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Checkstyle and license headers in plugin 

Original commit: elastic/x-pack-elasticsearch@e7855b949f
This commit is contained in:
Nik Everett 2017-06-22 12:22:57 -04:00
parent b504b0d2d9
commit 933a51edef
25 changed files with 1346 additions and 1495 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
build.gradle
View File

@ -40,7 +40,7 @@ subprojects {
}
tasks.withType(LicenseHeadersTask.class) {
approvedLicenses = ['Elasticsearch Confidential']
approvedLicenses = ['Elasticsearch Confidential', 'Generated']
additionalLicense 'ESCON', 'Elasticsearch Confidential', 'ELASTICSEARCH CONFIDENTIAL'
}
ext.projectSubstitutions += [ "org.elasticsearch.plugin:x-pack-api:${version}": ':x-pack-elasticsearch:plugin']

1
dev-tools/checkstyle_suppressions.xml
View File

@ -10,6 +10,7 @@
<!-- NOCOMMIT Temporary-->
<suppress files="plugin[/\\]src[/\\]main[/\\]java[/\\]org[/\\]elasticsearch[/\\]xpack[/\\]sql[/\\].*.java" checks="LineLength" />
<suppress files="plugin[/\\]src[/\\]main[/\\]java[/\\]org[/\\]elasticsearch[/\\]xpack[/\\]sql[/\\]expression[/\\].*.java" checks="EqualsHashCode" />
<suppress files="sql-clients[/\\].*.java" checks="LineLength" />
<suppress files="plugin[/\\]src[/\\]main[/\\]java[/\\]org[/\\]elasticsearch[/\\]xpack[/\\]common[/\\]action[/\\]XPackDeleteByQueryAction.java" checks="LineLength" />

2
plugin/src/main/java/org/elasticsearch/xpack/sql/analysis/analyzer/Analyzer.java
View File

@ -969,7 +969,7 @@ public class Analyzer extends RuleExecutor<LogicalPlan> {
}
}
static abstract class AnalyzeRule<SubPlan extends LogicalPlan> extends Rule<SubPlan, LogicalPlan> {
abstract static class AnalyzeRule<SubPlan extends LogicalPlan> extends Rule<SubPlan, LogicalPlan> {
// transformUp (post-order) - that is first children and then the node
// but with a twist; only if the tree is not resolved or analyzed

12
plugin/src/main/java/org/elasticsearch/xpack/sql/analysis/analyzer/Verifier.java
View File

@ -5,8 +5,6 @@
*/
package org.elasticsearch.xpack.sql.analysis.analyzer;
import java.util.*;
import org.elasticsearch.xpack.sql.expression.Attribute;
import org.elasticsearch.xpack.sql.expression.AttributeSet;
import org.elasticsearch.xpack.sql.expression.Expressions;
@ -20,6 +18,14 @@ import org.elasticsearch.xpack.sql.plan.logical.LogicalPlan;
import org.elasticsearch.xpack.sql.plan.logical.Project;
import org.elasticsearch.xpack.sql.tree.Node;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Locale;
import java.util.Objects;
import java.util.Set;
import static java.lang.String.format;
import static java.util.stream.Collectors.toList;
@ -29,7 +35,7 @@ abstract class Verifier {
private final Node<?> source;
private final String message;
public Failure(Node<?> source, String message) {
Failure(Node<?> source, String message) {
this.source = source;
this.message = message;
}

2
plugin/src/main/java/org/elasticsearch/xpack/sql/execution/search/DocValueExtractor.java
View File

@ -11,7 +11,7 @@ import org.elasticsearch.search.SearchHitField;
class DocValueExtractor implements HitExtractor {
private final String fieldName;
public DocValueExtractor(String name) {
DocValueExtractor(String name) {
this.fieldName = name;
}

2
plugin/src/main/java/org/elasticsearch/xpack/sql/execution/search/InnerHitExtractor.java
View File

@ -17,7 +17,7 @@ class InnerHitExtractor implements HitExtractor {
private final boolean useDocValue;
private final String[] tree;
public InnerHitExtractor(String hitName, String name, boolean useDocValue) {
InnerHitExtractor(String hitName, String name, boolean useDocValue) {
this.hitName = hitName;
this.fieldName = name;
this.useDocValue = useDocValue;

461
plugin/src/main/java/org/elasticsearch/xpack/sql/execution/search/Scroller.java
View File

