net/oni2/ProxySettings.java

package net.oni2;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.Serializable;
import java.net.InetSocketAddress;
import java.net.MalformedURLException;
import java.net.Proxy;
import java.net.Proxy.Type;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.net.URLConnection;

import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.StaxDriver;

/**
 * @author Christian Illy
 */
public class ProxySettings implements Serializable {
        private static final long serialVersionUID = 7764207071836441954L;

        private static ProxySettings instance = new ProxySettings();

        private boolean useProxy = false;
        private String hostOrIp = null;
        private int port = -1;

        private transient boolean validated = false;
        private transient boolean validatedOk = false;

        /**
         * Get the proxy for URL connections. Validates connection first if not
         * validated yet
         * 
         * @return Proxy
         */
        public Proxy getProxy() {
                if (!useProxy)
                        return Proxy.NO_PROXY;
                if (!validated)
                        validate();
                if (!validatedOk)
                        return Proxy.NO_PROXY;

                return new Proxy(Type.HTTP, new InetSocketAddress(hostOrIp, port));
        }

        /**
         * Check if a connection to the given proxy can be established
         * 
         * @return Data entered and connection Ok?
         */
        public boolean validate() {
                if (validated) {
                        return validatedOk;
                } else {
                        validated = true;
                        if (isValid()) {
                                try {
                                        URLConnection con = new URL(String.format("http://%s:%d",
                                                        hostOrIp, port)).openConnection();
                                        con.setConnectTimeout(1000);
                                        con.connect();
                                        validatedOk = true;
                                        return true;
                                } catch (MalformedURLException e) {
                                        e.printStackTrace();
                                } catch (SocketTimeoutException e) {
                                        e.printStackTrace();
                                } catch (IOException e) {
                                        e.printStackTrace();
                                }
                        }
                        validatedOk = false;
                        return false;
                }
        }

        /**
         * @return Is data for both host and port entered?
         */
        public boolean isValid() {
                return (hostOrIp != null) && (port > 0);
        }

        /**
         * @return Should a proxy be used for connections?
         */
        public boolean isUseProxy() {
                return useProxy;
        }

        /**
         * @param use
         *            Should a proxy be used for connections?
         */
        public void setUseProxy(boolean use) {
                this.useProxy = use;
        }

        /**
         * @return Hostname or IP of host to use as proxy
         */
        public String getHostOrIp() {
                return hostOrIp;
        }

        /**
         * @param hoi
         *            Hostname or IP of host to use as proxy
         */
        public void setHostOrIp(String hoi) {
                validated = false;
                this.hostOrIp = hoi;
        }

        /**
         * @return Port number proxy is listening on
         */
        public int getPort() {
                return port;
        }

        /**
         * @param port
         *            Port number proxy is listening on
         */
        public void setPort(int port) {
                validated = false;
                this.port = port;
        }

        /**
         * Get the singleton instance
         * 
         * @return Singleton instance
         */
        public static ProxySettings getInstance() {
                return instance;
        }

        private static XStream getXStream() {
                XStream xs = new XStream(new StaxDriver());
                xs.alias("Proxy", ProxySettings.class);
                return xs;
        }

        /**
         * Serializes the settings to disk
         * 
         * @param settingsFile
         *            File to write to
         */
        public void serializeToFile(File settingsFile) {
                try {
                        FileOutputStream fos = new FileOutputStream(settingsFile);
                        XStream xs = getXStream();
                        xs.toXML(this, fos);
                        fos.close();
                } catch (FileNotFoundException e) {
                        e.printStackTrace();
                } catch (IOException e) {
                        e.printStackTrace();
                }
        }

        /**
         * Deserializes the settings from disk
         * 
         * @param settingsFile
         *            File to read from
         */
        public static void deserializeFromFile(File settingsFile) {
                try {
                        FileInputStream fis = new FileInputStream(settingsFile);
                        XStream xs = getXStream();
                        Object obj = xs.fromXML(fis);
                        if (obj instanceof ProxySettings)
                                instance = (ProxySettings) obj;
                        fis.close();
                } catch (FileNotFoundException e) {
                } catch (IOException e) {
                }
        }

