示例#1
0
  public void onSuccess(FetchResult result, ClientGetter state, ObjectContainer container) {
    Logger.minor(this, "Succeeded: " + identifier);
    Bucket data = result.asBucket();
    if (persistenceType == PERSIST_FOREVER) {
      if (data != null) container.activate(data, 5);
      if (returnBucket != null) container.activate(returnBucket, 5);
      container.activate(client, 1);
      if (tempFile != null) container.activate(tempFile, 5);
      if (targetFile != null) container.activate(targetFile, 5);
    }
    if (returnBucket != data && !binaryBlob) {
      boolean failed = true;
      synchronized (this) {
        if (finished) {
          Logger.error(
              this,
              "Already finished but onSuccess() for " + this + " data = " + data,
              new Exception("debug"));
          data.free();
          if (persistenceType == PERSIST_FOREVER) data.removeFrom(container);
          return; // Already failed - bucket error maybe??
        }
        if (returnType == ClientGetMessage.RETURN_TYPE_DIRECT && returnBucket == null) {
          // Lost bucket for some reason e.g. bucket error (caused by IOException) on previous try??
          // Recover...
          returnBucket = data;
          failed = false;
        }
      }
      if (failed && persistenceType == PERSIST_FOREVER) {
        if (container.ext().getID(returnBucket) == container.ext().getID(data)) {
          Logger.error(
              this,
              "DB4O BUG DETECTED WITHOUT ARRAY HANDLING! EVIL HORRIBLE BUG! UID(returnBucket)="
                  + container.ext().getID(returnBucket)
                  + " for "
                  + returnBucket
                  + " active="
                  + container.ext().isActive(returnBucket)
                  + " stored = "
                  + container.ext().isStored(returnBucket)
                  + " but UID(data)="
                  + container.ext().getID(data)
                  + " for "
                  + data
                  + " active = "
                  + container.ext().isActive(data)
                  + " stored = "
                  + container.ext().isStored(data));
          // Succeed anyway, hope that the returned bucket is consistent...
          returnBucket = data;
          failed = false;
        }
      }
      if (failed) {
        Logger.error(
            this,
            "returnBucket = " + returnBucket + " but onSuccess() data = " + data,
            new Exception("debug"));
        // Caller guarantees that data == returnBucket
        onFailure(
            new FetchException(FetchException.INTERNAL_ERROR, "Data != returnBucket"),
            null,
            container);
        return;
      }
    }
    boolean dontFree = false;
    // FIXME I don't think this is a problem in this case...? (Disk write while locked..)
    AllDataMessage adm = null;
    synchronized (this) {
      if (succeeded) {
        Logger.error(this, "onSuccess called twice for " + this + " (" + identifier + ')');
        return; // We might be called twice; ignore it if so.
      }
      started = true;
      if (!binaryBlob) this.foundDataMimeType = result.getMimeType();
      else this.foundDataMimeType = BinaryBlob.MIME_TYPE;

      if (returnType == ClientGetMessage.RETURN_TYPE_DIRECT) {
        // Send all the data at once
        // FIXME there should be other options
        // FIXME: CompletionTime is set on finish() : we need to give it current time here
        // but it means we won't always return the same value to clients... Does it matter ?
        adm =
            new AllDataMessage(
                returnBucket,
                identifier,
                global,
                startupTime,
                System.currentTimeMillis(),
                this.foundDataMimeType);
        if (persistenceType == PERSIST_CONNECTION) adm.setFreeOnSent();
        dontFree = true;
        /*
         * } else if(returnType == ClientGetMessage.RETURN_TYPE_NONE) {
        // Do nothing
         */
      } else if (returnType == ClientGetMessage.RETURN_TYPE_DISK) {
        // Write to temp file, then rename over filename
        if (!FileUtil.renameTo(tempFile, targetFile)) {
          postFetchProtocolErrorMessage =
              new ProtocolErrorMessage(
                  ProtocolErrorMessage.COULD_NOT_RENAME_FILE, false, null, identifier, global);
          // Don't delete temp file, user might want it.
        }
        returnBucket = new FileBucket(targetFile, false, true, false, false, false);
      }
      if (persistenceType == PERSIST_FOREVER && progressPending != null) {
        container.activate(progressPending, 1);
        progressPending.removeFrom(container);
      }
      progressPending = null;
      this.foundDataLength = returnBucket.size();
      this.succeeded = true;
      finished = true;
    }
    trySendDataFoundOrGetFailed(null, container);

    if (adm != null) trySendAllDataMessage(adm, null, container);
    if (!dontFree) {
      data.free();
    }
    if (persistenceType == PERSIST_FOREVER) {
      returnBucket.storeTo(container);
      container.store(this);
    }
    finish(container);
    if (client != null) client.notifySuccess(this, container);
  }
示例#2
0
 @Override
 public void storeTo(ObjectContainer container) {
   underlying.storeTo(container);
   container.store(this);
 }
 public void storeTo(ObjectContainer container) {
   bucket.storeTo(container);
   container.store(this);
 }