@ -87,265 +87,268 @@ public class Scroller {
ScrollerActionListener l = new SessionScrollActionListener(listener, previous.client, previous.keepAlive, previous.schema, ext, previous.limit, previous.docsRead);
previous.client.searchScroll(new SearchScrollRequest(scrollId).scroll(previous.keepAlive), l);
}
}
// dedicated scroll used for aggs-only/group-by results
class AggsScrollActionListener extends ScrollerActionListener {
/**
* Dedicated scroll used for aggs-only/group-by results.
*/
static class AggsScrollActionListener extends ScrollerActionListener {
private final QueryContainer query;
private final QueryContainer query;
AggsScrollActionListener(ActionListener<RowSetCursor> listener, Client client, TimeValue keepAlive, Schema schema, QueryContainer query) {
super(listener, client, keepAlive, schema);
this.query = query;
}
AggsScrollActionListener(ActionListener<RowSetCursor> listener, Client client, TimeValue keepAlive, Schema schema, QueryContainer query) {
super(listener, client, keepAlive, schema);
this.query = query;
@Override
protected RowSetCursor handleResponse(SearchResponse response) {
Aggregations aggs = response.getAggregations();
List<Object[]> columns = new ArrayList<>();
// this method assumes the nested aggregation are all part of the same tree (the SQL group-by)
int maxDepth = -1;
for (Reference ref : query.refs()) {
Object[] arr = null;
ColumnsProcessor processor = null;
if (ref instanceof ProcessingRef) {
ProcessingRef pRef = (ProcessingRef) ref;
processor = pRef.processor();
ref = pRef.ref();
}
if (ref == TotalCountRef.INSTANCE) {
arr = new Object[] { processIfNeeded(processor, Long.valueOf(response.getHits().getTotalHits())) };
columns.add(arr);
}
else if (ref instanceof AggRef) {
// workaround for elastic/elasticsearch/issues/23056
String path = ((AggRef) ref).path();
boolean formattedKey = path.endsWith(Agg.PATH_BUCKET_VALUE_FORMATTED);
if (formattedKey) {
path = path.substring(0, path.length() - Agg.PATH_BUCKET_VALUE_FORMATTED.length());
}
Object value = getAggProperty(aggs, path);
if (formattedKey) {
List<? extends Bucket> buckets = ((MultiBucketsAggregation) value).getBuckets();
arr = new Object[buckets.size()];
for (int i = 0; i < buckets.size(); i++) {
arr[i] = buckets.get(i).getKeyAsString();
}
}
else {
arr = value instanceof Object[] ? (Object[]) value : new Object[] { value };
}
// process if needed
for (int i = 0; i < arr.length; i++) {
arr[i] = processIfNeeded(processor, arr[i]);
}
columns.add(arr);
}
// aggs without any grouping
else {
throw new SqlIllegalArgumentException("Unexpected non-agg/grouped column specified; %s", ref.getClass());
}
if (ref.depth() > maxDepth) {
maxDepth = ref.depth();
}
}
clearScroll(response.getScrollId());
return new AggsRowSetCursor(schema, columns, maxDepth, query.limit());
}
private static Object getAggProperty(Aggregations aggs, String path) {
List<String> list = AggregationPath.parse(path).getPathElementsAsStringList();
String aggName = list.get(0);
InternalAggregation agg = aggs.get(aggName);
if (agg == null) {
throw new ExecutionException("Cannot find an aggregation named %s", aggName);
}
return agg.getProperty(list.subList(1, list.size()));
}
private Object processIfNeeded(ColumnsProcessor processor, Object value) {
return processor != null ? processor.apply(value) : value;
}
}
@Override
protected RowSetCursor handleResponse(SearchResponse response) {
Aggregations aggs = response.getAggregations();
/**
* Initial scroll used for parsing search hits (handles possible aggs).
*/
static class HandshakeScrollActionListener extends SearchHitsActionListener {
private final QueryContainer query;
List<Object[]> columns = new ArrayList<>();
HandshakeScrollActionListener(ActionListener<RowSetCursor> listener, Client client, TimeValue keepAlive, Schema schema, QueryContainer query) {
super(listener, client, keepAlive, schema, query.limit(), 0);
this.query = query;
}
// this method assumes the nested aggregation are all part of the same tree (the SQL group-by)
int maxDepth = -1;
@Override
public void onResponse(SearchResponse response) {
super.onResponse(response);
}
for (Reference ref : query.refs()) {
Object[] arr = null;
@Override
protected List<HitExtractor> getExtractors() {
// create response extractors for the first time
List<Reference> refs = query.refs();
ColumnsProcessor processor = null;
List<HitExtractor> exts = new ArrayList<>(refs.size());
for (Reference ref : refs) {
exts.add(createExtractor(ref));
}
return exts;
}
private HitExtractor createExtractor(Reference ref) {
if (ref instanceof SearchHitFieldRef) {
SearchHitFieldRef f = (SearchHitFieldRef) ref;
return f.useDocValue() ? new DocValueExtractor(f.name()) : new SourceExtractor(f.name());
}
if (ref instanceof NestedFieldRef) {
NestedFieldRef f = (NestedFieldRef) ref;
return new InnerHitExtractor(f.parent(), f.name(), f.useDocValue());
}
if (ref instanceof ScriptFieldRef) {
ScriptFieldRef f = (ScriptFieldRef) ref;
return new DocValueExtractor(f.name());
}
if (ref instanceof ProcessingRef) {
ProcessingRef pRef = (ProcessingRef) ref;
processor = pRef.processor();
ref = pRef.ref();
return new ProcessingHitExtractor(createExtractor(pRef.ref()), pRef.processor());
}
if (ref == TotalCountRef.INSTANCE) {
arr = new Object[] { processIfNeeded(processor, Long.valueOf(response.getHits().getTotalHits())) };
columns.add(arr);
}
else if (ref instanceof AggRef) {
// workaround for elastic/elasticsearch/issues/23056
String path = ((AggRef) ref).path();
boolean formattedKey = path.endsWith(Agg.PATH_BUCKET_VALUE_FORMATTED);
if (formattedKey) {
path = path.substring(0, path.length() - Agg.PATH_BUCKET_VALUE_FORMATTED.length());
}
Object value = getAggProperty(aggs, path);
if (formattedKey) {
List<? extends Bucket> buckets = ((MultiBucketsAggregation) value).getBuckets();
arr = new Object[buckets.size()];
for (int i = 0; i < buckets.size(); i++) {
arr[i] = buckets.get(i).getKeyAsString();
throw new SqlIllegalArgumentException("Unexpected ValueReference %s", ref.getClass());
}
}
/**
* Listener used for streaming the rest of the results after the handshake has been used.
*/
static class SessionScrollActionListener extends SearchHitsActionListener {
private List<HitExtractor> exts;
SessionScrollActionListener(ActionListener<RowSetCursor> listener, Client client, TimeValue keepAlive, Schema schema, List<HitExtractor> ext, int limit, int docCount) {
super(listener, client, keepAlive, schema, limit, docCount);
this.exts = ext;
}
@Override
protected List<HitExtractor> getExtractors() {
return exts;
}
}
abstract static class SearchHitsActionListener extends ScrollerActionListener {
final int limit;
int docsRead;
SearchHitsActionListener(ActionListener<RowSetCursor> listener, Client client, TimeValue keepAlive, Schema schema, int limit,
int docsRead) {
super(listener, client, keepAlive, schema);
this.limit = limit;
this.docsRead = docsRead;
}
protected RowSetCursor handleResponse(SearchResponse response) {
SearchHit[] hits = response.getHits().getHits();
List<HitExtractor> exts = getExtractors();
// there are some results
if (hits.length > 0) {
String scrollId = response.getScrollId();
Consumer<ActionListener<RowSetCursor>> next = null;
docsRead += hits.length;
// if there's an id, try to setup next scroll
if (scrollId != null) {
// is all the content already retrieved?
if (Boolean.TRUE.equals(response.isTerminatedEarly()) || response.getHits().getTotalHits() == hits.length
// or maybe the limit has been reached
|| docsRead >= limit) {
// if so, clear the scroll
clearScroll(scrollId);
// and remove it to indicate no more data is expected
scrollId = null;
} else {
next = l -> Scroller.from(l, this, response.getScrollId(), exts);
}
}
else {
arr = value instanceof Object[] ? (Object[]) value : new Object[] { value };
}
// process if needed
for (int i = 0; i < arr.length; i++) {
arr[i] = processIfNeeded(processor, arr[i]);
}
columns.add(arr);
int limitHits = limit > 0 && docsRead >= limit ? limit : -1;
return new SearchHitRowSetCursor(schema, exts, hits, limitHits, scrollId, next);
}
// aggs without any grouping
// no hits
else {
throw new SqlIllegalArgumentException("Unexpected non-agg/grouped column specified; %s", ref.getClass());
}
if (ref.depth() > maxDepth) {
maxDepth = ref.depth();
clearScroll(response.getScrollId());
// typically means last page but might be an aggs only query
return needsHit(exts) ? Rows.empty(schema) : new SearchHitRowSetCursor(schema, exts);
}
}
clearScroll(response.getScrollId());
return new AggsRowSetCursor(schema, columns, maxDepth, query.limit());
}
private static Object getAggProperty(Aggregations aggs, String path) {
List<String> list = AggregationPath.parse(path).getPathElementsAsStringList();
String aggName = list.get(0);
InternalAggregation agg = aggs.get(aggName);
if (agg == null) {
throw new ExecutionException("Cannot find an aggregation named %s", aggName);
}
return agg.getProperty(list.subList(1, list.size()));
}
private Object processIfNeeded(ColumnsProcessor processor, Object value) {
return processor != null ? processor.apply(value) : value;
}
}
// initial scroll used for parsing search hits (handles possible aggs)
class HandshakeScrollActionListener extends SearchHitsActionListener {
private final QueryContainer query;
HandshakeScrollActionListener(ActionListener<RowSetCursor> listener, Client client, TimeValue keepAlive, Schema schema, QueryContainer query) {
super(listener, client, keepAlive, schema, query.limit(), 0);
this.query = query;
}
@Override
public void onResponse(SearchResponse response) {
super.onResponse(response);
}
@Override
protected List<HitExtractor> getExtractors() {
// create response extractors for the first time
List<Reference> refs = query.refs();
List<HitExtractor> exts = new ArrayList<>(refs.size());
for (Reference ref : refs) {
exts.add(createExtractor(ref));
}
return exts;
}
private HitExtractor createExtractor(Reference ref) {
if (ref instanceof SearchHitFieldRef) {
SearchHitFieldRef f = (SearchHitFieldRef) ref;
return f.useDocValue() ? new DocValueExtractor(f.name()) : new SourceExtractor(f.name());
private static boolean needsHit(List<HitExtractor> exts) {
for (HitExtractor ext : exts) {
if (ext instanceof DocValueExtractor || ext instanceof ProcessingHitExtractor) {
return true;
}
}
return false;
}
if (ref instanceof NestedFieldRef) {
NestedFieldRef f = (NestedFieldRef) ref;
return new InnerHitExtractor(f.parent(), f.name(), f.useDocValue());
protected abstract List<HitExtractor> getExtractors();
}
abstract static class ScrollerActionListener implements ActionListener<SearchResponse> {
final ActionListener<RowSetCursor> listener;
final Client client;
final TimeValue keepAlive;
final Schema schema;
ScrollerActionListener(ActionListener<RowSetCursor> listener, Client client, TimeValue keepAlive, Schema schema) {
this.listener = listener;
this.client = client;
this.keepAlive = keepAlive;
this.schema = schema;
}
if (ref instanceof ScriptFieldRef) {
ScriptFieldRef f = (ScriptFieldRef) ref;
return new DocValueExtractor(f.name());
// TODO: need to handle rejections plus check failures (shard size, etc...)
@Override
public void onResponse(final SearchResponse response) {
try {
ShardSearchFailure[] failure = response.getShardFailures();
if (!ObjectUtils.isEmpty(failure)) {
onFailure(new ExecutionException(failure[0].reason(), failure[0].getCause()));
}
listener.onResponse(handleResponse(response));
} catch (Exception ex) {
onFailure(ex);
}
}
if (ref instanceof ProcessingRef) {
ProcessingRef pRef = (ProcessingRef) ref;
return new ProcessingHitExtractor(createExtractor(pRef.ref()), pRef.processor());
}
protected abstract RowSetCursor handleResponse(SearchResponse response);
throw new SqlIllegalArgumentException("Unexpected ValueReference %s", ref.getClass());
}
}
// listener used for streaming the rest of the results after the handshake has been used
class SessionScrollActionListener extends SearchHitsActionListener {
private List<HitExtractor> exts;
SessionScrollActionListener(ActionListener<RowSetCursor> listener, Client client, TimeValue keepAlive, Schema schema, List<HitExtractor> ext, int limit, int docCount) {
super(listener, client, keepAlive, schema, limit, docCount);
this.exts = ext;
}
@Override
protected List<HitExtractor> getExtractors() {
return exts;
}
}
abstract class SearchHitsActionListener extends ScrollerActionListener {
final int limit;
int docsRead;
SearchHitsActionListener(ActionListener<RowSetCursor> listener, Client client, TimeValue keepAlive, Schema schema, int limit, int docsRead) {
super(listener, client, keepAlive, schema);
this.limit = limit;
this.docsRead = docsRead;
}
protected RowSetCursor handleResponse(SearchResponse response) {
SearchHit[] hits = response.getHits().getHits();
List<HitExtractor> exts = getExtractors();
// there are some results
if (hits.length > 0) {
String scrollId = response.getScrollId();
Consumer<ActionListener<RowSetCursor>> next = null;
docsRead += hits.length;
// if there's an id, try to setup next scroll
protected final void clearScroll(String scrollId) {
if (scrollId != null) {
// is all the content already retrieved?
if (Boolean.TRUE.equals(response.isTerminatedEarly()) || response.getHits().getTotalHits() == hits.length
// or maybe the limit has been reached
|| docsRead >= limit) {
// if so, clear the scroll
clearScroll(scrollId);
// and remove it to indicate no more data is expected
scrollId = null;
}
else {
next = l -> Scroller.from(l, this, response.getScrollId(), exts);
}
}
int limitHits = limit > 0 && docsRead >= limit ? limit : -1;
return new SearchHitRowSetCursor(schema, exts, hits, limitHits, scrollId, next);
}
// no hits
else {
clearScroll(response.getScrollId());
// typically means last page but might be an aggs only query
return needsHit(exts) ? Rows.empty(schema) : new SearchHitRowSetCursor(schema, exts);
}
}
private static boolean needsHit(List<HitExtractor> exts) {
for (HitExtractor ext : exts) {
if (ext instanceof DocValueExtractor || ext instanceof ProcessingHitExtractor) {
return true;
// fire and forget
client.prepareClearScroll().addScrollId(scrollId).execute();
}
}
return false;
}
protected abstract List<HitExtractor> getExtractors();
@Override
public final void onFailure(Exception ex) {
listener.onFailure(ex);
}
}
}
abstract class ScrollerActionListener implements ActionListener<SearchResponse> {
final ActionListener<RowSetCursor> listener;
final Client client;
final TimeValue keepAlive;
final Schema schema;
ScrollerActionListener(ActionListener<RowSetCursor> listener, Client client, TimeValue keepAlive, Schema schema) {
this.listener = listener;
this.client = client;
this.keepAlive = keepAlive;
this.schema = schema;
}
// TODO: need to handle rejections plus check failures (shard size, etc...)
@Override
public void onResponse(final SearchResponse response) {
try {
ShardSearchFailure[] failure = response.getShardFailures();
if (!ObjectUtils.isEmpty(failure)) {
onFailure(new ExecutionException(failure[0].reason(), failure[0].getCause()));
}
listener.onResponse(handleResponse(response));
} catch (Exception ex) {
onFailure(ex);
}
}
protected abstract RowSetCursor handleResponse(SearchResponse response);
protected final void clearScroll(String scrollId) {
if (scrollId != null) {
// fire and forget
client.prepareClearScroll().addScrollId(scrollId).execute();
}
}
@Override
public final void onFailure(Exception ex) {
listener.onFailure(ex);
}
}

