circuitbreaker/invocations/UrlInvocation.java

package dk.thoerup.circuitbreaker.invocations;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

import dk.thoerup.circuitbreaker.CircuitInvocation;

public class UrlInvocation implements CircuitInvocation<byte[]> {

        private String urlStr;
        private int timeout;
        
        public UrlInvocation(String url) {
                this(url,1000);
        }
        
        public UrlInvocation(String url, int timeout) {
                this.urlStr = url;
                this.timeout = timeout;
        }       
        
        public byte[] proceed() throws Exception {
                URLConnection con = new URL(urlStr).openConnection();
                con.setConnectTimeout( timeout );
                InputStream is = con.getInputStream();
                ByteArrayOutputStream os = new ByteArrayOutputStream();
                byte[] message = new byte[8192];
                int readBytes = 0;;
                while ((readBytes = is.read(message)) != -1) {
                        os.write(message, 0, readBytes);
                }
                is.close();
                os.close();
                return os.toByteArray();
        }

}
1	package dk.thoerup.circuitbreaker.invocations;
2
3	import java.io.ByteArrayOutputStream;
4	import java.io.InputStream;
5	import java.net.URL;
6	import java.net.URLConnection;
7
8	import dk.thoerup.circuitbreaker.CircuitInvocation;
9
10	public class UrlInvocation implements CircuitInvocation<byte[]> {
11
12	private String urlStr;
13	private int timeout;
14
15	public UrlInvocation(String url) {
16	this(url,1000);
17	}
18
19	public UrlInvocation(String url, int timeout) {
20	this.urlStr = url;
21	this.timeout = timeout;
22	}
23
24	public byte[] proceed() throws Exception {
25	URLConnection con = new URL(urlStr).openConnection();
26	con.setConnectTimeout( timeout );
27	InputStream is = con.getInputStream();
28	ByteArrayOutputStream os = new ByteArrayOutputStream();
29	byte[] message = new byte[8192];
30	int readBytes = 0;;
31	while ((readBytes = is.read(message)) != -1) {
32	os.write(message, 0, readBytes);
33	}
34	is.close();
35	os.close();
36	return os.toByteArray();
37	}
38
39	}