private void serializeCollection(
StringWriter writer, String nestedFieldName, MetaCollection field, UserData data) {
int size, maxSize;
String typeName = field.getTypeName();
if ((typeName.equals("c_string"))
|| (typeName.equals("c_wstring"))
|| (typeName.startsWith("C_STRING<"))
|| (typeName.startsWith("C_WSTRING<"))) {
this.serializeString(writer, nestedFieldName, data);
} else { // Not a String collection.
maxSize = field.getMaxSize();
if (maxSize == 0) {
this.serializeUnboundedSequence(writer, nestedFieldName, field, data);
} else if (maxSize == -1) {
/* recursive type */
this.serializeRecursiveType(writer, nestedFieldName, field, data);
} else {
/* This is an array or bounded sequence. */
if (typeName.startsWith("C_ARRAY")) {
/* When dealing with an array, then the actual size
* is the same as the maximum size. */
size = maxSize;
} else {
/* When dealing with a bounded sequence, then the actual
* size can differ from the maximum size. */
size = getSequenceSize(nestedFieldName, field, data);
/* Also, we need this size within the data. */
writer.write("<size>" + size + "</size>");
}
/* Now, fill up the elements. */
for (int i = 0; i < size; i++) {
writer.write("<element>");
this.serializeType(
writer, getCollectionFieldName(nestedFieldName, i), field.getSubType(), data, false);
writer.write("</element>");
}
}
}
}
/**
* Serializes an unbounded sequence.
*
* @param nestedFieldName The name of the field (including scope)
* @param seqType The type of the sequence.
* @param data The data to serialize.
*/
private void serializeUnboundedSequence(
StringWriter writer, String nestedFieldName, MetaCollection seqType, UserData data) {
String value;
String typeName;
StringTokenizer tokenizer;
MetaField subType = seqType.getSubType();
String token;
String seqTypeName;
seqTypeName = seqType.getTypeName();
if (subType instanceof MetaPrimitive) {
value = data.getFieldValue(nestedFieldName);
if (value != null) {
if (value.equals("NULL")) {
writer.write("<NULL>");
} else if (value.equals("[]")) {
writer.write("<size>0</size>");
} else {
tokenizer = new StringTokenizer(value.substring(1, value.length() - 1), ",");
int size = tokenizer.countTokens();
writer.write("<size>" + size + "</size>");
for (int i = 0; i < size; i++) {
token = tokenizer.nextToken();
writer.write("<element>" + token + "</element>");
}
}
} else {
// also check for the alternative notation
value = data.getFieldValue(nestedFieldName + "[0]");
if (value != null) {
List<String> values = new ArrayList<String>();
int index = 1;
while (value != null) {
values.add(value);
value = data.getFieldValue(nestedFieldName + "[" + index + "]");
index++;
}
writer.write("<size>" + values.size() + "</size>");
Iterator<String> it = values.iterator();
while (it.hasNext()) {
writer.write("<element>" + it.next() + "</element>");
}
} else {
writer.write("<NULL>");
}
}
} else if (subType instanceof MetaCollection) {
typeName = subType.getTypeName();
if ((typeName.equals("c_string"))
|| (typeName.equals("c_wstring"))
|| (typeName.startsWith("C_STRING<"))
|| (typeName.startsWith("C_WSTRING<"))) {
value = data.getFieldValue(nestedFieldName);
if (value != null) {
if (value.equals("NULL")) {
writer.write("<NULL>");
} else if (value.equals("[]")) {
if (!(seqTypeName.startsWith("C_ARRAY"))) {
writer.write("<size>0</size>");
}
} else {
tokenizer = new StringTokenizer(value.substring(1, value.length() - 1), ",");
int size = tokenizer.countTokens();
if (!(seqTypeName.startsWith("C_ARRAY"))) {
writer.write("<size>" + size + "</size>");
}
for (int i = 0; i < size; i++) {
token = tokenizer.nextToken();
writer.write("<element>" + token + "</element>");
}
}
} else {
writer.write("<NULL>");
}
}
} else if (subType instanceof MetaStruct) {
int size = 0;
StringWriter localWriter = new StringWriter();
// Verify if member "size" exists, if so, then serialize and
// increment
LinkedHashSet<String> fields = data.getFieldNames();
boolean found = true;
while (found) {
String entryFieldName = nestedFieldName + "[" + size + "]";
boolean fieldExists = false;
Iterator<String> it = fields.iterator();
while (!fieldExists && it.hasNext()) {
if (it.next().startsWith(entryFieldName)) {
fieldExists = true;
}
}
if (fieldExists) {
localWriter.write("<element>");
serializeStruct(localWriter, entryFieldName, (MetaStruct) subType, data);
localWriter.write("</element>");
size++;
} else {
found = false;
}
}
if (size == 0) {
writer.write("<NULL>");
} else {
writer.write("<size>" + size + "</size>");
}
writer.write(localWriter.toString());
} else if (subType instanceof MetaUnion) {
int size = 0;
StringWriter localWriter = new StringWriter();
// Verify if member "size" exists, if so, then serialize and
// increment
LinkedHashSet<String> fields = data.getFieldNames();
boolean found = true;
while (found) {
String entryFieldName = nestedFieldName + "[" + size + "]";
boolean fieldExists = false;
Iterator<String> it = fields.iterator();
while (!fieldExists && it.hasNext()) {
if (it.next().startsWith(entryFieldName)) {
fieldExists = true;
}
}
if (fieldExists) {
localWriter.write("<element>");
this.serializeUnion(localWriter, entryFieldName, (MetaUnion) subType, data);
localWriter.write("</element>");
size++;
} else {
found = false;
}
}
if (size == 0) {
writer.write("<NULL>");
} else {
writer.write("<size>" + size + "</size>");
}
writer.write(localWriter.toString());
} else {
writer.write("<NULL>");
}
return;
}
/**
* Acquires the number of elements of the supplied sequence.
