1 |
35866
|
claudio.at
|
package eu.dnetlib.msro.workflows.hadoop;
|
2 |
|
|
|
3 |
|
|
import java.util.List;
|
4 |
|
|
|
5 |
|
|
import javax.annotation.Resource;
|
6 |
|
|
|
7 |
|
|
import org.apache.commons.logging.Log;
|
8 |
|
|
import org.apache.commons.logging.LogFactory;
|
9 |
|
|
|
10 |
|
|
import com.google.common.collect.Iterables;
|
11 |
|
|
import com.googlecode.sarasvati.NodeToken;
|
12 |
|
|
|
13 |
|
|
import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpService;
|
14 |
|
|
import eu.dnetlib.enabling.locators.UniqueServiceLocator;
|
15 |
|
|
import eu.dnetlib.msro.workflows.nodes.SimpleJobNode;
|
16 |
|
|
|
17 |
|
|
public class FindIndexJobNode extends SimpleJobNode {
|
18 |
|
|
|
19 |
|
|
/**
|
20 |
|
|
* logger.
|
21 |
|
|
*/
|
22 |
|
|
private static final Log log = LogFactory.getLog(FindIndexJobNode.class); // NOPMD by marko on 11/24/08 5:02 PM
|
23 |
|
|
|
24 |
|
|
@Resource
|
25 |
|
|
private UniqueServiceLocator serviceLocator;
|
26 |
|
|
|
27 |
|
|
/**
|
28 |
|
|
* if non null, overrides format from env.
|
29 |
|
|
*/
|
30 |
|
|
private String mdFormat;
|
31 |
|
|
|
32 |
|
|
/**
|
33 |
|
|
* if non null, overrides format from env.
|
34 |
|
|
*/
|
35 |
|
|
private String layout;
|
36 |
|
|
|
37 |
|
|
/**
|
38 |
|
|
* if non null, overrides format from env.
|
39 |
|
|
*/
|
40 |
|
|
private String interpretation;
|
41 |
|
|
|
42 |
|
|
/**
|
43 |
|
|
* {@inheritDoc}
|
44 |
|
|
*
|
45 |
|
|
* @see com.googlecode.sarasvati.mem.MemNode#execute(com.googlecode.sarasvati.Engine, com.googlecode.sarasvati.NodeToken)
|
46 |
|
|
*/
|
47 |
|
|
@Override
|
48 |
|
|
public String execute(final NodeToken token) {
|
49 |
|
|
final String envFormat = token.getFullEnv().getAttribute("format");
|
50 |
|
|
final String envLayout = token.getFullEnv().getAttribute("layout");
|
51 |
|
|
final String envInterpretation = token.getFullEnv().getAttribute("interpretation");
|
52 |
|
|
|
53 |
|
|
final String format = handleOverride(token, "format", envFormat, getMdFormat());
|
54 |
|
|
final String layout = handleOverride(token, "layout", envLayout, getLayout());
|
55 |
|
|
final String interp = handleOverride(token, "interpretation", envInterpretation, getInterpretation());
|
56 |
|
|
|
57 |
|
|
String mdRef = format + "-" + layout + "-" + interp;
|
58 |
|
|
log.info("searching index for [" + mdRef + "]");
|
59 |
|
|
|
60 |
|
|
final String indexId = findIndex(format, layout, interp);
|
61 |
|
|
token.getEnv().setAttribute("index_id", indexId);
|
62 |
|
|
|
63 |
|
|
if (indexId == null || indexId.isEmpty()) {
|
64 |
|
|
log.info("no index was found for [" + mdRef + "]");
|
65 |
|
|
return "notFound";
|
66 |
|
|
} else {
|
67 |
|
|
log.info("index found for [" + mdRef + "]: " + indexId);
|
68 |
|
|
return "found";
|
69 |
|
|
}
|
70 |
|
|
}
|
71 |
|
|
|
72 |
|
|
private String findIndex(final String format, final String layout, final String interp) {
|
73 |
|
|
final String xquery =
|
74 |
|
|
"for $x in /RESOURCE_PROFILE[.//RESOURCE_TYPE/@value='IndexDSResourceType']" + "return $x[.//METADATA_FORMAT = '" + format
|
75 |
|
|
+ "' and .//METADATA_FORMAT_LAYOUT='" + layout + "' and .//METADATA_FORMAT_INTERPRETATION = '" + interp
|
76 |
|
|
+ "']//RESOURCE_IDENTIFIER/@value/string()";
|
77 |
|
|
try {
|
78 |
|
|
log.info("xquery: " + xquery);
|
79 |
|
|
List<String> ids = serviceLocator.getService(ISLookUpService.class).quickSearchProfile(xquery);
|
80 |
|
|
log.info("found indexDS ids: " + ids);
|
81 |
|
|
if (ids == null || ids.isEmpty()) { return null; }
|
82 |
|
|
if (ids.size() > 1) { throw new IllegalStateException("found more than one index of given format: " + format + ", layout: " + layout
|
83 |
|
|
+ ", interpretation: " + interp); }
|
84 |
|
|
return Iterables.getOnlyElement(ids);
|
85 |
|
|
} catch (Exception e) {
|
86 |
|
|
return null;
|
87 |
|
|
}
|
88 |
|
|
}
|
89 |
|
|
|
90 |
|
|
private String handleOverride(final NodeToken token, final String name, final String env, final String override) {
|
91 |
|
|
if (override != null) {
|
92 |
|
|
token.getEnv().setAttribute(name, override);
|
93 |
|
|
}
|
94 |
|
|
return override != null ? override : env;
|
95 |
|
|
}
|
96 |
|
|
|
97 |
|
|
public String getMdFormat() {
|
98 |
|
|
return mdFormat;
|
99 |
|
|
}
|
100 |
|
|
|
101 |
|
|
public void setMdFormat(final String mdFormat) {
|
102 |
|
|
this.mdFormat = mdFormat;
|
103 |
|
|
}
|
104 |
|
|
|
105 |
|
|
public String getLayout() {
|
106 |
|
|
return layout;
|
107 |
|
|
}
|
108 |
|
|
|
109 |
|
|
public void setLayout(final String layout) {
|
110 |
|
|
this.layout = layout;
|
111 |
|
|
}
|
112 |
|
|
|
113 |
|
|
public String getInterpretation() {
|
114 |
|
|
return interpretation;
|
115 |
|
|
}
|
116 |
|
|
|
117 |
|
|
public void setInterpretation(final String interpretation) {
|
118 |
|
|
this.interpretation = interpretation;
|
119 |
|
|
}
|
120 |
|
|
|
121 |
|
|
}
|