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Mapping: default mapping with dynamic templates can cause them to double on each restart, closes #1964.

This commit is contained in:
Shay Banon 2012-05-18 01:11:32 +03:00
parent 2cca50d238
commit b4512cd471
1 changed files with 39 additions and 3 deletions
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42
src/main/java/org/elasticsearch/common/xcontent/XContentHelper.java
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@ -20,6 +20,7 @@
package org.elasticsearch.common.xcontent;
import com.google.common.base.Charsets;
import com.google.common.collect.Maps;
import org.elasticsearch.ElasticSearchParseException;
import org.elasticsearch.common.collect.Tuple;
import org.elasticsearch.common.compress.lzf.LZF;
@ -108,16 +109,51 @@ public class XContentHelper {
if (content.get(defaultEntry.getKey()) instanceof Map && defaultEntry.getValue() instanceof Map) {
mergeDefaults((Map<String, Object>) content.get(defaultEntry.getKey()), (Map<String, Object>) defaultEntry.getValue());
} else if (content.get(defaultEntry.getKey()) instanceof List && defaultEntry.getValue() instanceof List) {
// if both are lists, simply combine them, first the defaults, then the content
List defaultList = (List) defaultEntry.getValue();
List contentList = (List) content.get(defaultEntry.getKey());
List mergedList = new ArrayList();
mergedList.addAll((Collection) defaultEntry.getValue());
mergedList.addAll((Collection) content.get(defaultEntry.getKey()));
if (allListValuesAreMapsOfOne(defaultList) && allListValuesAreMapsOfOne(contentList)) {
// all are in the form of [ {"key1" : {}}, {"key2" : {}} ], merge based on keys
Map<String, Map<String, Object>> processed = Maps.newLinkedHashMap();
for (Object o : contentList) {
Map<String, Object> map = (Map<String, Object>) o;
Map.Entry<String, Object> entry = map.entrySet().iterator().next();
processed.put(entry.getKey(), map);
}
for (Object o : defaultList) {
Map<String, Object> map = (Map<String, Object>) o;
Map.Entry<String, Object> entry = map.entrySet().iterator().next();
if (processed.containsKey(entry.getKey())) {
mergeDefaults(processed.get(entry.getKey()), map);
}
}
for (Map<String, Object> map : processed.values()) {
mergedList.add(map);
}
} else {
// if both are lists, simply combine them, first the defaults, then the content
mergedList.addAll((Collection) defaultEntry.getValue());
mergedList.addAll((Collection) content.get(defaultEntry.getKey()));
}
content.put(defaultEntry.getKey(), mergedList);
}
}
}
}
private static boolean allListValuesAreMapsOfOne(List list) {
for (Object o : list) {
if (!(o instanceof Map)) {
return false;
}
if (((Map) o).size() != 1) {
return false;
}
}
return true;
}
public static void copyCurrentStructure(XContentGenerator generator, XContentParser parser) throws IOException {
XContentParser.Token t = parser.currentToken();