/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.synapse.transport.fix.message;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Iterator;
import java.util.List;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import org.apache.axiom.attachments.ByteArrayDataSource;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axiom.soap.SOAPFactory;
import org.apache.axiom.soap.impl.llom.soap11.SOAP11Factory;
import org.apache.axis2.AxisFault;
import org.apache.axis2.Constants;
import org.apache.axis2.builder.Builder;
import org.apache.axis2.context.MessageContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import quickfix.DataDictionary;
import quickfix.DefaultDataDictionaryProvider;
import quickfix.FieldMap;
import quickfix.Group;
import quickfix.InvalidMessage;
import quickfix.MessageUtils;
import quickfix.field.BeginString;
/**
* Fix message builder prepares a payload based on the incoming raw fix message
* read from the
* destination,the implementation only focusing the building the message
* context, there will be
* limitations such as when build message there wont be fix session attribute
* involved and the assumption
* is that the fix client and executor has the responsibilities of managing fix
* session accordingly
*
*/
public class FIXMessageBuilder implements Builder {
private static final Log log = LogFactory.getLog(FIXMessageBuilder.class);
public OMElement processDocument(InputStream inputStream, String contentType, MessageContext messageContext) throws AxisFault {
Reader reader = null;
StringBuilder messageString = new StringBuilder();
quickfix.Message message = null;
try {
String charSetEncoding = (String) messageContext.getProperty(Constants.Configuration.CHARACTER_SET_ENCODING);
if (charSetEncoding == null) {
charSetEncoding = MessageContext.DEFAULT_CHAR_SET_ENCODING;
}
reader = new InputStreamReader(inputStream, charSetEncoding);
try {
int data = reader.read();
while (data != -1) {
char dataChar = (char) data;
data = reader.read();
messageString.append(dataChar);
}
} catch (Exception e) {
// TODO Auto-generated catch block
log.error("Error In creating FIX SOAP envelope ...", e);
throw new AxisFault(e.getMessage());
}
} catch (Exception e) {
// TODO Auto-generated catch block
log.error("Error In creating FIX SOAP envelope ...", e);
throw new AxisFault(e.getMessage());
}
try {
DefaultDataDictionaryProvider dataDictionary = new DefaultDataDictionaryProvider();
String beginString = MessageUtils.getStringField(messageString.toString(), BeginString.FIELD);
DataDictionary dataDic = dataDictionary.getSessionDataDictionary(beginString);
message = new quickfix.Message(messageString.toString(), null, false);
} catch (InvalidMessage e) {
// TODO Auto-generated catch block
log.error("Error In creating FIX SOAP envelope ...", e);
throw new AxisFault(e.getMessage());
}
if (log.isDebugEnabled()) {
log.debug("Creating SOAP envelope for FIX message...");
}
SOAPFactory soapFactory = new SOAP11Factory();
OMElement msg = soapFactory.createOMElement(FIXConstants.FIX_MESSAGE, null);
msg.addAttribute(soapFactory.createOMAttribute(FIXConstants.FIX_MESSAGE_INCOMING_SESSION, null, ""));
msg.addAttribute(soapFactory.createOMAttribute(FIXConstants.FIX_MESSAGE_COUNTER, null, String.valueOf("-1")));
OMElement header = soapFactory.createOMElement(FIXConstants.FIX_HEADER, null);
OMElement body = soapFactory.createOMElement(FIXConstants.FIX_BODY, null);
OMElement trailer = soapFactory.createOMElement(FIXConstants.FIX_TRAILER, null);
// process FIX header
Iterator<quickfix.Field<?>> iter = message.getHeader().iterator();
if (iter != null) {
while (iter.hasNext()) {
quickfix.Field<?> field = iter.next();
OMElement msgField = soapFactory.createOMElement(FIXConstants.FIX_FIELD, null);
msgField.addAttribute(soapFactory.createOMAttribute(FIXConstants.FIX_FIELD_ID, null, String.valueOf(field.getTag())));
Object value = field.getObject();
if (value instanceof byte[]) {
DataSource dataSource = new ByteArrayDataSource((byte[]) value);
