Package org.apache.activemq.util

Examples of org.apache.activemq.util.ByteArrayOutputStream

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            String intendedType = (String)headers.get(Stomp.Headers.AMQ_MESSAGE_TYPE);
            if(intendedType.equalsIgnoreCase("text")){
                ActiveMQTextMessage text = new ActiveMQTextMessage();
                try {
                    //text.setText(new String(command.getContent(), "UTF-8"));
                    ByteArrayOutputStream bytes = new ByteArrayOutputStream(command.getContent().length + 4);
                    DataOutputStream data = new DataOutputStream(bytes);
                    data.writeInt(command.getContent().length);
                    data.write(command.getContent());
                    text.setContent(bytes.toByteSequence());
                } catch (Throwable e) {
                    throw new ProtocolException("Text could not bet set: " + e, false, e);
                }
                msg = text;
            } else if(intendedType.equalsIgnoreCase("bytes")) {
                ActiveMQBytesMessage byteMessage = new ActiveMQBytesMessage();
                byteMessage.writeBytes(command.getContent());
                msg = byteMessage;
            } else {
                throw new ProtocolException("Unsupported message type '"+intendedType+"'",false);
            }
        }else if (headers.containsKey(Stomp.Headers.CONTENT_LENGTH)) {
            headers.remove(Stomp.Headers.CONTENT_LENGTH);
            ActiveMQBytesMessage bm = new ActiveMQBytesMessage();
            bm.writeBytes(command.getContent());
            msg = bm;
        } else {
            ActiveMQTextMessage text = new ActiveMQTextMessage();
            try {
                //text.setText(new String(command.getContent(), "UTF-8"));
                ByteArrayOutputStream bytes = new ByteArrayOutputStream(command.getContent().length + 4);
                DataOutputStream data = new DataOutputStream(bytes);
                data.writeInt(command.getContent().length);
                data.write(command.getContent());
                text.setContent(bytes.toByteSequence());
            } catch (Throwable e) {
                throw new ProtocolException("Text could not bet set: " + e, false, e);
            }
            msg = text;
        }
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                return null;
            }
            Blob blob = rs.getBlob(1);
            InputStream is = blob.getBinaryStream();

            ByteArrayOutputStream os = new ByteArrayOutputStream((int)blob.length());
            int ch;
            while ((ch = is.read()) >= 0) {
                os.write(ch);
            }
            is.close();
            os.close();

            return os.toByteArray();

        } finally {
            cleanupExclusiveLock.readLock().unlock();
            close(rs);
            close(s);
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        if (message.isCompressed()) {
            Inflater inflater = new Inflater();
            inflater.setInput(byteSequence.data, byteSequence.offset, byteSequence.length);
            byte[] data = new byte[4096];
            int read;
            ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
            while ((read = inflater.inflate(data, 0, data.length)) != 0) {
                bytesOut.write(data, 0, read);
            }
            byteSequence = bytesOut.toByteSequence();
        }

        if (message.getDataStructureType() == ActiveMQTextMessage.DATA_STRUCTURE_TYPE) {
            if (byteSequence.getLength() > 4) {
                byte[] content = new byte[byteSequence.getLength() - 4];
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        HttpPost httpMethod = new HttpPost(getRemoteUrl().toString());
        configureMethod(httpMethod);
        String data = getTextWireFormat().marshalText(command);
        byte[] bytes = data.getBytes("UTF-8");
        if (useCompression && canSendCompressed && bytes.length > minSendAsCompressedSize) {
            ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
            GZIPOutputStream stream = new GZIPOutputStream(bytesOut);
            stream.write(bytes);
            stream.close();
            httpMethod.addHeader("Content-Type", "application/x-gzip");
            if (LOG.isTraceEnabled()) {
                LOG.trace("Sending compressed, size = " + bytes.length + ", compressed size = " + bytesOut.size());
            }
            bytes = bytesOut.toByteArray();
        }
        ByteArrayEntity entity = new ByteArrayEntity(bytes);
        httpMethod.setEntity(entity);

        HttpClient client = null;
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    private boolean encodingEnabled = false;
    private int version = 1;

    public ByteSequence marshal(Object command) throws IOException {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        DataOutputStream dos = new DataOutputStream(baos);
        marshal(command, dos);
        dos.close();
        return baos.toByteSequence();
    }
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            } else {

