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.

    this.uploadFrom = uploadFromType;
    this.origFilename = origFilename;
    // Now go through the fields one at a time
    String mimeType = contentType;
    this.clientToken = clientToken;
    RandomAccessBucket tempData = data;
    ClientMetadata cm = new ClientMetadata(mimeType);
    boolean isMetadata = false;
    if(logMINOR) Logger.minor(this, "data = "+tempData+", uploadFrom = "+uploadFrom);
    if(uploadFrom == UploadFrom.REDIRECT) {
      this.targetURI = redirectTarget;

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    if(mimeType != null && !DefaultMIMETypes.isPlausibleMIMEType(mimeType)) {
      throw new MessageInvalidException(ProtocolErrorMessage.BAD_MIME_TYPE, "Bad MIME type in Metadata.ContentType", identifier, global);
    }
    
    clientToken = message.clientToken;
    RandomAccessBucket tempData = message.getRandomAccessBucket();
    ClientMetadata cm = new ClientMetadata(mimeType);
    boolean isMetadata = false;
    if(logMINOR) Logger.minor(this, "data = "+tempData+", uploadFrom = "+uploadFrom);
    if(uploadFrom == UploadFrom.REDIRECT) {
      this.targetURI = message.redirectTarget;

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      String identifier, boolean global, BucketFactory bf) throws MessageInvalidException {
    String s = subset.get("DataLength");
    if(s == null)
      throw new MessageInvalidException(ProtocolErrorMessage.MISSING_FIELD, "UploadFrom=direct requires a DataLength for "+name, identifier, global);
    long length;
    RandomAccessBucket data;
    try {
      length = Long.parseLong(s);
    } catch (NumberFormatException e) {
      throw new MessageInvalidException(ProtocolErrorMessage.ERROR_PARSING_NUMBER, "Could not parse DataLength: "+e.toString(), identifier, global);
    }

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    private File getFile(TempBucket bucket) {
        if(!this.enableCrypto())
            return ((TempFileBucket)(((TempBucket) bucket).getUnderlying())).getFile();
        else {
            EncryptedRandomAccessBucket erab = (EncryptedRandomAccessBucket) bucket.getUnderlying();
            RandomAccessBucket b = erab.getUnderlying();
            if(b instanceof PaddedRandomAccessBucket) {
                b = ((PaddedRandomAccessBucket)b).getUnderlying();
            }
            return ((TempFileBucket) b).getFile();
        }

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    if(len < 0) return;
    if(len == 0) {
      bucket = new NullBucket();
      return;
    }
    RandomAccessBucket tempBucket;
    try {
      tempBucket = createBucket(bf, len, server);
    } catch (IOException e) {
      Logger.error(this, "Bucket error: "+e, e);
      FileUtil.copy(is, new NullOutputStream(), len);

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    public void testIrregularWrites() throws IOException {
        Random r = new Random(6032405);
        int length = 1024*64+1;
        byte[] data = new byte[length];
        RandomAccessBucket bucket = (RandomAccessBucket) makeBucket(length);
        OutputStream os = bucket.getOutputStream();
        r.nextBytes(data);
        for(int written=0;written<length;) {
            int toWrite = Math.min(length - written, 4095);
            os.write(data, written, toWrite);
            written += toWrite;
        }
        os.close();
        InputStream is = bucket.getInputStream();
        for(int moved=0;moved<length;) {
            int readBytes = Math.min(length - moved, 4095);
            byte[] buf = new byte[readBytes];
            readBytes = is.read(buf);
            assertTrue(readBytes > 0);
            assertTrue(Arrays.equals(Arrays.copyOfRange(buf, 0, readBytes), Arrays.copyOfRange(data, moved, moved+readBytes)));
            moved += readBytes;
        }
        is.close();
        bucket.free();
    }

