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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.solr.search.facet;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util.TestUtil;
import org.apache.solr.SolrTestCaseJ4;
import org.apache.solr.SolrTestUtil;
import org.apache.solr.client.solrj.SolrClient;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.embedded.JettySolrRunner;
import org.apache.solr.client.solrj.impl.CloudHttp2SolrClient;
import org.apache.solr.client.solrj.impl.Http2SolrClient;
import org.apache.solr.client.solrj.request.CollectionAdminRequest;
import org.apache.solr.client.solrj.request.QueryRequest;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.cloud.SolrCloudTestCase;
import org.apache.solr.cloud.TestCloudPivotFacet;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.SolrInputDocument;
import org.apache.solr.common.params.ModifiableSolrParams;
import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.NamedList;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.lang.invoke.MethodHandles;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.concurrent.atomic.AtomicInteger;
/**
* <p>
* Tests randomized JSON Facets, sometimes using query 'join' domain transfers and/or domain 'filter' options
* </p>
* <p>
* The results of each facet constraint count will be compared with a verification query using an equivalent filter
* </p>
*
* @see TestCloudPivotFacet
*/
public class TestCloudJSONFacetJoinDomain extends SolrCloudTestCase {
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private static final String DEBUG_LABEL = MethodHandles.lookup().lookupClass().getName();
private static final String COLLECTION_NAME = DEBUG_LABEL + "_collection";
private static final int DEFAULT_LIMIT = FacetField.DEFAULT_FACET_LIMIT;
private static final int MAX_FIELD_NUM = 15;
private static final int UNIQUE_FIELD_VALS = 20;
// NOTE: set to 'true' to see if refinement testing is adequate (should get fails occasionally)
private static final boolean FORCE_DISABLE_REFINEMENT = false;
/** Multivalued string field suffixes that can be randomized for testing diff facet/join code paths */
private static final String[] STR_FIELD_SUFFIXES = new String[] { "_ss", "_sds", "_sdsS" };
/** Multivalued int field suffixes that can be randomized for testing diff facet/join code paths */
private static final String[] INT_FIELD_SUFFIXES = new String[] { "_is", "_ids", "_idsS" };
/** A basic client for operations at the cloud level, default collection will be set */
private static CloudHttp2SolrClient CLOUD_CLIENT;
/** One client per node */
private static final ArrayList<Http2SolrClient> CLIENTS = new ArrayList<>(5);
@BeforeClass
public static void beforeTestCloudJSONFacetJoinDomain() throws Exception {
// sanity check constants
assertTrue("bad test constants: some suffixes will never be tested",
(STR_FIELD_SUFFIXES.length < MAX_FIELD_NUM) && (INT_FIELD_SUFFIXES.length < MAX_FIELD_NUM));
// we need DVs on point fields to compute stats & facets
if (Boolean.getBoolean(SolrTestCaseJ4.NUMERIC_POINTS_SYSPROP)) System.setProperty(SolrTestCaseJ4.NUMERIC_DOCVALUES_SYSPROP,"true");
// multi replicas should not matter...
final int repFactor;
// ... but we definitely want to test multiple shards
final int numShards;
if (TEST_NIGHTLY) {
numShards = TestUtil.nextInt(random(), 1, (LuceneTestCase.usually() ? 2 :3));
repFactor = LuceneTestCase.usually() ? 1 : 2;
} else {
numShards = 1;
repFactor = 1;
}
final int numNodes = (numShards * repFactor);
final String configName = DEBUG_LABEL + "_config-set";
final Path configDir = Paths.get(SolrTestUtil.TEST_HOME(), "collection1", "conf");
configureCluster(numNodes).addConfig(configName, configDir).configure();
Map<String, String> collectionProperties = new LinkedHashMap<>();
collectionProperties.put("config", "solrconfig-tlog.xml");
collectionProperties.put("schema", "schema_latest.xml");
CollectionAdminRequest.createCollection(COLLECTION_NAME, configName, numShards, repFactor)
.setProperties(collectionProperties)
.process(cluster.getSolrClient());
CLOUD_CLIENT = cluster.getSolrClient();
CLOUD_CLIENT.setDefaultCollection(COLLECTION_NAME);
for (JettySolrRunner jetty : cluster.getJettySolrRunners()) {
CLIENTS.add(SolrTestCaseJ4.getHttpSolrClient(jetty.getBaseUrl() + "/" + COLLECTION_NAME + "/"));
}
final int numDocs = LuceneTestCase.atLeast(TEST_NIGHTLY ? 100 : 25);
for (int id = 0; id < numDocs; id++) {
SolrInputDocument doc = SolrTestCaseJ4.sdoc("id", ""+id);
for (int fieldNum = 0; fieldNum < MAX_FIELD_NUM; fieldNum++) {
// NOTE: some docs may have no value in a field
