1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/***************************************************************************
* Copyright (c) 2004 - 2011 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
* Caspar De Groot - maintenance
**************************************************************************/
package org.eclipse.emf.cdo.internal.net4j.protocol;
import org.eclipse.emf.cdo.common.branch.CDOBranch;
import org.eclipse.emf.cdo.common.branch.CDOBranchPoint;
import org.eclipse.emf.cdo.common.protocol.CDODataInput;
import org.eclipse.emf.cdo.common.protocol.CDODataOutput;
import org.eclipse.emf.cdo.common.protocol.CDOProtocolConstants;
import org.eclipse.emf.cdo.common.revision.CDORevision;
import org.eclipse.emf.cdo.common.revision.CDORevisionKey;
import org.eclipse.emf.cdo.spi.common.revision.InternalCDORevision;
import org.eclipse.net4j.util.concurrent.IRWLockManager;
import org.eclipse.net4j.util.concurrent.IRWLockManager.LockType;
import org.eclipse.emf.spi.cdo.CDOSessionProtocol.LockObjectsResult;
import java.io.IOException;
import java.util.List;
/**
* @author Eike Stepper, Caspar De Groot
*/
public class LockObjectsRequest extends CDOClientRequest<LockObjectsResult>
{
private int viewID;
private IRWLockManager.LockType lockType;
private long timeout;
private List<InternalCDORevision> viewedRevisions;
/**
* The branch being viewed
*/
private CDOBranch viewedBranch;
public LockObjectsRequest(CDOClientProtocol protocol, List<InternalCDORevision> viewedRevisions, int viewID,
CDOBranch viewedBranch, LockType lockType, long timeout)
{
super(protocol, CDOProtocolConstants.SIGNAL_LOCK_OBJECTS);
this.viewID = viewID;
this.lockType = lockType;
this.timeout = timeout;
this.viewedRevisions = viewedRevisions;
this.viewedBranch = viewedBranch;
}
@Override
protected void requesting(CDODataOutput out) throws IOException
{
out.writeInt(viewID);
out.writeCDOLockType(lockType);
out.writeLong(timeout);
out.writeCDOBranch(viewedBranch);
out.writeInt(viewedRevisions.size());
for (CDORevision revision : viewedRevisions)
{
out.writeCDORevisionKey(revision);
}
}
@Override
protected LockObjectsResult confirming(CDODataInput in) throws IOException
{
boolean succesful = in.readBoolean();
if (succesful)
{
boolean clientMustWait = in.readBoolean();
long requiredTimestamp = CDOBranchPoint.UNSPECIFIED_DATE;
if (clientMustWait)
{
requiredTimestamp = in.readLong();
}
return new LockObjectsResult(true, false, clientMustWait, requiredTimestamp, null);
}
boolean timedOut = in.readBoolean();
if (timedOut)
{
return new LockObjectsResult(false, true, false, 0, null);
}
int nStaleRevisions = in.readInt();
CDORevisionKey[] staleRevisions = new CDORevisionKey[nStaleRevisions];
for (int i = 0; i < nStaleRevisions; i++)
{
staleRevisions[i] = in.readCDORevisionKey();
}
return new LockObjectsResult(false, false, false, 0, staleRevisions);
}
}
|
