2 * Copyright (C) 2015 EDIT
3 * European Distributed Institute of Taxonomy
4 * http://www.e-taxonomy.eu
6 * The contents of this file are subject to the Mozilla Public License Version 1.1
7 * See LICENSE.TXT at the top of this package for the full license terms.
9 package eu
.etaxonomy
.taxeditor
.util
;
11 import java
.text
.DecimalFormat
;
12 import java
.util
.Arrays
;
13 import java
.util
.List
;
14 import java
.util
.UUID
;
16 import org
.apache
.log4j
.Logger
;
17 import org
.eclipse
.core
.runtime
.IProgressMonitor
;
19 import eu
.etaxonomy
.cdm
.api
.application
.CdmApplicationState
;
20 import eu
.etaxonomy
.cdm
.api
.service
.IProgressMonitorService
;
21 import eu
.etaxonomy
.cdm
.api
.service
.UpdateResult
;
22 import eu
.etaxonomy
.cdm
.common
.monitor
.IRemotingProgressMonitor
;
23 import eu
.etaxonomy
.taxeditor
.operation
.IFeedbackGenerator
;
24 import eu
.etaxonomy
.taxeditor
.operation
.IPostMoniteredOperationEnabled
;
27 * Manages client side progress monitors
34 public class ProgressMonitorClientManager
{
35 private static final Logger logger
= Logger
.getLogger(ProgressMonitorClientManager
.class);
38 * Polls the progress monitor service for the progress status of a monitor
39 * corresponding to the given uuid.
41 * @param label for the operation
42 * @param uuid of the remoting monitor already started on the server
43 * @param pollInterval in milliseconds
44 * @param cancelable flag which determines whether the operation can be cancelled
45 * @param postOp callback for running post operation logic
46 * @param feedbackGenerator feedback generator corresponding to the
47 * 'wait on feedback' request made on the remoting monitor
48 * @param monitor to be updated
49 * @return a final progress monitor after the operation is completed
50 * @throws InterruptedException
52 public IRemotingProgressMonitor
pollMonitor(final String label
,
54 final int pollInterval
,
55 final IPostMoniteredOperationEnabled postOp
,
56 IFeedbackGenerator feedbackGenerator
,
57 IProgressMonitor monitor
) throws InterruptedException
{
58 return pollMonitor(label
, uuid
, pollInterval
, postOp
, Arrays
.asList(feedbackGenerator
), monitor
);
61 * Polls the progress monitor service for the progress status of a monitor
62 * corresponding to the given uuid.
65 * @param label for the operation
66 * @param uuid of the remoting monitor already started on the server
67 * @param pollInterval in milliseconds
68 * @param cancelable flag which determines whether the operation can be cancelled
69 * @param postOp callback for running post operation logic
70 * @param feedbackGenerators list of feedback generators corresponding to the
71 * size and exact order of the 'wait on feedback' requests made on the
73 * @param monitor to be updated
74 * @return a final progress monitor after the operation is completed
75 * @throws InterruptedException
77 public IRemotingProgressMonitor
pollMonitor(final String label
,
79 final int pollInterval
,
80 final IPostMoniteredOperationEnabled postOp
,
81 List
<IFeedbackGenerator
> feedbackGenerators
,
82 IProgressMonitor monitor
) throws InterruptedException
{
83 IProgressMonitorService progressMonitorService
= CdmApplicationState
.getCurrentAppConfig().getProgressMonitorService();
84 IRemotingProgressMonitor remotingMonitor
= progressMonitorService
.getRemotingMonitor(uuid
);
86 final int START_DELAY
=10;
87 // wait about 10 seconds for the remoting monitor to be initialised
88 // (i.e. for the begin task method to be called ON THE REMOTING MONITOR)
89 for(int i
=0;i
<START_DELAY
;i
++) {
91 logger
.info("Waiting for monitered work to start ..");
92 remotingMonitor
= progressMonitorService
.getRemotingMonitor(uuid
);
93 if(remotingMonitor
.getTotalWork() > 0) {
97 // if the total work is still not been set then we assume that the
98 // operation has zero work units
99 if(remotingMonitor
.getTotalWork() == 0 && remotingMonitor
.isDone()) {
100 return remotingMonitor
;
101 // throw new InterruptedException("Monitor has zero work units");
102 }else if (remotingMonitor
.getTotalWork() == 0 ){
103 throw new InterruptedException("Monitor has zero work units");
105 // start the client monitor
106 monitor
.beginTask(label
, remotingMonitor
.getTotalWork());
107 logger
.info("Work to be done: " + remotingMonitor
.getTotalWork());
108 int editorTotalWorkDone
= 0;
109 int serverTotalWorkDone
= 0;
110 // loop until the operation is done
111 int feedbackCount
= 0;
112 while(!(remotingMonitor
.isCanceled() || remotingMonitor
.isFailed() || remotingMonitor
.isDone())) {
113 // wait for pollInterval, then
114 // .... retrieve remoting monitor, then
115 // .... set client monitor info
116 Thread
.sleep(pollInterval
);
117 remotingMonitor
= progressMonitorService
.getRemotingMonitor(uuid
);
118 // check if remoting monitor is waiting for feedback
119 if(remotingMonitor
.getIsWaitingForFeedback()) {
120 if(feedbackGenerators
!= null) {
121 // if we have run out of feedback generators while
122 // the remoting monitor is waiting on feedback
123 // then throw exception
124 if(feedbackCount
+ 1 > feedbackGenerators
.size()) {
125 IllegalStateException exception
= new IllegalStateException("Remoting monitor waiting on feedback that does not exist");
126 Object result
= remotingMonitor
.getResult();
127 if (result
instanceof UpdateResult
){
128 ((UpdateResult
)result
).addException(exception
);
132 feedbackGenerators
.get(feedbackCount
).setFeedbackForMonitor(uuid
);
136 serverTotalWorkDone
= (int) remotingMonitor
.getWorkDone();
137 logger
.info("Work done from start: " + serverTotalWorkDone
);
138 String percentage
= new DecimalFormat("#.##").format(remotingMonitor
.getPercentage());
140 monitor
.setTaskName(label
+ " " + percentage
+ "% done ");
141 monitor
.subTask(remotingMonitor
.getSubTask());
142 int worked
= serverTotalWorkDone
- editorTotalWorkDone
;
144 logger
.info("Work done since last check: " + worked
);
145 monitor
.worked(worked
);
147 editorTotalWorkDone
= serverTotalWorkDone
;
149 if(remotingMonitor
.getResult() instanceof Exception
) {
150 UpdateResult result
= new UpdateResult();
151 result
.addException((Exception
) remotingMonitor
.getResult());
152 // throw new IllegalStateException((Exception)remotingMonitor.getResult());
154 return remotingMonitor
;
156 if(postOp
!= null && remotingMonitor
.isDone()) {
157 postOp
.postOperation(remotingMonitor
);