Huaping Gu created SOLR-10364:
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Summary: Solr bean binding only support List and Map?
Key: SOLR-10364
URL: https://issues.apache.org/jira/browse/SOLR-10364
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrJ
Affects Versions: 6.4.2, 4.10.4
Reporter: Huaping Gu
Fix For: 4.10.4
In class DocumentObjectBinder.java, when jnject a value from doc to bean class,
seems it only support List and Map, and not support Set. In Cassandra the
collection types includes "set" which Cassandra Java Driver treat it as
LinkedHashSet.
I have a column defined type set<test>. And in the Java Pojo, I set it as
Set<String>.
It will success in Cassandra binding, but fail in Solr with following error:
Caused by: java.lang.IllegalArgumentException: Can not set java.util.Set field
com.xxx.xxxx to java.util.ArrayList
But If I set it Pojo to List<String>, Solr binding will success, but Cassandra
will fail and give me error as bellow:
argument type mismatch - had objects of type "java.util.LinkedHashSet" but
expected signature "java.util.List"
I believe following code may need an update? Which only care about List and Map.
<T> void inject(T obj, SolrDocument sdoc) {
Object val = getFieldValue(sdoc);
if(val == null) {
return;
}
if (isArray && !isContainedInMap) {
List list;
if (val.getClass().isArray()) {
set(obj, val);
return;
} else if (val instanceof List) {
list = (List) val;
} else {
list = new ArrayList();
list.add(val);
}
set(obj, list.toArray((Object[]) Array.newInstance(type, list.size())));
} else if (isList && !isContainedInMap) {
if (!(val instanceof List)) {
List list = new ArrayList();
list.add(val);
val = list;
}
set(obj, val);
} else if (isContainedInMap) {
if (val instanceof Map) {
set(obj, val);
}
} else {
set(obj, val);
}
}
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