1 |
26600
|
sandro.lab
|
package eu.dnetlib.data.download.worker;
|
2 |
|
|
|
3 |
32258
|
sandro.lab
|
import java.io.IOException;
|
4 |
|
|
import java.net.HttpURLConnection;
|
5 |
26600
|
sandro.lab
|
import java.net.URL;
|
6 |
|
|
import java.util.concurrent.BlockingQueue;
|
7 |
31882
|
sandro.lab
|
import java.util.concurrent.Callable;
|
8 |
26600
|
sandro.lab
|
|
9 |
32020
|
sandro.lab
|
import com.google.common.base.Function;
|
10 |
32283
|
sandro.lab
|
import com.google.common.base.Joiner;
|
11 |
|
|
import eu.dnetlib.data.download.DownloadReport;
|
12 |
|
|
import eu.dnetlib.data.download.DownloadReportMap;
|
13 |
33251
|
sandro.lab
|
import eu.dnetlib.data.download.DownloadServiceImpl;
|
14 |
26600
|
sandro.lab
|
import eu.dnetlib.data.download.rmi.DownloadItem;
|
15 |
|
|
import eu.dnetlib.data.objectstore.modular.ObjectStoreRecord;
|
16 |
|
|
import eu.dnetlib.data.objectstore.modular.connector.ObjectStore;
|
17 |
|
|
import eu.dnetlib.data.objectstore.rmi.ObjectStoreFile;
|
18 |
31831
|
sandro.lab
|
import eu.dnetlib.data.objectstore.rmi.ObjectStoreServiceException;
|
19 |
26600
|
sandro.lab
|
import eu.dnetlib.data.objectstore.rmi.Protocols;
|
20 |
40412
|
claudio.at
|
import org.apache.commons.lang.StringUtils;
|
21 |
40366
|
claudio.at
|
import org.apache.commons.logging.Log;
|
22 |
|
|
import org.apache.commons.logging.LogFactory;
|
23 |
26600
|
sandro.lab
|
|
24 |
|
|
/**
|
25 |
|
|
* The Class DownloadWorker is a worker responsible to download the data into the object store.
|
26 |
|
|
*/
|
27 |
32283
|
sandro.lab
|
public class DownloadWorker implements Callable<DownloadReportMap> {
|
28 |
26600
|
sandro.lab
|
|
29 |
33251
|
sandro.lab
|
/**
|
30 |
|
|
* The Constant log.
|
31 |
|
|
*/
|
32 |
|
|
private static final Log log = LogFactory.getLog(DownloadWorker.class);
|
33 |
26600
|
sandro.lab
|
|
34 |
33251
|
sandro.lab
|
/**
|
35 |
|
|
* The queue.
|
36 |
|
|
*/
|
37 |
|
|
private BlockingQueue<String> queue = null;
|
38 |
26600
|
sandro.lab
|
|
39 |
33251
|
sandro.lab
|
/**
|
40 |
|
|
* The object store.
|
41 |
|
|
*/
|
42 |
|
|
private ObjectStore objectStore = null;
|
43 |
26600
|
sandro.lab
|
|
44 |
33251
|
sandro.lab
|
/**
|
45 |
|
|
* The protocol.
|
46 |
|
|
*/
|
47 |
|
|
private Protocols protocol;
|
48 |
26600
|
sandro.lab
|
|
49 |
33251
|
sandro.lab
|
/**
|
50 |
|
|
* The mime type.
|
51 |
|
|
*/
|
52 |
|
|
private String mimeType;
|
53 |
26600
|
sandro.lab
|
|
54 |
33251
|
sandro.lab
|
private Function<String, DownloadItem> converter;
|
55 |
32020
|
sandro.lab
|
|
56 |
33251
|
sandro.lab
|
/**
|
57 |
|
|
* Instantiates a new download worker.
