @@ public class Jsr237Work<T extends Runnable> implements commonj.work.Work {
     /*
      * Initializes the work instance.
      */
-    public Jsr237Work(T work) {
+    public Work(T work) {
         this.work = work;
     }
 
diff --git a/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/WorkEventImpl.java b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/WorkEvent.java
index 67d2b66f84..8e9a3b4c53 100644
--- a/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/WorkEventImpl.java
+++ b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/WorkEvent.java
@@ -18,30 +18,34 @@
  */
 package org.apache.tuscany.sca.core.work;
 
+import org.apache.tuscany.sca.work.WorkSchedulerException;
+
 
-import commonj.work.WorkEvent;
-import commonj.work.WorkException;
-import commonj.work.WorkItem;
 
 /**
  * Default immutable implementation of the <code>WorkEvent</code> class.
  *
  * @version $Rev$ $Date$
  */
-class WorkEventImpl implements WorkEvent {
+class WorkEvent {
     
+    public static final int WORK_ACCEPTED = 1;
+    public static final int WORK_REJECTED = 2;
+    public static final int WORK_STARTED = 3;
+    public static final int WORK_COMPLETED = 4;
+
     // Work item for this event
     private WorkItem workItem;
 
     // Exception if something has gone wrong
-    private WorkException exception;
+    private WorkSchedulerException exception;
 
     /**
      * Instantiates the event.
      *
      * @param workItem Work item for this event.
      */
-    public WorkEventImpl(final WorkItemImpl workItem) {
+    public WorkEvent(final WorkItem workItem) {
         this.workItem = workItem;
         this.exception = workItem.getException();
     }
@@ -70,7 +74,7 @@ class WorkEventImpl implements WorkEvent {
      *
      * @return Work exception.
      */
-    public WorkException getException() {
+    public WorkSchedulerException getException() {
         return exception;
     }
 }
diff --git a/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/WorkItemImpl.java b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/WorkItem.java
index 170319b6e6..8320c7364f 100644
--- a/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/WorkItemImpl.java
+++ b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/WorkItem.java
@@ -18,9 +18,7 @@
  */
 package org.apache.tuscany.sca.core.work;
 
-import commonj.work.Work;
-import commonj.work.WorkException;
-import commonj.work.WorkItem;
+import org.apache.tuscany.sca.work.WorkSchedulerException;
 
 /**
  * An identity based immutable implementation of the <code>WorkItem</code>
@@ -28,7 +26,7 @@ import commonj.work.WorkItem;
  *
  * @version $Rev$ $Date$
  */
-class WorkItemImpl implements WorkItem {
+class WorkItem {
     
     // Id scoped for the VM
     private String id;
@@ -43,14 +41,14 @@ class WorkItemImpl implements WorkItem {
     private Work originalWork;
 
     // Exception
-    private WorkException exception;
+    private WorkSchedulerException exception;
 
     /**
      * Instantiates an id for this item.
      *
      * @param id of this work event.
      */
-    protected WorkItemImpl(final String id, final Work orginalWork) {
+    protected WorkItem(final String id, final Work orginalWork) {
         this.id = id;
         this.originalWork = orginalWork;
     }
@@ -97,7 +95,7 @@ class WorkItemImpl implements WorkItem {
      *
      * @return Work exception.
      */
-    protected WorkException getException() {
+    protected WorkSchedulerException getException() {
         return exception;
     }
 
@@ -106,7 +104,7 @@ class WorkItemImpl implements WorkItem {
      *
      * @param exception Exception.
      */
-    protected void setException(final WorkException exception) {
+    protected void setException(final WorkSchedulerException exception) {
         this.exception = exception;
     }
 
@@ -146,7 +144,7 @@ class WorkItemImpl implements WorkItem {
      */
     @Override
     public boolean equals(final Object obj) {
-        return (obj != null) && (obj.getClass() == WorkItemImpl.class) && ((WorkItemImpl) obj).id.equals(id);
+        return (obj != null) && (obj.getClass() == WorkItem.class) && ((WorkItem) obj).id.equals(id);
     }
 
     /**
@@ -160,10 +158,10 @@ class WorkItemImpl implements WorkItem {
      * @throws ClassCastException needs better documentation.
      */
     public int compareTo(final Object o) {
-        if (o.getClass() != WorkItemImpl.class) {
+        if (o.getClass() != WorkItem.class) {
             throw new ClassCastException(o.getClass().getName());
         } else {
-            return ((WorkItemImpl) o).getId().compareTo(getId());
+            return ((WorkItem) o).getId().compareTo(getId());
         }
     }
 }
diff --git a/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/WorkListener.java b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/WorkListener.java
new file mode 100644
index 0000000000..19bfaaa560
--- /dev/null
+++ b/java/sca/modules/core/src/main/java/org/apache/tuscany/sca/core/work/WorkListener.java
@@ -0,0 +1,32 @@
+/*