final int numValsThisDoc = TestUtil.nextInt(random(), 0, (LuceneTestCase.usually() ? 3 : 6));
for (int v = 0; v < numValsThisDoc; v++) {
final String fieldValue = randFieldValue(fieldNum);
// for each fieldNum, there are actaully two fields: one string, and one integer
doc.addField(field(STR_FIELD_SUFFIXES, fieldNum), fieldValue);
doc.addField(field(INT_FIELD_SUFFIXES, fieldNum), fieldValue);
}
}
CLOUD_CLIENT.add(doc);
if (random().nextInt(100) < 1) {
CLOUD_CLIENT.commit(); // commit 1% of the time to create new segments
}
if (random().nextInt(100) < 5) {
CLOUD_CLIENT.add(doc); // duplicate the doc 5% of the time to create deleted docs
}
}
CLOUD_CLIENT.commit();
}
@AfterClass
public static void afterTestCloudJSONFacetJoinDomain() throws Exception {
shutdownCluster();
}
/**
* Given a (random) number, and a (static) array of possible suffixes returns a consistent field name that
* uses that number and one of hte specified suffixes in it's name.
*
* @see #STR_FIELD_SUFFIXES
* @see #INT_FIELD_SUFFIXES
* @see #MAX_FIELD_NUM
* @see #randFieldValue
*/
private static String field(final String[] suffixes, final int fieldNum) {
assert fieldNum < MAX_FIELD_NUM;
final String suffix = suffixes[fieldNum % suffixes.length];
return "field_" + fieldNum + suffix;
}
private static String strfield(final int fieldNum) {
return field(STR_FIELD_SUFFIXES, fieldNum);
}
private static String intfield(final int fieldNum) {
return field(INT_FIELD_SUFFIXES, fieldNum);
}
/**
* Given a (random) field number, returns a random (integer based) value for that field.
* NOTE: The number of unique values in each field is constant acording to {@link #UNIQUE_FIELD_VALS}
* but the precise <em>range</em> of values will vary for each unique field number, such that cross field joins
* will match fewer documents based on how far apart the field numbers are.
*
* @see #UNIQUE_FIELD_VALS
* @see #field
*/
private static String randFieldValue(final int fieldNum) {
return "" + (fieldNum + TestUtil.nextInt(random(), 1, UNIQUE_FIELD_VALS));
}
@AfterClass
private static void afterClass() throws Exception {
for (Http2SolrClient client : CLIENTS) {
client.close();
}
CLIENTS.clear();
CLOUD_CLIENT = null;
}
/** Sanity check that malformed requests produce errors */
public void testMalformedGivesError() throws Exception {
SolrTestCaseJ4.ignoreException(".*'join' domain change.*");
for (String join : Arrays.asList("bogus",
"{ }",
"{ from:null, to:foo_s }",
"{ from:foo_s }",
"{ from:foo_s, to:foo_s, bogus:'what what?' }",
"{ to:foo_s, bogus:'what what?' }")) {
SolrException e = LuceneTestCase.expectThrows(SolrException.class, () -> {
final SolrParams req = params("q", "*:*", "json.facet",
"{ x : { type:terms, field:x_s, domain: { join:"+join+" } } }");
final NamedList trash = getRandClient(random()).request(new QueryRequest(req));
});
assertEquals(join + " -> " + e, SolrException.ErrorCode.BAD_REQUEST.code, e.code());
assertTrue(join + " -> " + e, e.getMessage().contains("'join' domain change"));
}
}
public void testSanityCheckDomainMethods() throws Exception {
{
final JoinDomain empty = new JoinDomain(null, null, null);
assertEquals(null, empty.toJSONFacetParamValue());
final SolrParams out = empty.applyDomainToQuery("safe_key", params("q","qqq"));
assertNotNull(out);
assertEquals(null, out.get("safe_key"));
assertEquals("qqq", out.get("q"));
}
{
final JoinDomain join = new JoinDomain("xxx", "yyy", null);
assertEquals("domain:{join:{from:xxx,to:yyy}}", join.toJSONFacetParamValue().toString());
final SolrParams out = join.applyDomainToQuery("safe_key", params("q","qqq"));
assertNotNull(out);
assertEquals("qqq", out.get("safe_key"));
assertEquals("{!join from=xxx to=yyy v=$safe_key}", out.get("q"));
}
{
final JoinDomain filter = new JoinDomain(null, null, "zzz");
assertEquals("domain:{filter:'zzz'}", filter.toJSONFacetParamValue().toString());
final SolrParams out = filter.applyDomainToQuery("safe_key", params("q","qqq"));
assertNotNull(out);
assertEquals(null, out.get("safe_key"));
assertEquals("zzz AND qqq", out.get("q"));
}
{
final JoinDomain both = new JoinDomain("xxx", "yyy", "zzz");
assertEquals("domain:{join:{from:xxx,to:yyy},filter:'zzz'}", both.toJSONFacetParamValue().toString());
final SolrParams out = both.applyDomainToQuery("safe_key", params("q","qqq"));
assertNotNull(out);
assertEquals("qqq", out.get("safe_key"));
assertEquals("zzz AND {!join from=xxx to=yyy v=$safe_key}", out.get("q"));
}
}
/**
* Test some small, hand crafted, but non-trivial queries that are
* easier to trace/debug then a pure random monstrosity.
