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Mappings: Remove dead code after previous refactorings
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This is mostly removing code that handled deletion of types, which was
removed in elastic#8877.

closes elastic#10666
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@rjernst
rjernst committed Apr 20, 2015
1 parent dc17427 commit ba6a0c1
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Showing 15 changed files with 73 additions and 164 deletions.
3 changes: 2 additions & 1 deletion .../elasticsearch/action/admin/indices/mapping/get/TransportGetFieldMappingsIndexAction.java
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Expand Up @@ -22,6 +22,7 @@
import com.google.common.base.Predicate;
import com.google.common.collect.Collections2;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.admin.indices.mapping.get.GetFieldMappingsResponse.FieldMappingMetaData;
import org.elasticsearch.action.support.ActionFilters;
Expand Down Expand Up @@ -187,7 +188,7 @@ private ImmutableMap<String, FieldMappingMetaData> findFieldMappingsByType(Docum
} else if (Regex.isSimpleMatchPattern(field)) {
// go through the field mappers 3 times, to make sure we give preference to the resolve order: full name, index name, name.
// also make sure we only store each mapper once.
Collection<FieldMapper<?>> remainingFieldMappers = new LinkedList<>(allFieldMappers);
Collection<FieldMapper<?>> remainingFieldMappers = Lists.newLinkedList(allFieldMappers);
for (Iterator<FieldMapper<?>> it = remainingFieldMappers.iterator(); it.hasNext(); ) {
final FieldMapper<?> fieldMapper = it.next();
if (Regex.simpleMatch(field, fieldMapper.names().fullName())) {
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6 changes: 3 additions & 3 deletions src/main/java/org/elasticsearch/action/mlt/TransportMoreLikeThisAction.java
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Expand Up @@ -148,9 +148,9 @@ public void onResponse(GetResponse getResponse) {
final Set<String> fields = newHashSet();
if (request.fields() != null) {
for (String field : request.fields()) {
FieldMappers fieldMappers = docMapper.mappers().smartName(field);
if (fieldMappers != null) {
fields.add(fieldMappers.mapper().names().indexName());
FieldMapper fieldMapper = docMapper.mappers().smartNameFieldMapper(field);
if (fieldMapper != null) {
fields.add(fieldMapper.names().indexName());
} else {
fields.add(field);
}
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6 changes: 3 additions & 3 deletions src/main/java/org/elasticsearch/index/get/ShardGetService.java
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Expand Up @@ -363,13 +363,13 @@ private GetResult innerGetLoadFromStoredFields(String type, String id, String[]
SearchLookup searchLookup = null;
for (String field : gFields) {
Object value = null;
FieldMappers fieldMapper = docMapper.mappers().smartName(field);
FieldMapper fieldMapper = docMapper.mappers().smartNameFieldMapper(field);
if (fieldMapper == null) {
if (docMapper.objectMappers().get(field) != null) {
// Only fail if we know it is a object field, missing paths / fields shouldn't fail.
throw new ElasticsearchIllegalArgumentException("field [" + field + "] isn't a leaf field");
}
} else if (!fieldMapper.mapper().fieldType().stored() && !fieldMapper.mapper().isGenerated()) {
} else if (!fieldMapper.fieldType().stored() && !fieldMapper.isGenerated()) {
if (searchLookup == null) {
searchLookup = new SearchLookup(mapperService, fieldDataService, new String[]{type});
LeafSearchLookup leafSearchLookup = searchLookup.getLeafSearchLookup(docIdAndVersion.context);
Expand All @@ -380,7 +380,7 @@ private GetResult innerGetLoadFromStoredFields(String type, String id, String[]
List<Object> values = searchLookup.source().extractRawValues(field);
if (!values.isEmpty()) {
for (int i = 0; i < values.size(); i++) {
values.set(i, fieldMapper.mapper().valueForSearch(values.get(i)));
values.set(i, fieldMapper.valueForSearch(values.get(i)));
}
value = values;
}
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12 changes: 5 additions & 7 deletions src/main/java/org/elasticsearch/index/mapper/DocumentFieldMappers.java
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Expand Up @@ -21,21 +21,20 @@

import com.google.common.base.Function;
import com.google.common.collect.Collections2;
import com.google.common.collect.ForwardingSet;
import com.google.common.collect.Maps;
import org.apache.lucene.analysis.Analyzer;
import org.elasticsearch.index.analysis.AnalysisService;
import org.elasticsearch.index.analysis.FieldNameAnalyzer;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
*
*/
public final class DocumentFieldMappers extends ForwardingSet<FieldMapper<?>> {
public final class DocumentFieldMappers implements Iterable<FieldMapper<?>> {

private final FieldMappersLookup fieldMappers;

