Examples of freenet.support.api.RandomAccessBucket

freenet.support.api.RandomAccessBucket
A Bucket which can be converted to a LockableRandomAccessBuffer without copying. Mostly we need this where the size of something we will later use as a RandomAccessBuffer is uncertain. It provides a separate object because the API's are incompatible; in particular, the size of a RandomAccessBuffer is fixed (and this is mostly a good thing). FINALIZERS: Persistent RandomAccessBucket's should never free on finalize. Transient RABs can free on finalize, but must ensure that this only happens if both the Bucket and the RAB are no longer reachable.

            if (type == null) {
                type = "text/plain";
            }
            ClientMetadata contentType = new ClientMetadata(type);


            RandomAccessBucket bucket = request.getPart("filename");


            PageNode page = ctx.getPageMaker().getPageNode(l10n("insertedTitle"), ctx);
            HTMLNode pageNode = page.outer;
            HTMLNode contentNode = page.content;
            HTMLNode content;
            String filenameHint = null;
            if (key.getKeyType().equals("CHK")) {
                String[] metas = key.getAllMetaStrings();
                if ((metas != null) && (metas.length > 1)) {
                    filenameHint = metas[0];
                }
            }
            InsertBlock block = new InsertBlock(bucket, contentType, key);
            try {
                key = this.insert(block, filenameHint, false);
                content = ctx.getPageMaker().getInfobox("infobox-success", l10n("insertSucceededTitle"), contentNode, "successful-insert", false);
                String u = key.toString();
                NodeL10n.getBase().addL10nSubstitution(content, "WelcomeToadlet.keyInsertedSuccessfullyWithKeyAndName",
                        new String[]{"link", "name"},
                        new HTMLNode[] { HTMLNode.link("/"+u), HTMLNode.text(u) });
            } catch (InsertException e) {
              content = ctx.getPageMaker().getInfobox("infobox-error", l10n("insertFailedTitle"), contentNode, "failed-insert", false);
                content.addChild("#", l10n("insertFailedWithMessage", "message", e.getMessage()));
                content.addChild("br");
                if (e.uri != null) {
                    content.addChild("#", l10n("uriWouldHaveBeen", "uri", e.uri.toString()));
                }
                InsertExceptionMode mode = e.getMode();
                if ((mode == InsertExceptionMode.FATAL_ERRORS_IN_BLOCKS) || (mode == InsertExceptionMode.TOO_MANY_RETRIES_IN_BLOCKS)) {
                    content.addChild("br"); /* TODO */
                    content.addChild("#", l10n("splitfileErrorLabel"));
                    content.addChild("pre", e.errorCodes.toVerboseString());
                }
            }


            content.addChild("br");
            addHomepageLink(content);


            writeHTMLReply(ctx, 200, "OK", pageNode.generate());
            request.freeParts();
            bucket.free();
        } else if (request.isPartSet("exit")) {
          PageNode page = ctx.getPageMaker().getPageNode(l10n("shutdownConfirmTitle"), ctx);
            HTMLNode pageNode = page.outer;
            HTMLNode contentNode = page.content;
            HTMLNode content = ctx.getPageMaker().getInfobox("infobox-query", l10n("shutdownConfirmTitle"), contentNode, "shutdown-confirm", true);

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  public static RandomAccessBucket makeImmutableBucket(BucketFactory bucketFactory, byte[] data, int length) throws IOException {
    return makeImmutableBucket(bucketFactory, data, 0, length);
  }
  
  public static RandomAccessBucket makeImmutableBucket(BucketFactory bucketFactory, byte[] data, int offset, int length) throws IOException {
    RandomAccessBucket bucket = bucketFactory.makeBucket(length);
    OutputStream os = bucket.getOutputStreamUnbuffered();
    try {
    os.write(data, offset, length);
    } finally {
    os.close();
    }
    bucket.setReadOnly();
    return bucket;
  }

View Full Code Here

    
    public static RandomAccessBucket toRandomAccessBucket(Bucket bucket, BucketFactory bf) throws IOException {
        if(bucket instanceof RandomAccessBucket)
            return (RandomAccessBucket)bucket;
        if(bucket instanceof DelayedFreeBucket) {
            RandomAccessBucket ret = ((DelayedFreeBucket)bucket).toRandomAccessBucket();
            if(ret != null) return ret;
        }
        RandomAccessBucket ret = bf.makeBucket(bucket.size());
        BucketTools.copy(bucket, ret);
        bucket.free();
        return ret;
    }