* (ie: if something obvious gets broken, this test may fail faster and in a more obvious way then testRandom)
*/
@LuceneTestCase.Nightly // needs larger docs counts and such
public void testBespoke() throws Exception {
{ // sanity check our test methods can handle a query matching no docs
Map<String,TermFacet> facets = new LinkedHashMap<>();
TermFacet top = new TermFacet(strfield(9), new JoinDomain(strfield(5), strfield(9), strfield(9)+":[* TO *]"));
top.subFacets.put("sub", new TermFacet(strfield(11), new JoinDomain(strfield(8), strfield(8), null)));
facets.put("empty_top", top);
final AtomicInteger maxBuckets = new AtomicInteger(UNIQUE_FIELD_VALS);
assertFacetCountsAreCorrect(maxBuckets, facets, strfield(7) + ":bogus");
assertEquals("Empty search result shouldn't have found a single bucket",
UNIQUE_FIELD_VALS, maxBuckets.get());
}
{ // sanity check our test methods can handle a query where a facet filter prevents any doc from having terms
Map<String,TermFacet> facets = new LinkedHashMap<>();
TermFacet top = new TermFacet(strfield(9), new JoinDomain(null, null, "-*:*"));
top.subFacets.put("sub", new TermFacet(strfield(11), new JoinDomain(strfield(8), strfield(8), null)));
facets.put("filtered_top", top);
final AtomicInteger maxBuckets = new AtomicInteger(UNIQUE_FIELD_VALS);
assertFacetCountsAreCorrect(maxBuckets, facets, "*:*");
assertEquals("Empty join filter shouldn't have found a single bucket",
UNIQUE_FIELD_VALS, maxBuckets.get());
}
{ // sanity check our test methods can handle a query where a facet filter prevents any doc from having sub-terms
Map<String,TermFacet> facets = new LinkedHashMap<>();
TermFacet top = new TermFacet(strfield(9), new JoinDomain(strfield(8), strfield(8), null));
top.subFacets.put("sub", new TermFacet(strfield(11), new JoinDomain(null, null, "-*:*")));
facets.put("filtered_top", top);
final AtomicInteger maxBuckets = new AtomicInteger(UNIQUE_FIELD_VALS);
assertFacetCountsAreCorrect(maxBuckets, facets, "*:*");
assertTrue("Didn't check a single bucket???", maxBuckets.get() < UNIQUE_FIELD_VALS);
}
{ // strings
Map<String,TermFacet> facets = new LinkedHashMap<>();
TermFacet top = new TermFacet(strfield(9), new JoinDomain(strfield(5), strfield(9), strfield(9)+":[* TO *]"));
top.subFacets.put("facet_5", new TermFacet(strfield(11), new JoinDomain(strfield(8), strfield(8), null)));
facets.put("facet_4", top);
final AtomicInteger maxBuckets = new AtomicInteger(UNIQUE_FIELD_VALS * UNIQUE_FIELD_VALS);
assertFacetCountsAreCorrect(maxBuckets, facets, "("+strfield(7)+":16 OR "+strfield(9)+":16 OR "+strfield(6)+":19 OR "+strfield(0)+":11)");
assertTrue("Didn't check a single bucket???", maxBuckets.get() < UNIQUE_FIELD_VALS * UNIQUE_FIELD_VALS);
}
{ // ints
Map<String,TermFacet> facets = new LinkedHashMap<>();
TermFacet top = new TermFacet(intfield(9), new JoinDomain(intfield(5), intfield(9), null));
facets.put("top", top);
final AtomicInteger maxBuckets = new AtomicInteger(UNIQUE_FIELD_VALS * UNIQUE_FIELD_VALS);
assertFacetCountsAreCorrect(maxBuckets, facets, "("+intfield(7)+":16 OR "+intfield(3)+":13)");
// seems to happen sometimes...
