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concoredocker.py ported to concoredocker.java #5

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concoredocker.py ported to concoredocker.java #5

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206 changes: 206 additions & 0 deletions concoredocker.java
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Original file line number Diff line number Diff line change
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// concoredocker.java -- this java file will be the equivalent of concoredocker.py
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

public class concoredocker {
static String s = "";
static String olds = "";
static String inpath = "/in"; // must be absolute path for local
static String outpath = "/out";
static int maxtime;

public static int delay = 1; // second
public static int retrycount = 0;
public static double simtime;
public static Map<String, Integer> iport = new HashMap<>();
public static Map<String, Integer> oport = new HashMap<>();

public concoredocker(){
iport = mapParser("concore.iport");
oport = mapParser("concore.oport");

}
public static void main(String[] args) {
default_maxtime(100);
}

private static Map<String, Integer> mapParser(String filename) {
Map<String, Integer> config = new HashMap<>();
StringBuilder portstr = new StringBuilder(); // StringBuilder to store file data
try (BufferedReader reader = new BufferedReader(new FileReader(filename))) {
int ch;
while ((ch = reader.read()) != -1) {
portstr.append((char) ch); // Add character to string builder
}
} catch (IOException e) {
e.printStackTrace();
}

portstr.setCharAt(portstr.length() - 1, ','); // Replace last character with comma
portstr.append("}");
int i = 0;
String portname = "";
String portnum = "";

while(portstr.charAt(i) != '}'){
if(portstr.charAt(i) == '\''){
i++;
while(portstr.charAt(i) != '\''){
portname += portstr.charAt(i);
i++;
}
config.put(portname,0);
}
if(portstr.charAt(i) == ':'){
i++;
while(portstr.charAt(i) != ','){
portnum += portstr.charAt(i);
i++;
}
config.put(portname,Integer.parseInt(portnum));
portname = "";
portnum = "";
}
i++;
}
return config;
}

//function to compare and determine whether file content has been changed
public static boolean unchanged() {
if (olds.equals(s)) {
s = "";
return true;
} else {
olds = s;
return false;
}
}

private static ArrayList<Double> parser(String f){
ArrayList<Double> temp = new ArrayList<>();
String value = "";
// Changing last bracket to comma to use comma as a delimiter
f = f.substring(0, f.length() - 1) + ",";
for(int i=1;i<f.length();i++){
if(f.charAt(i) != ','){
value += f.charAt(i);
}
else{
if(value.length() != 0)
temp.add(Double.parseDouble(value));

// reset value
value = "";
}
}
return temp;
}

//accepts the file name as string and returns a string of file content
public static ArrayList<Double> read(int port, String name, String initstr) {
String ins = "";
try {Thread.sleep(1000 * delay);}
catch(InterruptedException e){
e.printStackTrace();
}
try (BufferedReader reader = new BufferedReader(new FileReader(inpath + String.valueOf(port) + "/" + name))) {
int ch;
while ((ch = reader.read()) != -1) {
ins += ((char) ch); // Add character to string
}
}catch(IOException e){
ins = initstr;
e.printStackTrace();
}


while(ins.length() == 0){
try {Thread.sleep(1000 * delay);}
catch(InterruptedException e){
e.printStackTrace();
}
try (BufferedReader reader = new BufferedReader(new FileReader(inpath + String.valueOf(port) + "/" + name))) {
int ch;
while ((ch = reader.read()) != -1) {
ins += ((char) ch); // Add character to string
}
retrycount++;
} catch (IOException e) {
//observed retry count in java from various tests is not calculated yet
retrycount++;
System.out.println("Read error");
e.printStackTrace();
}
}
s += ins;

ArrayList<Double> inval = new ArrayList<>();
inval = parser(ins);
simtime = simtime > inval.get(0) ? simtime : inval.get(0);

// returning a string with data exluding simtime
inval.remove(0);
return inval;
}

//write method, accepts a vector double and writes it to the file
public static void write(int port, String name, ArrayList<Double> val, int delta) {
try (BufferedWriter writer = new BufferedWriter (new FileWriter(outpath + String.valueOf(port) + "/" + name))){
val.add(0,simtime+delta);
writer.write('[');
for(int i=0;i<val.size()-1;i++){
writer.write(val.get(i).toString());
writer.write(',');
}
writer.write(val.size()-1);
writer.write(']');
} catch (IOException e) {
System.out.println("skipping +" + outpath + port + " /" + name);
e.printStackTrace();
}
}

//write method, accepts a string and writes it to the file
public static void write(int port, String name, String val, int delta) {
try {Thread.sleep(1000 * delay);}
catch(InterruptedException e){
e.printStackTrace();
}
try (BufferedWriter writer = new BufferedWriter (new FileWriter(outpath + String.valueOf(port) + "/" + name))){
writer.write(val);
} catch (IOException e) {
System.out.println("skipping +" + outpath + port + " /" + name);
e.printStackTrace();
}
}

public static void default_maxtime(int defaultValue) {
try(BufferedReader reader = new BufferedReader(new FileReader(inpath+"1/concore.maxtime"))){
String line = reader.readLine();
maxtime = Integer.parseInt(line);

} catch (IOException e) {
maxtime = defaultValue;
}
}

//Initializing
public static ArrayList<Double> initval(String simtimeVal) {
//parsing
ArrayList<Double> val = new ArrayList<>();

//determining simtime
simtime = val.get(0);

//returning the rest of the values(except simtime) in val
val.remove(0);
return val;
}
}