|
58 |
|
|
*
|
59 |
|
|
* @param queue
|
60 |
|
|
* the queue
|
61 |
|
|
* @param objectStore
|
62 |
|
|
* the object store
|
63 |
|
|
* @param protocol
|
64 |
|
|
* the protocol
|
65 |
|
|
* @param mimeType
|
66 |
|
|
* the mime type
|
67 |
|
|
*/
|
68 |
|
|
public DownloadWorker(final BlockingQueue<String> queue, final ObjectStore objectStore, final Protocols protocol, final String mimeType,
|
69 |
|
|
final Function<String, DownloadItem> converter) {
|
70 |
|
|
this.setConverter(converter);
|
71 |
|
|
this.setQueue(queue);
|
72 |
|
|
this.setObjectStore(objectStore);
|
73 |
|
|
this.setMimeType(mimeType);
|
74 |
|
|
this.setProtocol(protocol);
|
75 |
|
|
}
|
76 |
26600
|
sandro.lab
|
|
77 |
33251
|
sandro.lab
|
/*
|
78 |
|
|
* (non-Javadoc)
|
79 |
36413
|
sandro.lab
|
*
|
80 |
33251
|
sandro.lab
|
* @see java.lang.Runnable#run()
|
81 |
|
|
*/
|
82 |
|
|
@Override
|
83 |
|
|
public DownloadReportMap call() throws Exception {
|
84 |
33912
|
claudio.at
|
final DownloadReportMap report = new DownloadReportMap();
|
85 |
40412
|
claudio.at
|
final long threadId = Thread.currentThread().getId();
|
86 |
33251
|
sandro.lab
|
try {
|
87 |
33905
|
sandro.lab
|
|
88 |
33912
|
claudio.at
|
String takedObject = queue.take();
|
89 |
33905
|
sandro.lab
|
DownloadItem di = getConverter().apply(takedObject);
|
90 |
|
|
if (log.isDebugEnabled()) {
|
91 |
|
|
log.debug(takedObject);
|
92 |
|
|
}
|
93 |
|
|
|
94 |
33251
|
sandro.lab
|
while (DownloadServiceImpl.END_QUEUE != di) {
|
95 |
36413
|
sandro.lab
|
|
96 |
40412
|
claudio.at
|
log.debug(threadId + ": Reading " + takedObject);
|
97 |
36413
|
sandro.lab
|
|
98 |
33251
|
sandro.lab
|
if (di == null) {
|
99 |
33905
|
sandro.lab
|
log.info("the current download item is Null, skipping");
|
100 |
33251
|
sandro.lab
|
}
|
101 |
40412
|
claudio.at
|
if ((di != null) && StringUtils.isNotBlank(di.getUrl()) && !checkIfExists(di)) {
|
102 |
33251
|
sandro.lab
|
try {
|
103 |
33912
|
claudio.at
|
final URL toDownload = followURL(new URL(di.getUrl()), report, di);
|
104 |
|
|
final ObjectStoreRecord record = new ObjectStoreRecord();
|
105 |
|
|
final ObjectStoreFile metadata = new ObjectStoreFile();
|
106 |
33251
|
sandro.lab
|
metadata.setObjectID(di.getFileName());
|
107 |
|
|
metadata.setMetadataRelatedID(di.getIdItemMetadata());
|
108 |
|
|
metadata.setAccessProtocol(this.protocol);
|
109 |
|
|
metadata.setMimeType(this.mimeType);
|
110 |
|
|
metadata.setDownloadedURL(di.getOriginalUrl());
|
111 |
|
|
record.setFileMetadata(metadata);
|
112 |
|
|
record.setInputStream(toDownload.openStream());
|
113 |
|
|
objectStore.feedObjectRecord(record);
|
114 |
|
|
report.addDowload();
|
115 |
|
|
log.debug("Saved object " + metadata.toJSON());
|
116 |
36413
|
sandro.lab
|
} catch (final Throwable e) {
|
117 |
40412
|
claudio.at
|
log.error("An error occurred processing the Download Item: " + di.toJSON(), e);
|
118 |
40366
|
claudio.at
|
reportException(report, di, e);
|
119 |
33251
|
sandro.lab
|
}
|
120 |
|
|
}
|
121 |
33912
|
claudio.at
|
takedObject = queue.take();
|
122 |
40412
|
claudio.at
|
log.debug(threadId + ": Next Object From Queue " + takedObject);
|
123 |
33905
|
sandro.lab
|
di = getConverter().apply(takedObject);
|
124 |
33912
|
claudio.at
|
if (log.isDebugEnabled()) {
|
125 |
|
|
log.debug(takedObject);
|
126 |
|
|
}
|
127 |
33251
|
sandro.lab
|
}
|
128 |
|
|
queue.put(DownloadServiceImpl.END_QUEUE_STRING);
|
129 |
33912
|
claudio.at
|
} catch (final Exception e) {
|
130 |
33905
|
sandro.lab
|
log.error("An error occured : " + Joiner.on("\tat ").join(e.getStackTrace()));
|
131 |
40412
|
claudio.at
|
reportException(report, null, e);
|
132 |
33251
|
sandro.lab
|
report.setStatus(false);
|
133 |
|
|
return report;
|
134 |
|
|
}
|
135 |
26600
|
sandro.lab
|
|
136 |
40412
|
claudio.at
|
log.info("CLOSED THREAD " + threadId);
|
137 |
33251
|
sandro.lab
|
report.setStatus(true);
|
138 |
|
|
return report;
|
139 |
|
|
}
|
140 |
26600
|
sandro.lab
|
|
141 |
40366
|
claudio.at
|
private void reportException(final DownloadReportMap report, final DownloadItem di, final Throwable e) {
|
142 |
33912
|
claudio.at
|
final String className = e.getClass().getName();
|
143 |
33251
|
sandro.lab
|
if (!report.containsKey(className)) {
|
144 |
33912
|
claudio.at
|
final DownloadReport dr = new DownloadReport();
|
145 |
33251
|
sandro.lab
|
dr.setStackTrace(Joiner.on("\tat ").join(e.getStackTrace()));
|
146 |
40412
|
claudio.at
|
if (di != null) {
|
147 |
|
|
dr.setRecordId(di.getIdItemMetadata());
|
148 |
|
|
}
|
149 |
33251
|
sandro.lab
|
report.put(className, dr);
|
150 |
|
|
} else {
|
151 |
|
|
report.get(className).incrementError();
|
152 |
|
|
}
|
153 |
|
|
}
|
154 |
32258
|
sandro.lab
|
|
155 |
36413
|
sandro.lab
|
private URL followURL(final URL inputURL, final DownloadReportMap report, final DownloadItem di) throws IOException {
|
156 |
32258
|
sandro.lab
|
|
157 |
33912
|
claudio.at
|
final String ptrcl = inputURL.getProtocol();
|
158 |
33251
|
sandro.lab
|
if (ptrcl.startsWith("file")) {
|
159 |
33905
|
sandro.lab
|
log.debug("the protocol is File, returning " + inputURL);
|
160 |
33251
|
sandro.lab
|
return inputURL;
|
161 |
|
|
}
|
162 |
32283
|
sandro.lab
|
|
163 |
33251
|
sandro.lab
|
HttpURLConnection conn;
|
164 |
32258
|
sandro.lab
|
|
165 |
36413
|
sandro.lab
|
conn = (HttpURLConnection) inputURL.openConnection();
|
166 |
|
|
conn.setInstanceFollowRedirects(true); // you still need to handle redirect manully.