View Full Code Here

  }


  @Override
  public FreenetURI insertRedirect(FreenetURI insertURI, FreenetURI targetURI) throws InsertException {
    Metadata m = new Metadata(DocumentType.SIMPLE_REDIRECT, null, null, targetURI, new ClientMetadata());
    RandomAccessBucket b;
    try {
      b = m.toBucket(bucketFactory);
    } catch (IOException e) {
      Logger.error(this, "Bucket error: "+e, e);
      throw new InsertException(InsertExceptionMode.INTERNAL_ERROR, e, null);

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   * @exception IOException
   *                If it is not possible to create a temp bucket due to an
   *                I/O error
   */
  public TempBucket makeBucket(long size, float factor, long increment) throws IOException {
    RandomAccessBucket realBucket = null;
    boolean useRAMBucket = false;
    long now = System.currentTimeMillis();
    
    synchronized(this) {
      if((size > 0) && (size <= maxRAMBucketSize) && (bytesInUse < maxRamUsed) && (bytesInUse + size <= maxRamUsed)) {

View Full Code Here

  }
  
  private final Queue<WeakReference<Migratable>> ramBucketQueue = new LinkedBlockingQueue<WeakReference<Migratable>>();
  
  private RandomAccessBucket _makeFileBucket() throws IOException {
    RandomAccessBucket ret = new TempFileBucket(filenameGenerator.makeRandomFilename(), filenameGenerator, true);
    // Do we want it to be encrypted?
    if(reallyEncrypt) {
            ret = new PaddedRandomAccessBucket(ret);
        ret = new EncryptedRandomAccessBucket(CRYPT_TYPE, ret, secret);
    }

View Full Code Here

      synchronized(this) {
        if(!isRAMBucket() || hasBeenFreed)
          // Nothing to migrate! We don't want to switch back to ram, do we?          
          return false;
        toMigrate = currentBucket;
        RandomAccessBucket tempFB = _makeFileBucket();
        size = currentSize;
        if(os != null) {
          os.flush();
          os.close();
          // DO NOT INCREMENT THE osIndex HERE!
          os = tempFB.getOutputStreamUnbuffered();
          if(size > 0)
            BucketTools.copyTo(toMigrate, os, size);
        } else {
          if(size > 0) {
            OutputStream temp = tempFB.getOutputStreamUnbuffered();
            try {
            BucketTools.copyTo(toMigrate, temp, size);
            } finally {
            temp.close();
            }
          }
        }
        if(toMigrate.isReadOnly())
          tempFB.setReadOnly();
        
        closeInputStreams(false);
        
        currentBucket = tempFB;
        // We need streams to be reset to point to the new bucket

View Full Code Here

      buf = s.getBytes("UTF-8");
    } catch (UnsupportedEncodingException e) {
      throw new Error("Impossible: JVM doesn't support UTF-8: " + e, e);
    }
    
    RandomAccessBucket b = new SimpleReadOnlyArrayBucket(buf);
    
    long number = crypto.myARKNumber;
    InsertableClientSSK ark = crypto.myARK;
    FreenetURI uri = ark.getInsertURI().setKeyType("USK").setSuggestedEdition(number);

View Full Code Here

  public void resolve(String name) {
    this.resolvedName = name;
  }


  public RandomAccessBucket toBucket(BucketFactory bf) throws MetadataUnresolvedException, IOException {
      RandomAccessBucket b = bf.makeBucket(-1);
      DataOutputStream dos = null;
      boolean success = false;
      try {
          dos = new DataOutputStream(b.getOutputStream());
          writeTo(dos);
          dos.close();
          dos = null;
          b.setReadOnly(); // Must be after dos.close()
          success = true;
          return b;
      } finally {
          Closer.close(dos);
          if(!success) b.free();
      }
  }

View Full Code Here

  /** Create a persistent temporary bucket. Encrypted if appropriate. Wrapped in a 
   * DelayedFreeBucket so that they will not be deleted until after the transaction deleting 
   * them in the database commits. */
  @Override
  public RandomAccessBucket makeBucket(long size) throws IOException {
    RandomAccessBucket rawBucket = null;
    boolean mustWrap = true;
    if(rawBucket == null)
      rawBucket = new PersistentTempFileBucket(fg.makeRandomFilename(), fg, this);
    synchronized(encryptLock) {
        if(encrypt) {

View Full Code Here

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