2
plugin/src/main/java/org/elasticsearch/xpack/sql/execution/search/SourceExtractor.java
View File

@ -12,7 +12,7 @@ import org.elasticsearch.search.SearchHit;
class SourceExtractor implements HitExtractor {
private final String fieldName;
public SourceExtractor(String name) {
SourceExtractor(String name) {
this.fieldName = name;
}

1
plugin/src/main/java/org/elasticsearch/xpack/sql/expression/NamedExpression.java
View File

@ -43,6 +43,7 @@ public abstract class NamedExpression extends Expression {
@Override
public final int hashCode() {
// NOCOMMIT making this final upsets checkstyle.
return id.hashCode();
}

2
plugin/src/main/java/org/elasticsearch/xpack/sql/expression/UnresolvedNamedExpression.java
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@ -14,7 +14,7 @@ import org.elasticsearch.xpack.sql.type.DataType;
abstract class UnresolvedNamedExpression extends NamedExpression implements Unresolvable {
public UnresolvedNamedExpression(Location location, List<Expression> children) {
UnresolvedNamedExpression(Location location, List<Expression> children) {
super(location, "<unresolved>", children, ExpressionIdGenerator.EMPTY);
}

51
plugin/src/main/java/org/elasticsearch/xpack/sql/expression/function/DefaultFunctionRegistry.java
View File