*
* @param nestedFieldName The name of the field (including scope)
* @param seqType The type of the sequence.
* @param data The data that is being serialized.
* @return The number of elements in the given sequence.
*/
private int getSequenceSize(String nestedFieldName, MetaCollection seqType, UserData data) {
/*
* This is very much based on how serializeUnboundedSequence get
* the size of its unbounded sequence.
* The same actions can be used on bounded sequences as well to
* get their actual size (which can be less then their maximum
* size).
*/
int size = 0;
StringTokenizer tokenizer;
String typeName;
String value;
String token;
MetaField subType = seqType.getSubType();
if (subType instanceof MetaPrimitive) {
value = data.getFieldValue(nestedFieldName);
if (value != null) {
if (!(value.equals("NULL") || value.equals("[]"))) {
tokenizer = new StringTokenizer(value.substring(1, value.length() - 1), ",");
size = tokenizer.countTokens();
}
} else {
// also check for the alternative notation
value = data.getFieldValue(nestedFieldName + "[0]");
if (value != null) {
List<String> values = new ArrayList<String>();
int index = 1;
while (value != null) {
values.add(value);
value = data.getFieldValue(nestedFieldName + "[" + index + "]");
index++;
}
size = values.size();
}
}
} else if (subType instanceof MetaCollection) {
typeName = subType.getTypeName();
if ((typeName.equals("c_string"))
|| (typeName.equals("c_wstring"))
|| (typeName.startsWith("C_STRING<"))
|| (typeName.startsWith("C_WSTRING<"))) {
value = data.getFieldValue(nestedFieldName);
if (value != null) {
if (!(value.equals("NULL") || value.equals("[]"))) {
tokenizer = new StringTokenizer(value.substring(1, value.length() - 1), ",");
size = tokenizer.countTokens();
}
}
}
} else if ((subType instanceof MetaStruct) || (subType instanceof MetaUnion)) {
// Verify if member "size" exists, if so, then serialize and
// increment
LinkedHashSet<String> fields = data.getFieldNames();
boolean found = true;
while (found) {
String entryFieldName = nestedFieldName + "[" + size + "]";
boolean fieldExists = false;
Iterator<String> it = fields.iterator();
while (!fieldExists && it.hasNext()) {
if (it.next().startsWith(entryFieldName)) {
fieldExists = true;
}
}
if (fieldExists) {
size++;
} else {
found = false;
}
}
}
return size;
}
/**
* Serializes the contents of the supplied collection.
*
* @param nestedFieldName The name of the collection field in the data.
* @param colType The type of the collection.
* @param data The data to serialize.
* @return The serialized representation of the collection data.
*/
private String getSerializedStringCollection(
String nestedFieldName, MetaCollection colType, UserData data) {
String result = null;
String size = null;
String typeName = colType.getTypeName();
int index = nestedFieldName.indexOf('[');
String temp = null;
if ((typeName.equals("c_string"))
|| (typeName.equals("c_wstring"))
|| (typeName.startsWith("C_STRING<"))
|| (typeName.startsWith("C_WSTRING<"))) {
String strData = data.getFieldValue(nestedFieldName);
result = strData.replaceAll("&", "&").replaceAll("<", "<").replaceAll(">", ">");
} else if (colType.getSubType() instanceof MetaCollection) {
result = "";
if (colType.getSubType().getTypeName().startsWith("C_SEQUENCE<")) {
size = "<size>" + ((MetaCollection) colType.getSubType()).getMaxSize() + "</size>";
}
if (index != -1) {
temp = nestedFieldName.substring(0, index);
for (int i = 0; i < colType.getMaxSize(); i++) {
result += "<element>";
if (size != null) {
result += size;
}
result +=
getSerializedStringCollection(
temp + "[" + i + "]" + nestedFieldName.substring(index),
(MetaCollection) colType.getSubType(),
data);
result += "</element>";
}
} else {
for (int i = 0; i < colType.getMaxSize(); i++) {
result += "<element>";
if (size != null) {
result += size;
}
result +=
getSerializedStringCollection(
nestedFieldName + "[" + i + "]", (MetaCollection) colType.getSubType(), data);
result += "</element>";
}
}
} else {
result = "";
if (index != -1) {
temp = nestedFieldName.substring(0, index);
for (int i = 0; i < colType.getMaxSize(); i++) {
result += "<element>";
result += data.getFieldValue(temp + "[" + i + "]" + nestedFieldName.substring(index));
result += "</element>";
}
} else {
for (int i = 0; i < colType.getMaxSize(); i++) {
result += "<element>";
result += data.getFieldValue(nestedFieldName + "[" + i + "]");
result += "</element>";
}
}
}
return result;
}