/**
* Goes through SynapsePath argument list, evaluating each by calling stringValueOf and returns a
* HashMap String, String array where each item will contain a hash map with key "evaluated
* expression" and value "SynapsePath type".
*
* @param synCtx
* @return
*/
private HashMap<String, String>[] getArgValues(MessageContext synCtx) {
HashMap<String, String>[] argValues = new HashMap[pathArgumentList.size()];
HashMap<String, String> valueMap;
String value = "";
for (int i = 0; i < pathArgumentList.size(); ++i) {
/*ToDo use foreach*/
Argument arg = pathArgumentList.get(i);
if (arg.getValue() != null) {
value = arg.getValue();
if (!isWellFormedXML(value)) {
value = StringEscapeUtils.escapeXml(value);
}
value = Matcher.quoteReplacement(value);
} else if (arg.getExpression() != null) {
value = arg.getExpression().stringValueOf(synCtx);
if (value != null) {
// XML escape the result of an expression that produces a literal, if the target format
// of the payload is XML.
if (!isWellFormedXML(value)
&& !arg.getExpression().getPathType().equals(SynapsePath.JSON_PATH)
&& XML_TYPE.equals(getType())) {
value = StringEscapeUtils.escapeXml(value);
}
value = Matcher.quoteReplacement(value);
} else {
value = "";
}
} else {
handleException("Unexpected arg type detected", synCtx);
}
// value = value.replace(String.valueOf((char) 160), " ").trim();
valueMap = new HashMap<String, String>();
if (null != arg.getExpression()) {
valueMap.put(value, arg.getExpression().getPathType());
} else {
valueMap.put(value, SynapsePath.X_PATH);
}
argValues[i] = valueMap;
}
return argValues;
}
/**
* Replaces the payload format with SynapsePath arguments which are evaluated using
* getArgValues().
*
* @param format
* @param result
* @param synCtx
*/
private void replace(String format, StringBuffer result, MessageContext synCtx) {
HashMap<String, String>[] argValues = getArgValues(synCtx);
HashMap<String, String> replacement;
Map.Entry<String, String> replacementEntry;
String replacementValue = null;
Matcher matcher;
matcher = pattern.matcher(format);
try {
while (matcher.find()) {
String matchSeq = matcher.group();
int argIndex;
try {
argIndex = Integer.parseInt(matchSeq.substring(1, matchSeq.length()));
} catch (NumberFormatException e) {
argIndex = Integer.parseInt(matchSeq.substring(2, matchSeq.length() - 1));
}
replacement = argValues[argIndex - 1];
replacementEntry = replacement.entrySet().iterator().next();
if (mediaType.equals(JSON_TYPE)
&& inferReplacementType(replacementEntry).equals(XML_TYPE)) {
// XML to JSON conversion here
try {
replacementValue = "<jsonObject>" + replacementEntry.getKey() + "</jsonObject>";
OMElement omXML = AXIOMUtil.stringToOM(replacementValue);
replacementValue =
JsonUtil.toJsonString(omXML)
.toString()
.replaceAll(
ESCAPE_DOUBLE_QUOTE_WITH_FIVE_BACK_SLASHES,
ESCAPE_DOUBLE_QUOTE_WITH_NINE_BACK_SLASHES)
.replaceAll(
ESCAPE_DOLLAR_WITH_TEN_BACK_SLASHES, ESCAPE_DOLLAR_WITH_SIX_BACK_SLASHES);
replacementValue = JsonUtil.toJsonString(omXML).toString();
} catch (XMLStreamException e) {
handleException(
"Error parsing XML for JSON conversion, please check your xPath expressions return valid XML: ",
synCtx);
} catch (AxisFault e) {
handleException("Error converting XML to JSON", synCtx);
}
} else if (mediaType.equals(XML_TYPE)
&& inferReplacementType(replacementEntry).equals(JSON_TYPE)) {
// JSON to XML conversion here
try {
OMElement omXML =
JsonUtil.toXml(IOUtils.toInputStream(replacementEntry.getKey()), false);
if (JsonUtil.isAJsonPayloadElement(omXML)) { // remove <jsonObject/> from result.
Iterator children = omXML.getChildElements();
String childrenStr = "";
while (children.hasNext()) {
childrenStr += (children.next()).toString().trim();
}
replacementValue = childrenStr;
} else { /// ~
replacementValue = omXML.toString();
}
// replacementValue = omXML.toString();
} catch (AxisFault e) {
handleException(
"Error converting JSON to XML, please check your JSON Path expressions return valid JSON: ",
synCtx);
}
} else {
// No conversion required, as path evaluates to regular String.
replacementValue = replacementEntry.getKey();
// This is to replace " with \" and \\ with \\\\
if (mediaType.equals(JSON_TYPE)
&& inferReplacementType(replacementEntry).equals(STRING_TYPE)
&& (!replacementValue.startsWith("{") && !replacementValue.startsWith("["))) {
replacementValue =
replacementValue
.replaceAll(
Matcher.quoteReplacement("\\\\"),
ESCAPE_BACK_SLASH_WITH_SIXTEEN_BACK_SLASHES)
.replaceAll("\"", ESCAPE_DOUBLE_QUOTE_WITH_TEN_BACK_SLASHES);
} else if ((mediaType.equals(JSON_TYPE)
&& inferReplacementType(replacementEntry).equals(JSON_TYPE))
&& (!replacementValue.startsWith("{") && !replacementValue.startsWith("["))) {
// This is to handle only the string value
replacementValue =
replacementValue.replaceAll("\"", ESCAPE_DOUBLE_QUOTE_WITH_TEN_BACK_SLASHES);
}
}
matcher.appendReplacement(result, replacementValue);
}
} catch (ArrayIndexOutOfBoundsException e) {
log.error("#replace. Mis-match detected between number of formatters and arguments", e);
}
matcher.appendTail(result);
}