@ -5,16 +5,53 @@
*/
package org.elasticsearch.xpack.sql.expression.function;
import org.elasticsearch.xpack.sql.SqlException;
import org.elasticsearch.xpack.sql.expression.function.aggregate.Avg;
import org.elasticsearch.xpack.sql.expression.function.aggregate.Count;
import org.elasticsearch.xpack.sql.expression.function.aggregate.Max;
import org.elasticsearch.xpack.sql.expression.function.aggregate.Min;
import org.elasticsearch.xpack.sql.expression.function.aggregate.Sum;
import org.elasticsearch.xpack.sql.expression.function.scalar.ScalarFunction;
import org.elasticsearch.xpack.sql.expression.function.scalar.datetime.DayOfMonth;
import org.elasticsearch.xpack.sql.expression.function.scalar.datetime.DayOfWeek;
import org.elasticsearch.xpack.sql.expression.function.scalar.datetime.DayOfYear;
import org.elasticsearch.xpack.sql.expression.function.scalar.datetime.HourOfDay;
import org.elasticsearch.xpack.sql.expression.function.scalar.datetime.MinuteOfDay;
import org.elasticsearch.xpack.sql.expression.function.scalar.datetime.MinuteOfHour;
import org.elasticsearch.xpack.sql.expression.function.scalar.datetime.MonthOfYear;
import org.elasticsearch.xpack.sql.expression.function.scalar.datetime.SecondOfMinute;
import org.elasticsearch.xpack.sql.expression.function.scalar.datetime.Year;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.ACos;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.ASin;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.ATan;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Abs;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Cbrt;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Ceil;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Cos;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Cosh;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Degrees;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.E;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Exp;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Expm1;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Floor;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Log;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Log10;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Pi;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Radians;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Round;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Sin;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Sinh;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Sqrt;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.Tan;
import java.io.IOException;
import java.lang.reflect.Modifier;
import java.net.URL;
import java.util.*;
import org.elasticsearch.xpack.sql.SqlException;
import org.elasticsearch.xpack.sql.expression.function.aggregate.*;
import org.elasticsearch.xpack.sql.expression.function.scalar.ScalarFunction;
import org.elasticsearch.xpack.sql.expression.function.scalar.datetime.*;
import org.elasticsearch.xpack.sql.expression.function.scalar.math.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Enumeration;
import java.util.Map;
import static org.elasticsearch.xpack.sql.util.CollectionUtils.combine;
import static org.elasticsearch.xpack.sql.util.CollectionUtils.of;

2
plugin/src/main/java/org/elasticsearch/xpack/sql/expression/function/FunctionType.java
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@ -16,7 +16,7 @@ public enum FunctionType {
private final Class<? extends Function> baseClass;
private FunctionType(Class<? extends Function> base) {
FunctionType(Class<? extends Function> base) {
this.baseClass = base;
}

2
plugin/src/main/java/org/elasticsearch/xpack/sql/expression/predicate/fulltext/FullTextPredicate.java
View File

@ -16,7 +16,7 @@ import org.elasticsearch.xpack.sql.type.DataTypes;
public class FullTextPredicate extends Expression {
public static enum Operator {
public enum Operator {
AND,
OR;

1203
plugin/src/main/java/org/elasticsearch/xpack/sql/optimizer/Optimizer.java
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File diff suppressed because it is too large Load Diff

3
plugin/src/main/java/org/elasticsearch/xpack/sql/parser/CaseInsensitiveStream.java
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@ -13,9 +13,10 @@ import org.antlr.v4.runtime.IntStream;
// extension of ANTLR that does the uppercasing once for the whole stream
// the ugly part is that it has to duplicate LA method
class CaseInsensitiveStream extends ANTLRInputStream {
// NOCOMMIT maybe we can fix this in the lexer or on the way in so we don't need the LA override
protected char[] uppedChars;
public CaseInsensitiveStream(String input) {
CaseInsensitiveStream(String input) {
super(input);
this.uppedChars = input.toUpperCase(Locale.ROOT).toCharArray();
}

204
plugin/src/main/java/org/elasticsearch/xpack/sql/parser/SqlBaseLexer.tokens
View File

@ -1,204 +0,0 @@
T__0=1
T__1=2
T__2=3
T__3=4
T__4=5
SELECT=6
FROM=7
AS=8
ALL=9
WHEN=10
THEN=11
ANY=12
DISTINCT=13
WHERE=14
GROUP=15
BY=16
GROUPING=17
SETS=18
ORDER=19
HAVING=20
LIMIT=21
OR=22
AND=23
IN=24
NOT=25
NO=26
EXISTS=27
BETWEEN=28
LIKE=29
RLIKE=30
IS=31
NULL=32
TRUE=33
FALSE=34
LAST=35
ASC=36
DESC=37
FOR=38
INTEGER=39
JOIN=40
CROSS=41
OUTER=42
INNER=43
LEFT=44
RIGHT=45
FULL=46
NATURAL=47
USING=48
ON=49
WITH=50
TABLE=51
INTO=52
DESCRIBE=53
OPTION=54
EXPLAIN=55
ANALYZE=56
FORMAT=57
TYPE=58
TEXT=59
VERIFY=60
GRAPHVIZ=61
LOGICAL=62
PHYSICAL=63
SHOW=64
TABLES=65
COLUMNS=66
COLUMN=67
FUNCTIONS=68
TO=69
DEBUG=70
PLAN=71
PARSED=72
ANALYZED=73
OPTIMIZED=74
MAPPED=75
EXECUTABLE=76
USE=77
SET=78
RESET=79
SESSION=80
SCHEMAS=81
EXTRACT=82
QUERY=83
MATCH=84
CAST=85
EQ=86
NEQ=87
LT=88
LTE=89
GT=90
GTE=91
PLUS=92
MINUS=93
ASTERISK=94
SLASH=95
PERCENT=96
CONCAT=97
STRING=98
INTEGER_VALUE=99
DECIMAL_VALUE=100
IDENTIFIER=101
DIGIT_IDENTIFIER=102
QUOTED_IDENTIFIER=103
BACKQUOTED_IDENTIFIER=104
SIMPLE_COMMENT=105
BRACKETED_COMMENT=106
WS=107
UNRECOGNIZED=108
'('=1
')'=2
','=3
'.'=4
'"'=5
'SELECT'=6
'FROM'=7
'AS'=8
'ALL'=9
'WHEN'=10
'THEN'=11
'ANY'=12
'DISTINCT'=13
'WHERE'=14
'GROUP'=15
'BY'=16
'GROUPING'=17
'SETS'=18
'ORDER'=19
'HAVING'=20
'LIMIT'=21
'OR'=22
'AND'=23
'IN'=24
'NOT'=25
'NO'=26
'EXISTS'=27
'BETWEEN'=28
'LIKE'=29
'RLIKE'=30
'IS'=31
'NULL'=32
'TRUE'=33
'FALSE'=34
'LAST'=35
'ASC'=36
'DESC'=37
'FOR'=38
'INTEGER'=39
'JOIN'=40
'CROSS'=41
'OUTER'=42
'INNER'=43
'LEFT'=44
'RIGHT'=45
'FULL'=46
'NATURAL'=47
'USING'=48
'ON'=49
'WITH'=50
'TABLE'=51
'INTO'=52
'DESCRIBE'=53
'OPTION'=54
'EXPLAIN'=55
'ANALYZE'=56
'FORMAT'=57
'TYPE'=58
'TEXT'=59
'VERIFY'=60
'GRAPHVIZ'=61
'LOGICAL'=62
'PHYSICAL'=63
'SHOW'=64
'TABLES'=65
'COLUMNS'=66
'COLUMN'=67
'FUNCTIONS'=68
'TO'=69
'DEBUG'=70
'PLAN'=71
'PARSED'=72
'ANALYZED'=73
'OPTIMIZED'=74
'MAPPED'=75
'EXECUTABLE'=76
'USE'=77
'SET'=78
'RESET'=79
'SESSION'=80
'SCHEMAS'=81
'EXTRACT'=82
'QUERY'=83
'MATCH'=84
'CAST'=85
'='=86
'<'=88
'<='=89
'>'=90
'>='=91
'+'=92
'-'=93
'*'=94
'/'=95
'%'=96
'||'=97

6
plugin/src/main/java/org/elasticsearch/xpack/sql/plan/logical/BinaryPlan.java
View File

@ -42,4 +42,10 @@ abstract class BinaryPlan extends LogicalPlan {
return Objects.equals(left(), other.left())
&& Objects.equals(right(), other.right());
}
@Override
public int hashCode() {
return Objects.hash(left, right);
}
}

