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Order_Matching_Problem
Commit 3afa32be authored by RAHUL SHARMA's avatar RAHUL SHARMA
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.idea/misc.xml 0 → 100644
View file @ 3afa32be
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.idea/modules.xml 0 → 100644
View file @ 3afa32be
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View file @ 3afa32be
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.idea/workspace.xml 0 → 100644
View file @ 3afa32be
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<window_info id="Commander" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="6" side_tool="false" content_ui="tabs" />
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</layout>
</component>
<component name="TypeScriptGeneratedFilesManager">
<option name="version" value="1" />
</component>
<component name="VcsContentAnnotationSettings">
<option name="myLimit" value="2678400000" />
</component>
<component name="XDebuggerManager">
<breakpoint-manager />
<watches-manager />
</component>
<component name="editorHistoryManager">
<entry file="file://$PROJECT_DIR$/src/Transaction.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="90">
<caret line="6" column="23" lean-forward="true" selection-start-line="6" selection-start-column="23" selection-end-line="6" selection-end-column="23" />
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<entry file="jar:///Library/Java/JavaVirtualMachines/jdk-9.0.1.jdk/Contents/Home/lib/src.zip!/java.base/java/util/ArrayList.java">
<provider selected="true" editor-type-id="text-editor">
<state relative-caret-position="275">
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<folding />
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<provider selected="true" editor-type-id="text-editor">
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</component>
<component name="masterDetails">
<states>
<state key="ArtifactsStructureConfigurable.UI">
<settings>
<artifact-editor />
<splitter-proportions>
<option name="proportions">
<list>
<option value="0.2" />
</list>
</option>
</splitter-proportions>
</settings>
</state>
<state key="FacetStructureConfigurable.UI">
<settings>
<last-edited>No facets are configured</last-edited>
<splitter-proportions>
<option name="proportions">
<list>
<option value="0.2" />
</list>
</option>
</splitter-proportions>
</settings>
</state>
<state key="GlobalLibrariesConfigurable.UI">
<settings>
<splitter-proportions>
<option name="proportions">
<list>
<option value="0.2" />
</list>
</option>
</splitter-proportions>
</settings>
</state>
<state key="JdkListConfigurable.UI">
<settings>
<last-edited>9.0</last-edited>
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<option name="proportions">
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<option value="0.2" />
</list>
</option>
</splitter-proportions>
</settings>
</state>
<state key="ModuleStructureConfigurable.UI">
<settings>
<last-edited>OrderMatching</last-edited>
<splitter-proportions>
<option name="proportions">
<list>
<option value="0.2" />
<option value="0.6" />
</list>
</option>
</splitter-proportions>
</settings>
</state>
<state key="ProjectLibrariesConfigurable.UI">
<settings>
<splitter-proportions>
<option name="proportions">
<list>
<option value="0.2" />
</list>
</option>
</splitter-proportions>
</settings>
</state>
</states>
</component>
</project>
\ No newline at end of file
OrderMatching.iml 0 → 100644
View file @ 3afa32be
<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
<component name="NewModuleRootManager" inherit-compiler-output="true">
<exclude-output />
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
</content>
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>
\ No newline at end of file
src/Matcher.java 0 → 100644
View file @ 3afa32be
public class Matcher {
public enum MatchType {FULL_MATCH, PARTIAL_MATCH, NO_MATCH}
public MatchType match(Transaction t1, Transaction t2) {
if (t1.getCustomerId().equals(t2.getCustomerId())) {
return MatchType.NO_MATCH;
}
if (!t1.getStock().equals(t2.getStock())) {
return MatchType.NO_MATCH;
}
if (!t1.getTypeOfRequest().equals(t2.getTypeOfRequest())) {
return MatchType.NO_MATCH;
}
//current trans is sell
if (t1.getTypeOfRequest().equals("Buy") && t2.getTypeOfRequest().equals("Sell")) {
if (t1.getPricePerUnit() < t2.getPricePerUnit()) {
return MatchType.NO_MATCH;
}
//selling quantity of current transaction exhausts
else{
if(t2.getQuantity() <= t1.getQuantity()){
return MatchType.FULL_MATCH;
}
else{
return MatchType.PARTIAL_MATCH;
}
}
}
// current trans is buy
else{
if(t1.getPricePerUnit() > t2.getPricePerUnit()){
