|
1
|
package eu.dnetlib.functionality.index.query;
|
|
2
|
|
|
3
|
import java.util.List;
|
|
4
|
import java.util.Map;
|
|
5
|
|
|
6
|
import org.apache.commons.logging.Log;
|
|
7
|
import org.apache.commons.logging.LogFactory;
|
|
8
|
import org.dom4j.Document;
|
|
9
|
import org.dom4j.Element;
|
|
10
|
import org.springframework.beans.factory.annotation.Autowired;
|
|
11
|
import org.springframework.beans.factory.annotation.Required;
|
|
12
|
|
|
13
|
import com.google.common.collect.BiMap;
|
|
14
|
import com.google.common.collect.HashBiMap;
|
|
15
|
import com.google.common.collect.Maps;
|
|
16
|
|
|
17
|
import eu.dnetlib.data.provision.index.rmi.IndexServiceException;
|
|
18
|
import eu.dnetlib.functionality.index.client.IndexClientException;
|
|
19
|
import eu.dnetlib.functionality.index.utils.IndexFieldUtility;
|
|
20
|
import eu.dnetlib.functionality.index.utils.MDFormatReader;
|
|
21
|
import eu.dnetlib.functionality.index.utils.MetadataReference;
|
|
22
|
import eu.dnetlib.functionality.index.utils.ServiceTools;
|
|
23
|
|
|
24
|
/**
|
|
25
|
* The Class BrowseAliases.
|
|
26
|
*/
|
|
27
|
public class BrowseAliases {
|
|
28
|
|
|
29
|
/**
|
|
30
|
* logger.
|
|
31
|
*/
|
|
32
|
private static final Log log = LogFactory.getLog(BrowseAliases.class); // NOPMD
|
|
33
|
|
|
34
|
/** The aliases. */
|
|
35
|
private Map<MetadataReference, BiMap<String, String>> aliases = Maps.newConcurrentMap();
|
|
36
|
|
|
37
|
private ServiceTools serviceTools;
|
|
38
|
|
|
39
|
@Autowired
|
|
40
|
private MDFormatReader mdFormatReader;
|
|
41
|
|
|
42
|
/**
|
|
43
|
* Initialize.
|
|
44
|
*
|
|
45
|
* @throws IndexServiceException
|
|
46
|
* the index service exception
|
|
47
|
*/
|
|
48
|
public void initialize() throws IndexClientException {
|
|
49
|
log.info("initializing browse aliases");
|
|
50
|
for (MetadataReference mdRef : getServiceTools().listMDRefs()) {
|
|
51
|
log.debug("inside foreach");
|
|
52
|
put(mdRef);
|
|
53
|
}
|
|
54
|
log.info("browse aliases initialization completed");
|
|
55
|
}
|
|
56
|
|
|
57
|
/**
|
|
58
|
* Put.
|
|
59
|
*
|
|
60
|
* @param mdRef
|
|
61
|
* the metadata refeference
|
|
62
|
*/
|
|
63
|
public void put(final MetadataReference mdRef) {
|
|
64
|
final Document fields = mdFormatReader.getFields(mdRef);
|
|
65
|
if (fields != null) {
|
|
66
|
aliases.put(mdRef, extractBrowsingAliases(fields));
|
|
67
|
} else {
|
|
68
|
// log.info("couldn't find any");
|
|
69
|
BiMap<String, String> m = HashBiMap.create();
|
|
70
|
aliases.put(mdRef, m);
|
|
71
|
}
|
|
72
|
}
|
|
73
|
|
|
74
|
/**
|
|
75
|
* Gets the.
|
|
76
|
*
|
|
77
|
* @param mdRef
|
|
78
|
* the md ref
|
|
79
|
* @return browsing aliases for given mdRef.
|
|
80
|
* @throws IndexClientException
|
|
81
|
*/
|
|
82
|
public BiMap<String, String> get(final MetadataReference mdRef) throws IndexClientException {
|
|
83
|
if ((aliases == null) || (aliases.size() == 0)) {
|
|
84
|
initialize();
|
|
85
|
}
|
|
86
|
return aliases.get(mdRef);
|
|
87
|
}
|
|
88
|
|
|
89
|
/**
|
|
90
|
* Method extract aliases field names from the given fields.
|
|
91
|
*
|
|
92
|
* @param fields
|
|
93
|
* the fields
|
|
94
|
* @return aliases map. Keys are "normal" field names, values are names of the non-tokenized version of the field
|
|
95
|
*/
|
|
96
|
protected BiMap<String, String> extractBrowsingAliases(final Document fields) {
|
|
97
|
// default tokenizer splits field names, this would cause to
|
|
98
|
// have too many browsing results, so we use an untokenized
|
|
99
|
// alias in place of it.
|
|
100
|
|
|
101
|
final BiMap<String, String> aliases = HashBiMap.create();
|
|
102
|
|
|
103
|
@SuppressWarnings("unchecked")
|
|
104
|
final List<Element> fieldList = fields.getRootElement().selectNodes(IndexFieldUtility.XPATH_BROWSING_ALIAS_FOR);
|
|
105
|
for (final Element e : fieldList) {
|
|
106
|
final String name = e.attribute(IndexFieldUtility.FIELD_BROWSING_ALIAS_FOR).getValue().toLowerCase();
|
|
107
|
final String alias = e.attribute(IndexFieldUtility.FIELD_NAME).getValue().toLowerCase();
|
|
108
|
aliases.put(name, alias);
|
|
109
|
}
|
|
110
|
|
|
111
|
if (aliases.isEmpty()) {
|
|
112
|
log.warn("couldn'f find alias fields for browsing");
|
|
113
|
}
|
|
114
|
return aliases;
|
|
115
|
}
|
|
116
|
|
|
117
|
/**
|
|
118
|
* @return the serviceTools
|
|
119
|
*/
|
|
120
|
public ServiceTools getServiceTools() {
|
|
121
|
return serviceTools;
|
|
122
|
}
|
|
123
|
|
|
124
|
/**
|
|
125
|
* @param serviceTools
|
|
126
|
* the serviceTools to set
|
|
127
|
*/
|
|
128
|
@Required
|
|
129
|
public void setServiceTools(final ServiceTools serviceTools) {
|
|
130
|
this.serviceTools = serviceTools;
|
|
131
|
}
|
|
132
|
|
|
133
|
}
|