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* 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.
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package org.apache.solr;
import org.apache.solr.SolrTestCaseJ4.SuppressPointFields;
import org.apache.solr.common.params.ModifiableSolrParams;
import org.noggit.JSONUtil;
import org.noggit.ObjectBuilder;
import org.apache.solr.request.SolrQueryRequest;
import org.junit.BeforeClass;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.invoke.MethodHandles;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
@SuppressPointFields
public class TestJoin extends SolrTestCaseJ4 {
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
@BeforeClass
public static void beforeTests() throws Exception {
System.setProperty("enable.update.log", "false"); // schema12 doesn't support _version_
initCore("solrconfig.xml","schema12.xml");
}
@Test
public void testJoin() throws Exception {
assertU(add(doc("id", "1","name", "john", "title", "Director", "dept_s","Engineering")));
assertU(add(doc("id", "2","name", "mark", "title", "VP", "dept_s","Marketing")));
assertU(add(doc("id", "3","name", "nancy", "title", "MTS", "dept_s","Sales")));
assertU(add(doc("id", "4","name", "dave", "title", "MTS", "dept_s","Support", "dept_s","Engineering")));
assertU(add(doc("id", "5","name", "tina", "title", "VP", "dept_s","Engineering")));
assertU(add(doc("id","10", "dept_id_s", "Engineering", "text","These guys develop stuff")));
assertU(add(doc("id","11", "dept_id_s", "Marketing", "text","These guys make you look good")));
assertU(add(doc("id","12", "dept_id_s", "Sales", "text","These guys sell stuff")));
assertU(add(doc("id","13", "dept_id_s", "Support", "text","These guys help customers")));
assertU(commit());
ModifiableSolrParams p = params("sort","id asc");
// test debugging
assertJQ(req(p, "q","{!join from=dept_s to=dept_id_s}title:MTS", "fl","id", "debugQuery","true")
,"/debug/join/{!join from=dept_s to=dept_id_s}title:MTS=={'_MATCH_':'fromSetSize,toSetSize', 'fromSetSize':2, 'toSetSize':3}"
);
assertJQ(req(p, "q","{!join from=dept_s to=dept_id_s}title:MTS", "fl","id")
,"/response=={'numFound':3,'start':0,'docs':[{'id':'10'},{'id':'12'},{'id':'13'}]}"
);
// empty from
assertJQ(req(p, "q","{!join from=noexist_s to=dept_id_s}*:*", "fl","id")
,"/response=={'numFound':0,'start':0,'docs':[]}"
);
// empty to
assertJQ(req(p, "q","{!join from=dept_s to=noexist_s}*:*", "fl","id")
,"/response=={'numFound':0,'start':0,'docs':[]}"
);
// self join... return everyone with she same title as Dave
assertJQ(req(p, "q","{!join from=title to=title}name:dave", "fl","id")
,"/response=={'numFound':2,'start':0,'docs':[{'id':'3'},{'id':'4'}]}"
);
// find people that develop stuff
assertJQ(req(p, "q","{!join from=dept_id_s to=dept_s}text:develop", "fl","id")
,"/response=={'numFound':3,'start':0,'docs':[{'id':'1'},{'id':'4'},{'id':'5'}]}"
);
// self join on multivalued text field
assertJQ(req(p, "q","{!join from=title to=title}name:dave", "fl","id")
,"/response=={'numFound':2,'start':0,'docs':[{'id':'3'},{'id':'4'}]}"
);
assertJQ(req(p, "q","{!join from=dept_s to=dept_id_s}title:MTS", "fl","id", "debugQuery","true")
,"/response=={'numFound':3,'start':0,'docs':[{'id':'10'},{'id':'12'},{'id':'13'}]}"
);
// expected outcome for a sub query matching dave joined against departments
final String davesDepartments =
"/response=={'numFound':2,'start':0,'docs':[{'id':'10'},{'id':'13'}]}";
// straight forward query
assertJQ(req(p, "q","{!join from=dept_s to=dept_id_s}name:dave",
"fl","id"),
davesDepartments);
// variable deref for sub-query parsing
assertJQ(req(p, "q","{!join from=dept_s to=dept_id_s v=$qq}",
"qq","{!dismax}dave",
"qf","name",
"fl","id",
"debugQuery","true"),
davesDepartments);
// variable deref for sub-query parsing w/localparams
assertJQ(req(p, "q","{!join from=dept_s to=dept_id_s v=$qq}",
"qq","{!dismax qf=name}dave",
"fl","id",
"debugQuery","true"),
davesDepartments);
// defType local param to control sub-query parsing
assertJQ(req(p, "q","{!join from=dept_s to=dept_id_s defType=dismax}dave",
"qf","name",
"fl","id",
"debugQuery","true"),
davesDepartments);
// find people that develop stuff - but limit via filter query to a name of "john"
// this tests filters being pushed down to queries (SOLR-3062)
assertJQ(req(p, "q","{!join from=dept_id_s to=dept_s}text:develop", "fl","id", "fq", "name:john")
,"/response=={'numFound':1,'start':0,'docs':[{'id':'1'}]}"
);
}
@Test
public void testRandomJoin() throws Exception {
int indexIter=50 * RANDOM_MULTIPLIER;
int queryIter=50 * RANDOM_MULTIPLIER;
// groups of fields that have any chance of matching... used to
// increase test effectiveness by avoiding 0 resultsets much of the time.
