|
1
|
package eu.dnetlib.data.collector.plugins.HTTPWithFileName;
|
|
2
|
|
|
3
|
import java.util.ArrayList;
|
|
4
|
import java.util.Iterator;
|
|
5
|
import java.util.Objects;
|
|
6
|
import java.util.concurrent.ArrayBlockingQueue;
|
|
7
|
import java.util.concurrent.TimeUnit;
|
|
8
|
|
|
9
|
import eu.dnetlib.data.collector.rmi.CollectorServiceException;
|
|
10
|
import org.apache.commons.logging.Log;
|
|
11
|
import org.apache.commons.logging.LogFactory;
|
|
12
|
import org.json.JSONObject;
|
|
13
|
import org.json.XML;
|
|
14
|
import org.jsoup.Jsoup;
|
|
15
|
import org.jsoup.nodes.Document;
|
|
16
|
import org.jsoup.nodes.Element;
|
|
17
|
import org.jsoup.select.Elements;
|
|
18
|
|
|
19
|
/**
|
|
20
|
* Created by miriam on 04/05/2018.
|
|
21
|
*/
|
|
22
|
public class HTTPWithFileNameCollectorIterable implements Iterable<String> {
|
|
23
|
private static final Log log = LogFactory.getLog(HTTPWithFileNameCollectorIterable.class);
|
|
24
|
private static final String TERMINATOR = "FINITO";
|
|
25
|
private final ArrayBlockingQueue<String> queue = new ArrayBlockingQueue<String>(100);
|
|
26
|
|
|
27
|
private long waitTime = 60L;
|
|
28
|
|
|
29
|
private final ArrayList<String> urls = new ArrayList<>();
|
|
30
|
private final ArrayList<String> metas = new ArrayList<String>();
|
|
31
|
private String filterParam;
|
|
32
|
|
|
33
|
int total = 0;
|
|
34
|
int filtered = 0;
|
|
35
|
|
|
36
|
public HTTPWithFileNameCollectorIterable(String startUrl, String filter){
|
|
37
|
if (!startUrl.isEmpty())
|
|
38
|
urls.add(startUrl);
|
|
39
|
this.filterParam = filter;
|
|
40
|
Thread ft = new Thread(new FillMetaQueue());
|
|
41
|
ft.start();
|
|
42
|
}
|
|
43
|
|
|
44
|
|
|
45
|
@Override
|
|
46
|
public Iterator<String> iterator() {
|
|
47
|
return new Iterator<String>(){
|
|
48
|
|
|
49
|
private String current;
|
|
50
|
|
|
51
|
@Override
|
|
52
|
public boolean hasNext() {
|
|
53
|
try {
|
|
54
|
current = queue.poll(waitTime, TimeUnit.SECONDS);
|
|
55
|
} catch (InterruptedException e) {
|
|
56
|
log.warn(String.format("could not find elements to consume for more than %s%s", waitTime, TimeUnit.SECONDS));
|
|
57
|
return false;
|
|
58
|
}
|
|
59
|
return !Objects.equals(current, TERMINATOR);
|
|
60
|
}
|
|
61
|
|
|
62
|
@Override
|
|
63
|
public String next() {
|
|
64
|
return current;
|
|
65
|
}
|
|
66
|
|
|
67
|
};
|
|
68
|
}
|
|
69
|
|
|
70
|
private class FillMetaQueue implements Runnable {
|
|
71
|
|
|
72
|
final Connector c = new Connector();
|
|
73
|
|
|
74
|
public void fillQueue() {
|
|
75
|
String url;
|
|
76
|
while((metas.size()>0 || urls.size() > 0 )) {
|
|
77
|
log.debug("metas.size() = " + metas.size() + " urls.size() = " + urls.size() + " queue.size() = " +queue.size());
|
|
78
|
if (metas.size() > 0) {
|
|
79
|
url = metas.remove(0);
|
|
80
|
try {
|
|
81
|
c.get(url);
|
|
82
|
} catch (CollectorServiceException e) {
|
|
83
|
log.info("Impossible to collect url: " + url + " error: " + e.getMessage());
|
|
84
|
}
|
|
85
|
if(c.isStatusOk()){
|
|
86
|
try {
|
|
87
|
String ret = c.getResponse();
|
|
88
|
if (ret != null && ret.length()>0) {
|
|
89
|
if (!containsFilter(ret))
|
|
90
|
queue.offer(addFilePath(ret, url, url.endsWith(".json")), waitTime, TimeUnit.SECONDS);
|
|
91
|
else
|
|
92
|
filtered++;
|
|
93
|
total++;
|
|
94
|
}
|
|
95
|
} catch (InterruptedException e) {
|
|
96
|
log.info("not inserted in queue element associate to url " + url + " error: " + e.getMessage() );
|
|
97
|
|
|
98
|
}
|
|
99
|
}
|
|
100
|
} else {
|
|
101
|