                // We don't know how much to read.. data ends when we hit a 0
                byte b;
                ByteArrayOutputStream baos = null;
                while ((b = in.readByte()) != 0) {

                    if (baos == null) {
                        baos = new ByteArrayOutputStream();
                    } else if (baos.size() > MAX_DATA_LENGTH) {
                        throw new ProtocolException("The maximum data length was exceeded", true);
                    }

                    baos.write(b);
                }

                if (baos != null) {
                    baos.close();
                    data = baos.toByteArray();
                }
            }

            return new StompFrame(action, headers, data);
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        return new String(sequence.getData(), sequence.getOffset(), sequence.getLength(), "UTF-8").trim();
    }

    private ByteSequence readHeaderLine(DataInput in, int maxLength, String errorMessage) throws IOException {
        byte b;
        ByteArrayOutputStream baos = new ByteArrayOutputStream(maxLength);
        while ((b = in.readByte()) != '\n') {
            if (baos.size() > maxLength) {
                throw new ProtocolException(errorMessage, true);
            }
            baos.write(b);
        }
        baos.close();
        return baos.toByteSequence();
    }
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                }

                try {

                    ByteArrayInputStream headerLine = new ByteArrayInputStream(line);
                    ByteArrayOutputStream stream = new ByteArrayOutputStream(line.length);

                    // First complete the name
                    int result = -1;
                    while ((result = headerLine.read()) != -1) {
                        if (result != ':') {
                            stream.write(result);
                        } else {
                            break;
                        }
                    }

                    ByteSequence nameSeq = stream.toByteSequence();
                    String name = new String(nameSeq.getData(), nameSeq.getOffset(), nameSeq.getLength(), "UTF-8").trim();
                    String value = decodeHeader(headerLine);
                    headers.put(name, value);
                } catch (Exception e) {
                    throw new ProtocolException("Unable to parser header line [" + line + "]", true);
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    private String encodeHeader(String header) throws IOException {
        String result = header;
        if (this.encodingEnabled) {
            byte[] utf8buf = header.getBytes("UTF-8");
            ByteArrayOutputStream stream = new ByteArrayOutputStream(utf8buf.length);
            for(byte val : utf8buf) {
                switch(val) {
                case Stomp.ESCAPE:
                    stream.write(Stomp.ESCAPE_ESCAPE_SEQ);
                    break;
                case Stomp.BREAK:
                    stream.write(Stomp.NEWLINE_ESCAPE_SEQ);
                    break;
                case Stomp.COLON:
                    stream.write(Stomp.COLON_ESCAPE_SEQ);
                    break;
                default:
                    stream.write(val);
                }
            }
            result =  new String(stream.toByteArray(), "UTF-8");
        }

        return result;
    }
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        return result;
    }

    private String decodeHeader(InputStream header) throws IOException {
        ByteArrayOutputStream decoded = new ByteArrayOutputStream();
        PushbackInputStream stream = new PushbackInputStream(header);

        int value = -1;
        while( (value = stream.read()) != -1) {
            if (value == 92) {

                int next = stream.read();
                if (next != -1) {
                    switch(next) {
                    case 110:
                        decoded.write(Stomp.BREAK);
                        break;
                    case 99:
                        decoded.write(Stomp.COLON);
                        break;
                    case 92:
                        decoded.write(Stomp.ESCAPE);
                        break;
                    default:
                        stream.unread(next);
                        decoded.write(value);
                    }
                } else {
                    decoded.write(value);
                }

            } else {
                decoded.write(value);
            }
        }

        return new String(decoded.toByteArray(), "UTF-8");
    }
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Related Classes of org.apache.activemq.util.ByteArrayOutputStream

  • org.apache.activemq.broker.util.UDPTraceBrokerPlugin
  • org.apache.activemq.command.ActiveMQBytesMessage
  • org.apache.activemq.command.ActiveMQMapMessage
  • org.apache.activemq.command.ActiveMQObjectMessage
  • org.apache.activemq.command.ActiveMQStreamMessage
  • org.apache.activemq.command.ActiveMQTextMessage
  • org.apache.activemq.command.ActiveMQTextMessageTest
  • org.apache.activemq.command.Message
  • org.apache.activemq.command.WireFormatInfo
  • org.apache.activemq.openwire.v1.MessageTestSupport
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