private void handleCustomCommand(String customCommand, QueueingConsumer.Delivery task)
throws Exception {
if (logger.isTraceEnabled()) {
logger.trace("executing custom command: [{}]", customCommand);
}
if (customCommand.equalsIgnoreCase("mapping")) {
CommandParser parser = null;
try {
parser = new CommandParser(task.getBody());
PutMappingResponse response =
client
.admin()
.indices()
.preparePutMapping(parser.getIndex())
.setType(parser.getType())
.setSource(parser.content)
.execute()
.actionGet();
} catch (IndexMissingException im) {
// if the index has not been created yet, we can should
// it with this mapping
logger.trace("index {} is missing, creating with mappin", parser.getIndex());
CreateIndexResponse res =
client
.admin()
.indices()
.prepareCreate(parser.getIndex())
.addMapping(parser.getType(), parser.content)
.execute()
.actionGet();
}
} else if (customCommand.equalsIgnoreCase("deleteByQuery")) {
CommandParser parser = null;
parser = new CommandParser(task.getBody());
if (null != parser.getIndex()) {
DeleteByQueryRequest dreq = new DeleteByQueryRequest(parser.getIndex());
if (null != parser.getType()) dreq.types(parser.getType());
if (null != parser.queryString)
dreq.query(new QueryStringQueryBuilder(parser.queryString));
else dreq.query(parser.content);
DeleteByQueryResponse response = client.deleteByQuery(dreq).actionGet();
}
} else {
logger.warn(
"unknown custom command - {} [{}]", customCommand, task.getEnvelope().getDeliveryTag());
}
}
public void run() {
CommandParser parser = new CommandParser();
System.out.println("The mini-DB of NBA coaches and teams");
System.out.println("Please enter a command. Enter 'help' for a list of commands.");
System.out.println();
System.out.print("> ");
Command cmd = null;
while ((cmd = parser.fetchCommand()) != null) {
// System.out.println(cmd);
boolean result = false;
if (cmd.getCommand().equals("help")) {
result = doHelp();
/* You need to implement all the following commands */
} else if (cmd.getCommand().equals("add_coach")) {
try {
String params[] = cmd.getParameters(), submitStr;
FileWriter fw = new FileWriter("coaches_season.txt", true);
fw.write("\n");
submitStr =
params[0] + "," + params[1] + ",," + params[2] + "," + params[3] + "," + params[4]
+ "," + params[5];
submitStr += "," + params[6] + "," + params[7] + "," + params[8];
fw.write(submitStr);
fw.close();
} catch (Exception ex) {
System.out.println(
"A problem has occurred. Refer to the next line about the exception that was thrown.");
System.out.println(ex.toString());
}
} else if (cmd.getCommand().equals("add_team")) {
try {
String params[] = cmd.getParameters(), submitStr = params[0];
FileWriter fw =
new FileWriter("teams.txt", true); // true sets it to append instead of overwrite
fw.write("\n");
for (int i = 1; i < params.length; i++) {
submitStr += "," + params[i];
}
fw.write(submitStr);
fw.close();
} catch (Exception ex) {
System.out.println(
"A problem has occurred. Refer to the next line about the exception that was thrown.");
System.out.println(ex.toString());
}
} else if (cmd.getCommand().equals("print_coaches")) {
try {
FileInputStream fstream = new FileInputStream("coaches_season.txt");
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine, pieces[];
strLine =
br.readLine(); // Reads in and ignores the first line which defines the structure of
// columns
while ((strLine = br.readLine()) != null) {
pieces = strLine.split(",");
if (pieces.length == 10) {
// Print the content on the console
System.out.print(
pieces[0] + " " + pieces[1] + " " + pieces[3] + " " + pieces[4] + " " + pieces[5]
+ " " + pieces[6] + " ");
System.out.println(pieces[7] + " " + pieces[8] + " " + pieces[9]);
}
}
in.close();
} catch (Exception ex) {
System.out.println(
"A problem has occurred. Refer to the next line about the exception that was thrown.");
System.out.println(ex.toString());
}
} else if (cmd.getCommand().equals("print_teams")) {
try {
FileInputStream fstream = new FileInputStream("teams.txt");
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine, pieces[];
strLine =
br.readLine(); // Reads in and ignores the first line which defines the structure of
// columns
while ((strLine = br.readLine()) != null) {
pieces = strLine.split(",");
if (pieces.length == 4) {
System.out.println(pieces[0] + " " + pieces[1] + " " + pieces[2] + " " + pieces[3]);
}
}
br.close();
} catch (Exception ex) {
System.out.println(
"A problem has occurred. Refer to the next line about the exception that was thrown.");
System.out.println(ex.toString());
}