Expand Down Expand Up @@ -104,7 +103,7 @@ public List<String> simpleMatchToFullName(String pattern) {
* Tries to find first based on {@link #fullName(String)}, then by {@link #indexName(String)}, and last
* by {@link #name(String)}.
*/
public FieldMappers smartName(String name) {
FieldMappers smartName(String name) {
return fieldMappers.smartName(name);
}

Expand Down Expand Up @@ -140,8 +139,7 @@ public Analyzer searchQuoteAnalyzer() {
return this.searchQuoteAnalyzer;
}

@Override
protected Set<FieldMapper<?>> delegate() {
return fieldMappers;
public Iterator<FieldMapper<?>> iterator() {
return fieldMappers.iterator();
}
}
8 changes: 4 additions & 4 deletions src/main/java/org/elasticsearch/index/mapper/DocumentMapper.java
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Expand Up @@ -489,14 +489,14 @@ public ParsedDocument parse(SourceToParse source, @Nullable ParseListener listen
// lock to avoid concurrency issues with mapping updates coming from the API
synchronized(this) {
// simulate on the first time to check if the mapping update is applicable
MergeContext mergeContext = newMmergeContext(new MergeFlags().simulate(true));
MergeContext mergeContext = newMergeContext(new MergeFlags().simulate(true));
rootObjectMapper.merge(update, mergeContext);
if (mergeContext.hasConflicts()) {
throw new MapperParsingException("Could not apply generated dynamic mappings: " + Arrays.toString(mergeContext.buildConflicts()));
} else {
// then apply it for real
mappingsModified = true;
mergeContext = newMmergeContext(new MergeFlags().simulate(false));
mergeContext = newMergeContext(new MergeFlags().simulate(false));
rootObjectMapper.merge(update, mergeContext);
}
}
Expand Down Expand Up @@ -665,7 +665,7 @@ public void traverse(ObjectMapperListener listener) {
rootObjectMapper.traverse(listener);
}

private MergeContext newMmergeContext(MergeFlags mergeFlags) {
private MergeContext newMergeContext(MergeFlags mergeFlags) {
return new MergeContext(mergeFlags) {

List<String> conflicts = new ArrayList<>();
Expand Down Expand Up @@ -699,7 +699,7 @@ public String[] buildConflicts() {
}

public synchronized MergeResult merge(DocumentMapper mergeWith, MergeFlags mergeFlags) {
final MergeContext mergeContext = newMmergeContext(mergeFlags);
final MergeContext mergeContext = newMergeContext(mergeFlags);
assert rootMappers.size() == mergeWith.rootMappers.size();

rootObjectMapper.merge(mergeWith.rootObjectMapper, mergeContext);
Expand Down
101 changes: 36 additions & 65 deletions src/main/java/org/elasticsearch/index/mapper/FieldMappersLookup.java
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Expand Up @@ -19,21 +19,20 @@

package org.elasticsearch.index.mapper;

import com.google.common.collect.ForwardingSet;
import com.google.common.collect.Lists;
import org.elasticsearch.common.Nullable;
import org.elasticsearch.common.collect.CopyOnWriteHashMap;
import org.elasticsearch.common.collect.CopyOnWriteHashSet;
import org.elasticsearch.common.regex.Regex;

import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

/**
* A class that holds a map of field mappers from name, index name, and full name.
*/
public class FieldMappersLookup extends ForwardingSet<FieldMapper<?>> {
class FieldMappersLookup implements Iterable<FieldMapper<?>> {

private static CopyOnWriteHashMap<String, FieldMappers> add(CopyOnWriteHashMap<String, FieldMappers> map, String key, FieldMapper<?> mapper) {
FieldMappers mappers = map.get(key);
Expand All @@ -45,92 +44,44 @@ private static CopyOnWriteHashMap<String, FieldMappers> add(CopyOnWriteHashMap<S
return map.copyAndPut(key, mappers);
}

private static CopyOnWriteHashMap<String, FieldMappers> remove(CopyOnWriteHashMap<String, FieldMappers> map, String key, FieldMapper<?> mapper) {
FieldMappers mappers = map.get(key);
if (mappers == null) {
return map;
}
mappers = mappers.remove(mapper);
if (mappers.isEmpty()) {
return map.copyAndRemove(key);
} else {
return map.copyAndPut(key, mappers);
}
}

private static class MappersLookup {

final CopyOnWriteHashMap<String, FieldMappers> name, indexName, fullName;
final CopyOnWriteHashMap<String, FieldMappers> indexName, fullName;

