Examples with QueryShardContext org.elasticsearch.index.query.QueryShardContext used on opensource projects

Example 46 with QueryShardContext

use of org.elasticsearch.index.query.QueryShardContext in project elasticsearch by elastic.

the class HighlightBuilderTests method testBuildSearchContextHighlight.

/**
     * test that build() outputs a {@link SearchContextHighlight} that is has similar parameters
     * than what we have in the random {@link HighlightBuilder}
     */
public void testBuildSearchContextHighlight() throws IOException {
    Settings indexSettings = Settings.builder().put(IndexMetaData.SETTING_VERSION_CREATED, Version.CURRENT).build();
    Index index = new Index(randomAsciiOfLengthBetween(1, 10), "_na_");
    IndexSettings idxSettings = IndexSettingsModule.newIndexSettings(index, indexSettings);
    // shard context will only need indicesQueriesRegistry for building Query objects nested in highlighter
    QueryShardContext mockShardContext = new QueryShardContext(0, idxSettings, null, null, null, null, null, xContentRegistry(), null, null, System::currentTimeMillis) {

        @Override
        public MappedFieldType fieldMapper(String name) {
            TextFieldMapper.Builder builder = new TextFieldMapper.Builder(name);
            return builder.build(new Mapper.BuilderContext(idxSettings.getSettings(), new ContentPath(1))).fieldType();
        }
    };
    mockShardContext.setMapUnmappedFieldAsString(true);
    for (int runs = 0; runs < NUMBER_OF_TESTBUILDERS; runs++) {
        HighlightBuilder highlightBuilder = randomHighlighterBuilder();
        SearchContextHighlight highlight = highlightBuilder.build(mockShardContext);
        for (SearchContextHighlight.Field field : highlight.fields()) {
            String encoder = highlightBuilder.encoder() != null ? highlightBuilder.encoder() : HighlightBuilder.DEFAULT_ENCODER;
            assertEquals(encoder, field.fieldOptions().encoder());
            final Field fieldBuilder = getFieldBuilderByName(highlightBuilder, field.field());
            assertNotNull("expected a highlight builder for field " + field.field(), fieldBuilder);
            FieldOptions fieldOptions = field.fieldOptions();
            BiConsumer<Function<AbstractHighlighterBuilder<?>, Object>, Function<FieldOptions, Object>> checkSame = mergeBeforeChek(highlightBuilder, fieldBuilder, fieldOptions);
            checkSame.accept(AbstractHighlighterBuilder::boundaryChars, FieldOptions::boundaryChars);
            checkSame.accept(AbstractHighlighterBuilder::boundaryScannerType, FieldOptions::boundaryScannerType);
            checkSame.accept(AbstractHighlighterBuilder::boundaryMaxScan, FieldOptions::boundaryMaxScan);
            checkSame.accept(AbstractHighlighterBuilder::fragmentSize, FieldOptions::fragmentCharSize);
            checkSame.accept(AbstractHighlighterBuilder::fragmenter, FieldOptions::fragmenter);
            checkSame.accept(AbstractHighlighterBuilder::requireFieldMatch, FieldOptions::requireFieldMatch);
            checkSame.accept(AbstractHighlighterBuilder::noMatchSize, FieldOptions::noMatchSize);
            checkSame.accept(AbstractHighlighterBuilder::numOfFragments, FieldOptions::numberOfFragments);
            checkSame.accept(AbstractHighlighterBuilder::phraseLimit, FieldOptions::phraseLimit);
            checkSame.accept(AbstractHighlighterBuilder::highlighterType, FieldOptions::highlighterType);
            checkSame.accept(AbstractHighlighterBuilder::highlightFilter, FieldOptions::highlightFilter);
            checkSame.accept(AbstractHighlighterBuilder::preTags, FieldOptions::preTags);
            checkSame.accept(AbstractHighlighterBuilder::postTags, FieldOptions::postTags);
            checkSame.accept(AbstractHighlighterBuilder::options, FieldOptions::options);
            checkSame.accept(AbstractHighlighterBuilder::order, op -> op.scoreOrdered() ? Order.SCORE : Order.NONE);
            assertEquals(fieldBuilder.fragmentOffset, fieldOptions.fragmentOffset());
            if (fieldBuilder.matchedFields != null) {
                String[] copy = Arrays.copyOf(fieldBuilder.matchedFields, fieldBuilder.matchedFields.length);
                Arrays.sort(copy);
                assertArrayEquals(copy, new TreeSet<>(fieldOptions.matchedFields()).toArray(new String[fieldOptions.matchedFields().size()]));
            } else {
                assertNull(fieldOptions.matchedFields());
            }
            Query expectedValue = null;
            if (fieldBuilder.highlightQuery != null) {
                expectedValue = QueryBuilder.rewriteQuery(fieldBuilder.highlightQuery, mockShardContext).toQuery(mockShardContext);
            } else if (highlightBuilder.highlightQuery != null) {
                expectedValue = QueryBuilder.rewriteQuery(highlightBuilder.highlightQuery, mockShardContext).toQuery(mockShardContext);
            }
            assertEquals(expectedValue, fieldOptions.highlightQuery());
        }
    }
}