11
plugin/src/main/java/org/elasticsearch/xpack/sql/plan/logical/Join.java
View File

@ -22,11 +22,12 @@ public class Join extends BinaryPlan {
private final JoinType type;
private final Expression condition;
public static enum JoinType {
INNER, LEFT // OUTER
, RIGHT // OUTER
, FULL // OUTER
, IMPLICIT
public enum JoinType {
INNER,
LEFT, // OUTER
RIGHT, // OUTER
FULL, // OUTER
IMPLICIT,
}
public Join(Location location, LogicalPlan left, LogicalPlan right, JoinType type, Expression condition) {

3
plugin/src/main/java/org/elasticsearch/xpack/sql/plan/physical/LeafExec.java
View File

@ -10,8 +10,7 @@ import java.util.Collections;
import org.elasticsearch.xpack.sql.tree.Location;
abstract class LeafExec extends PhysicalPlan {
public LeafExec(Location location) {
LeafExec(Location location) {
super(location, Collections.emptyList());
}
}

34
plugin/src/main/java/org/elasticsearch/xpack/sql/planner/Mapper.java
View File

@ -124,26 +124,26 @@ class Mapper extends RuleExecutor<PhysicalPlan> {
throw new UnsupportedOperationException("Don't know how to handle join " + join.nodeString());
}
}
}
abstract class MapExecRule<SubPlan extends LogicalPlan> extends Rule<UnplannedExec, PhysicalPlan> {
abstract static class MapExecRule<SubPlan extends LogicalPlan> extends Rule<UnplannedExec, PhysicalPlan> {
private final Class<SubPlan> subPlanToken = ReflectionUtils.detectSuperTypeForRuleLike(getClass());
private final Class<SubPlan> subPlanToken = ReflectionUtils.detectSuperTypeForRuleLike(getClass());
@Override
public final PhysicalPlan apply(PhysicalPlan plan) {
return plan.transformUp(this::rule, UnplannedExec.class);
}
@SuppressWarnings("unchecked")
@Override
protected final PhysicalPlan rule(UnplannedExec plan) {
LogicalPlan subPlan = plan.plan();
if (subPlanToken.isInstance(subPlan)) {
return map((SubPlan) subPlan);
@Override
public final PhysicalPlan apply(PhysicalPlan plan) {
return plan.transformUp(this::rule, UnplannedExec.class);
}
return plan;
}
protected abstract PhysicalPlan map(SubPlan plan);
@SuppressWarnings("unchecked")
@Override
protected final PhysicalPlan rule(UnplannedExec plan) {
LogicalPlan subPlan = plan.plan();
if (subPlanToken.isInstance(subPlan)) {
return map((SubPlan) subPlan);
}
return plan;
}
protected abstract PhysicalPlan map(SubPlan plan);
}
}

25
plugin/src/main/java/org/elasticsearch/xpack/sql/planner/QueryFolder.java
View File

@ -470,16 +470,19 @@ class QueryFolder extends RuleExecutor<PhysicalPlan> {
return exec.with(qContainer);
}
}
/**
* Rule for folding physical plans together.
*/
abstract static class FoldingRule<SubPlan extends PhysicalPlan> extends Rule<SubPlan, PhysicalPlan> {
@Override
public final PhysicalPlan apply(PhysicalPlan plan) {
return plan.transformUp(this::rule, typeToken());
}
@Override
protected abstract PhysicalPlan rule(SubPlan plan);
}
}
// rule for folding physical plans together
abstract class FoldingRule<SubPlan extends PhysicalPlan> extends Rule<SubPlan, PhysicalPlan> {
@Override
public final PhysicalPlan apply(PhysicalPlan plan) {
return plan.transformUp(this::rule, typeToken());
}
@Override
protected abstract PhysicalPlan rule(SubPlan plan);
}

804
plugin/src/main/java/org/elasticsearch/xpack/sql/planner/QueryTranslator.java
View File