url = urls.remove(0);
|
|
102
|
try {
|
|
103
|
c.get(url);
|
|
104
|
} catch (CollectorServiceException e) {
|
|
105
|
log.info("Impossible to collect url: " + url + " error: " + e.getMessage());
|
|
106
|
}
|
|
107
|
if(c.isStatusOk()) {
|
|
108
|
if (c.responseTypeContains("text/html")){
|
|
109
|
recurFolder(c.getResponse(), url);
|
|
110
|
}
|
|
111
|
else if(c.responseTypeContains("application/json") || c.responseTypeContains("application/xml")){
|
|
112
|
try {
|
|
113
|
final String element = addFilePath(c.getResponse(), url, c.responseTypeContains("application/json"));
|
|
114
|
queue.offer(element, waitTime, TimeUnit.SECONDS);
|
|
115
|
} catch (InterruptedException e) {
|
|
116
|
log.info("not inserted in queue element associate to url " + url + " error: " + e.getMessage() );
|
|
117
|
}
|
|
118
|
}
|
|
119
|
}
|
|
120
|
|
|
121
|
}
|
|
122
|
|
|
123
|
}
|
|
124
|
try {
|
|
125
|
queue.offer(TERMINATOR, waitTime, TimeUnit.SECONDS);
|
|
126
|
} catch (InterruptedException e) {
|
|
127
|
throw new IllegalStateException(String.format("could not add element to queue for more than %s%s", waitTime, TimeUnit.SECONDS), e);
|
|
128
|
}
|
|
129
|
|
|
130
|
}
|
|
131
|
|
|
132
|
private boolean containsFilter(String meta){
|
|
133
|
if (filterParam == null || filterParam.isEmpty())
|
|
134
|
return false;
|
|
135
|
String[] filter = filterParam.split(";");
|
|
136
|
for(String item:filter){
|
|
137
|
if (meta.contains(item))
|
|
138
|
return true;
|
|
139
|
}
|
|
140
|
return false;
|
|
141
|
}
|
|
142
|
|
|
143
|
private String addFilePath(String meta,String url, boolean isJson){
|
|
144
|
String path = url.replace("metadata", "pdf");
|
|
145
|
|
|
146
|
try {
|
|
147
|
if(isJson)
|
|
148
|
meta = meta.substring(0, meta.length() - 1) + ",'downloadFileUrl':'" + path.substring(0, path.indexOf(".json")) + ".pdf'}";
|
|
149
|
else {
|
|
150
|
|
|
151
|
if (meta.contains("<!DOCTYPE")) {
|
|
152
|
meta = meta.substring(meta.indexOf("<!DOCTYPE"));
|
|
153
|
meta = meta.substring(meta.indexOf(">") + 1);
|
|
154
|
}
|
|
155
|
int index = meta.lastIndexOf("</");
|
|
156
|
meta = meta.substring(0, index) + "<downloadFileUrl>" + path.substring(0, path.indexOf(".xml")) + ".pdf</downloadFileUrl>" + meta.substring(index);
|
|
157
|
}
|
|
158
|
} catch(Exception ex) {
|
|
159
|
log.info("not file with extension .json or .xml");
|
|
160
|
}
|
|
161
|
|
|
162
|
|
|
163
|
if(isJson) {
|
|
164
|
JSONObject jsonobj = null;
|
|
165
|
try {
|
|
166
|
jsonobj = new JSONObject("{'resource':" + meta + "}");
|
|
167
|
|
|
168
|
return XML.toString(jsonobj);
|
|
169
|
} catch(Exception e) {
|
|
170
|
log.fatal("Impossible to transform json object to xml \n" + meta + "\n " + e.getMessage() + "\n" + url);
|
|
171
|
// throw new RuntimeException();
|
|
172
|
jsonobj = new JSONObject("{'resource':{'DOI':'JUNK','url':'"+path+"'}}");
|
|
173
|
meta = XML.toString(jsonobj);
|
|
174
|
}
|
|
175
|
}
|
|
176
|
return meta;
|
|
177
|
}
|
|
178
|
|
|
179
|
private void recurFolder(String text, String url){
|
|
180
|
Document doc = Jsoup.parse(text);
|
|
181
|
Elements links = doc.select("a");
|
|
182
|
for(Element e:links){
|
|
183
|
if (!e.text().equals("../")){
|
|
184
|
String file = e.attr("href");
|
|
185
|
if(file.endsWith(".json") || file.endsWith(".xml"))
|
|
186
|
metas.add(url+file);
|
|
187
|
else
|
|
188
|
urls.add(url+file);
|
|
189
|
}
|
|
190
|
}
|
|
191
|
}
|
|
192
|
|
|
193
|
|
|
194
|
@Override
|
|
195
|
public void run() {
|
|
196
|
fillQueue();
|
|
197
|
}
|
|
198
|
}
|
|
199
|
|
|
200
|
}
|