Example 47 with QueryShardContext

use of org.elasticsearch.index.query.QueryShardContext in project elasticsearch by elastic.

the class MetaDataCreateIndexService method onlyCreateIndex.

private void onlyCreateIndex(final CreateIndexClusterStateUpdateRequest request, final ActionListener<ClusterStateUpdateResponse> listener) {
    Settings.Builder updatedSettingsBuilder = Settings.builder();
    updatedSettingsBuilder.put(request.settings()).normalizePrefix(IndexMetaData.INDEX_SETTING_PREFIX);
    indexScopedSettings.validate(updatedSettingsBuilder);
    request.settings(updatedSettingsBuilder.build());
    clusterService.submitStateUpdateTask("create-index [" + request.index() + "], cause [" + request.cause() + "]", new AckedClusterStateUpdateTask<ClusterStateUpdateResponse>(Priority.URGENT, request, wrapPreservingContext(listener)) {

        @Override
        protected ClusterStateUpdateResponse newResponse(boolean acknowledged) {
            return new ClusterStateUpdateResponse(acknowledged);
        }

        @Override
        public ClusterState execute(ClusterState currentState) throws Exception {
            Index createdIndex = null;
            String removalExtraInfo = null;
            IndexRemovalReason removalReason = IndexRemovalReason.FAILURE;
            try {
                validate(request, currentState);
                for (Alias alias : request.aliases()) {
                    aliasValidator.validateAlias(alias, request.index(), currentState.metaData());
                }
                // we only find a template when its an API call (a new index)
                // find templates, highest order are better matching
                List<IndexTemplateMetaData> templates = findTemplates(request, currentState);
                Map<String, Custom> customs = new HashMap<>();
                // add the request mapping
                Map<String, Map<String, Object>> mappings = new HashMap<>();
                Map<String, AliasMetaData> templatesAliases = new HashMap<>();
                List<String> templateNames = new ArrayList<>();
                for (Map.Entry<String, String> entry : request.mappings().entrySet()) {
                    mappings.put(entry.getKey(), MapperService.parseMapping(xContentRegistry, entry.getValue()));
                }
                for (Map.Entry<String, Custom> entry : request.customs().entrySet()) {
                    customs.put(entry.getKey(), entry.getValue());
                }
                // apply templates, merging the mappings into the request mapping if exists
                for (IndexTemplateMetaData template : templates) {
                    templateNames.add(template.getName());
                    for (ObjectObjectCursor<String, CompressedXContent> cursor : template.mappings()) {
                        String mappingString = cursor.value.string();
                        if (mappings.containsKey(cursor.key)) {
                            XContentHelper.mergeDefaults(mappings.get(cursor.key), MapperService.parseMapping(xContentRegistry, mappingString));
                        } else {
                            mappings.put(cursor.key, MapperService.parseMapping(xContentRegistry, mappingString));
                        }
                    }
                    // handle custom
                    for (ObjectObjectCursor<String, Custom> cursor : template.customs()) {
                        String type = cursor.key;
                        IndexMetaData.Custom custom = cursor.value;
                        IndexMetaData.Custom existing = customs.get(type);
                        if (existing == null) {
                            customs.put(type, custom);
                        } else {
                            IndexMetaData.Custom merged = existing.mergeWith(custom);
                            customs.put(type, merged);
                        }
                    }
                    //handle aliases
                    for (ObjectObjectCursor<String, AliasMetaData> cursor : template.aliases()) {
                        AliasMetaData aliasMetaData = cursor.value;
                        // ignore this one taken from the index template
                        if (request.aliases().contains(new Alias(aliasMetaData.alias()))) {
                            continue;
                        }
                        //if an alias with same name was already processed, ignore this one
                        if (templatesAliases.containsKey(cursor.key)) {
                            continue;
                        }
                        //Allow templatesAliases to be templated by replacing a token with the name of the index that we are applying it to
                        if (aliasMetaData.alias().contains("{index}")) {
