thoerup/genericjavautils/HttpUtil.java

package dk.thoerup.genericjavautils;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;


public class HttpUtil {
        
        static public Map<String,String> decodeUri(String uri) {
                String parts[] = uri.split("\\?");
                return decodeParams( parts[1] );
        }
        
        static public Map<String,String> decodeParams(String str) {
                Map<String,String> res = new HashMap<String,String>();
                
                        
                String parts[] = str.split("&");
                
                for (String part : parts) {
                        String pair[] = part.split("=");
                        String key = pair[0];
                        
                        String val = null;
                        if (pair.length == 2) {
                                try {
                                        val = URLDecoder.decode(pair[1], "UTF-8");
                                } catch (UnsupportedEncodingException e) {
                                        val = pair[1]; // if decode fails try with the raw string
                                }
                                
                        }
                        
                        res.put(key, val);
                }
                
                return res;
        }
        
        static public String getLastPart(String url) {          
                String parts[] = url.split("/");
                String lastPart = parts[ parts.length - 1];
                                
                return lastPart;
        }
        
        static public String encodeParams(Map<String,String> params) {
                StringBuilder sb = new StringBuilder();
                
                boolean isFirst = true;                         
                for (String key :  params.keySet()) {                   
                        if (isFirst) {
                                isFirst = false;
                        } else {
                                sb.append("&");
                        }
                        
                        String val = params.get(key);
                        sb.append(key);
                        sb.append("=");
                        sb.append( encode(val) );
                        
                        
                }
                
                
                return sb.toString();
                
        }
        
        static String encode(String url) {
                if (url == null)
                        return "";
                
                try {
                        return URLEncoder.encode(url, "UTF-8");
                } catch (Exception e) {
                        return url;
                }
        }
        
        public static String getContentString(String  uri, int timeout) throws IOException {
                return getContentString(uri, timeout, "UTF-8");
        }
        
        public static String getContentString(String  uri, int timeout, String encoding) throws IOException {
                byte[] buf = getContent(uri, timeout);
                return new String(buf, encoding);
        }

        public static byte[] getContent(String uri, int timeout) throws IOException {
                URL url = new URL(uri);
                URLConnection connection = url.openConnection();
                
                connection.setConnectTimeout(timeout);
                InputStream is = connection.getInputStream();
                
                return readInputStream(is);
        }
        
        public static byte[] postContent(String uri, String data,  int timeout) throws IOException {
                URL url = new URL(uri);
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                connection.setDoOutput(true);
                connection.setRequestMethod("POST");            
                connection.setConnectTimeout(timeout);
                
                OutputStream os = connection.getOutputStream();
                os.write( data.getBytes() );
                
                InputStream is = connection.getInputStream();
                
                return readInputStream(is);

        }
        
        static byte[] readInputStream(InputStream is) throws IOException{
                byte buffer[] = new byte[1024];
                ByteArrayOutputStream baos = new ByteArrayOutputStream(32768); //start buffer size - instead of default 32bytes
                try {
                        int count;
                        while ( (count = is.read(buffer)) != -1) {
                                baos.write(buffer, 0, count);
                        }
                } finally {
                        try {
                                is.close();
                                baos.close();
                        } catch (Exception e) {} //never mind if close throws an exception
                }
                                
                return baos.toByteArray();              
        }
        
}
1	torben	1349	package dk.thoerup.genericjavautils;
2
3			import java.io.ByteArrayOutputStream;
4			import java.io.IOException;
5			import java.io.InputStream;
6			import java.io.OutputStream;
7	torben	1351	import java.io.UnsupportedEncodingException;
8	torben	1349	import java.net.HttpURLConnection;
9			import java.net.URL;
10			import java.net.URLConnection;
11			import java.net.URLDecoder;
12			import java.net.URLEncoder;
13			import java.util.HashMap;
14			import java.util.Map;
15
16
17			public class HttpUtil {
18
19	torben	1413	static public Map<String,String> decodeUri(String uri) {
20			String parts[] = uri.split("\\?");
21			return decodeParams( parts[1] );
22			}
23
24	torben	1349	static public Map<String,String> decodeParams(String str) {
25			Map<String,String> res = new HashMap<String,String>();
26
27
28			String parts[] = str.split("&");
29
30			for (String part : parts) {
31			String pair[] = part.split("=");
32			String key = pair[0];
33
34			String val = null;
35	torben	1351	if (pair.length == 2) {
36			try {
37			val = URLDecoder.decode(pair[1], "UTF-8");
38			} catch (UnsupportedEncodingException e) {
39			val = pair[1]; // if decode fails try with the raw string
40			}
41
42	torben	1349	}
43
44			res.put(key, val);
45			}
46
47			return res;
48			}
49
50			static public String getLastPart(String url) {
51			String parts[] = url.split("/");
52			String lastPart = parts[ parts.length - 1];
53
54			return lastPart;
55			}
56
57			static public String encodeParams(Map<String,String> params) {
58			StringBuilder sb = new StringBuilder();
59
60			boolean isFirst = true;
61			for (String key : params.keySet()) {
62			if (isFirst) {
63			isFirst = false;
64			} else {
65			sb.append("&");
66			}
67
68			String val = params.get(key);
69			sb.append(key);
70			sb.append("=");
71			sb.append( encode(val) );
72
73
74			}
75
76
77			return sb.toString();
78
79			}
80
81			static String encode(String url) {
82			if (url == null)
83			return "";
84
85			try {
86			return URLEncoder.encode(url, "UTF-8");
87			} catch (Exception e) {
88			return url;
89			}
90			}
91
92	torben	1356	public static String getContentString(String uri, int timeout) throws IOException {
93			return getContentString(uri, timeout, "UTF-8");
94			}
95
96			public static String getContentString(String uri, int timeout, String encoding) throws IOException {
97			byte[] buf = getContent(uri, timeout);
98			return new String(buf, encoding);
99			}
100	torben	1349
101			public static byte[] getContent(String uri, int timeout) throws IOException {
102			URL url = new URL(uri);
103			URLConnection connection = url.openConnection();
104
105			connection.setConnectTimeout(timeout);
106			InputStream is = connection.getInputStream();
107
108			return readInputStream(is);
109			}
110
111			public static byte[] postContent(String uri, String data, int timeout) throws IOException {
112			URL url = new URL(uri);
113			HttpURLConnection connection = (HttpURLConnection) url.openConnection();
114			connection.setDoOutput(true);
115			connection.setRequestMethod("POST");
116			connection.setConnectTimeout(timeout);
117
118			OutputStream os = connection.getOutputStream();
119			os.write( data.getBytes() );
120
121			InputStream is = connection.getInputStream();
122
123			return readInputStream(is);
124
125			}
126
127			static byte[] readInputStream(InputStream is) throws IOException{
128			byte buffer[] = new byte[1024];
129			ByteArrayOutputStream baos = new ByteArrayOutputStream(32768); //start buffer size - instead of default 32bytes
130			try {
131			int count;
132			while ( (count = is.read(buffer)) != -1) {
133			baos.write(buffer, 0, count);
134			}
135			} finally {
136			try {
137			is.close();
138			baos.close();
139			} catch (Exception e) {} //never mind if close throws an exception
140			}
141
142			return baos.toByteArray();
143			}
144
145			}