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package kr.syeyoung.dungeonsguide.stomp;
import kr.syeyoung.dungeonsguide.features.FeatureRegistry;
import lombok.Data;
import lombok.Singular;
import lombok.experimental.Accessors;
import java.util.*;
@Data
@Accessors(chain = true, fluent = true)
public class StompPayload {
private StompHeader method;
private Map<String, String> headers = new HashMap<String, String>();
private String payload;
public StompPayload header(String key, String value) {
headers.put(key, value);
return this;
}
public String getBuilt() {
StringBuilder sb = new StringBuilder();
sb.append(method.name());
sb.append("\n");
for (Map.Entry<String, String> stringStringEntry : headers.entrySet()) {
sb.append(stringStringEntry.getKey());
sb.append(":");
sb.append(stringStringEntry.getValue());
sb.append("\n");
if (stringStringEntry.getKey().contains(":")) throw new IllegalStateException("Illegal Character : inside headers");
if (stringStringEntry.getValue().contains(":")) throw new IllegalStateException("Illegal Character : inside headers");
}
sb.append("\n");
if (payload != null)
sb.append(payload);
sb.append((char) 0);
System.out.println("Probably sending "+sb.toString());
return sb.toString();
}
public static StompPayload parse(String payload) {
System.out.println("Parsing "+payload);
Scanner scanner = new Scanner(payload);
StompPayload stompPayload = new StompPayload();
stompPayload.method = StompHeader.valueOf(scanner.nextLine());
String line = "";
while (!(line = scanner.nextLine()).isEmpty()) {
int index = line.indexOf(":");
if (index == -1) throw new IllegalArgumentException("No : found in headers section");
String name = line.substring(0, index);
String value;
if (index == line.length() - 1)
value = "";
else
value = line.substring(index+1);
stompPayload.headers.put(name, value);
}
List<String> lines = new ArrayList<String>();
while (scanner.hasNextLine() && !(line = scanner.nextLine()).equals("\0")) {
lines.add(line);
}
stompPayload.payload = String.join("\n", lines);
return stompPayload;
}
}
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