circuitbreaker/web/ListCircuitBreakers.java

package dk.thoerup.circuitbreaker.web;


import java.net.URLEncoder;
import javax.servlet.http.*;

import dk.thoerup.circuitbreaker.CircuitBreaker;
import dk.thoerup.circuitbreaker.CircuitBreakerManager;

public class ListCircuitBreakers implements Command {
        public String execute(HttpServletRequest req, HttpServletResponse resp) {
                
                
                StringBuilder sb = new StringBuilder();
                CircuitBreakerManager manager = CircuitBreakerManager.getManager();
                
                sb.append("<html><head><title>CircuitBreakers</title></head>\n\n<body>");
                sb.append("<h2>CircuitBreakers:</h2>\n\n");
                sb.append("<table border=\"1\"><tr><th>Name</th><th>Status</th></tr>\n");
                
                for (String breakerName : manager.getCircuitBreakerNames()) {
                        CircuitBreaker<?> breaker = manager.getCircuitBreaker(breakerName);
                        String color = "white";
                        
                        if (breaker.isOpen() ) {
                                color = "red";
                        } else if (breaker.isClosed() ) {
                                color = "green";
                        } else { 
                                color ="yellow";
                        }
                        
                        String encodedName = breakerName;
                        try {
                                encodedName = URLEncoder.encode(breakerName,"UTF-8" );
                        } catch (Exception e) {
                                //if Encoding fails we just use normal name and cross our fingers
                        }
                        
                        sb.append("<tr>");
                        sb.append("<td><a href=\"").append( req.getRequestURI() ).append("?command=view&breaker=");
                        sb.append( encodedName ).append("\">").append(breakerName).append("</a></td>\n");
                        sb.append("<td style=\"background-color: ").append(color).append("\">&nbsp;</td>\n");
                        sb.append("</tr>\n\n");
                }
                
                sb.append("</table></body></html>\n");
                
                return sb.toString();
        }
}
1	package dk.thoerup.circuitbreaker.web;
2
3
4	import java.net.URLEncoder;
5	import javax.servlet.http.*;
6
7	import dk.thoerup.circuitbreaker.CircuitBreaker;
8	import dk.thoerup.circuitbreaker.CircuitBreakerManager;
9
10	public class ListCircuitBreakers implements Command {
11	public String execute(HttpServletRequest req, HttpServletResponse resp) {
12
13
14	StringBuilder sb = new StringBuilder();
15	CircuitBreakerManager manager = CircuitBreakerManager.getManager();
16
17	sb.append("<html><head><title>CircuitBreakers</title></head>\n\n<body>");
18	sb.append("<h2>CircuitBreakers:</h2>\n\n");
19	sb.append("<table border=\"1\"><tr><th>Name</th><th>Status</th></tr>\n");
20
21	for (String breakerName : manager.getCircuitBreakerNames()) {
22	CircuitBreaker<?> breaker = manager.getCircuitBreaker(breakerName);
23	String color = "white";
24
25	if (breaker.isOpen() ) {
26	color = "red";
27	} else if (breaker.isClosed() ) {
28	color = "green";
29	} else {
30	color ="yellow";
31	}
32
33	String encodedName = breakerName;
34	try {
35	encodedName = URLEncoder.encode(breakerName,"UTF-8" );
36	} catch (Exception e) {
37	//if Encoding fails we just use normal name and cross our fingers
38	}
39
40	sb.append("<tr>");
41	sb.append("<td><a href=\"").append( req.getRequestURI() ).append("?command=view&breaker=");
42	sb.append( encodedName ).append("\">").append(breakerName).append("</a></td>\n");
43	sb.append("<td style=\"background-color: ").append(color).append("\"> </td>\n");
44	sb.append("</tr>\n\n");
45	}
46
47	sb.append("</table></body></html>\n");
48
49	return sb.toString();
50	}
51	}