Package org.apache.activemq.util

Examples of org.apache.activemq.util.ByteArrayOutputStream

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    }

    private void trace(DataStructure command) {
        try {

            ByteArrayOutputStream baos = new ByteArrayOutputStream(maxTraceDatagramSize);
            DataOutputStream out = new DataOutputStream(baos);
            wireFormat.marshal(brokerId, out);
            wireFormat.marshal(command, out);
            out.close();
            ByteSequence sequence = baos.toByteSequence();
            DatagramPacket datagram = new DatagramPacket(sequence.getData(), sequence.getOffset(), sequence.getLength(), address);
            socket.send(datagram);

        } catch (Throwable e) {
            LOG.debug("Failed to trace: " + command, e);
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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 void initializeWriting() throws JMSException {
        checkReadOnlyBody();
        if (this.dataOut == null) {
            this.bytesOut = new ByteArrayOutputStream();
            OutputStream os = bytesOut;
            ActiveMQConnection connection = getConnection();
            if (connection != null && connection.isUseCompression()) {
                // keep track of the real length of the content if
                // we are compressed.
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    @Override
    protected void doCompress() throws IOException {
        compressed = true;
        ByteSequence bytes = getContent();
        int length = bytes.getLength();
        ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
        bytesOut.write(new byte[4]);
        DeflaterOutputStream os = new DeflaterOutputStream(bytesOut);
        DataOutputStream dataOut = new DataOutputStream(os);
        dataOut.write(bytes.data, bytes.offset, bytes.length);
        dataOut.flush();
        dataOut.close();
        bytes = bytesOut.toByteSequence();
        ByteSequenceData.writeIntBig(bytes, length);
        bytes.offset = 0;
        setContent(bytes);
    }
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    @Override
    public void storeContent() {
        try {
            ByteSequence content = getContent();
            if (content == null && text != null) {
                ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
                OutputStream os = bytesOut;
                ActiveMQConnection connection = getConnection();
                if (connection != null && connection.isUseCompression()) {
                    compressed = true;
                    os = new DeflaterOutputStream(os);
                }
                DataOutputStream dataOut = new DataOutputStream(os);
                MarshallingSupport.writeUTF8(dataOut, this.text);
                dataOut.close();
                setContent(bytesOut.toByteSequence());
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
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        if (LOG.isDebugEnabled()) {
            LOG.debug("Exception detail", exception);
        }

        // Let the stomp client know about any protocol errors.
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        PrintWriter stream = new PrintWriter(new OutputStreamWriter(baos, "UTF-8"));
        exception.printStackTrace(stream);
        stream.close();

        HashMap<String, String> headers = new HashMap<String, String>();
        headers.put(Stomp.Headers.Error.MESSAGE, exception.getMessage());
        headers.put(Stomp.Headers.CONTENT_TYPE, "text/plain");

        if (command != null) {
            final String receiptId = command.getHeaders().get(Stomp.Headers.RECEIPT_REQUESTED);
            if (receiptId != null) {
                headers.put(Stomp.Headers.Response.RECEIPT_ID, receiptId);
            }
        }

        StompFrame errorMessage = new StompFrame(Stomp.Responses.ERROR, headers, baos.toByteArray());
        sendToStomp(errorMessage);
    }
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//        return type;
//    }


    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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        if (headers.containsKey(Stomp.Headers.AMQ_MESSAGE_TYPE)) {
            String intendedType = (String)headers.get(Stomp.Headers.AMQ_MESSAGE_TYPE);
            if(intendedType.equalsIgnoreCase("text")){
                ActiveMQTextMessage text = new ActiveMQTextMessage();
                try {
                    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());
                    data.close();
                } 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 {
                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());
                data.close();
            } catch (Throwable e) {
                throw new ProtocolException("Text could not bet set: " + e, false, e);
            }
            msg = text;
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    @Override
    public void storeContent() {
        ByteSequence bodyAsBytes = getContent();
        if (bodyAsBytes == null && object != null) {
            try {
                ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
                OutputStream os = bytesOut;
                ActiveMQConnection connection = getConnection();
                if (connection != null && connection.isUseCompression()) {
                    compressed = true;
                    os = new DeflaterOutputStream(os);
                }
                DataOutputStream dataOut = new DataOutputStream(os);
                ObjectOutputStream objOut = new ObjectOutputStream(dataOut);
                objOut.writeObject(object);
                objOut.flush();
                objOut.reset();
                objOut.close();
                setContent(bytesOut.toByteSequence());
            } catch (IOException ioe) {
                throw new RuntimeException(ioe.getMessage(), ioe);
            }
        }
    }
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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) {
                        bytesOut.write(data, 0, read);
                    }
                    byteSequence = bytesOut.toByteSequence();
                    bytesOut.close();
                }
                result.payload(new Buffer(byteSequence.data, byteSequence.offset, byteSequence.length));
            }
        }
        return result;
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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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