// assertTrue("Didn't check a single bucket???", maxBuckets.get() < UNIQUE_FIELD_VALS * UNIQUE_FIELD_VALS);
}
{ // some domains with filter only, no actual join
Map<String,TermFacet> facets = new LinkedHashMap<>();
TermFacet top = new TermFacet(strfield(9), new JoinDomain(null, null, strfield(9)+":[* TO *]"));
top.subFacets.put("facet_5", new TermFacet(strfield(11), new JoinDomain(null, null, strfield(3)+":[* TO 5]")));
facets.put("top", top);
final AtomicInteger maxBuckets = new AtomicInteger(UNIQUE_FIELD_VALS * UNIQUE_FIELD_VALS);
assertFacetCountsAreCorrect(maxBuckets, facets, "("+strfield(7)+":16 OR "+strfield(9)+":16 OR "+strfield(6)+":19 OR "+strfield(0)+":11)");
assertTrue("Didn't check a single bucket???", maxBuckets.get() < UNIQUE_FIELD_VALS * UNIQUE_FIELD_VALS);
}
{ // low limits, explicit refinement
Map<String,TermFacet> facets = new LinkedHashMap<>();
TermFacet top = new TermFacet(strfield(9),
new JoinDomain(strfield(5), strfield(9), strfield(9)+":[* TO *]"),
5, 0, true);
top.subFacets.put("facet_5", new TermFacet(strfield(11),
new JoinDomain(strfield(8), strfield(8), null),
10, 0, true));
facets.put("facet_4", top);
final AtomicInteger maxBuckets = new AtomicInteger(5 * 10);
assertFacetCountsAreCorrect(maxBuckets, facets, "("+strfield(7)+":6 OR "+strfield(9)+":6 OR "+strfield(6)+":19 OR "+strfield(0)+":11)");
assertTrue("Didn't check a single bucket???", maxBuckets.get() < 5 * 10);
}
{ // low limit, high overrequest
Map<String,TermFacet> facets = new LinkedHashMap<>();
TermFacet top = new TermFacet(strfield(9),
new JoinDomain(strfield(5), strfield(9), strfield(9)+":[* TO *]"),
5, UNIQUE_FIELD_VALS + 10, false);
top.subFacets.put("facet_5", new TermFacet(strfield(11),
new JoinDomain(strfield(8), strfield(8), null),
10, UNIQUE_FIELD_VALS + 10, false));
facets.put("facet_4", top);
final AtomicInteger maxBuckets = new AtomicInteger(5 * 10);
assertFacetCountsAreCorrect(maxBuckets, facets, "("+strfield(7)+":6 OR "+strfield(9)+":6 OR "+strfield(6)+":19 OR "+strfield(0)+":11)");
assertTrue("Didn't check a single bucket???", maxBuckets.get() < 5 * 10);
}
{ // low limit, low overrequest, explicit refinement
Map<String,TermFacet> facets = new LinkedHashMap<>();
TermFacet top = new TermFacet(strfield(9),
new JoinDomain(strfield(5), strfield(9), strfield(9)+":[* TO *]"),
5, 7, true);
top.subFacets.put("facet_5", new TermFacet(strfield(11),
new JoinDomain(strfield(8), strfield(8), null),
10, 7, true));
facets.put("facet_4", top);
final AtomicInteger maxBuckets = new AtomicInteger(5 * 10);
assertFacetCountsAreCorrect(maxBuckets, facets, "("+strfield(7)+":6 OR "+strfield(9)+":6 OR "+strfield(6)+":19 OR "+strfield(0)+":11)");
assertTrue("Didn't check a single bucket???", maxBuckets.get() < 5 * 10);
}
}
public void testTheTestRandomRefineParam() {
// sanity check that randomRefineParam never violates isRefinementNeeded
// (should be imposisble ... unless someone changes/breaks the randomization logic in the future)
final int numIters = LuceneTestCase.atLeast(TEST_NIGHTLY ? 100 : 10);
for (int iter = 0; iter < numIters; iter++) {
final Integer limit = TermFacet.randomLimitParam(random());
final Integer overrequest = TermFacet.randomOverrequestParam(random());
final Boolean refine = TermFacet.randomRefineParam(random(), limit, overrequest);
if (TermFacet.isRefinementNeeded(limit, overrequest)) {
assertEquals("limit: " + limit + ", overrequest: " + overrequest + ", refine: " + refine,
Boolean.TRUE, refine);
}
}
}
public void testTheTestTermFacetShouldFreakOutOnBadRefineOptions() {
LuceneTestCase.expectThrows(AssertionError.class, () -> {
final TermFacet bogus = new TermFacet("foo", null, 5, 0, false);
});
}
public void testRandom() throws Exception {
// we put a safety valve in place on the maximum number of buckets that we are willing to verify
// across *all* the queries that we do.
