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replace 'in' queries with a simpler syntax

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field in (val1, val2)
was replaced with
field=val1,val2
or
field=(val1, val2)
This commit is contained in:
Andreas Huber
2018-09-12 10:10:01 +02:00
parent 1182d76205
commit 86b8f93752
7 changed files with 54 additions and 93 deletions
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10
data-store/src/main/antlr/org/lucares/pdb/datastore/lang/PdbLang.g4
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@@ -9,13 +9,16 @@ start : expression EOF ;
expression
: LPAREN expression RPAREN #parenExpression
| NOT expression #notExpression
| prop=identifier eq=equal value=propValue #propertyExpression
//| prop=identifier in=inExpr LPAREN listOfProperties=listOfPropValues RPAREN #inExpression
| '_in' prop=identifier in=inExpr LPAREN listOfProperties=listOfPropValues RPAREN #inExpression
| prop=identifier eq=equal enclosedListOfPropValues #propertyExpression
| left=expression AND right=expression #binaryAndExpression
| left=expression OR right=expression #binaryOrExpression
;
enclosedListOfPropValues
: listOfPropValues
| LPAREN listOfProperties=listOfPropValues RPAREN
;
listOfPropValues
: value=propValue
| leftValue=propValue COMMA listOfProperties=listOfPropValues
@@ -29,7 +32,6 @@ propValue
;
equal : EQUAL ;
inExpr : IN ;
AND : 'and' ;
OR : 'or' ;

2
data-store/src/main/java/org/lucares/pdb/datastore/internal/Proposer.java
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@@ -40,7 +40,7 @@ public class Proposer {
result = ProposerParser.parse(q.toString(), dataStore, caretIndex + 1);
}
return CollectionUtils.filter(result, p -> p.hasResults());
return CollectionUtils.filter(result, Proposal::hasResults);
}
private SortedSet<Proposal> proposeForAllKeys() {

2
data-store/src/main/java/org/lucares/pdb/datastore/lang/ProposerParser.java
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@@ -26,7 +26,7 @@ public class ProposerParser {
final CommonTokenStream tokens = new CommonTokenStream(lexer);
final QueryCompletionPdbLangParser parser = new QueryCompletionPdbLangParser(tokens);
parser.setTrace(true);
parser.setTrace(false);
final Listener listener = parser.new Listener(query, dataStore, caretIndex);
parser.addErrorListener(listener);

27
data-store/src/main/java/org/lucares/pdb/datastore/lang/QueryCompletionPdbLangParser.java
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@@ -60,7 +60,8 @@ public class QueryCompletionPdbLangParser extends PdbLangParser {
if (_ctx.getParent() instanceof ListOfPropValuesContext) {
// for in-expressions, e.g. key in (val)
ParserRuleContext parent = _ctx.getParent();
while (parent instanceof ListOfPropValuesContext) {
while (parent instanceof ListOfPropValuesContext
|| parent instanceof EnclosedListOfPropValuesContext) {
parent = parent.getParent();
}
@@ -274,26 +275,10 @@ public class QueryCompletionPdbLangParser extends PdbLangParser {
public void enterEqual(final EqualContext ctx) {
}
@Override
public void enterInExpr(final InExprContext ctx) {
}
@Override
public void enterInExpression(final InExpressionContext ctx) {
}
@Override
public void exitEqual(final EqualContext ctx) {
}
@Override
public void exitInExpr(final InExprContext ctx) {
}
@Override
public void exitInExpression(final InExpressionContext ctx) {
}
private boolean isEOF(final TerminalNode node) {
return node.getSymbol().getType() < 0;
}
@@ -326,6 +311,14 @@ public class QueryCompletionPdbLangParser extends PdbLangParser {
@Override
public void exitListOfPropValues(final ListOfPropValuesContext ctx) {
}
@Override
public void enterEnclosedListOfPropValues(final EnclosedListOfPropValuesContext ctx) {
}
@Override
public void exitEnclosedListOfPropValues(final EnclosedListOfPropValuesContext ctx) {
}
}
public QueryCompletionPdbLangParser(final TokenStream input) {

26
data-store/src/main/java/org/lucares/pdb/datastore/lang/QueryLanguage.java
View File