|
167 |
|
|
HttpURLConnection.setFollowRedirects(true);
|
168 |
|
|
String location = inputURL.toString();
|
169 |
|
|
if ((conn.getResponseCode() >= 300) && (conn.getResponseCode() < 400)) {
|
170 |
|
|
location = conn.getHeaderFields().get("Location").get(0);
|
171 |
|
|
conn.disconnect();
|
172 |
|
|
}
|
173 |
32258
|
sandro.lab
|
|
174 |
36413
|
sandro.lab
|
if (!location.equals(inputURL.toString())) return new URL(location);
|
175 |
|
|
return inputURL;
|
176 |
33251
|
sandro.lab
|
}
|
177 |
32258
|
sandro.lab
|
|
178 |
33251
|
sandro.lab
|
private boolean checkIfExists(final DownloadItem di) {
|
179 |
|
|
try {
|
180 |
|
|
return objectStore.deliverObject(di.getFileName()) != null;
|
181 |
33912
|
claudio.at
|
} catch (final ObjectStoreServiceException e) {
|
182 |
33920
|
claudio.at
|
log.debug(e.getMessage());
|
183 |
33251
|
sandro.lab
|
return false;
|
184 |
|
|
}
|
185 |
|
|
}
|
186 |
31831
|
sandro.lab
|
|
187 |
33251
|
sandro.lab
|
/**
|
188 |
|
|
* Sets the object store.
|
189 |
|
|
*
|
190 |
|
|
* @param objectStore
|
191 |
|
|
* the objectStore to set
|
192 |
|
|
*/
|
193 |
|
|
public void setObjectStore(final ObjectStore objectStore) {
|
194 |
|
|
this.objectStore = objectStore;
|
195 |
|
|
}
|
196 |
26600
|
sandro.lab
|
|
197 |
33251
|
sandro.lab
|
/**
|
198 |
|
|
* Sets the queue.
|
199 |
|
|
*
|
200 |
|
|
* @param queue
|
201 |
|
|
* the queue to set
|
202 |
|
|
*/
|
203 |
|
|
public void setQueue(final BlockingQueue<String> queue) {
|
204 |
|
|
this.queue = queue;
|
205 |
|
|
}
|
206 |
26600
|
sandro.lab
|
|
207 |
33251
|
sandro.lab
|
/**
|
208 |
|
|
* Sets the protocol.
|
209 |
|
|
*
|
210 |
|
|
* @param protocol
|
211 |
|
|
* the protocol to set
|
212 |
|
|
*/
|
213 |
|
|
public void setProtocol(final Protocols protocol) {
|
214 |
|
|
this.protocol = protocol;
|
215 |
|
|
}
|
216 |
26600
|
sandro.lab
|
|
217 |
33251
|
sandro.lab
|
/**
|
218 |
|
|
* Sets the mime type.
|
219 |
|
|
*
|
220 |
|
|
* @param mimeType
|
221 |
|
|
* the mimeType to set
|
222 |
|
|
*/
|
223 |
|
|
public void setMimeType(final String mimeType) {
|
224 |
|
|
this.mimeType = mimeType;
|
225 |
|
|
}
|
226 |
26600
|
sandro.lab
|
|
227 |
33251
|
sandro.lab
|
public Function<String, DownloadItem> getConverter() {
|
228 |
|
|
return converter;
|
229 |
|
|
}
|
230 |
32020
|
sandro.lab
|
|
231 |
33251
|
sandro.lab
|
public void setConverter(final Function<String, DownloadItem> converter) {
|
232 |
|
|
this.converter = converter;
|
233 |
|
|
}
|
234 |
26600
|
sandro.lab
|
}
|