}
Revision:	852
Committed:	Fri May 3 12:25:21 2013 UTC (12 years, 6 months ago) by alloc
Content type:	text/x-java
File size:	4273 byte(s)
Log Message:	AEI2.08, AEIUpdater: - Fixes #3
#	Content
1	package net.oni2;
2
3	import java.io.File;
4	import java.io.FileInputStream;
5	import java.io.FileNotFoundException;
6	import java.io.FileOutputStream;
7	import java.io.IOException;
8	import java.io.Serializable;
9	import java.net.InetSocketAddress;
10	import java.net.MalformedURLException;
11	import java.net.Proxy;
12	import java.net.Proxy.Type;
13	import java.net.SocketTimeoutException;
14	import java.net.URL;
15	import java.net.URLConnection;
16
17	import com.thoughtworks.xstream.XStream;
18	import com.thoughtworks.xstream.io.xml.StaxDriver;
19
20	/**
21	* @author Christian Illy
22	*/
23	public class ProxySettings implements Serializable {
24	private static final long serialVersionUID = 7764207071836441954L;
25
26	private static ProxySettings instance = new ProxySettings();
27
28	private boolean useProxy = false;
29	private String hostOrIp = null;
30	private int port = -1;
31
32	private transient boolean validated = false;
33	private transient boolean validatedOk = false;
34
35	/**
36	* Get the proxy for URL connections. Validates connection first if not
37	* validated yet
38	*
39	* @return Proxy
40	*/
41	public Proxy getProxy() {
42	if (!useProxy)
43	return Proxy.NO_PROXY;
44	if (!validated)
45	validate();
46	if (!validatedOk)
47	return Proxy.NO_PROXY;
48
49	return new Proxy(Type.HTTP, new InetSocketAddress(hostOrIp, port));
50	}
51
52	/**
53	* Check if a connection to the given proxy can be established
54	*
55	* @return Data entered and connection Ok?
56	*/
57	public boolean validate() {
58	if (validated) {
59	return validatedOk;
60	} else {
61	validated = true;
62	if (isValid()) {
63	try {
64	URLConnection con = new URL(String.format("http://%s:%d",
65	hostOrIp, port)).openConnection();
66	con.setConnectTimeout(1000);
67	con.connect();
68	validatedOk = true;
69	return true;
70	} catch (MalformedURLException e) {
71	e.printStackTrace();
72	} catch (SocketTimeoutException e) {
73	e.printStackTrace();
74	} catch (IOException e) {
75	e.printStackTrace();
76	}
77	}
78	validatedOk = false;
79	return false;
80	}
81	}
82
83	/**
84	* @return Is data for both host and port entered?
85	*/
86	public boolean isValid() {
87	return (hostOrIp != null) && (port > 0);
88	}
89
90	/**
91	* @return Should a proxy be used for connections?
92	*/
93	public boolean isUseProxy() {
94	return useProxy;
95	}
96
97	/**
98	* @param use
99	* Should a proxy be used for connections?
100	*/
101	public void setUseProxy(boolean use) {
102	this.useProxy = use;
103	}
104
105	/**
106	* @return Hostname or IP of host to use as proxy
107	*/
108	public String getHostOrIp() {
109	return hostOrIp;
110	}
111
112	/**
113	* @param hoi
114	* Hostname or IP of host to use as proxy
115	*/
116	public void setHostOrIp(String hoi) {
117	validated = false;
118	this.hostOrIp = hoi;
119	}
120
121	/**
122	* @return Port number proxy is listening on
123	*/
124	public int getPort() {
125	return port;
126	}
127
128	/**
129	* @param port
130	* Port number proxy is listening on
131	*/
132	public void setPort(int port) {
133	validated = false;
134	this.port = port;
135	}
136
137	/**
138	* Get the singleton instance
139	*
140	* @return Singleton instance
141	*/
142	public static ProxySettings getInstance() {
143	return instance;
144	}
145
146	private static XStream getXStream() {
147	XStream xs = new XStream(new StaxDriver());
148	xs.alias("Proxy", ProxySettings.class);
149	return xs;
150	}
151
152	/**
153	* Serializes the settings to disk
154	*
155	* @param settingsFile
156	* File to write to
157	*/
158	public void serializeToFile(File settingsFile) {
159	try {
160	FileOutputStream fos = new FileOutputStream(settingsFile);
161	XStream xs = getXStream();
162	xs.toXML(this, fos);
163	fos.close();
164	} catch (FileNotFoundException e) {
165	e.printStackTrace();
166	} catch (IOException e) {
167	e.printStackTrace();
168	}
169	}
170
171	/**
172	* Deserializes the settings from disk
173	*
174	* @param settingsFile
175	* File to read from
176	*/
177	public static void deserializeFromFile(File settingsFile) {
178	try {
179	FileInputStream fis = new FileInputStream(settingsFile);
180	XStream xs = getXStream();
181	Object obj = xs.fromXML(fis);
182	if (obj instanceof ProxySettings)
183	instance = (ProxySettings) obj;
184	fis.close();
185	} catch (FileNotFoundException e) {
186	} catch (IOException e) {
187	}
188	}
189
190	}