// that way if the randomized queries we build all have relatively small facets, so be it, but if
// we get a really big one early on, we can test as much as possible, skip other iterations.
//
// (deeply nested facets may contain more buckets then the max, but we won't *check* all of them)
final int maxBucketsAllowed = LuceneTestCase.atLeast(TEST_NIGHTLY ? 2000 : 200);
final AtomicInteger maxBucketsToCheck = new AtomicInteger(maxBucketsAllowed);
final int numIters = LuceneTestCase.atLeast(TEST_NIGHTLY ? 20 : 3);
for (int iter = 0; iter < numIters && 0 < maxBucketsToCheck.get(); iter++) {
assertFacetCountsAreCorrect(maxBucketsToCheck, TermFacet.buildRandomFacets(), buildRandomQuery());
}
assertTrue("Didn't check a single bucket???", maxBucketsToCheck.get() < maxBucketsAllowed);
}
/**
* Generates a random query string across the randomized fields/values in the index
*
* @see #randFieldValue
* @see #field
*/
private static String buildRandomQuery() {
if (0 == TestUtil.nextInt(random(), 0,10)) {
return "*:*";
}
final int numClauses = TestUtil.nextInt(random(), 3, 10);
List<String> clauses = new ArrayList<String>(numClauses);
for (int c = 0; c < numClauses; c++) {
final int fieldNum = random().nextInt(MAX_FIELD_NUM);
// keep queries simple, just use str fields - not point of test
clauses.add(strfield(fieldNum) + ":" + randFieldValue(fieldNum));
}
return "(" + String.join(" OR ", clauses) + ")";
}
/**
* Given a set of (potentially nested) term facets, and a base query string, asserts that
* the actual counts returned when executing that query with those facets match the expected results
* of filtering on the equivalent facet terms+domain
*/
private void assertFacetCountsAreCorrect(final AtomicInteger maxBucketsToCheck,
Map<String,TermFacet> expected,
final String query) throws SolrServerException, IOException {
final SolrParams baseParams = params("q", query, "rows","0");
final SolrParams facetParams = params("json.facet", ""+TermFacet.toJSONFacetParamValue(expected));
final SolrParams initParams = SolrParams.wrapAppended(facetParams, baseParams);
log.info("Doing full run: {}", initParams);
QueryResponse rsp = null;
// JSON Facets not (currently) available from QueryResponse...
NamedList topNamedList = null;
try {
rsp = (new QueryRequest(initParams)).process(getRandClient(random()));
assertNotNull(initParams + " is null rsp?", rsp);
topNamedList = rsp.getResponse();
assertNotNull(initParams + " is null topNamedList?", topNamedList);
} catch (Exception e) {
throw new RuntimeException("init query failed: " + initParams + ": " +
e.getMessage(), e);
}
try {
final NamedList facetResponse = (NamedList) topNamedList.get("facets");
assertNotNull("null facet results?", facetResponse);
assertEquals("numFound mismatch with top count?",
rsp.getResults().getNumFound(), ((Number)facetResponse.get("count")).longValue());
if (0 == rsp.getResults().getNumFound()) {
// when the query matches nothing, we should expect no top level facets
expected = Collections.emptyMap();
}
assertFacetCountsAreCorrect(maxBucketsToCheck, expected, baseParams, facetResponse);
} catch (AssertionError e) {
throw new AssertionError(initParams + " ===> " + topNamedList + " --> " + e.getMessage(), e);
} finally {
log.info("Ending full run");
}
}
/**
* Recursive Helper method that walks the actual facet response, comparing the counts to the expected output
* based on the equivalent filters generated from the original TermFacet.