@ -5,14 +5,6 @@
*/
package org.elasticsearch.xpack.sql.planner;
import java.util.Arrays;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
import org.elasticsearch.xpack.sql.SqlIllegalArgumentException;
import org.elasticsearch.xpack.sql.expression.Attribute;
import org.elasticsearch.xpack.sql.expression.BinaryExpression;
@ -51,7 +43,6 @@ import org.elasticsearch.xpack.sql.expression.predicate.fulltext.MultiMatchQuery
import org.elasticsearch.xpack.sql.expression.predicate.fulltext.StringQueryPredicate;
import org.elasticsearch.xpack.sql.expression.regex.Like;
import org.elasticsearch.xpack.sql.expression.regex.RLike;
import org.elasticsearch.xpack.sql.planner.QueryTranslator.QueryTranslation;
import org.elasticsearch.xpack.sql.querydsl.agg.Agg;
import org.elasticsearch.xpack.sql.querydsl.agg.AggFilter;
import org.elasticsearch.xpack.sql.querydsl.agg.AndAggFilter;
@ -83,12 +74,18 @@ import org.elasticsearch.xpack.sql.type.DataTypes;
import org.elasticsearch.xpack.sql.util.Assert;
import org.elasticsearch.xpack.sql.util.ReflectionUtils;
import java.util.Arrays;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
import static java.lang.String.format;
import static java.util.stream.Collectors.toList;
import static org.elasticsearch.xpack.sql.expression.function.scalar.script.ParamsBuilder.paramsBuilder;
import static org.elasticsearch.xpack.sql.expression.function.scalar.script.ScriptTemplate.formatTemplate;
import static org.elasticsearch.xpack.sql.planner.QueryTranslator.*;
abstract class QueryTranslator {
@ -399,397 +396,396 @@ abstract class QueryTranslator {
}
throw new SqlIllegalArgumentException("Does not know how to convert argument %s for functon %s", arg.nodeString(), af.nodeString());
}
// TODO: need to optimize on ngram
// TODO: see whether escaping is needed
static class Likes extends ExppressionTranslator<BinaryExpression> {
@Override
protected QueryTranslation asQuery(BinaryExpression e, boolean onAggs) {
Query q = null;
boolean analyzed = true;
String target = null;
if (e.left() instanceof FieldAttribute) {
FieldAttribute fa = (FieldAttribute) e.left();
analyzed = fa.isAnalyzed();
target = nameOf(analyzed ? fa : fa.notAnalyzedAttribute());
}
String pattern = sqlToEsPatternMatching(valueOf(e.right()));
if (e instanceof Like) {
if (analyzed) {
q = new QueryStringQuery(e.location(), pattern, target);
}
else {
q = new WildcardQuery(e.location(), nameOf(e.left()), pattern);
}
}
if (e instanceof RLike) {
if (analyzed) {
q = new QueryStringQuery(e.location(), "/" + pattern + "/", target);
}
else {
q = new RegexQuery(e.location(), nameOf(e.left()), sqlToEsPatternMatching(valueOf(e.right())));
}
}
return q != null ? new QueryTranslation(wrapIfNested(q, e.left())) : null;
}
private static String sqlToEsPatternMatching(String pattern) {
return pattern.replace("%", "*").replace("_", "?");
}
private static boolean hasMatchingPattern(String pattern) {
return pattern.contains("*") || pattern.contains("?");
}
}
static class StringQueries extends ExppressionTranslator<StringQueryPredicate> {
@Override
protected QueryTranslation asQuery(StringQueryPredicate q, boolean onAggs) {
return new QueryTranslation(new QueryStringQuery(q.location(), q.query(), q.fields(), q));
}
}
static class Matches extends ExppressionTranslator<MatchQueryPredicate> {
@Override
protected QueryTranslation asQuery(MatchQueryPredicate q, boolean onAggs) {
return new QueryTranslation(wrapIfNested(new MatchQuery(q.location(), nameOf(q.field()), q.query(), q), q.field()));
}
}
static class MultiMatches extends ExppressionTranslator<MultiMatchQueryPredicate> {
@Override
protected QueryTranslation asQuery(MultiMatchQueryPredicate q, boolean onAggs) {
return new QueryTranslation(new MultiMatchQuery(q.location(), q.query(), q.fields(), q));
}
}
static class BinaryLogic extends ExppressionTranslator<BinaryExpression> {
@Override
protected QueryTranslation asQuery(BinaryExpression e, boolean onAggs) {
if (e instanceof And) {
return and(e.location(), toQuery(e.left(), onAggs), toQuery(e.right(), onAggs));
}
if (e instanceof Or) {
return or(e.location(), toQuery(e.left(), onAggs), toQuery(e.right(), onAggs));
}
return null;
}
}
static class Nots extends ExppressionTranslator<Not> {
@Override
protected QueryTranslation asQuery(Not not, boolean onAggs) {
QueryTranslation translation = toQuery(not.child(), onAggs);
return new QueryTranslation(not(translation.query), translation.aggFilter);
}
}
// assume the Optimizer properly orders the predicates to ease the translation
static class BinaryComparisons extends ExppressionTranslator<BinaryComparison> {
@Override
protected QueryTranslation asQuery(BinaryComparison bc, boolean onAggs) {
Assert.isTrue(bc.right() instanceof Literal, "don't know how to translate right %s in %s", bc.right().nodeString(), bc);
if (bc.left() instanceof NamedExpression) {
NamedExpression ne = (NamedExpression) bc.left();
Query query = null;
AggFilter aggFilter = null;
Attribute at = ne.toAttribute();
// scalar function can appear in both WHERE and HAVING so handle it first
// in both cases the function script is used - script-query/query for the former, bucket-selector/aggFilter for the latter
if (at instanceof ScalarFunctionAttribute) {
ScalarFunctionAttribute sfa = (ScalarFunctionAttribute) at;
ScriptTemplate scriptTemplate = sfa.script();
String template = formatTemplate("%s %s {}", scriptTemplate.template(), bc.symbol());
// no need to bind the wrapped/target agg - it is already available through the nested script (needed to create the script itself)
Params params = paramsBuilder().script(scriptTemplate.params()).variable(valueOf(bc.right())).build();
ScriptTemplate script = new ScriptTemplate(template, params, DataTypes.BOOLEAN);
if (onAggs) {
aggFilter = new AggFilter(at.id().toString(), script);
}
else {
query = new ScriptQuery(at.location(), script);
}
}
//
// Agg context means HAVING -> PipelineAggs
//
else if (onAggs) {
String template = null;
Params params = null;
// agg function
if (at instanceof AggregateFunctionAttribute) {
AggregateFunctionAttribute fa = (AggregateFunctionAttribute) at;
// TODO: handle case where both sides of the comparison are functions
template = formatTemplate("{} %s {}", bc.symbol());
// bind the agg and the variable to the script
params = paramsBuilder().agg(fa.functionId(), fa.propertyPath()).variable(valueOf(bc.right())).build();
}
aggFilter = new AggFilter(at.id().toString(), new ScriptTemplate(template, params, DataTypes.BOOLEAN));
}
//
// No Agg context means WHERE clause
//
else {
if (at instanceof FieldAttribute) {
query = wrapIfNested(translateQuery(bc), ne);
}
}
return new QueryTranslation(query, aggFilter);
}
else {
throw new UnsupportedOperationException("No idea how to translate " + bc.left());
}
}
private static Query translateQuery(BinaryComparison bc) {
Location loc = bc.location();
String name = nameOf(bc.left());
Object value = valueOf(bc.right());
String format = dateFormat(bc.left());
if (bc instanceof GreaterThan) {
return new RangeQuery(loc, name, value, false, null, false, format);
}
if (bc instanceof GreaterThanOrEqual) {
return new RangeQuery(loc, name, value, true, null, false, format);
}
if (bc instanceof LessThan) {
return new RangeQuery(loc, name, null, false, value, false, format);
}
if (bc instanceof LessThanOrEqual) {
return new RangeQuery(loc, name, null, false, value, true, format);
}
if (bc instanceof Equals) {
if (bc.left() instanceof FieldAttribute) {
FieldAttribute fa = (FieldAttribute) bc.left();
if (fa.isAnalyzed()) {
return new MatchQuery(loc, name, value);
}
}
return new TermQuery(loc, name, value);
}
Assert.isTrue(false, "don't know how to translate binary comparison %s in %s", bc.right().nodeString(), bc);
return null;
}
}
static class Ranges extends ExppressionTranslator<Range> {
@Override
protected QueryTranslation asQuery(Range r, boolean onAggs) {
Object lower = valueOf(r.lower());
Object upper = valueOf(r.upper());
Expression e = r.value();
if (e instanceof NamedExpression) {
NamedExpression ne = (NamedExpression) e;
Query query = null;
AggFilter aggFilter = null;
Attribute at = ne.toAttribute();