MappersLookup(CopyOnWriteHashMap<String, FieldMappers> name, CopyOnWriteHashMap<String,
FieldMappers> indexName, CopyOnWriteHashMap<String, FieldMappers> fullName) {
this.name = name;
MappersLookup(CopyOnWriteHashMap<String, FieldMappers> indexName, CopyOnWriteHashMap<String, FieldMappers> fullName) {
this.indexName = indexName;
this.fullName = fullName;
}

MappersLookup addNewMappers(Iterable<? extends FieldMapper<?>> mappers) {
CopyOnWriteHashMap<String, FieldMappers> name = this.name;
CopyOnWriteHashMap<String, FieldMappers> indexName = this.indexName;
CopyOnWriteHashMap<String, FieldMappers> fullName = this.fullName;
for (FieldMapper<?> mapper : mappers) {
name = add(name, mapper.names().name(), mapper);
indexName = add(indexName, mapper.names().indexName(), mapper);
fullName = add(fullName, mapper.names().fullName(), mapper);
}
return new MappersLookup(name, indexName, fullName);
}

MappersLookup removeMappers(Iterable<?> mappers) {
CopyOnWriteHashMap<String, FieldMappers> name = this.name;
CopyOnWriteHashMap<String, FieldMappers> indexName = this.indexName;
CopyOnWriteHashMap<String, FieldMappers> fullName = this.fullName;
for (Object o : mappers) {
if (!(o instanceof FieldMapper)) {
continue;
}
FieldMapper<?> mapper = (FieldMapper<?>) o;
name = remove(name, mapper.names().name(), mapper);
indexName = remove(indexName, mapper.names().indexName(), mapper);
fullName = remove(fullName, mapper.names().fullName(), mapper);
}
return new MappersLookup(name, indexName, fullName);
return new MappersLookup(indexName, fullName);
}

}

private final CopyOnWriteHashSet<FieldMapper<?>> mappers;
private final MappersLookup lookup;

/** Create a new empty instance. */
public FieldMappersLookup() {
this(new CopyOnWriteHashSet<FieldMapper<?>>(),
new MappersLookup(new CopyOnWriteHashMap<String, FieldMappers>(),
new CopyOnWriteHashMap<String, FieldMappers>(),
this(new MappersLookup(new CopyOnWriteHashMap<String, FieldMappers>(),
new CopyOnWriteHashMap<String, FieldMappers>()));
}

private FieldMappersLookup(CopyOnWriteHashSet<FieldMapper<?>> mappers, MappersLookup lookup) {
this.mappers = mappers;
private FieldMappersLookup(MappersLookup lookup) {
this.lookup = lookup;
}

/**
* Return a new instance that contains the union of this instance and the provided mappers.
*/
public FieldMappersLookup copyAndAddAll(Collection<? extends FieldMapper<?>> newMappers) {
return new FieldMappersLookup(mappers.copyAndAddAll(newMappers), lookup.addNewMappers(newMappers));
}

/**
* Return a new instance that contains this instance minus the provided mappers.
*/
public FieldMappersLookup copyAndRemoveAll(Collection<?> mappersToRemove) {
final CopyOnWriteHashSet<FieldMapper<?>> newMappers = mappers.copyAndRemoveAll(mappersToRemove);
if (newMappers != mappers) {
return new FieldMappersLookup(newMappers, lookup.removeMappers(mappersToRemove));
} else {
return this;
}
return new FieldMappersLookup(lookup.addNewMappers(newMappers));
}