*/
private void assertFacetCountsAreCorrect(final AtomicInteger maxBucketsToCheck,
final Map<String,TermFacet> expected,
final SolrParams baseParams,
final NamedList actualFacetResponse) throws SolrServerException, IOException {
for (Map.Entry<String,TermFacet> entry : expected.entrySet()) {
final String facetKey = entry.getKey();
final TermFacet facet = entry.getValue();
final NamedList results = (NamedList) actualFacetResponse.get(facetKey);
assertNotNull(facetKey + " key missing from: " + actualFacetResponse, results);
final List<NamedList> buckets = (List<NamedList>) results.get("buckets");
assertNotNull(facetKey + " has null buckets: " + actualFacetResponse, buckets);
if (buckets.isEmpty()) {
// should only happen if the baseParams query does not match any docs with our field X
final long docsWithField = getRandClient(random()).query
(facet.applyValueConstraintAndDomain(baseParams, facetKey, "[* TO *]")).getResults().getNumFound();
assertEquals(facetKey + " has no buckets, but docs in query exist with field: " + facet.field,
0, docsWithField);
}
for (NamedList bucket : buckets) {
final long count = ((Number) bucket.get("count")).longValue();
final String fieldVal = bucket.get("val").toString(); // int or stringified int
// change our query to filter on the fieldVal, and wrap in the facet domain (if any)
final SolrParams verifyParams = facet.applyValueConstraintAndDomain(baseParams, facetKey, fieldVal);
// check the count for this bucket
assertEquals(facetKey + ": " + verifyParams,
count, getRandClient(random()).query(verifyParams).getResults().getNumFound());
if (maxBucketsToCheck.decrementAndGet() <= 0) {
return;
}
// recursively check subFacets
if (! facet.subFacets.isEmpty()) {
assertFacetCountsAreCorrect(maxBucketsToCheck, facet.subFacets, verifyParams, bucket);
}
}
}
assertTrue("facets have unexpected keys left over: " + actualFacetResponse,
// should alwasy be a count, maybe a 'val' if we're a subfacet
(actualFacetResponse.size() == expected.size() + 1) ||
(actualFacetResponse.size() == expected.size() + 2));
}
/**
* Trivial data structure for modeling a simple terms facet that can be written out as a json.facet param.
*
* Doesn't do any string escaping or quoting, so don't use whitespace or reserved json characters
*/
private static final class TermFacet {
public final String field;
public final Map<String,TermFacet> subFacets = new LinkedHashMap<>();
public final JoinDomain domain; // may be null
public final Integer limit; // may be null
public final Integer overrequest; // may be null
public final Boolean refine; // may be null
/** Simplified constructor asks for limit = # unique vals */
public TermFacet(String field, JoinDomain domain) {
this(field, domain, UNIQUE_FIELD_VALS, 0, false);
}
public TermFacet(String field, JoinDomain domain, Integer limit, Integer overrequest, Boolean refine) {
assert null != field;
this.field = field;
this.domain = domain;
this.limit = limit;
this.overrequest = overrequest;
this.refine = refine;
if (isRefinementNeeded(limit, overrequest)) {
assertEquals("Invalid refine param based on limit & overrequest: " + this.toString(),
Boolean.TRUE, refine);
}
}
/**
* Returns new SolrParams that:
* <ul>
* <li>copy the original SolrParams</li>
* <li>modify/wrap the original "q" param to capture the domain change for this facet (if any)</li>
* <li>add a filter query against this field with the specified value</li>
* </ul>
*
* @see JoinDomain#applyDomainToQuery
*/
public SolrParams applyValueConstraintAndDomain(SolrParams orig, String facetKey, String facetVal) {
// first wrap our original query in the domain if there is one...
if (null != domain) {
orig = domain.applyDomainToQuery(facetKey + "_q", orig);
}
// then filter by the facet value we need to test...
final ModifiableSolrParams out = new ModifiableSolrParams(orig);
out.set("q", field + ":" + facetVal + " AND " + orig.get("q"));
return out;
}
/**
* recursively generates the <code>json.facet</code> param value to use for testing this facet
*/
private CharSequence toJSONFacetParamValue() {
final String limitStr = (null == limit) ? "" : (", limit:" + limit);
final String overrequestStr = (null == overrequest) ? "" : (", overrequest:" + overrequest);
final String refineStr = (null == refine) ? "" : ", refine:" + refine;
final StringBuilder sb = new StringBuilder("{ type:terms, field:" + field + limitStr + overrequestStr + refineStr);
if (! subFacets.isEmpty()) {
sb.append(", facet:");
sb.append(toJSONFacetParamValue(subFacets));
}
if (null != domain) {
CharSequence ds = domain.toJSONFacetParamValue();
if (null != ds) {
sb.append(", ").append(ds);
}
}
sb.append("}");
return sb;
}
/**
* Given a set of (possibly nested) facets, generates a suitable <code>json.facet</code> param value to
* use for testing them against in a solr request.