} else if (cmd.getCommand().equals("coaches_by_name")) {
try {
FileInputStream fstream = new FileInputStream("coaches_season.txt");
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine, pieces[];
String parameters[] = cmd.getParameters();
while ((strLine = br.readLine()) != null) {
pieces = strLine.split(",");
if (pieces.length == 10)
if (pieces[4].trim().equals(parameters[0].replace("+", " ")))
System.out.println(
pieces[0] + " " + pieces[1] + " " + pieces[3] + " " + pieces[4] + " "
+ pieces[5] + " " + pieces[6] + " " + pieces[7] + " " + pieces[8] + " "
+ pieces[9]);
}
br.close();
} catch (Exception ex) {
System.out.println(
"A problem has occurred. Refer to the next line about the exception that was thrown.");
System.out.println(ex.toString());
}
} else if (cmd.getCommand().equals("teams_by_city")) {
try {
FileInputStream fstream = new FileInputStream("teams.txt");
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine, pieces[];
String parameters[] = cmd.getParameters();
while ((strLine = br.readLine()) != null) {
pieces = strLine.split(",");
if (pieces.length == 4 && pieces[1].trim().equals(parameters[0])) {
System.out.println(strLine);
}
}
br.close();
} catch (Exception ex) {
System.out.println(
"A problem has occurred. Refer to the next line about the exception that was thrown.");
System.out.println(ex.toString());
}
} else if (cmd.getCommand().equals("load_coaches")) {
try {
String params[] = cmd.getParameters(), strLine;
FileInputStream fstream = new FileInputStream(params[0]);
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
FileWriter fw = new FileWriter("coaches_season.txt", true);
strLine = br.readLine(); // reads in and ignores first line which is the schema
while ((strLine = br.readLine()) != null) {
fw.write("\n" + strLine);
}
fw.close();
} catch (Exception ex) {
System.out.println(
"A problem has occurred. Refer to the next line about the exception that was thrown.");
System.out.println(ex.toString());
}
} else if (cmd.getCommand().equals("load_teams")) {
try {
String params[] = cmd.getParameters(), strLine;
FileInputStream fstream = new FileInputStream(params[0]);
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
FileWriter fw = new FileWriter("teams.txt", true);
strLine = br.readLine(); // reads in and ignores first line which is the schema
while ((strLine = br.readLine()) != null) {
fw.write("\n" + strLine);
}
fw.close();
} catch (Exception ex) {
System.out.println(
"A problem has occurred. Refer to the next line about the exception that was thrown.");
System.out.println(ex.toString());
}
} else if (cmd.getCommand().equals("best_coach")) {
try {
FileInputStream fstream = new FileInputStream("coaches_season.txt");
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine, pieces[];
String parameters[] = cmd.getParameters(), tempLine = "";
int netWins = 0;
while ((strLine = br.readLine()) != null) {
pieces = strLine.split(",");
if (pieces.length == 10 && pieces[1].trim().equals(parameters[0])) {
if (netWins
< Integer.parseInt(pieces[5].trim()) - Integer.parseInt(pieces[6].trim())) {
netWins = Integer.parseInt(pieces[5].trim()) - Integer.parseInt(pieces[6].trim());
tempLine = pieces[3].trim() + " " + pieces[4].trim();
}
}
}
System.out.println(tempLine);
br.close();
} catch (Exception ex) {
System.out.println(
"A problem has occurred. Refer to the next line about the exception that was thrown.");
System.out.println(ex.toString());
}
} else if (cmd.getCommand().equals("search_coaches")) {
try {
String[] params = cmd.getParameters();
FileInputStream fstream = new FileInputStream("coaches_season.txt");
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine, pieces[];
while ((strLine = br.readLine()) != null) {
if (!strLine.equals("")) {
boolean inRow = true;
pieces = strLine.split(",");
for (int i = 0; i < params.length; i++) {
if (!pieces[findIndex(params[i].split("=")[0].trim())]
.trim()
.equals(params[i].split("=")[1].trim())) {
inRow = false;
}
}
if (inRow) {
System.out.println(strLine.replace(",", ""));
}
}
}
br.close();
} catch (ArrayIndexOutOfBoundsException ex) {
System.out.println("You have entered an invalid column name.");
} catch (Exception ex) {
System.out.println(
"A problem has occurred. Refer to the next line about the exception that was thrown.");
System.out.println(ex.toString());
}
} else if (cmd.getCommand().equals("exit")) {
System.out.println("Leaving the database, goodbye!");
break;
} else if (cmd.getCommand().equals("")) {
} else {
System.out.println("Invalid Command, try again!");
}
if (result) {
// ...
}
System.out.print("> ");
}
}