// scalar function can appear in both WHERE and HAVING so handle it first
// in both cases the function script is used - script-query/query for the former, bucket-selector/aggFilter for the latter
if (at instanceof ScalarFunctionAttribute) {
ScalarFunctionAttribute sfa = (ScalarFunctionAttribute) at;
ScriptTemplate scriptTemplate = sfa.script();
String template = formatTemplate("({} %s %s) && (%s %s {})",
r.includeLower() ? "<=" : "<",
scriptTemplate.template(),
scriptTemplate.template(),
r.includeUpper() ? "<=" : "<");
// no need to bind the wrapped/target - it is already available through the nested script (needed to create the script itself)
Params params = paramsBuilder().variable(lower)
.script(scriptTemplate.params())
.script(scriptTemplate.params())
.variable(upper)
.build();
ScriptTemplate script = new ScriptTemplate(template, params, DataTypes.BOOLEAN);
if (onAggs) {
aggFilter = new AggFilter(at.id().toString(), script);
}
else {
query = new ScriptQuery(at.location(), script);
}
}
//
// HAVING
//
else if (onAggs) {
String template = null;
Params params = null;
// agg function
if (at instanceof AggregateFunctionAttribute) {
AggregateFunctionAttribute fa = (AggregateFunctionAttribute) at;
template = formatTemplate("{} %s {} && {} %s {}",
r.includeLower() ? "<=" : "<",
r.includeUpper() ? "<=" : "<");
params = paramsBuilder().variable(lower)
.agg(fa.functionId(), fa.propertyPath())
.agg(fa.functionId(), fa.propertyPath())
.variable(upper)
.build();
}
aggFilter = new AggFilter(((NamedExpression) r.value()).id().toString(), new ScriptTemplate(template, params, DataTypes.BOOLEAN));
}
//
// WHERE
//
else {
// typical range
if (at instanceof FieldAttribute) {
RangeQuery rangeQuery = new RangeQuery(r.location(), nameOf(r.value()),
valueOf(r.lower()), r.includeLower(), valueOf(r.upper()), r.includeUpper(), dateFormat(r.value()));
query = wrapIfNested(rangeQuery, r.value());
}
}
return new QueryTranslation(query, aggFilter);
}
else {
throw new UnsupportedOperationException("No idea how to translate " + e);
}
}
}
//
// Agg translators
//
static class DistinctCounts extends SingleValueAggTranslator<Count> {
@Override
protected LeafAgg toAgg(String id, String path, Count c) {
if (!c.distinct()) {
return null;
}
return new CardinalityAgg(id, path, field(c));
}
}
static class Sums extends SingleValueAggTranslator<Sum> {
@Override
protected LeafAgg toAgg(String id, String path, Sum s) {
return new SumAgg(id, path, field(s));
}
}
static class Avgs extends SingleValueAggTranslator<Avg> {
@Override
protected LeafAgg toAgg(String id, String path, Avg a) {
return new AvgAgg(id, path, field(a));
}
}
static class Maxes extends SingleValueAggTranslator<Max> {
@Override
protected LeafAgg toAgg(String id, String path, Max m) {
return new MaxAgg(id, path, field(m));
}
}
static class Mins extends SingleValueAggTranslator<Min> {
@Override
protected LeafAgg toAgg(String id, String path, Min m) {
return new MinAgg(id, path, field(m));
}
}
static class DateTimes extends SingleValueAggTranslator<Min> {
@Override
protected LeafAgg toAgg(String id, String path, Min m) {
return new MinAgg(id, path, field(m));
}
}
abstract static class SingleValueAggTranslator<F extends Function> extends AggTranslator<F> {
@Override
protected final LeafAgg asAgg(String id, String parent, F f) {
String path = parent == null ? id : parent + Agg.PATH_DELIMITER + id;
return toAgg(id, path + Agg.PATH_VALUE, f);
}
protected abstract LeafAgg toAgg(String id, String path, F f);
}
abstract static class AggTranslator<F extends Function> {
private final Class<F> typeToken = ReflectionUtils.detectSuperTypeForRuleLike(getClass());
@SuppressWarnings("unchecked")
public final LeafAgg apply(String id, String parent, Function f) {
return (typeToken.isInstance(f) ? asAgg(id, parent, (F) f) : null);
}
protected abstract LeafAgg asAgg(String id, String parent, F f);
}
abstract static class ExppressionTranslator<E extends Expression> {
private final Class<E> typeToken = ReflectionUtils.detectSuperTypeForRuleLike(getClass());
@SuppressWarnings("unchecked")
public QueryTranslation translate(Expression exp, boolean onAggs) {
return (typeToken.isInstance(exp) ? asQuery((E) exp, onAggs) : null);
}
protected abstract QueryTranslation asQuery(E e, boolean onAggs);
protected static Query wrapIfNested(Query query, Expression exp) {
if (exp instanceof NestedFieldAttribute) {
NestedFieldAttribute nfa = (NestedFieldAttribute) exp;
return new NestedQuery(nfa.location(), nfa.parentPath(), query);
}
return query;
}
}
}
// TODO: need to optimize on ngram
// TODO: see whether escaping is needed
class Likes extends ExppressionTranslator<BinaryExpression> {
@Override
protected QueryTranslation asQuery(BinaryExpression e, boolean onAggs) {
Query q = null;
boolean analyzed = true;
String target = null;
if (e.left() instanceof FieldAttribute) {
FieldAttribute fa = (FieldAttribute) e.left();
analyzed = fa.isAnalyzed();
target = nameOf(analyzed ? fa : fa.notAnalyzedAttribute());
}
String pattern = sqlToEsPatternMatching(valueOf(e.right()));
if (e instanceof Like) {
if (analyzed) {
q = new QueryStringQuery(e.location(), pattern, target);
}
else {
q = new WildcardQuery(e.location(), nameOf(e.left()), pattern);
}
}
if (e instanceof RLike) {
if (analyzed) {
q = new QueryStringQuery(e.location(), "/" + pattern + "/", target);
}
else {
q = new RegexQuery(e.location(), nameOf(e.left()), sqlToEsPatternMatching(valueOf(e.right())));
}
}
return q != null ? new QueryTranslation(wrapIfNested(q, e.left())) : null;
}
private static String sqlToEsPatternMatching(String pattern) {
return pattern.replace("%", "*").replace("_", "?");
}
private static boolean hasMatchingPattern(String pattern) {
return pattern.contains("*") || pattern.contains("?");
}
}
class StringQueries extends ExppressionTranslator<StringQueryPredicate> {
@Override
protected QueryTranslation asQuery(StringQueryPredicate q, boolean onAggs) {
return new QueryTranslation(new QueryStringQuery(q.location(), q.query(), q.fields(), q));
}
}
class Matches extends ExppressionTranslator<MatchQueryPredicate> {
@Override
protected QueryTranslation asQuery(MatchQueryPredicate q, boolean onAggs) {
return new QueryTranslation(wrapIfNested(new MatchQuery(q.location(), nameOf(q.field()), q.query(), q), q.field()));
}
}
class MultiMatches extends ExppressionTranslator<MultiMatchQueryPredicate> {
@Override
protected QueryTranslation asQuery(MultiMatchQueryPredicate q, boolean onAggs) {
return new QueryTranslation(new MultiMatchQuery(q.location(), q.query(), q.fields(), q));
}
}
class BinaryLogic extends ExppressionTranslator<BinaryExpression> {
@Override
protected QueryTranslation asQuery(BinaryExpression e, boolean onAggs) {
if (e instanceof And) {
return and(e.location(), toQuery(e.left(), onAggs), toQuery(e.right(), onAggs));
}
if (e instanceof Or) {
return or(e.location(), toQuery(e.left(), onAggs), toQuery(e.right(), onAggs));
}
return null;
}
}
class Nots extends ExppressionTranslator<Not> {
@Override
protected QueryTranslation asQuery(Not not, boolean onAggs) {
QueryTranslation translation = toQuery(not.child(), onAggs);
return new QueryTranslation(not(translation.query), translation.aggFilter);
}
}
// assume the Optimizer properly orders the predicates to ease the translation
class BinaryComparisons extends ExppressionTranslator<BinaryComparison> {
@Override
protected QueryTranslation asQuery(BinaryComparison bc, boolean onAggs) {
Assert.isTrue(bc.right() instanceof Literal, "don't know how to translate right %s in %s", bc.right().nodeString(), bc);
if (bc.left() instanceof NamedExpression) {
NamedExpression ne = (NamedExpression) bc.left();
Query query = null;
AggFilter aggFilter = null;
Attribute at = ne.toAttribute();
// scalar function can appear in both WHERE and HAVING so handle it first
// in both cases the function script is used - script-query/query for the former, bucket-selector/aggFilter for the latter
if (at instanceof ScalarFunctionAttribute) {
ScalarFunctionAttribute sfa = (ScalarFunctionAttribute) at;
ScriptTemplate scriptTemplate = sfa.script();
String template = formatTemplate("%s %s {}", scriptTemplate.template(), bc.symbol());