@@ -13,16 +13,14 @@ import org.lucares.pdb.datastore.lang.Expression.InExpression;
import org.lucares.pdb.datastore.lang.Expression.ListOfPropertyValues;
import org.lucares.pdb.datastore.lang.Expression.Not;
import org.lucares.pdb.datastore.lang.Expression.OrTemporary;
import org.lucares.pdb.datastore.lang.Expression.Property;
import org.lucares.pdb.datastore.lang.Expression.TemporaryExpression;
import org.lucares.pdb.datastore.lang.Expression.Terminal;
import org.lucares.pdb.datastore.lang.PdbLangParser.BinaryAndExpressionContext;
import org.lucares.pdb.datastore.lang.PdbLangParser.BinaryOrExpressionContext;
import org.lucares.pdb.datastore.lang.PdbLangParser.EnclosedListOfPropValuesContext;
import org.lucares.pdb.datastore.lang.PdbLangParser.IdentifierExpressionContext;
import org.lucares.pdb.datastore.lang.PdbLangParser.InExpressionContext;
import org.lucares.pdb.datastore.lang.PdbLangParser.ListOfPropValuesContext;
import org.lucares.pdb.datastore.lang.PdbLangParser.NotExpressionContext;
import org.lucares.pdb.datastore.lang.PdbLangParser.PropertyExpressionContext;
import org.lucares.pdb.datastore.lang.PdbLangParser.PropertyTerminalExpressionContext;
public class QueryLanguage {
@@ -72,16 +70,16 @@ public class QueryLanguage {
stack.push(new Terminal(ctx.getText(), line, startIndex, stopIndex));
}
@Override
public void exitPropertyExpression(final PropertyExpressionContext ctx) {
// System.out.println("property expression");
final Expression value = stack.pop();
final Terminal property = (Terminal) stack.pop();
stack.push(new Property(property.getValue(), (Terminal) value));
}
// TODO remove
// @Override
// public void exitPropertyExpression(final PropertyExpressionContext ctx) {
// // System.out.println("property expression");
//
// final Expression value = stack.pop();
// final Terminal property = (Terminal) stack.pop();
//
// stack.push(new Property(property.getValue(), (Terminal) value));
// }
@Override
public void exitNotExpression(final NotExpressionContext ctx) {
@@ -134,7 +132,7 @@ public class QueryLanguage {
}
@Override
public void exitInExpression(final InExpressionContext ctx) {
public void exitEnclosedListOfPropValues(final EnclosedListOfPropValuesContext ctx) {
final ListOfPropertyValues propertyValues = (ListOfPropertyValues) stack.pop();
final Terminal propertyName = (Terminal) stack.pop();

43
data-store/src/test/java/org/lucares/pdb/datastore/internal/DataStoreTest.java
View File

@@ -3,7 +3,6 @@ package org.lucares.pdb.datastore.internal;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
@@ -77,16 +76,12 @@ public class DataStoreTest {
assertSearch("dog=*lab*dor*", labradorJenny, labradorTim);
// 'in' queries
// TODO fix in queries
/*
* assertSearch("bird in (eagle, pigeon, flamingo)", eagleTim, pigeonJennifer,
* flamingoJennifer);
* assertSearch("dog in (labrador) and name in (Tim, Jennifer)", labradorTim);
* assertSearch("name in (Jenn*)", pigeonJennifer, flamingoJennifer,
* labradorJenny); assertSearch("name in (*) and dog=labrador", labradorJenny,
* labradorTim); assertSearch("name in (XYZ, *) and dog=labrador",
* labradorJenny, labradorTim);
*/
assertSearch("bird=(eagle, pigeon, flamingo)", eagleTim, pigeonJennifer, flamingoJennifer);
assertSearch("dog = (labrador) and name =Tim,Jennifer", labradorTim);
assertSearch("name =Jenn*", pigeonJennifer, flamingoJennifer, labradorJenny);
assertSearch("name = (*) and dog=labrador", labradorJenny, labradorTim);
assertSearch("name =XYZ, * and dog=labrador", labradorJenny, labradorTim);
}
public void testGetByTags() throws IOException {
@@ -120,30 +115,4 @@ public class DataStoreTest {
Assert.assertEquals(actual, expectedPaths, "Query: " + query + " Found: " + actual);
}
// private List<Tags> getTagsForPaths(final List<Path> paths) {
//
// final List<Tags> result = new ArrayList<>();
//
// for (final Path path : paths) {
// result.add(getTagForPath(path));
// }
// return result;
// }
//
// private Tags getTagForPath(final Path path) {
// for (final Entry<Tags, Long> e : tagsToBlockStorageRootBlockNumber.entrySet()) {
//
// if (e.getValue().equals(path)) {
// return e.getKey();
// }
// }
// return null;
// }
private void assertSearch(final DataStore dataStore, final String query, final Path... paths) {
final List<Doc> actualDocs = dataStore.search(query);
final List<Long> actual = CollectionUtils.map(actualDocs, Doc::getRootBlockNumber);
Assert.assertEquals(actual, Arrays.asList(paths));
}
}