                            String templatedAlias = aliasMetaData.alias().replace("{index}", request.index());
                            aliasMetaData = AliasMetaData.newAliasMetaData(aliasMetaData, templatedAlias);
                        }
                        aliasValidator.validateAliasMetaData(aliasMetaData, request.index(), currentState.metaData());
                        templatesAliases.put(aliasMetaData.alias(), aliasMetaData);
                    }
                }
                Settings.Builder indexSettingsBuilder = Settings.builder();
                // apply templates, here, in reverse order, since first ones are better matching
                for (int i = templates.size() - 1; i >= 0; i--) {
                    indexSettingsBuilder.put(templates.get(i).settings());
                }
                // now, put the request settings, so they override templates
                indexSettingsBuilder.put(request.settings());
                if (indexSettingsBuilder.get(SETTING_NUMBER_OF_SHARDS) == null) {
                    indexSettingsBuilder.put(SETTING_NUMBER_OF_SHARDS, settings.getAsInt(SETTING_NUMBER_OF_SHARDS, 5));
                }
                if (indexSettingsBuilder.get(SETTING_NUMBER_OF_REPLICAS) == null) {
                    indexSettingsBuilder.put(SETTING_NUMBER_OF_REPLICAS, settings.getAsInt(SETTING_NUMBER_OF_REPLICAS, 1));
                }
                if (settings.get(SETTING_AUTO_EXPAND_REPLICAS) != null && indexSettingsBuilder.get(SETTING_AUTO_EXPAND_REPLICAS) == null) {
                    indexSettingsBuilder.put(SETTING_AUTO_EXPAND_REPLICAS, settings.get(SETTING_AUTO_EXPAND_REPLICAS));
                }
                if (indexSettingsBuilder.get(SETTING_VERSION_CREATED) == null) {
                    DiscoveryNodes nodes = currentState.nodes();
                    final Version createdVersion = Version.min(Version.CURRENT, nodes.getSmallestNonClientNodeVersion());
                    indexSettingsBuilder.put(SETTING_VERSION_CREATED, createdVersion);
                }
                if (indexSettingsBuilder.get(SETTING_CREATION_DATE) == null) {
                    indexSettingsBuilder.put(SETTING_CREATION_DATE, new DateTime(DateTimeZone.UTC).getMillis());
                }
                indexSettingsBuilder.put(IndexMetaData.SETTING_INDEX_PROVIDED_NAME, request.getProvidedName());
                indexSettingsBuilder.put(SETTING_INDEX_UUID, UUIDs.randomBase64UUID());
                final Index shrinkFromIndex = request.shrinkFrom();
                int routingNumShards = IndexMetaData.INDEX_NUMBER_OF_SHARDS_SETTING.get(indexSettingsBuilder.build());
                ;
                if (shrinkFromIndex != null) {
                    prepareShrinkIndexSettings(currentState, mappings.keySet(), indexSettingsBuilder, shrinkFromIndex, request.index());
                    IndexMetaData sourceMetaData = currentState.metaData().getIndexSafe(shrinkFromIndex);
                    routingNumShards = sourceMetaData.getRoutingNumShards();
                }
                Settings actualIndexSettings = indexSettingsBuilder.build();
                IndexMetaData.Builder tmpImdBuilder = IndexMetaData.builder(request.index()).setRoutingNumShards(routingNumShards);
                // Set up everything, now locally create the index to see that things are ok, and apply
                final IndexMetaData tmpImd = tmpImdBuilder.settings(actualIndexSettings).build();
                ActiveShardCount waitForActiveShards = request.waitForActiveShards();
                if (waitForActiveShards == ActiveShardCount.DEFAULT) {
                    waitForActiveShards = tmpImd.getWaitForActiveShards();
                }
                if (waitForActiveShards.validate(tmpImd.getNumberOfReplicas()) == false) {
                    throw new IllegalArgumentException("invalid wait_for_active_shards[" + request.waitForActiveShards() + "]: cannot be greater than number of shard copies [" + (tmpImd.getNumberOfReplicas() + 1) + "]");
                }
                // create the index here (on the master) to validate it can be created, as well as adding the mapping
                final IndexService indexService = indicesService.createIndex(tmpImd, Collections.emptyList(), shardId -> {
                });
                createdIndex = indexService.index();
                // now add the mappings
                MapperService mapperService = indexService.mapperService();
                try {
                    mapperService.merge(mappings, MergeReason.MAPPING_UPDATE, request.updateAllTypes());
                } catch (Exception e) {
                    removalExtraInfo = "failed on parsing default mapping/mappings on index creation";