*/
public static CharSequence toJSONFacetParamValue(Map<String,TermFacet> facets) {
assert null != facets;
assert 0 < facets.size();
StringBuilder sb = new StringBuilder("{");
for (String key : facets.keySet()) {
sb.append(key).append(" : ").append(facets.get(key).toJSONFacetParamValue());
sb.append(" ,");
}
sb.setLength(sb.length() - 1);
sb.append("}");
return sb;
}
/**
* Factory method for generating some random (nested) facets.
*
* For simplicity, each facet will have a unique key name, regardless of it's depth under other facets
*
* @see JoinDomain
*/
public static Map<String,TermFacet> buildRandomFacets() {
// for simplicity, use a unique facet key regardless of depth - simplifies verification
AtomicInteger keyCounter = new AtomicInteger(0);
final int maxDepth = TestUtil.nextInt(random(), 0, (LuceneTestCase.usually() ? 2 : 3));
return buildRandomFacets(keyCounter, maxDepth);
}
/**
* picks a random value for the "limit" param, biased in favor of interesting test cases
*
* @return a number to specify in the request, or null to specify nothing (trigger default behavior)
* @see #UNIQUE_FIELD_VALS
*/
public static Integer randomLimitParam(Random r) {
final int limit = 1 + r.nextInt(UNIQUE_FIELD_VALS * 2);
if (limit >= UNIQUE_FIELD_VALS && r.nextBoolean()) {
return -1; // unlimited
} else if (limit == DEFAULT_LIMIT && r.nextBoolean()) {
return null; // sometimes, don't specify limit if it's the default
}
return limit;
}
/**
* picks a random value for the "overrequest" param, biased in favor of interesting test cases
*
* @return a number to specify in the request, or null to specify nothing (trigger default behavior)
* @see #UNIQUE_FIELD_VALS
*/
public static Integer randomOverrequestParam(Random r) {
switch(r.nextInt(10)) {
case 0:
case 1:
case 2:
case 3:
return 0; // 40% of the time, no overrequest to better stress refinement
case 4:
case 5:
return r.nextInt(UNIQUE_FIELD_VALS); // 20% ask for less them what's needed
case 6:
return r.nextInt(Integer.MAX_VALUE); // 10%: completley random value, statisticaly more then enough
default: break;
}
// else.... either leave param unspecified (or redundently specify the -1 default)
return r.nextBoolean() ? null : -1;
}
/**
* picks a random value for the "refine" param, that is garunteed to be suitable for
* the specified limit &amp; overrequest params.
*
* @return a value to specify in the request, or null to specify nothing (trigger default behavior)
* @see #randomLimitParam
* @see #randomOverrequestParam
* @see #UNIQUE_FIELD_VALS
*/
public static Boolean randomRefineParam(Random r, Integer limitParam, Integer overrequestParam) {
if (isRefinementNeeded(limitParam, overrequestParam)) {
return true;
}
// refinement is not required
if (0 == r.nextInt(10)) { // once in a while, turn on refinement even if it isn't needed.
return true;
}
// explicitly or implicitly indicate refinement is not needed
return r.nextBoolean() ? false : null;
}
/**
* Deterministicly identifies if the specified limit &amp; overrequest params <b>require</b>
* a "refine:true" param be used in the the request, in order for the counts to be 100% accurate.
*
* @see #UNIQUE_FIELD_VALS
*/
public static boolean isRefinementNeeded(Integer limitParam, Integer overrequestParam) {
if (FORCE_DISABLE_REFINEMENT) {
return false;
}
// use the "effective" values if the params are null
final int limit = null == limitParam ? DEFAULT_LIMIT : limitParam;
final int overrequest = null == overrequestParam ? 0 : overrequestParam;
return
// don't presume how much overrequest will be done by default, just check the limit
(overrequest < 0 && limit < UNIQUE_FIELD_VALS)
// if the user specified overrequest is not "enough" to get all unique values
|| (overrequest >= 0 && (long)limit + overrequest < UNIQUE_FIELD_VALS);
}
/**
* recursive helper method for building random facets
*
* @param keyCounter used to ensure every generated facet has a unique key name
* @param maxDepth max possible depth allowed for the recusion, a lower value may be used depending on how many facets are returned at the current level.