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    public void testIrregularWritesNotOverlapping() throws IOException {
        Random r = new Random(6032405);
        int length = 1024*64+1;
        byte[] data = new byte[length];
        RandomAccessBucket bucket = (RandomAccessBucket) makeBucket(length);
        OutputStream os = bucket.getOutputStream();
        r.nextBytes(data);
        for(int written=0;written<length;) {
            int toWrite = Math.min(length - written, 4095);
            os.write(data, written, toWrite);
            written += toWrite;
        }
        os.close();
        InputStream is = bucket.getInputStream();
        for(int moved=0;moved<length;) {
            int readBytes = Math.min(length - moved, 4093); // Co-prime with 4095
            byte[] buf = new byte[readBytes];
            readBytes = is.read(buf);
            assertTrue(readBytes > 0);
            assertTrue(Arrays.equals(Arrays.copyOfRange(buf, 0, readBytes), Arrays.copyOfRange(data, moved, moved+readBytes)));
            moved += readBytes;
        }
        is.close();
        bucket.free();
    }

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    public void testBucketToRAF() throws IOException {
        Random r = new Random(6032405);
        int length = 1024*64+1;
        byte[] data = new byte[length];
        RandomAccessBucket bucket = (RandomAccessBucket) makeBucket(length);
        OutputStream os = bucket.getOutputStream();
        r.nextBytes(data);
        for(int written=0;written<length;) {
            int toWrite = Math.min(length - written, 4095);
            os.write(data, written, toWrite);
            written += toWrite;
        }
        os.close();
        InputStream is = bucket.getInputStream();
        for(int moved=0;moved<length;) {
            int readBytes = Math.min(length - moved, 4095);
            byte[] buf = new byte[readBytes];
            readBytes = is.read(buf);
            assertTrue(readBytes > 0);
            assertTrue(Arrays.equals(Arrays.copyOfRange(buf, 0, readBytes), Arrays.copyOfRange(data, moved, moved+readBytes)));
            moved += readBytes;
        }
        LockableRandomAccessBuffer raf = bucket.toRandomAccessBuffer();
        assertEquals(length, raf.size());
        RAFBucket wrapped = new RAFBucket(raf);
        assertTrue(BucketTools.equalBuckets(bucket, wrapped));
        for(int i=0;i<100;i++) {
            int end = length == 1 ? 1 : r.nextInt(length)+1;

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      System.out.println("SEED-TIME:" + (t2 - t1));
      csvLine.add(String.valueOf(t2 - t1));


      // PUSH N+1 BLOCKS
      for (int i = 0; i <= MAX_N; i++) {
          RandomAccessBucket data = randomData(node);
        HighLevelSimpleClient client = node.clientCore.makeClient((short) 0, false, false);
        FreenetURI uri = new FreenetURI("KSK@" + uid + "-" + dateFormat.format(today.getTime()) + "-" + i);
        System.out.println("PUSHING " + uri);
        client.addEventHook(new ClientEventListener() {


          @Override
          public void receive(ClientEvent ce, ClientContext context) {
            System.out.println(ce.getDescription());
          }
          
        });


        try {
          InsertBlock block = new InsertBlock(data, new ClientMetadata(), uri);
          t1 = System.currentTimeMillis();
          client.insert(block, false, null);
          t2 = System.currentTimeMillis();


          System.out.println("PUSH-TIME-" + i + ":" + (t2 - t1));
          csvLine.add(String.valueOf(t2 - t1));
        } catch (InsertException e) {
          e.printStackTrace();
          csvLine.add("N/A");
        }


        data.free();
      }


      node.park();


      // Node 2

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    final String[] pullFailures;
  }
  


  private static RandomAccessBucket randomData(Node node) throws IOException {
      RandomAccessBucket data = node.clientCore.tempBucketFactory.makeBucket(TEST_SIZE);
    OutputStream os = data.getOutputStream();
    try {
    byte[] buf = new byte[4096];
    for (long written = 0; written < TEST_SIZE;) {
      node.fastWeakRandom.nextBytes(buf);
      int toWrite = (int) Math.min(TEST_SIZE - written, buf.length);

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