Package org.waveprotocol.box.server.waveserver

Examples of org.waveprotocol.box.server.waveserver.WaveletDeltaRecord

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    return (delta != null) ? delta.getAppliedAtVersion() : null;
  }

  @Override
  public HashedVersion getResultingVersion(long version) {
    WaveletDeltaRecord delta = getDelta(version);
    return (delta != null) ? delta.getTransformedDelta().getResultingVersion() : null;
  }
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    return (delta != null) ? delta.getTransformedDelta().getResultingVersion() : null;
  }

  @Override
  public ByteStringMessage<ProtocolAppliedWaveletDelta> getAppliedDelta(long version) {
    WaveletDeltaRecord delta = getDelta(version);
    return (delta != null) ? delta.getAppliedDelta() : null;
  }
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    return (delta != null) ? delta.getAppliedDelta() : null;
  }

  @Override
  public TransformedWaveletDelta getTransformedDelta(long version) {
    WaveletDeltaRecord delta = getDelta(version);
    return (delta != null) ? delta.getTransformedDelta() : null;
  }
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  public void append(Collection<WaveletDeltaRecord> deltas) throws PersistenceException {
    checkIsOpen();
    try {
      file.seek(file.length());

      WaveletDeltaRecord lastDelta = null;
      for (WaveletDeltaRecord delta : deltas) {
        index.addDelta(delta.getTransformedDelta().getAppliedAtVersion(),
            delta.getTransformedDelta().size(),
            file.getFilePointer());
        writeDelta(delta);
        lastDelta = delta;
      }

      // fsync() before returning.
      file.getChannel().force(true);
      endVersion = lastDelta.getTransformedDelta().getResultingVersion();
    } catch (IOException e) {
      throw new PersistenceException(e);
    }
  }
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    ByteStringMessage<ProtocolAppliedWaveletDelta> appliedDelta =
        readAppliedDelta(header.appliedDeltaLength);
    TransformedWaveletDelta transformedDelta = readTransformedWaveletDelta(
        header.transformedDeltaLength);

    return new WaveletDeltaRecord(AppliedDeltaUtil.getHashedVersionAppliedAt(appliedDelta),
        appliedDelta, transformedDelta);
  }
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  }

  public static WaveletDeltaRecord deserializeWaveletDeltaRecord(DBObject dbObject)
      throws PersistenceException {
    try {
      return new WaveletDeltaRecord(
          deserializeHashedVersion((DBObject) dbObject.get(FIELD_APPLIEDATVERSION)),
          ByteStringMessage.parseProtocolAppliedWaveletDelta(ByteString.copyFrom((byte[]) dbObject
              .get(FIELD_APPLIED))),
          deserializeTransformedWaveletDelta((DBObject) dbObject.get(FIELD_TRANSFORMED)));
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          HashedVersion deltaResultingVersion = sourceDeltas.getEndVersion();

          // Deltas
          while (deltaResultingVersion != null && deltaResultingVersion.getVersion() != 0) {
            deltasCount++;
            WaveletDeltaRecord deltaRecord =
                sourceDeltas.getDeltaByEndVersion(deltaResultingVersion.getVersion());
            deltas.add(deltaRecord);
            // get the previous delta, this is the appliedAt
            deltaResultingVersion = deltaRecord.getAppliedAtVersion();
          }
          LOG.info("Appending " + deltasCount + "deltas to target");
          targetDeltas.append(deltas);
        }
      } // While Waves
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  public void append(Collection<WaveletDeltaRecord> deltas) throws PersistenceException {
    checkIsOpen();
    try {
      file.seek(file.length());

      WaveletDeltaRecord lastDelta = null;
      for (WaveletDeltaRecord delta : deltas) {
        index.addDelta(delta.transformed.getAppliedAtVersion(), delta.transformed.size(),
            file.getFilePointer());
        writeDelta(delta);
        lastDelta = delta;
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    ByteStringMessage<ProtocolAppliedWaveletDelta> appliedDelta =
        readAppliedDelta(header.appliedDeltaLength);
    TransformedWaveletDelta transformedDelta = readTransformedWaveletDelta(
        header.transformedDeltaLength);

    return new WaveletDeltaRecord(AppliedDeltaUtil.getHashedVersionAppliedAt(appliedDelta),
        appliedDelta, transformedDelta);
  }
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    return endDeltas.get(version);
  }

  @Override
  public HashedVersion getAppliedAtVersion(long version) throws InvalidProtocolBufferException {
    WaveletDeltaRecord delta = getDelta(version);
    return (delta != null) ? delta.getAppliedAtVersion() : null;
  }
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Related Classes of org.waveprotocol.box.server.waveserver.WaveletDeltaRecord

  • org.waveprotocol.box.server.persistence.DeltaStoreTestBase
  • org.waveprotocol.box.server.persistence.file.DeltaStoreTest
  • org.waveprotocol.box.server.persistence.file.FileDeltaCollection
  • org.waveprotocol.box.server.persistence.memory.MemoryDeltaCollection
  • org.waveprotocol.box.server.persistence.migration.DeltaMigrator
  • org.waveprotocol.box.server.persistence.mongodb.MongoDbDeltaCollection
  • org.waveprotocol.box.server.persistence.mongodb.MongoDbDeltaStoreUtil
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