*/
private static Map<String,TermFacet> buildRandomFacets(AtomicInteger keyCounter, int maxDepth) {
final int numFacets = Math.max(1, TestUtil.nextInt(random(), -1, 3)); // 3/5th chance of being '1'
Map<String,TermFacet> results = new LinkedHashMap<>();
for (int i = 0; i < numFacets; i++) {
final JoinDomain domain = JoinDomain.buildRandomDomain();
assert null != domain;
final Integer limit = randomLimitParam(random());
final Integer overrequest = randomOverrequestParam(random());
final TermFacet facet = new TermFacet(field(random().nextBoolean() ? STR_FIELD_SUFFIXES : INT_FIELD_SUFFIXES,
random().nextInt(MAX_FIELD_NUM)),
domain, limit, overrequest,
randomRefineParam(random(), limit, overrequest));
results.put("facet_" + keyCounter.incrementAndGet(), facet);
if (0 < maxDepth) {
// if we're going wide, don't go deep
final int nextMaxDepth = Math.max(0, maxDepth - numFacets);
facet.subFacets.putAll(buildRandomFacets(keyCounter, TestUtil.nextInt(random(), 0, nextMaxDepth)));
}
}
return results;
}
}
/**
* Models a Domain Change which includes either a 'join' or a 'filter' or both
*/
private static final class JoinDomain {
public final String from;
public final String to;
public final String filter; // not bothering with more then 1 filter, not the point of the test
/**
* @param from left side of join field name, null if domain involves no joining
* @param to right side of join field name, null if domain involves no joining
* @param filter filter to apply to domain, null if domain involves no filtering
*/
public JoinDomain(String from, String to, String filter) {
assert ! ((null == from) ^ (null == to)) : "if from is null, to must be null";
this.from = from;
this.to = to;
this.filter = filter;
}
/**
* @return the JSON string representing this domain for use in a facet param, or null if no domain should be used
* */
public CharSequence toJSONFacetParamValue() {
if (null == from && null == filter) {
return null;
}
StringBuilder sb = new StringBuilder("domain:{");
if (null != from) {
assert null != to;
sb. append("join:{from:").append(from).append(",to:").append(to).append("}");
if (null != filter){
sb.append(",");
}
}
if (null != filter) {
sb.append("filter:'").append(filter).append("'");
}
sb.append("}");
return sb;
}
/**
* Given some original SolrParams, returns new SolrParams where the original "q" param is wrapped
* as needed to apply the equivalent transformation to a query as this domain would to a facet
*/
public SolrParams applyDomainToQuery(String safeKey, SolrParams in) {
assert null == in.get(safeKey); // shouldn't be possible if every facet uses a unique key string
String q = in.get("q");
final ModifiableSolrParams out = new ModifiableSolrParams(in);
if (null != from) {
out.set(safeKey, in.get("q"));
q = "{!join from="+from+" to="+to+" v=$"+safeKey+"}";
}
if (null != filter) {
q = filter + " AND " + q;
}
out.set("q", q);
return out;
}
/**
* Factory method for creating a random domain change to use with a facet - may return an 'noop' JoinDomain,
* but will never return null.
*/
public static JoinDomain buildRandomDomain() {
// use consistent type on both sides of join
final String[] suffixes = random().nextBoolean() ? STR_FIELD_SUFFIXES : INT_FIELD_SUFFIXES;
final boolean noJoin = random().nextBoolean();
String from = null;
String to = null;
for (;;) {
if (noJoin) break;
from = field(suffixes, random().nextInt(MAX_FIELD_NUM));
to = field(suffixes, random().nextInt(MAX_FIELD_NUM));
// HACK: joined numeric point fields need docValues.. for now just skip _is fields if we are dealing with points.
if (Boolean.getBoolean(SolrTestCaseJ4.NUMERIC_POINTS_SYSPROP) && (from.endsWith("_is") || to.endsWith("_is")))
{
continue;
}
break;
}
// keep it simple, only filter on string fields - not point of test
final String filterField = strfield(random().nextInt(MAX_FIELD_NUM));
final String filter = random().nextBoolean() ? null : filterField+":[* TO *]";
return new JoinDomain(from, to, filter);
}
}
/**
* returns a random SolrClient -- either a CloudSolrClient, or an HttpSolrClient pointed
* at a node in our cluster
*/
public static SolrClient getRandClient(Random rand) {
int numClients = CLIENTS.size();
int idx = TestUtil.nextInt(rand, 0, numClients);
return (idx == numClients) ? CLOUD_CLIENT : CLIENTS.get(idx);
}
}