return MatchType.NO_MATCH;
}
// buying quantity of current trans exhausts
else {
if(t2.getQuantity() <= t1.getQuantity()){
return MatchType.FULL_MATCH;
}
else {
return MatchType.PARTIAL_MATCH;
}
}
}
}
}
\ No newline at end of file
src/StockExchange.java 0 → 100644
View file @ 3afa32be
import java.io.*;
import java.util.ArrayList;
import java.util.StringTokenizer;
public class StockExchange {
public void run() throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
Matcher matcher = new Matcher();
boolean shouldContinue = true;
ArrayList<Transaction> transactionList = new ArrayList<>();
while (shouldContinue) {
// get/parse user input
Transaction currentTransaction = new Transaction();
System.out.println("New Transacrion: \"Time Quantity Price Customer_Id Stock Type\" ");
String inputString = reader.readLine();
StringTokenizer stringTokenizer = new StringTokenizer(inputString);
if (stringTokenizer.hasMoreTokens()) {
currentTransaction.setTime(Integer.parseInt(stringTokenizer.nextToken()));
currentTransaction.setQuantity(Integer.parseInt(stringTokenizer.nextToken()));
currentTransaction.setPricePerUnit(Float.parseFloat(stringTokenizer.nextToken()));
currentTransaction.setCustomerId(stringTokenizer.nextToken());
currentTransaction.setStock(stringTokenizer.nextToken());
currentTransaction.setTypeOfRequest(stringTokenizer.nextToken());
}
if (!transactionList.isEmpty()) {
for (int i = 0; i < transactionList.size(); i++) {
Matcher.MatchType matchType = matcher.match(transactionList.get(i), currentTransaction);
if (matchType == Matcher.MatchType.FULL_MATCH) {
// modify ith transaction
transactionList.get(i).setQuantity(transactionList.get(i).getQuantity() - currentTransaction.getQuantity() );
if(transactionList.get(i).getQuantity() == 0){
transactionList.remove(i);
}
System.out.println(currentTransaction.getCustomerId()+" successfully traded "+ transactionList.get(i).getQuantity()+" stocks with "+transactionList.get(i).getCustomerId());
break;
} else if (matchType == Matcher.MatchType.PARTIAL_MATCH) {
// modify current Transaction
// drop i'th transaction
currentTransaction.setQuantity(currentTransaction.getQuantity() - transactionList.get(i).getQuantity());
transactionList.remove(i);
System.out.println(currentTransaction.getCustomerId()+" successfully traded "+ transactionList.get(i).getQuantity()+" stocks with "+transactionList.get(i).getCustomerId());
} else if (matchType == Matcher.MatchType.NO_MATCH) {
// move on
continue;
}
if(i == transactionList.size()-1 && currentTransaction.getQuantity() > 0) {
transactionList.add(currentTransaction);
}
}
} else {
// add this transaction if list is empty
transactionList.add(currentTransaction);
}
System.out.println("Do you want to continue? y|n");
String userResponseString = reader.readLine();
if (userResponseString.equals("n")) {
shouldContinue = false;
}
}
}
}
src/TestStockExchange.java 0 → 100644
View file @ 3afa32be
import java.io.IOException;
public class TestStockExchange {
public static void main(String[] args) throws IOException {
StockExchange stockExchange = new StockExchange();
stockExchange.run();
}
}
src/Transaction.java 0 → 100644
View file @ 3afa32be
import java.util.Comparator;
public class Transaction implements Comparator<Transaction> {
private int time;
private int quantity;
private float pricePerUnit;
private String customerId;
private String stock;
private String typeOfRequest;
private int getTime() {
return time;
}
public void setTime(int time) {
this.time = time;
}
public int getQuantity() {
return quantity;
}
public void setQuantity(int quantity) {
this.quantity = quantity;
}
public float getPricePerUnit() {
return pricePerUnit;
}
public void setPricePerUnit(float pricePerUnit) {
this.pricePerUnit = pricePerUnit;
}
public String getCustomerId() {
return customerId;
}
public void setCustomerId(String customerId) {
this.customerId = customerId;
}
public String getStock() {
return stock;
}
public void setStock(String stock) {
this.stock = stock;
}
public String getTypeOfRequest() {
return typeOfRequest;
}
public void setTypeOfRequest(String typeOfRequest) {
this.typeOfRequest = typeOfRequest;
}
@Override
public String toString() {
return "Transaction{" +
"time=" + time +
", quantity=" + quantity +
", pricePerUnit=" + pricePerUnit +
", customerId='" + customerId + '\'' +
", stock='" + stock + '\'' +
", typeOfRequest='" + typeOfRequest + '\'' +
'}';
}
// add comparator
@Override
public int compare(Transaction o1, Transaction o2) {
if(o1.getTime() == o2.getTime()){
return 0;
}
else if(o1.getTime() > o2.getTime()){
return 1;
}
else {
return -1;
}
}
}
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