Alawn/Java-8583-Util
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fix #14 implement parsing guides that extend other guides

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This commit is contained in:
Enrique Zamudio
2013-11-25 19:49:45 -06:00
parent eaab64e73f
commit c9e970904f
1 changed files with 53 additions and 1 deletions
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src/main/java/com/solab/iso8583/parse/ConfigParser.java
+53 -1
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@@ -204,6 +204,11 @@ public class ConfigParser {
+ elem.getAttribute("extends"));
}
T tref = mfact.getMessageTemplate(ref);
if (tref == null) {
throw new IllegalArgumentException("Message template "
+ elem.getAttribute("type") + " extends nonexistent template "
+ elem.getAttribute("extends"));
}
@SuppressWarnings("unchecked")
T m = (T)new IsoMessage();
m.setType(type);
@@ -238,14 +243,23 @@ public class ConfigParser {
protected static <T extends IsoMessage> void parseGuides(
final NodeList nodes, final MessageFactory<T> mfact) throws IOException {
ArrayList<Element> subs = null;
HashMap<Integer,HashMap<Integer,FieldParseInfo>> guides = new HashMap<Integer, HashMap<Integer, FieldParseInfo>>();
for (int i = 0; i < nodes.getLength(); i++) {
Element elem = (Element)nodes.item(i);
int type = parseType(elem.getAttribute("type"));
if (type == -1) {
throw new IOException("Invalid ISO8583 type for parse guide: " + elem.getAttribute("type"));
}
NodeList fields = elem.getElementsByTagName("field");
if (elem.getAttribute("extends") != null && !elem.getAttribute("extends").isEmpty()) {
if (subs == null) {
subs = new ArrayList<Element>(nodes.getLength()-i);
}
subs.add(elem);
continue;
}
HashMap<Integer, FieldParseInfo> parseMap = new HashMap<Integer, FieldParseInfo>();
NodeList fields = elem.getElementsByTagName("field");
for (int j = 0; j < fields.getLength(); j++) {
Element f = (Element)fields.item(j);
int num = Integer.parseInt(f.getAttribute("num"));
@@ -257,6 +271,44 @@ public class ConfigParser {
parseMap.put(num, FieldParseInfo.getInstance(itype, length, mfact.getCharacterEncoding()));
}
mfact.setParseMap(type, parseMap);
guides.put(type, parseMap);
}
if (subs != null) {
for (Element elem : subs) {
int type = parseType(elem.getAttribute("type"));
int ref = parseType(elem.getAttribute("extends"));
if (ref == -1) {
throw new IllegalArgumentException("Message template "
+ elem.getAttribute("type") + " extends invalid template "
+ elem.getAttribute("extends"));
}
HashMap<Integer,FieldParseInfo> parent = guides.get(ref);
if (parent == null) {
throw new IllegalArgumentException("Parsing guide "
+ elem.getAttribute("type") + " extends nonexistent guide "
+ elem.getAttribute("extends"));
}
HashMap<Integer,FieldParseInfo> child = new HashMap<Integer, FieldParseInfo>();
child.putAll(parent);
NodeList fields = elem.getElementsByTagName("field");
for (int j = 0; j < fields.getLength(); j++) {
Element f = (Element)fields.item(j);
int num = Integer.parseInt(f.getAttribute("num"));
String typedef = f.getAttribute("type");
if ("exclude".equals(typedef)) {
child.remove(num);
} else {
IsoType itype = IsoType.valueOf(typedef);
int length = 0;
if (f.getAttribute("length").length() > 0) {
length = Integer.parseInt(f.getAttribute("length"));
}
child.put(num, FieldParseInfo.getInstance(itype, length,
mfact.getCharacterEncoding()));
}
}
mfact.setParseMap(type, child);
}
}
}