// no need to bind the wrapped/target agg - it is already available through the nested script (needed to create the script itself)
Params params = paramsBuilder().script(scriptTemplate.params()).variable(valueOf(bc.right())).build();
ScriptTemplate script = new ScriptTemplate(template, params, DataTypes.BOOLEAN);
if (onAggs) {
aggFilter = new AggFilter(at.id().toString(), script);
}
else {
query = new ScriptQuery(at.location(), script);
}
}
//
// Agg context means HAVING -> PipelineAggs
//
else if (onAggs) {
String template = null;
Params params = null;
// agg function
if (at instanceof AggregateFunctionAttribute) {
AggregateFunctionAttribute fa = (AggregateFunctionAttribute) at;
// TODO: handle case where both sides of the comparison are functions
template = formatTemplate("{} %s {}", bc.symbol());
// bind the agg and the variable to the script
params = paramsBuilder().agg(fa.functionId(), fa.propertyPath()).variable(valueOf(bc.right())).build();
}
aggFilter = new AggFilter(at.id().toString(), new ScriptTemplate(template, params, DataTypes.BOOLEAN));
}
//
// No Agg context means WHERE clause
//
else {
if (at instanceof FieldAttribute) {
query = wrapIfNested(translateQuery(bc), ne);
}
}
return new QueryTranslation(query, aggFilter);
}
else {
throw new UnsupportedOperationException("No idea how to translate " + bc.left());
}
}
private static Query translateQuery(BinaryComparison bc) {
Location loc = bc.location();
String name = nameOf(bc.left());
Object value = valueOf(bc.right());
String format = dateFormat(bc.left());
if (bc instanceof GreaterThan) {
return new RangeQuery(loc, name, value, false, null, false, format);
}
if (bc instanceof GreaterThanOrEqual) {
return new RangeQuery(loc, name, value, true, null, false, format);
}
if (bc instanceof LessThan) {
return new RangeQuery(loc, name, null, false, value, false, format);
}
if (bc instanceof LessThanOrEqual) {
return new RangeQuery(loc, name, null, false, value, true, format);
}
if (bc instanceof Equals) {
if (bc.left() instanceof FieldAttribute) {
FieldAttribute fa = (FieldAttribute) bc.left();
if (fa.isAnalyzed()) {
return new MatchQuery(loc, name, value);
}
}
return new TermQuery(loc, name, value);
}
Assert.isTrue(false, "don't know how to translate binary comparison %s in %s", bc.right().nodeString(), bc);
return null;
}
}
class Ranges extends ExppressionTranslator<Range> {
@Override
protected QueryTranslation asQuery(Range r, boolean onAggs) {
Object lower = valueOf(r.lower());
Object upper = valueOf(r.upper());
Expression e = r.value();
if (e instanceof NamedExpression) {
NamedExpression ne = (NamedExpression) e;
Query query = null;
AggFilter aggFilter = null;
Attribute at = ne.toAttribute();
// scalar function can appear in both WHERE and HAVING so handle it first
// in both cases the function script is used - script-query/query for the former, bucket-selector/aggFilter for the latter
if (at instanceof ScalarFunctionAttribute) {
ScalarFunctionAttribute sfa = (ScalarFunctionAttribute) at;
ScriptTemplate scriptTemplate = sfa.script();
String template = formatTemplate("({} %s %s) && (%s %s {})",
r.includeLower() ? "<=" : "<",
scriptTemplate.template(),
scriptTemplate.template(),
r.includeUpper() ? "<=" : "<");
// no need to bind the wrapped/target - it is already available through the nested script (needed to create the script itself)
Params params = paramsBuilder().variable(lower)
.script(scriptTemplate.params())
.script(scriptTemplate.params())
.variable(upper)
.build();
ScriptTemplate script = new ScriptTemplate(template, params, DataTypes.BOOLEAN);
if (onAggs) {
aggFilter = new AggFilter(at.id().toString(), script);
}
else {
query = new ScriptQuery(at.location(), script);
}
}
//
// HAVING
//
else if (onAggs) {
String template = null;
Params params = null;
// agg function
if (at instanceof AggregateFunctionAttribute) {
AggregateFunctionAttribute fa = (AggregateFunctionAttribute) at;
template = formatTemplate("{} %s {} && {} %s {}",
r.includeLower() ? "<=" : "<",
r.includeUpper() ? "<=" : "<");
params = paramsBuilder().variable(lower)
.agg(fa.functionId(), fa.propertyPath())
.agg(fa.functionId(), fa.propertyPath())
.variable(upper)
.build();
}
aggFilter = new AggFilter(((NamedExpression) r.value()).id().toString(), new ScriptTemplate(template, params, DataTypes.BOOLEAN));
}
//
// WHERE
//
else {
// typical range
if (at instanceof FieldAttribute) {
RangeQuery rangeQuery = new RangeQuery(r.location(), nameOf(r.value()),
valueOf(r.lower()), r.includeLower(), valueOf(r.upper()), r.includeUpper(), dateFormat(r.value()));
query = wrapIfNested(rangeQuery, r.value());
}
}
return new QueryTranslation(query, aggFilter);
}
else {
throw new UnsupportedOperationException("No idea how to translate " + e);
}
}
}
//
// Agg translators
//
class DistinctCounts extends SingleValueAggTranslator<Count> {
@Override
protected LeafAgg toAgg(String id, String path, Count c) {
if (!c.distinct()) {
return null;
}
return new CardinalityAgg(id, path, field(c));
}
}
class Sums extends SingleValueAggTranslator<Sum> {
@Override
protected LeafAgg toAgg(String id, String path, Sum s) {
return new SumAgg(id, path, field(s));
}
}
class Avgs extends SingleValueAggTranslator<Avg> {
@Override
protected LeafAgg toAgg(String id, String path, Avg a) {
return new AvgAgg(id, path, field(a));
}
}
class Maxes extends SingleValueAggTranslator<Max> {
@Override
protected LeafAgg toAgg(String id, String path, Max m) {
return new MaxAgg(id, path, field(m));
}
}
class Mins extends SingleValueAggTranslator<Min> {
@Override
protected LeafAgg toAgg(String id, String path, Min m) {
return new MinAgg(id, path, field(m));
}
}
class DateTimes extends SingleValueAggTranslator<Min> {
@Override
protected LeafAgg toAgg(String id, String path, Min m) {
return new MinAgg(id, path, field(m));
}
}
abstract class SingleValueAggTranslator<F extends Function> extends AggTranslator<F> {
@Override
protected final LeafAgg asAgg(String id, String parent, F f) {
String path = parent == null ? id : parent + Agg.PATH_DELIMITER + id;
return toAgg(id, path + Agg.PATH_VALUE, f);
}
protected abstract LeafAgg toAgg(String id, String path, F f);
}
abstract class AggTranslator<F extends Function> {
private final Class<F> typeToken = ReflectionUtils.detectSuperTypeForRuleLike(getClass());
@SuppressWarnings("unchecked")
public final LeafAgg apply(String id, String parent, Function f) {
return (typeToken.isInstance(f) ? asAgg(id, parent, (F) f) : null);
}
protected abstract LeafAgg asAgg(String id, String parent, F f);
}
abstract class ExppressionTranslator<E extends Expression> {
private final Class<E> typeToken = ReflectionUtils.detectSuperTypeForRuleLike(getClass());
@SuppressWarnings("unchecked")
public QueryTranslation translate(Expression exp, boolean onAggs) {
return (typeToken.isInstance(exp) ? asQuery((E) exp, onAggs) : null);
}
protected abstract QueryTranslation asQuery(E e, boolean onAggs);
protected static Query wrapIfNested(Query query, Expression exp) {
if (exp instanceof NestedFieldAttribute) {
NestedFieldAttribute nfa = (NestedFieldAttribute) exp;
return new NestedQuery(nfa.location(), nfa.parentPath(), query);
}
return query;
}
}

2
plugin/src/main/java/org/elasticsearch/xpack/sql/planner/Verifier.java
View File

@ -20,7 +20,7 @@ abstract class Verifier {
private final Node<?> source;
private final String message;
public Failure(Node<?> source, String message) {
Failure(Node<?> source, String message) {
this.source = source;
this.message = message + " " + source.nodeString();
}

2
plugin/src/main/java/org/elasticsearch/xpack/sql/session/EmptyRowSetCursor.java
View File

@ -9,7 +9,7 @@ import org.elasticsearch.xpack.sql.type.Schema;
class EmptyRowSetCursor extends AbstractRowSetCursor {
public EmptyRowSetCursor(Schema schema) {
EmptyRowSetCursor(Schema schema) {
super(schema, null);
}

2
plugin/src/main/java/org/elasticsearch/xpack/sql/type/Schema.java
View File

@ -20,7 +20,7 @@ import static java.util.Collections.emptyList;
public class Schema implements Iterable<Entry> {
public static interface Entry {
public interface Entry {
String name();
DataType type();
}