37
data-store/src/test/java/org/lucares/pdb/datastore/internal/ProposerTest.java
View File

@@ -81,11 +81,11 @@ public class ProposerTest {
public void testPrefixOfValue() throws Exception {
assertProposals("name =Tim", 9, //
new Proposal("Timothy", "name =Timothy ", true, "name =Timothy ", 14));
new Proposal("Timothy", "name =Timothy", true, "name =Timothy", 13));
assertProposals("name =Je", 8, //
new Proposal("Jennifer", "name =Jennifer ", true, "name =Jennifer ", 15), //
new Proposal("Jenny", "name =Jenny ", true, "name =Jenny ", 12) //
new Proposal("Jennifer", "name =Jennifer", true, "name =Jennifer", 14), //
new Proposal("Jenny", "name =Jenny", true, "name =Jenny", 11) //
);
assertProposals("bird=eagle and n", 16, //
@@ -95,22 +95,21 @@ public class ProposerTest {
*/
}
// TODO fix the in expression
@Test(enabled = false)
@Test(enabled = true)
public void testInExpressions() throws Exception {
assertProposals("name in (Timothy,)", 17, //
new Proposal("Jennifer", "name in (Timothy,Jennifer)", true, "name in (Timothy,Jennifer)", 25), //
new Proposal("Jenny", "name in (Timothy,Jenny)", true, "name in (Timothy,Jenny)", 22), //
new Proposal("Tim", "name in (Timothy,Tim)", true, "name in (Timothy,Tim)", 20), //
new Proposal("Timothy", "name in (Timothy,Timothy)", true, "name in (Timothy,Timothy)", 24)//
assertProposals("name = (Timothy,)", 16, //
new Proposal("Jennifer", "name = (Timothy,Jennifer)", true, "name = (Timothy,Jennifer)", 24), //
new Proposal("Jenny", "name = (Timothy,Jenny)", true, "name = (Timothy,Jenny)", 21), //
new Proposal("Tim", "name = (Timothy,Tim)", true, "name = (Timothy,Tim)", 19), //
new Proposal("Timothy", "name = (Timothy,Timothy)", true, "name = (Timothy,Timothy)", 23)//
);
assertProposals("name in (Timothy, J)", 19, //
new Proposal("Jennifer", "name in (Timothy, Jennifer)", true, "name in (Timothy, Jennifer)", 26), //
new Proposal("Jenny", "name in (Timothy, Jenny)", true, "name in (Timothy, Jenny)", 23));
assertProposals("name = (Timothy, J)", 18, //
new Proposal("Jennifer", "name = (Timothy, Jennifer)", true, "name = (Timothy, Jennifer)", 25), //
new Proposal("Jenny", "name = (Timothy, Jenny)", true, "name = (Timothy, Jenny)", 22));
assertProposals("name in (Tim)", 12, //
new Proposal("Timothy", "name in (Timothy)", true, "name in (Timothy)", 16));
assertProposals("name = (Tim)", 11, //
new Proposal("Timothy", "name = (Timothy)", true, "name = (Timothy)", 15));
/*
*/
@@ -118,10 +117,10 @@ public class ProposerTest {
public void testProposalOnEmptyValuePrefix() throws Exception {
assertProposals("name=", 5, //
new Proposal("Jennifer", "name=Jennifer ", true, "name=Jennifer ", 14), //
new Proposal("Jenny", "name=Jenny ", true, "name=Jenny ", 11), //
new Proposal("Tim", "name=Tim ", true, "name=Tim ", 9), //
new Proposal("Timothy", "name=Timothy ", true, "name=Timothy ", 13) //
new Proposal("Jennifer", "name=Jennifer", true, "name=Jennifer", 13), //
new Proposal("Jenny", "name=Jenny", true, "name=Jenny", 10), //
new Proposal("Tim", "name=Tim", true, "name=Tim", 8), //
new Proposal("Timothy", "name=Timothy", true, "name=Timothy", 12) //
);
}