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16 package org.apache.roller.util;
17
18 import java.io.BufferedReader  ;
19 import java.io.IOException ;
20 import java.io.InputStream ;
21 import java.io.InputStreamReader ;
22 import java.net.URL ;
23 import java.net.URLConnection ;
24 import java.util.ArrayList ;
25 import java.util.Collection ;
26 import java.util.HashMap ;
27 import java.util.Iterator ;
28 import java.util.Map ;
29 import org.jdom.Document;
30 import org.jdom.Element;
31 import org.jdom.input.SAXBuilder;
32 import org.jdom.xpath.XPath;
33 import org.xml.sax.EntityResolver ;
34 import org.xml.sax.InputSource ;
35 import org.xml.sax.SAXException ;
36
37
38 public class Technorati {
39 private String mKey = null;
40
41 public Technorati(String key) {
42 mKey = key;
43 }
44
45 public Technorati(String key, String proxy, int proxyPort) {
46 this(key);
47 System.setProperty("proxySet", "true");
48 System.setProperty("http.proxyHost", proxy);
49 System.setProperty("http.proxyPort", Integer.toString(proxyPort));
50 }
51
52
53 public Technorati() throws IOException {
54 InputStream is = getClass().getResourceAsStream("/technorati.license");
55 BufferedReader br = new BufferedReader (new InputStreamReader (is));
56 mKey = br.readLine();
57 }
58
59 public Technorati(String proxy, int proxyPort) throws Exception {
60 this();
61 System.setProperty("proxySet", "true");
62 System.setProperty("http.proxyHost", proxy);
63 System.setProperty("http.proxyPort", Integer.toString(proxyPort));
64 }
65
66 public Result getLinkCosmos(String url) throws Exception {
67 return new Result("http://api.technorati.com/cosmos",url,"links");
68 }
69
70 public Result getWeblogCosmos(String url) throws Exception {
71 return new Result("http://api.technorati.com/cosmos",url,"weblog");
72 }
73
74 public Result getBloginfo(String url) throws Exception {
75 return new Result("http://api.technorati.com/bloginfo",url,null);
76 }
77
78 public Result getOutbound(String url) throws Exception {
79 return new Result("http://api.technorati.com/outbound",url,null);
80 }
81
82
83 public class Result {
84 private Weblog mWeblog = null;
85 private Collection mWeblogs = new ArrayList ();
86
87 protected Result(String apiUrl, String url, String type) throws Exception {
88 Map args = new HashMap ();
89 args.put("url", url);
90 args.put("type", type);
91 args.put("format", "xml");
92 args.put("key", mKey);
93
94 int start = 0;
95 boolean repeat = true;
96 XPath itemsPath = XPath.newInstance("/tapi/document/item/weblog");
97
98 while (repeat) {
99 Document doc = getRawResults(apiUrl,args);
100 Element elem = doc.getRootElement();
101 String error = getString(elem,"/tapi/document/result/error");
102 if ( error != null ) throw new Exception (error);
103 if (mWeblog == null) {
104 XPath p = XPath.newInstance("/tapi/document/result/weblog");
105 Element w = (Element) p.selectSingleNode(doc);
106 mWeblog = new Weblog(w);
107 }
108 int count=0;
109 Iterator iter = itemsPath.selectNodes(doc).iterator();
110 while (iter.hasNext()) {
111 Element element = (Element) iter.next();
112 Weblog w = new Weblog(element);
113 mWeblogs.add(w);
114 count++;
115 }
116 if ( count < 20 ) {
117 repeat = false;
118 }
119 else {
120 start += 20;
121 args.put("start",new Integer (start));
122 }
123 }
124 }
125
126 public Weblog getWeblog() {return mWeblog;}
127 public Collection getWeblogs() {return mWeblogs;}
128 }
129
130
131 public class Weblog {
132 private String mName = null;
133 private String mUrl = null;
134 private String mRssurl = null;
135 private String mLastupdate = null;
136 private String mNearestpermalink = null;
137 private String mExcerpt = null;
138 private int mInboundlinks = 0;
139 private int mInboundblogs = 0;
140
141 public Weblog(Element elem) throws Exception {
142 mName = getString(elem,"name");
143 mUrl = getString(elem,"url");
144 mRssurl = getString(elem,"rssurl");
145 mLastupdate = getString(elem,"lastupdate");
146 mNearestpermalink = getString(elem,"nearestpermalink");
147 mExcerpt = getString(elem,"excerpt");
148 try {
149 mInboundlinks = getInt(elem,"inboundlinks");
150 } catch (Exception ignored) {}
151 try {
152 mInboundblogs = getInt(elem,"inboundblogs");
153 } catch (Exception ignored) {}
154 }
155
156 public String getName() {return mName;}
157 public String getUrl() {return mUrl;}
158 public String getRssurl() {return mRssurl;}
159 public int getInboundblogs() {return mInboundblogs;}
160 public int getInboundlinks() {return mInboundlinks;}
161 public String getLastupdate() {return mLastupdate;}
162 public String getNearestpermalink() {return mNearestpermalink;}
163 public String getExcerpt() {return mExcerpt;}
164 }
165
166 protected Document getRawResults(String urlString, Map args) throws Exception {
167 int count = 0;
168 Iterator keys = args.keySet().iterator();
169 while (keys.hasNext()) {
170 String sep = count++==0 ? "?" : "&";
171 String name = (String )keys.next();
172 if ( args.get(name) != null ) {
173 urlString += sep + name + "=" + args.get(name);
174 }
175 }
176 URL url = new URL (urlString);
177 URLConnection conn = url.openConnection();
178 conn.connect();
179 SAXBuilder builder = new SAXBuilder();
180 return builder.build(conn.getInputStream());
181 }
182
183 protected String getString(Element elem, String path) throws Exception {
184 XPath xpath = XPath.newInstance(path);
185 Element e = (Element)xpath.selectSingleNode(elem);
186 return e!=null ? e.getText() : null;
187 }
188
189 protected int getInt(Element elem, String path) throws Exception {
190 XPath xpath = XPath.newInstance(path);
191 Element e = (Element)xpath.selectSingleNode(elem);
192 return e!=null ? Integer.parseInt(e.getText()) : 0;
193 }
194 }
195 |
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