/**
Expand All @@ -152,7 +103,7 @@ public FieldMappers fullName(String fullName) {
*/
public List<String> simpleMatchToIndexNames(String pattern) {
List<String> fields = Lists.newArrayList();
for (FieldMapper<?> fieldMapper : mappers) {
for (FieldMapper<?> fieldMapper : this) {
if (Regex.simpleMatch(pattern, fieldMapper.names().fullName())) {
fields.add(fieldMapper.names().indexName());
} else if (Regex.simpleMatch(pattern, fieldMapper.names().indexName())) {
Expand All @@ -167,7 +118,7 @@ public List<String> simpleMatchToIndexNames(String pattern) {
*/
public List<String> simpleMatchToFullName(String pattern) {
List<String> fields = Lists.newArrayList();
for (FieldMapper<?> fieldMapper : mappers) {
for (FieldMapper<?> fieldMapper : this) {
if (Regex.simpleMatch(pattern, fieldMapper.names().fullName())) {
fields.add(fieldMapper.names().fullName());
} else if (Regex.simpleMatch(pattern, fieldMapper.names().indexName())) {
Expand All @@ -181,7 +132,7 @@ public List<String> simpleMatchToFullName(String pattern) {
* Tries to find first based on {@link #fullName(String)}, then by {@link #indexName(String)}.
*/
@Nullable
public FieldMappers smartName(String name) {
FieldMappers smartName(String name) {
FieldMappers fieldMappers = fullName(name);
if (fieldMappers != null) {
return fieldMappers;
Expand All @@ -202,8 +153,28 @@ public FieldMapper<?> smartNameFieldMapper(String name) {
return fieldMappers.mapper();
}

@Override
protected Set<FieldMapper<?>> delegate() {
return mappers;
public Iterator<FieldMapper<?>> iterator() {
final Iterator<FieldMappers> fieldsItr = lookup.fullName.values().iterator();
if (fieldsItr.hasNext() == false) {
return Collections.emptyIterator();
}
return new Iterator<FieldMapper<?>>() {
Iterator<FieldMapper> fieldValuesItr = fieldsItr.next().iterator();
@Override
public boolean hasNext() {
return fieldsItr.hasNext() || fieldValuesItr.hasNext();
}
@Override
public FieldMapper next() {
if (fieldValuesItr.hasNext() == false && fieldsItr.hasNext()) {
fieldValuesItr = fieldsItr.next().iterator();
}
return fieldValuesItr.next();
}
@Override
public void remove() {
throw new UnsupportedOperationException("cannot remove field mapper from lookup");
}
};
}
}
39 changes: 1 addition & 38 deletions src/main/java/org/elasticsearch/index/mapper/MapperService.java
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Original file line number Diff line number Diff line change
Expand Up @@ -90,7 +90,7 @@ public class MapperService extends AbstractIndexComponent {

public static final String DEFAULT_MAPPING = "_default_";
private static ObjectOpenHashSet<String> META_FIELDS = ObjectOpenHashSet.from(
"_uid", "_id", "_type", "_all", "_analyzer", "_parent", "_routing", "_index",
"_uid", "_id", "_type", "_all", "_parent", "_routing", "_index",
"_size", "_timestamp", "_ttl"
);
private final AnalysisService analysisService;
Expand All @@ -104,7 +104,6 @@ public class MapperService extends AbstractIndexComponent {
private volatile String defaultMappingSource;
private volatile String defaultPercolatorMappingSource;


private volatile Map<String, DocumentMapper> mappers = ImmutableMap.of();

private final Object typeMutex = new Object();
Expand Down Expand Up @@ -394,42 +393,6 @@ private void addFieldMappers(List<FieldMapper<?>> fieldMappers) {
}
}

public void remove(String type) {
synchronized (typeMutex) {
DocumentMapper docMapper = mappers.get(type);
if (docMapper == null) {
return;
}
docMapper.close();
mappers = newMapBuilder(mappers).remove(type).map();
removeObjectAndFieldMappers(docMapper);
for (DocumentTypeListener typeListener : typeListeners) {
typeListener.afterRemove(docMapper);
}
}
}

private void removeObjectAndFieldMappers(DocumentMapper docMapper) {
synchronized (mappersMutex) {
fieldMappers = fieldMappers.copyAndRemoveAll(docMapper.mappers());

ImmutableOpenMap.Builder<String, ObjectMappers> fullPathObjectMappers = ImmutableOpenMap.builder(this.fullPathObjectMappers);
for (ObjectMapper mapper : docMapper.objectMappers().values()) {
ObjectMappers mappers = fullPathObjectMappers.get(mapper.fullPath());
if (mappers != null) {
mappers = mappers.remove(mapper);
if (mappers.isEmpty()) {
fullPathObjectMappers.remove(mapper.fullPath());
} else {
fullPathObjectMappers.put(mapper.fullPath(), mappers);
}
}
}

this.fullPathObjectMappers = fullPathObjectMappers.build();
}
}

public DocumentMapper parse(String mappingType, CompressedString mappingSource, boolean applyDefault) throws MapperParsingException {
String defaultMappingSource;
if (PercolatorService.TYPE_NAME.equals(mappingType)) {
Expand Down
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