Skip to main content
summaryrefslogtreecommitdiffstats
blob: 4eb2b90f4107507badca443c8acf883818b9aaa3 (plain) (blame)
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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
/*
 * Copyright (c) 2004 - 2012 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
 */
package org.eclipse.emf.cdo.common.util;

import org.eclipse.emf.cdo.common.CDOCommonRepository;
import org.eclipse.emf.cdo.common.CDOCommonRepository.State;
import org.eclipse.emf.cdo.common.branch.CDOBranchManager;
import org.eclipse.emf.cdo.common.branch.CDOBranchPoint;
import org.eclipse.emf.cdo.common.commit.CDOCommitInfoManager;
import org.eclipse.emf.cdo.common.id.CDOIDProvider;
import org.eclipse.emf.cdo.common.lob.CDOLobStore;
import org.eclipse.emf.cdo.common.model.CDOPackageRegistry;
import org.eclipse.emf.cdo.common.protocol.CDODataInput;
import org.eclipse.emf.cdo.common.protocol.CDODataOutput;
import org.eclipse.emf.cdo.common.revision.CDOListFactory;
import org.eclipse.emf.cdo.common.revision.CDORevision;
import org.eclipse.emf.cdo.common.revision.CDORevisionFactory;
import org.eclipse.emf.cdo.spi.common.protocol.CDODataInputImpl;
import org.eclipse.emf.cdo.spi.common.protocol.CDODataOutputImpl;

import org.eclipse.net4j.util.event.IEvent;
import org.eclipse.net4j.util.event.IListener;
import org.eclipse.net4j.util.event.INotifier;
import org.eclipse.net4j.util.io.ExtendedDataInputStream;
import org.eclipse.net4j.util.io.ExtendedDataOutput;

import org.eclipse.core.runtime.IProgressMonitor;

import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * Various static methods that may help with I/O and time stamps.
 *
 * @author Eike Stepper
 * @since 3.0
 */
public final class CDOCommonUtil
{
  /**
   * @since 4.0
   */
  public static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss'.'SSS");

  /**
   * @since 4.2
   */
  public static final String SYSTEM_USER_ID = "CDO_SYSTEM"; //$NON-NLS-1$

  private CDOCommonUtil()
  {
  }

  /**
   * @since 4.0
   */
  public static CDODataInput createCDODataInput(ExtendedDataInputStream inputStream,
      final CDOPackageRegistry packageRegistry, final CDOBranchManager branchManager,
      final CDOCommitInfoManager commitManager, final CDORevisionFactory revisionFactory,
      final CDOListFactory listFactory, final CDOLobStore lobStore) throws IOException
  {
    return new CDODataInputImpl(inputStream)
    {
      @Override
      protected CDOPackageRegistry getPackageRegistry()
      {
        return packageRegistry;
      }

      @Override
      protected CDOBranchManager getBranchManager()
      {
        return branchManager;
      }

      @Override
      protected CDOCommitInfoManager getCommitInfoManager()
      {
        return commitManager;
      }

      @Override
      protected CDORevisionFactory getRevisionFactory()
      {
        return revisionFactory;
      }

      @Override
      protected CDOListFactory getListFactory()
      {
        return listFactory;
      }

      @Override
      protected CDOLobStore getLobStore()
      {
        return lobStore;
      }
    };
  }

  /**
   * @since 4.0
   */
  public static CDODataOutput createCDODataOutput(ExtendedDataOutput extendedDataOutputStream,
      final CDOPackageRegistry packageRegistry, final CDOIDProvider idProvider)
  {
    return new CDODataOutputImpl(extendedDataOutputStream)
    {
      @Override
      public CDOPackageRegistry getPackageRegistry()
      {
        return packageRegistry;
      }

      @Override
      public CDOIDProvider getIDProvider()
      {
        return idProvider;
      }
    };
  }

  public static boolean isValidTimeStamp(long timeStamp, long startTime, long endTime)
  {
    if (timeStamp == CDOBranchPoint.UNSPECIFIED_DATE)
    {
      return endTime == CDOBranchPoint.UNSPECIFIED_DATE;
    }

    return (endTime == CDOBranchPoint.UNSPECIFIED_DATE || endTime >= timeStamp) && timeStamp >= startTime;
  }

  public static int compareTimeStamps(long t1, long t2)
  {
    if (t1 == CDORevision.UNSPECIFIED_DATE)
    {
      t1 = Long.MAX_VALUE;
    }

    if (t2 == CDORevision.UNSPECIFIED_DATE)
    {
      t2 = Long.MAX_VALUE;
    }

    if (t1 < t2)
    {
      return -1;
    }

    if (t1 > t2)
    {
      return 1;
    }

    return 0;
  }

  public static String formatTimeStamp()
  {
    return formatTimeStamp(System.currentTimeMillis());
  }

  public static String formatTimeStamp(long timeStamp)
  {
    if (timeStamp == CDORevision.UNSPECIFIED_DATE)
    {
      return "*";
    }

    return DATE_FORMAT.format(new Date(timeStamp));
  }

  /**
   * @since 4.0
   */
  public static long parseTimeStamp(String timeStamp) throws ParseException
  {
    if ("*".equals(timeStamp))
    {
      return CDORevision.UNSPECIFIED_DATE;
    }

    return DATE_FORMAT.parse(timeStamp).getTime();
  }

  /**
   * @since 4.2
   */
  public static boolean waitWhileInitial(CDOCommonRepository repository, INotifier notifier, IProgressMonitor monitor)
  {
    double rest = 10000000;
    if (monitor != null)
    {
      monitor.beginTask("Waiting for repository " + repository.getName() + " to become initialized...", (int)rest);
    }

    IListener listener = null;

    try
    {
      while (repository.getState() == State.INITIAL)
      {
        if (monitor.isCanceled())
        {
          return false;
        }

        if (listener == null)
        {
          listener = new IListener()
          {
            public void notifyEvent(IEvent event)
            {
              synchronized (this)
              {
                notifyAll();
              }
            }
          };

          notifier.addListener(listener);
        }

        synchronized (listener)
        {
          listener.wait(10L);
        }

        double work = rest / 1000;
        if (work >= 0)
        {
          monitor.worked((int)work);
          rest -= work;
        }
      }

      return true;
    }
    catch (InterruptedException ex)
    {
      return false;
    }
    finally
    {
      if (listener != null)
      {
        notifier.removeListener(listener);
      }

      if (monitor != null)
      {
        monitor.done();
      }
    }
  }
}

Back to the top