예제 #1
0
 private Data getInternal(Number640 key) {
   Data data = backend.get(key);
   if (data != null && !data.hasPrepareFlag()) {
     return data;
   } else {
     return null;
   }
 }
예제 #2
0
  public Map<Number640, Enum<?>> putAll(
      final NavigableMap<Number640, Data> dataMap,
      PublicKey publicKey,
      boolean putIfAbsent,
      boolean domainProtection,
      boolean sendSelf) {
    if (dataMap.isEmpty()) {
      return Collections.emptyMap();
    }
    final Number640 min = dataMap.firstKey();
    final Number640 max = dataMap.lastKey();
    final Map<Number640, Enum<?>> retVal = new HashMap<Number640, Enum<?>>();
    final HashSet<Number480> keysToCheck = new HashSet<Number480>();
    final RangeLock<Number640>.Range lock = lock(min, max);
    try {
      for (Map.Entry<Number640, Data> entry : dataMap.entrySet()) {
        Number640 key = entry.getKey();
        keysToCheck.add(key.locationAndDomainAndContentKey());
        Data newData = entry.getValue();
        if (!securityDomainCheck(
            key.locationAndDomainKey(), publicKey, publicKey, domainProtection)) {
          retVal.put(key, PutStatus.FAILED_SECURITY);
          newData.release();
          continue;
        }

        // We need this check in case we did not use the encoder/decoder,
        // which is the case if we send the message to ourself. In that
        // case, the public key of the data is never set to the message
        // publick key, if the publick key of the data was null.
        final PublicKey dataKey;
        if (sendSelf && newData.publicKey() == null) {
          dataKey = publicKey;
        } else {
          dataKey = newData.publicKey();
        }

        if (!securityEntryCheck(
            key.locationAndDomainAndContentKey(), publicKey, dataKey, newData.isProtectedEntry())) {
          retVal.put(key, PutStatus.FAILED_SECURITY);
          newData.release();
          continue;
        }

        final Data oldDataGet = backend.get(key);
        if (oldDataGet != null) {
          if (putIfAbsent) {
            retVal.put(key, PutStatus.FAILED_NOT_ABSENT);
            newData.release();
            continue;
          }

          if (oldDataGet.isDeleted()) {
            retVal.put(key, PutStatus.DELETED);
            newData.release();
            continue;
          }
          if (!oldDataGet.basedOnSet().equals(newData.basedOnSet())) {
            retVal.put(key, PutStatus.VERSION_FORK);
            newData.release();
            continue;
          }
        }

        final Data oldDataPut = backend.put(key, newData);

        long expiration = newData.expirationMillis();
        // handle timeout
        backend.addTimeout(key, expiration);

        if (newData.hasPrepareFlag()) {
          retVal.put(key, PutStatus.OK_PREPARED);
        } else {
          retVal.put(key, PutStatus.OK);
        }
        if (oldDataPut != null && oldDataPut != newData) {
          oldDataPut.release();
        }
      }

      for (Number480 key : keysToCheck) {

        // now check for forks
        Number640 minVersion = new Number640(key, Number160.ZERO);
        Number640 maxVersion = new Number640(key, Number160.MAX_VALUE);
        NavigableMap<Number640, Data> tmp = backend.subMap(minVersion, maxVersion);
        tmp = filterCopyOrig(tmp, -1, true);
        NavigableMap<Number640, Data> heads = getLatestInternalOrig(tmp);

        final boolean forked = heads.size() > 1;
        for (final Map.Entry<Number640, Data> entry : heads.entrySet()) {
          if (forked) {
            if (retVal.containsKey(entry.getKey())) {
              retVal.put(entry.getKey(), PutStatus.VERSION_FORK);
            }
          }
        }

        // now remove old versions
        if (maxVersions > 0) {
          NavigableMap<Number640, Data> versions = backend.subMap(minVersion, maxVersion);

          while (!versions.isEmpty()
              && versions.firstKey().versionKey().timestamp() + maxVersions
                  <= versions.lastKey().versionKey().timestamp()) {
            Map.Entry<Number640, Data> entry = versions.pollFirstEntry();
            Data removed = backend.remove(entry.getKey(), true);
            if (removed != null) {
              removed.release();
            }
            backend.removeTimeout(entry.getKey());
          }
        }
      }
      return retVal;

    } finally {
      lock.unlock();
    }
  }