                    throw e;
                }
                // the context is only used for validation so it's fine to pass fake values for the shard id and the current
                // timestamp
                final QueryShardContext queryShardContext = indexService.newQueryShardContext(0, null, () -> 0L);
                for (Alias alias : request.aliases()) {
                    if (Strings.hasLength(alias.filter())) {
                        aliasValidator.validateAliasFilter(alias.name(), alias.filter(), queryShardContext, xContentRegistry);
                    }
                }
                for (AliasMetaData aliasMetaData : templatesAliases.values()) {
                    if (aliasMetaData.filter() != null) {
                        aliasValidator.validateAliasFilter(aliasMetaData.alias(), aliasMetaData.filter().uncompressed(), queryShardContext, xContentRegistry);
                    }
                }
                // now, update the mappings with the actual source
                Map<String, MappingMetaData> mappingsMetaData = new HashMap<>();
                for (DocumentMapper mapper : mapperService.docMappers(true)) {
                    MappingMetaData mappingMd = new MappingMetaData(mapper);
                    mappingsMetaData.put(mapper.type(), mappingMd);
                }
                final IndexMetaData.Builder indexMetaDataBuilder = IndexMetaData.builder(request.index()).settings(actualIndexSettings).setRoutingNumShards(routingNumShards);
                for (MappingMetaData mappingMd : mappingsMetaData.values()) {
                    indexMetaDataBuilder.putMapping(mappingMd);
                }
                for (AliasMetaData aliasMetaData : templatesAliases.values()) {
                    indexMetaDataBuilder.putAlias(aliasMetaData);
                }
                for (Alias alias : request.aliases()) {
                    AliasMetaData aliasMetaData = AliasMetaData.builder(alias.name()).filter(alias.filter()).indexRouting(alias.indexRouting()).searchRouting(alias.searchRouting()).build();
                    indexMetaDataBuilder.putAlias(aliasMetaData);
                }
                for (Map.Entry<String, Custom> customEntry : customs.entrySet()) {
                    indexMetaDataBuilder.putCustom(customEntry.getKey(), customEntry.getValue());
                }
                indexMetaDataBuilder.state(request.state());
                final IndexMetaData indexMetaData;
                try {
                    indexMetaData = indexMetaDataBuilder.build();
                } catch (Exception e) {
                    removalExtraInfo = "failed to build index metadata";
                    throw e;
                }
                indexService.getIndexEventListener().beforeIndexAddedToCluster(indexMetaData.getIndex(), indexMetaData.getSettings());
                MetaData newMetaData = MetaData.builder(currentState.metaData()).put(indexMetaData, false).build();
                String maybeShadowIndicator = indexMetaData.isIndexUsingShadowReplicas() ? "s" : "";
                logger.info("[{}] creating index, cause [{}], templates {}, shards [{}]/[{}{}], mappings {}", request.index(), request.cause(), templateNames, indexMetaData.getNumberOfShards(), indexMetaData.getNumberOfReplicas(), maybeShadowIndicator, mappings.keySet());
                ClusterBlocks.Builder blocks = ClusterBlocks.builder().blocks(currentState.blocks());
                if (!request.blocks().isEmpty()) {
                    for (ClusterBlock block : request.blocks()) {
                        blocks.addIndexBlock(request.index(), block);
                    }
                }
                blocks.updateBlocks(indexMetaData);
                ClusterState updatedState = ClusterState.builder(currentState).blocks(blocks).metaData(newMetaData).build();
                if (request.state() == State.OPEN) {
                    RoutingTable.Builder routingTableBuilder = RoutingTable.builder(updatedState.routingTable()).addAsNew(updatedState.metaData().index(request.index()));
                    updatedState = allocationService.reroute(ClusterState.builder(updatedState).routingTable(routingTableBuilder.build()).build(), "index [" + request.index() + "] created");
                }
                removalExtraInfo = "cleaning up after validating index on master";
                removalReason = IndexRemovalReason.NO_LONGER_ASSIGNED;
                return updatedState;
            } finally {
                if (createdIndex != null) {
                    // Index was already partially created - need to clean up
                    indicesService.removeIndex(createdIndex, removalReason, removalExtraInfo);
                }
            }
        }