+ * 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.tuscany.sca.core.work;

+

+public interface WorkListener {

+

+    static long IMMEDIATE = 0;

+    static long INDEFINITE = java.lang.Long.MAX_VALUE;

+

+    void workAccepted(WorkEvent event);

+    void workCompleted(WorkEvent event);

+    void workRejected(WorkEvent event);

+    void workStarted(WorkEvent event);

+

+}

diff --git a/java/sca/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.work.WorkScheduler b/java/sca/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.work.WorkScheduler
index 56e99be0f2..93d93491a8 100644
--- a/java/sca/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.work.WorkScheduler
+++ b/java/sca/modules/core/src/main/resources/META-INF/services/org.apache.tuscany.sca.work.WorkScheduler
@@ -15,4 +15,4 @@
 # specific language governing permissions and limitations

 # under the License.

 

-org.apache.tuscany.sca.core.work.Jsr237WorkScheduler

+org.apache.tuscany.sca.core.work.DefaultWorkScheduler

diff --git a/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/FailingWork.java b/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/FailingWork.java
index 3184c3de92..c69a1908e8 100644
--- a/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/FailingWork.java
+++ b/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/FailingWork.java
@@ -18,14 +18,17 @@
  */
 package org.apache.tuscany.sca.core.work;
 
-import commonj.work.Work;
 
 /**
  * Simple Work item that will throw an exception
  * 
  * @version $Rev$ $Date$
  */
-public class FailingWork implements Work {
+public class FailingWork extends Work {
+
+    public FailingWork() {
+        super(null);
+    }
 
     /**
      * {@inheritDoc}
diff --git a/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/Jsr237WorkSchedulerTestCase.java b/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/Jsr237WorkSchedulerTestCase.java
index 225f23cb93..185394d7e8 100644
--- a/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/Jsr237WorkSchedulerTestCase.java
+++ b/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/Jsr237WorkSchedulerTestCase.java
@@ -38,14 +38,14 @@ public class Jsr237WorkSchedulerTestCase {
     /**
      * This is the shared instance of the ThreadPoolWorkManager used by the tests
      */
-    private static Jsr237WorkScheduler workSchedular = null;
+    private static DefaultWorkScheduler workSchedular = null;
 
     /**
      * Setup the Jsr237WorkScheduler
      */
     @BeforeClass
     public static void setup() {
-        workSchedular = new Jsr237WorkScheduler();
+        workSchedular = new DefaultWorkScheduler();
     }
 
     /**
diff --git a/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/TestWorkListener.java b/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/TestWorkListener.java
index ba32a92c18..58a1b87c48 100644
--- a/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/TestWorkListener.java
+++ b/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/TestWorkListener.java
@@ -23,12 +23,9 @@ import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicInteger;
 
+import org.apache.tuscany.sca.work.WorkSchedulerException;
 import org.junit.Assert;
 
-import commonj.work.WorkEvent;
-import commonj.work.WorkException;
-import commonj.work.WorkListener;
-
 /**
  * A simple WorkListener that tracks invocations to it.
  * 
@@ -59,7 +56,7 @@ public class TestWorkListener implements WorkListener {
     /**
      * List of all exceptions thrown by Work items
      */
-    private List<WorkException> workExceptions = Collections.synchronizedList(new ArrayList<WorkException>());
+    private List<WorkSchedulerException> workExceptions = Collections.synchronizedList(new ArrayList<WorkSchedulerException>());
 
     /**
      * {@inheritDoc}
@@ -150,7 +147,7 @@ public class TestWorkListener implements WorkListener {
      * 
      * @return A List of all exceptions that are thrown by the Work items
      */
-    public List<WorkException> getWorkExceptions() {
+    public List<WorkSchedulerException> getWorkExceptions() {
         return Collections.unmodifiableList(workExceptions);
     }
 }
diff --git a/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/TimeDelayWork.java b/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/TimeDelayWork.java
index 3b30d86f14..6c10057046 100644
--- a/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/TimeDelayWork.java
+++ b/java/sca/modules/core/src/test/java/org/apache/tuscany/sca/core/work/TimeDelayWork.java
@@ -20,15 +20,13 @@ package org.apache.tuscany.sca.core.work;
 
 import java.util.concurrent.atomic.AtomicInteger;
 
-import commonj.work.Work;
-
 /**
  * Simple Work item that will sleep in the run() method for the specified 
  * period of time
  * 
  * @version $Rev$ $Date$
  */
-public class TimeDelayWork implements Work {
+public class TimeDelayWork extends Work {
 
     /**
      * Count of completed run() method calls
@@ -46,6 +44,7 @@ public class TimeDelayWork implements Work {
      * @param sleepTime The amount of time to sleep (in milliseconds) in the run() method
      */
     public TimeDelayWork(long sleepTime) {
+        super(null);
         this.sleepTime = sleepTime;
     }