DataHandler dataHandler = new DataHandler(dataSource);
String contentID = messageContext.addAttachment(dataHandler);
OMElement binaryData = soapFactory.createOMElement(FIXConstants.FIX_BINARY_FIELD, null);
String binaryCID = "cid:" + contentID;
binaryData.addAttribute(FIXConstants.FIX_MESSAGE_REFERENCE, binaryCID, null);
msgField.addChild(binaryData);
} else {
soapFactory.createOMText(msgField, value.toString(), OMElement.CDATA_SECTION_NODE);
}
header.addChild(msgField);
}
}
// process FIX body
convertFIXBodyToXML(message, body, soapFactory, messageContext);
// process FIX trailer
iter = message.getTrailer().iterator();
if (iter != null) {
while (iter.hasNext()) {
quickfix.Field<?> field = iter.next();
OMElement msgField = soapFactory.createOMElement(FIXConstants.FIX_FIELD, null);
msgField.addAttribute(soapFactory.createOMAttribute(FIXConstants.FIX_FIELD_ID, null, String.valueOf(field.getTag())));
Object value = field.getObject();
if (value instanceof byte[]) {
DataSource dataSource = new ByteArrayDataSource((byte[]) value);
DataHandler dataHandler = new DataHandler(dataSource);
String contentID = messageContext.addAttachment(dataHandler);
OMElement binaryData = soapFactory.createOMElement(FIXConstants.FIX_BINARY_FIELD, null);
String binaryCID = "cid:" + contentID;
binaryData.addAttribute(FIXConstants.FIX_MESSAGE_REFERENCE, binaryCID, null);
msgField.addChild(binaryData);
} else {
soapFactory.createOMText(msgField, value.toString(), OMElement.CDATA_SECTION_NODE);
}
trailer.addChild(msgField);
}
}
msg.addChild(header);
msg.addChild(body);
msg.addChild(trailer);
SOAPEnvelope envelope = soapFactory.getDefaultEnvelope();
envelope.getBody().addChild(msg);
messageContext.setEnvelope(envelope);
return msg;
}
/**
* Constructs the XML infoset for the FIX message body
*
* @param message
* the FIX message
* @param body
* the body element of the XML infoset
* @param soapFactory
* the SOAP factory to create XML elements
* @param msgCtx
* the Axis2 Message context
* @throws AxisFault
* on error
*/
private void convertFIXBodyToXML(FieldMap message, OMElement body, SOAPFactory soapFactory, MessageContext msgCtx) throws AxisFault {
if (log.isDebugEnabled()) {
log.debug("Generating FIX message body (Message ID: " + msgCtx.getMessageID() + ")");
}
Iterator<quickfix.Field<?>> iter = message.iterator();
if (iter != null) {
while (iter.hasNext()) {
quickfix.Field<?> field = iter.next();
OMElement msgField = soapFactory.createOMElement(FIXConstants.FIX_FIELD, null);
msgField.addAttribute(soapFactory.createOMAttribute(FIXConstants.FIX_FIELD_ID, null, String.valueOf(field.getTag())));
Object value = field.getObject();
if (value instanceof byte[]) {
DataSource dataSource = new ByteArrayDataSource((byte[]) value);
DataHandler dataHandler = new DataHandler(dataSource);
String contentID = msgCtx.addAttachment(dataHandler);
OMElement binaryData = soapFactory.createOMElement(FIXConstants.FIX_BINARY_FIELD, null);
String binaryCID = "cid:" + contentID;
binaryData.addAttribute(FIXConstants.FIX_MESSAGE_REFERENCE, binaryCID, null);
msgField.addChild(binaryData);
} else {
soapFactory.createOMText(msgField, value.toString(), OMElement.CDATA_SECTION_NODE);
}
body.addChild(msgField);
}
}
// process FIX repeating groups
Iterator<Integer> groupKeyItr = message.groupKeyIterator();
if (groupKeyItr != null) {
while (groupKeyItr.hasNext()) {
int groupKey = groupKeyItr.next();
OMElement groupsField = soapFactory.createOMElement(FIXConstants.FIX_GROUPS, null);
groupsField.addAttribute(FIXConstants.FIX_FIELD_ID, String.valueOf(groupKey), null);
List<Group> groupList = message.getGroups(groupKey);
Iterator<Group> groupIterator = groupList.iterator();
while (groupIterator.hasNext()) {
Group msgGroup = groupIterator.next();
OMElement groupField = soapFactory.createOMElement(FIXConstants.FIX_GROUP, null);
// rec. call the method to process the repeating groups
convertFIXBodyToXML(msgGroup, groupField, soapFactory, msgCtx);
groupsField.addChild(groupField);
}
body.addChild(groupsField);
}
}
}
}