        @Override
        public void onFailure(String source, Exception e) {
            if (e instanceof ResourceAlreadyExistsException) {
                logger.trace((Supplier<?>) () -> new ParameterizedMessage("[{}] failed to create", request.index()), e);
            } else {
                logger.debug((Supplier<?>) () -> new ParameterizedMessage("[{}] failed to create", request.index()), e);
            }
            super.onFailure(source, e);
        }
    });
}

Example 48 with QueryShardContext

use of org.elasticsearch.index.query.QueryShardContext in project elasticsearch by elastic.

the class SearchService method parseSource.

private void parseSource(DefaultSearchContext context, SearchSourceBuilder source) throws SearchContextException {
    // nothing to parse...
    if (source == null) {
        return;
    }
    QueryShardContext queryShardContext = context.getQueryShardContext();
    context.from(source.from());
    context.size(source.size());
    Map<String, InnerHitBuilder> innerHitBuilders = new HashMap<>();
    if (source.query() != null) {
        InnerHitBuilder.extractInnerHits(source.query(), innerHitBuilders);
        context.parsedQuery(queryShardContext.toQuery(source.query()));
    }
    if (source.postFilter() != null) {
        InnerHitBuilder.extractInnerHits(source.postFilter(), innerHitBuilders);
        context.parsedPostFilter(queryShardContext.toQuery(source.postFilter()));
    }
    if (innerHitBuilders.size() > 0) {
        for (Map.Entry<String, InnerHitBuilder> entry : innerHitBuilders.entrySet()) {
            try {
                entry.getValue().build(context, context.innerHits());
            } catch (IOException e) {
                throw new SearchContextException(context, "failed to build inner_hits", e);
            }
        }
    }
    if (source.sorts() != null) {
        try {
            Optional<SortAndFormats> optionalSort = SortBuilder.buildSort(source.sorts(), context.getQueryShardContext());
            if (optionalSort.isPresent()) {
                context.sort(optionalSort.get());
            }
        } catch (IOException e) {
            throw new SearchContextException(context, "failed to create sort elements", e);
        }
    }
    context.trackScores(source.trackScores());
    if (source.minScore() != null) {
        context.minimumScore(source.minScore());
    }
    if (source.profile()) {
        context.setProfilers(new Profilers(context.searcher()));
    }
    if (source.timeout() != null) {
        context.timeout(source.timeout());
    }
    context.terminateAfter(source.terminateAfter());
    if (source.aggregations() != null) {
        try {
            AggregatorFactories factories = source.aggregations().build(context, null);
            factories.validate();
            context.aggregations(new SearchContextAggregations(factories));
        } catch (IOException e) {
            throw new AggregationInitializationException("Failed to create aggregators", e);
        }
    }
    if (source.suggest() != null) {
        try {
            context.suggest(source.suggest().build(queryShardContext));
        } catch (IOException e) {
            throw new SearchContextException(context, "failed to create SuggestionSearchContext", e);
        }
    }
    if (source.rescores() != null) {
        try {
            for (RescoreBuilder<?> rescore : source.rescores()) {
                context.addRescore(rescore.build(queryShardContext));
            }
        } catch (IOException e) {
            throw new SearchContextException(context, "failed to create RescoreSearchContext", e);
        }
    }
    if (source.explain() != null) {
        context.explain(source.explain());
    }
    if (source.fetchSource() != null) {
        context.fetchSourceContext(source.fetchSource());
    }
    if (source.docValueFields() != null) {
        context.docValueFieldsContext(new DocValueFieldsContext(source.docValueFields()));
    }
    if (source.highlighter() != null) {
        HighlightBuilder highlightBuilder = source.highlighter();