String[][] compat = new String[][] {
{"small_s","small2_s","small2_ss","small3_ss"},
{"small_i","small2_i","small2_is","small3_is", "small_i_dv", "small_is_dv"}
};
while (--indexIter >= 0) {
int indexSize = random().nextInt(20 * RANDOM_MULTIPLIER);
List<FldType> types = new ArrayList<>();
types.add(new FldType("id",ONE_ONE, new SVal('A','Z',4,4)));
types.add(new FldType("score_f",ONE_ONE, new FVal(1,100))); // field used to score
types.add(new FldType("small_s",ZERO_ONE, new SVal('a',(char)('c'+indexSize/3),1,1)));
types.add(new FldType("small2_s",ZERO_ONE, new SVal('a',(char)('c'+indexSize/3),1,1)));
types.add(new FldType("small2_ss",ZERO_TWO, new SVal('a',(char)('c'+indexSize/3),1,1)));
types.add(new FldType("small3_ss",new IRange(0,25), new SVal('A','z',1,1)));
types.add(new FldType("small_i",ZERO_ONE, new IRange(0,5+indexSize/3)));
types.add(new FldType("small2_i",ZERO_ONE, new IRange(0,5+indexSize/3)));
types.add(new FldType("small2_is",ZERO_TWO, new IRange(0,5+indexSize/3)));
types.add(new FldType("small3_is",new IRange(0,25), new IRange(0,100)));
types.add(new FldType("small_i_dv",ZERO_ONE, new IRange(0,5+indexSize/3)));
types.add(new FldType("small_is_dv",ZERO_ONE, new IRange(0,5+indexSize/3)));
clearIndex();
Map<Comparable, Doc> model = indexDocs(types, null, indexSize);
Map<String, Map<Comparable, Set<Comparable>>> pivots = new HashMap<>();
for (int qiter=0; qiter<queryIter; qiter++) {
String fromField;
String toField;
if (random().nextInt(100) < 5) {
// pick random fields 5% of the time
fromField = types.get(random().nextInt(types.size())).fname;
// pick the same field 50% of the time we pick a random field (since other fields won't match anything)
toField = (random().nextInt(100) < 50) ? fromField : types.get(random().nextInt(types.size())).fname;
} else {
// otherwise, pick compatible fields that have a chance of matching indexed tokens
String[] group = compat[random().nextInt(compat.length)];
fromField = group[random().nextInt(group.length)];
toField = group[random().nextInt(group.length)];
}
Map<Comparable, Set<Comparable>> pivot = pivots.get(fromField+"/"+toField);
if (pivot == null) {
pivot = createJoinMap(model, fromField, toField);
pivots.put(fromField+"/"+toField, pivot);
}
Collection<Doc> fromDocs = model.values();
Set<Comparable> docs = join(fromDocs, pivot);
List<Doc> docList = new ArrayList<>(docs.size());
for (Comparable id : docs) docList.add(model.get(id));
Collections.sort(docList, createComparator("_docid_",true,false,false,false));
List sortedDocs = new ArrayList();
for (Doc doc : docList) {
if (sortedDocs.size() >= 10) break;
sortedDocs.add(doc.toObject(h.getCore().getLatestSchema()));
}
Map<String,Object> resultSet = new LinkedHashMap<>();
resultSet.put("numFound", docList.size());
resultSet.put("start", 0);
resultSet.put("docs", sortedDocs);
// todo: use different join queries for better coverage
SolrQueryRequest req = req("wt","json","indent","true", "echoParams","all",
"q","{!join from="+fromField+" to="+toField
+ (random().nextInt(4)==0 ? " fromIndex=collection1" : "")
+"}*:*"
);
String strResponse = h.query(req);
Object realResponse = ObjectBuilder.fromJSON(strResponse);
String err = JSONTestUtil.matchObj("/response", realResponse, resultSet);
if (err != null) {
log.error("JOIN MISMATCH: " + err
+ "\n\trequest="+req
+ "\n\tresult="+strResponse
+ "\n\texpected="+ JSONUtil.toJSON(resultSet)
+ "\n\tmodel="+ model
);
// re-execute the request... good for putting a breakpoint here for debugging
String rsp = h.query(req);
fail(err);
}
}
}
}
Map<Comparable, Set<Comparable>> createJoinMap(Map<Comparable, Doc> model, String fromField, String toField) {
Map<Comparable, Set<Comparable>> id_to_id = new HashMap<>();
Map<Comparable, List<Comparable>> value_to_id = invertField(model, toField);
for (Comparable fromId : model.keySet()) {
Doc doc = model.get(fromId);
List<Comparable> vals = doc.getValues(fromField);
if (vals == null) continue;
for (Comparable val : vals) {
List<Comparable> toIds = value_to_id.get(val);
if (toIds == null) continue;
Set<Comparable> ids = id_to_id.get(fromId);
if (ids == null) {
ids = new HashSet<>();
id_to_id.put(fromId, ids);
}
for (Comparable toId : toIds)
ids.add(toId);
}
}
return id_to_id;
}
Set<Comparable> join(Collection<Doc> input, Map<Comparable, Set<Comparable>> joinMap) {
Set<Comparable> ids = new HashSet<>();
for (Doc doc : input) {
Collection<Comparable> output = joinMap.get(doc.id);
if (output == null) continue;
ids.addAll(output);
}
return ids;
}
}