/*
* Reads the database model given by the reader.
*
* @param reader The reader that returns the model XML
*
* @return The database model
*/
public static Database read(Reader reader, boolean validate) {
try {
boolean done = false;
Database database = null;
XmlPullParser parser = XmlPullParserFactory.newInstance().newPullParser();
parser.setInput(reader);
int eventType = parser.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT && !done) {
switch (eventType) {
case XmlPullParser.START_DOCUMENT:
database = new Database();
break;
case XmlPullParser.START_TAG:
String name = parser.getName();
if (name.equalsIgnoreCase("database")) {
for (int i = 0; i < parser.getAttributeCount(); i++) {
String attributeName = parser.getAttributeName(i);
String attributeValue = parser.getAttributeValue(i);
if (attributeName.equalsIgnoreCase("name")) {
database.setName(attributeValue);
} else if (attributeName.equalsIgnoreCase("catalog")) {
database.setCatalog(attributeValue);
} else if (attributeName.equalsIgnoreCase("schema")) {
database.setSchema(attributeValue);
}
}
} else if (name.equalsIgnoreCase("table")) {
Table table = nextTable(parser, database.getCatalog(), database.getSchema());
if (table != null) {
database.addTable(table);
}
}
break;
case XmlPullParser.END_TAG:
name = parser.getName();
if (name.equalsIgnoreCase("database")) {
done = true;
}
break;
}
eventType = parser.next();
}
if (validate) {
database.initialize();
}
return database;
} catch (XmlPullParserException e) {
throw new IoException(e);
} catch (IOException e) {
throw new IoException(e);
}
}
public static void write(Database model, Writer output) {
try {
output.write("<?xml version=\"1.0\"?>\n<!DOCTYPE database SYSTEM \"" + DTD_PREFIX + "\">\n");
output.write("<database name=\"" + model.getName() + "\"");
if (model.getCatalog() != null) {
output.write(" catalog=\"" + model.getCatalog() + "\"");
}
if (model.getSchema() != null) {
output.write(" schema=\"" + model.getSchema() + "\"");
}
if (model.getIdMethod() != null) {
output.write(" defaultIdMethod=\"" + model.getIdMethod() + "\"");
}
output.write(">\n");
for (Table table : model.getTables()) {
write(table, output);
}
output.write("</database>\n");
} catch (IOException e) {
throw new IoException(e);
}
}