        try {
            context.highlight(highlightBuilder.build(queryShardContext));
        } catch (IOException e) {
            throw new SearchContextException(context, "failed to create SearchContextHighlighter", e);
        }
    }
    if (source.scriptFields() != null) {
        for (org.elasticsearch.search.builder.SearchSourceBuilder.ScriptField field : source.scriptFields()) {
            SearchScript searchScript = scriptService.search(context.lookup(), field.script(), ScriptContext.Standard.SEARCH);
            context.scriptFields().add(new ScriptField(field.fieldName(), searchScript, field.ignoreFailure()));
        }
    }
    if (source.ext() != null) {
        for (SearchExtBuilder searchExtBuilder : source.ext()) {
            context.addSearchExt(searchExtBuilder);
        }
    }
    if (source.version() != null) {
        context.version(source.version());
    }
    if (source.stats() != null) {
        context.groupStats(source.stats());
    }
    if (source.searchAfter() != null && source.searchAfter().length > 0) {
        if (context.scrollContext() != null) {
            throw new SearchContextException(context, "`search_after` cannot be used in a scroll context.");
        }
        if (context.from() > 0) {
            throw new SearchContextException(context, "`from` parameter must be set to 0 when `search_after` is used.");
        }
        FieldDoc fieldDoc = SearchAfterBuilder.buildFieldDoc(context.sort(), source.searchAfter());
        context.searchAfter(fieldDoc);
    }
    if (source.slice() != null) {
        if (context.scrollContext() == null) {
            throw new SearchContextException(context, "`slice` cannot be used outside of a scroll context");
        }
        context.sliceBuilder(source.slice());
    }
    if (source.storedFields() != null) {
        if (source.storedFields().fetchFields() == false) {
            if (context.version()) {
                throw new SearchContextException(context, "`stored_fields` cannot be disabled if version is requested");
            }
            if (context.sourceRequested()) {
                throw new SearchContextException(context, "`stored_fields` cannot be disabled if _source is requested");
            }
        }
        context.storedFieldsContext(source.storedFields());
    }
    if (source.collapse() != null) {
        final CollapseContext collapseContext = source.collapse().build(context);
        context.collapse(collapseContext);
    }
}

Example 49 with QueryShardContext

use of org.elasticsearch.index.query.QueryShardContext in project elasticsearch by elastic.

the class SearchService method createSearchContext.

public DefaultSearchContext createSearchContext(ShardSearchRequest request, TimeValue timeout, @Nullable Engine.Searcher searcher) throws IOException {
    IndexService indexService = indicesService.indexServiceSafe(request.shardId().getIndex());
    IndexShard indexShard = indexService.getShard(request.shardId().getId());
    SearchShardTarget shardTarget = new SearchShardTarget(clusterService.localNode().getId(), indexShard.shardId());
    Engine.Searcher engineSearcher = searcher == null ? indexShard.acquireSearcher("search") : searcher;
    final DefaultSearchContext searchContext = new DefaultSearchContext(idGenerator.incrementAndGet(), request, shardTarget, engineSearcher, indexService, indexShard, bigArrays, threadPool.estimatedTimeInMillisCounter(), timeout, fetchPhase);
    boolean success = false;
    try {
        // we clone the query shard context here just for rewriting otherwise we
        // might end up with incorrect state since we are using now() or script services
        // during rewrite and normalized / evaluate templates etc.
        request.rewrite(new QueryShardContext(searchContext.getQueryShardContext()));
        assert searchContext.getQueryShardContext().isCachable();
        success = true;
    } finally {
        if (success == false) {
            IOUtils.closeWhileHandlingException(searchContext);
        }
    }
    return searchContext;
}