public void load(String queryFile, String modules, String tables)
throws SQLException, IOException, InterruptedException, ExecutionException {
Properties properties = new Properties();
properties.load(new FileInputStream(queryFile));
Collection<String> keys = properties.stringPropertyNames();
// Filtering by validating if property starts with any of the module names
if (!Config.ALL.equalsIgnoreCase(modules)) {
keys =
Util.filter(
keys, "^(" + modules.replaceAll(Config.COMMA_SEPARATOR, Config.MODULE_SUFFIX) + ")");
}
// Filtering by table names
if (!Config.ALL.equalsIgnoreCase(tables)) {
keys =
Util.filter(
keys, "(" + tables.replaceAll(Config.COMMA_SEPARATOR, Config.TABLE_SUFFIX) + ")$");
}
logger.info("The final modules and tables that are being considered" + keys.toString());
ExecutorService executor = Executors.newFixedThreadPool(keys.size() * 3);
CompletionService completion = new ExecutorCompletionService(executor);
for (String key : keys) {
String query = properties.getProperty(key);
key =
(key.contains(Config.DOT_SEPARATOR)
? key.substring(key.indexOf(Config.DOT_SEPARATOR) + 1)
: key);
while (query.contains("[:")) {
String param = query.substring(query.indexOf("[:") + 2, query.indexOf("]"));
query = query.replaceFirst("\\[\\:" + param + "\\]", properties.getProperty(param));
}
int pages = 1;
String base = "";
if (config.srisvoltdb) {
if (config.isPaginated) {
try {
// find count
String countquery = query;
if (countquery.contains("<") || countquery.contains(">")) {
int bracketOpen = countquery.indexOf("<");
int bracketClose = countquery.indexOf(">");
String orderCol = countquery.substring(bracketOpen + 1, bracketClose);
countquery = countquery.replace("<" + orderCol + ">", "");
}
VoltTable vcount = client.callProcedure("@AdHoc", countquery).getResults()[0];
int count = vcount.getRowCount();
pages = (int) Math.ceil((double) count / config.pageSize);
} catch (Exception e) {
System.out.println("Count formation failure!");
}
}
// set up data in order
} else {
// find count
String countquery = query.replace("*", "COUNT(*)");
Connection conn =
DriverManager.getConnection(config.jdbcurl, config.jdbcuser, config.jdbcpassword);
base = conn.getMetaData().getDatabaseProductName().toLowerCase();
System.out.println("BASE: " + base);
Statement jdbcStmt =
conn.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
if (countquery.contains("<") || countquery.contains(">")) {
int bracketOpen = countquery.indexOf("<");
int bracketClose = countquery.indexOf(">");
String orderCol = countquery.substring(bracketOpen + 1, bracketClose);
countquery = countquery.replace("<" + orderCol + ">", "");
}
ResultSet rcount = jdbcStmt.executeQuery(countquery);
rcount.next();
int count = Integer.parseInt(rcount.getArray(1).toString());
// THIS IF NEEDS A WAY TO DETERMINE IF POSTGRES
if (base.contains("postgres") && config.isPaginated) {
pages = (int) Math.ceil((double) count / config.pageSize);
}
// set up data in order
}
// establish new SourceReaders and DestinationWriters for pages
SourceReader[] sr = new SourceReader[pages];
DestinationWriter[] cr = new DestinationWriter[pages];
for (int i = 0; i < pages; i++) {
sr[i] = new SourceReader();
cr[i] = new DestinationWriter();
}
Controller processor =
new Controller<ArrayList<Object[]>>(
client, sr, cr, query, key.toUpperCase() + ".insert", config, pages, base);
completion.submit(processor);
}
// wait for all tasks to complete.
for (int i = 0; i < keys.size(); ++i) {
logger.info(
"****************"
+ completion.take().get()
+ " completed *****************"); // will block until the next sub task has
// completed.
}
executor.shutdown();
}
