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| 1 | +// |
| 2 | +// Source code recreated from a .class file by IntelliJ IDEA |
| 3 | +// (powered by FernFlower decompiler) |
| 4 | +// |
| 5 | + |
| 6 | +package com.querydsl.couchbase; |
| 7 | + |
| 8 | +import com.mysema.commons.lang.CloseableIterator; |
| 9 | +import com.querydsl.core.DefaultQueryMetadata; |
| 10 | +import com.querydsl.core.Fetchable; |
| 11 | +import com.querydsl.core.JoinExpression; |
| 12 | +import com.querydsl.core.NonUniqueResultException; |
| 13 | +import com.querydsl.core.QueryMetadata; |
| 14 | +import com.querydsl.core.QueryModifiers; |
| 15 | +import com.querydsl.core.QueryResults; |
| 16 | +import com.querydsl.core.SimpleQuery; |
| 17 | +import com.querydsl.core.support.QueryMixin; |
| 18 | +import com.querydsl.core.types.Expression; |
| 19 | +import com.querydsl.core.types.ExpressionUtils; |
| 20 | +import com.querydsl.core.types.FactoryExpression; |
| 21 | +import com.querydsl.core.types.Operation; |
| 22 | +import com.querydsl.core.types.OrderSpecifier; |
| 23 | +import com.querydsl.core.types.ParamExpression; |
| 24 | +import com.querydsl.core.types.Path; |
| 25 | +import com.querydsl.core.types.Predicate; |
| 26 | +import com.querydsl.core.types.dsl.CollectionPathBase; |
| 27 | +import java.util.ArrayList; |
| 28 | +import java.util.Collection; |
| 29 | +import java.util.Collections; |
| 30 | +import java.util.HashMap; |
| 31 | +import java.util.Iterator; |
| 32 | +import java.util.List; |
| 33 | +import java.util.Map; |
| 34 | +import java.util.function.Function; |
| 35 | + |
| 36 | +import com.querydsl.couchbase.document.CouchbaseDocumentSerializer; |
| 37 | +import org.jetbrains.annotations.Nullable; |
| 38 | +import org.springframework.data.couchbase.core.mapping.CouchbaseDocument; |
| 39 | + |
| 40 | +public abstract class AbstractCouchbaseQuery<K, Q extends AbstractCouchbaseQuery<K, Q>> implements SimpleQuery<Q>, Fetchable<K> { |
| 41 | + private final CouchbaseDocumentSerializer serializer; |
| 42 | + private final QueryMixin<Q> queryMixin = new QueryMixin(this, new DefaultQueryMetadata(), false); |
| 43 | + private final Collection collection; |
| 44 | + private final Function<DBObject, K> transformer; |
| 45 | + |
| 46 | + public AbstractCouchbaseQuery(Collection collection, Function<DBObject, K> transformer, CouchbaseDocumentSerializer serializer) { |
| 47 | + this.transformer = transformer; |
| 48 | + this.collection = collection; |
| 49 | + this.serializer = serializer; |
| 50 | + } |
| 51 | + |
| 52 | + public <T> JoinBuilder<Q, K, T> join(Path<T> ref, Path<T> target) { |
| 53 | + return new JoinBuilder(this.queryMixin, ref, target); |
| 54 | + } |
| 55 | + |
| 56 | + public <T> JoinBuilder<Q, K, T> join(CollectionPathBase<?, T, ?> ref, Path<T> target) { |
| 57 | + return new JoinBuilder(this.queryMixin, ref, target); |
| 58 | + } |
| 59 | + |
| 60 | + public <T> AnyEmbeddedBuilder<Q, K> anyEmbedded(Path<? extends Collection<T>> collection, Path<T> target) { |
| 61 | + return new AnyEmbeddedBuilder(this.queryMixin, collection); |
| 62 | + } |
| 63 | + |
| 64 | + protected abstract com.couchbase.client.java.Collection getCollection(Class<?> var1); |
| 65 | + |
| 66 | + @Nullable |
| 67 | + protected Predicate createFilter(QueryMetadata metadata) { |
| 68 | + Predicate filter; |
| 69 | + if (!metadata.getJoins().isEmpty()) { |
| 70 | + filter = ExpressionUtils.allOf(new Predicate[]{metadata.getWhere(), this.createJoinFilter(metadata)}); |
| 71 | + } else { |
| 72 | + filter = metadata.getWhere(); |
| 73 | + } |
| 74 | + |
| 75 | + return filter; |
| 76 | + } |
| 77 | + |
| 78 | + @Nullable |
| 79 | + protected Predicate createJoinFilter(QueryMetadata metadata) { |
| 80 | + Map<Expression<?>, Predicate> predicates = new HashMap(); |
| 81 | + List<JoinExpression> joins = metadata.getJoins(); |
| 82 | + |
| 83 | + for(int i = joins.size() - 1; i >= 0; --i) { |
| 84 | + JoinExpression join = (JoinExpression)joins.get(i); |
| 85 | + Path<?> source = (Path)((Operation)join.getTarget()).getArg(0); |
| 86 | + Path<?> target = (Path)((Operation)join.getTarget()).getArg(1); |
| 87 | + Predicate extraFilters = (Predicate)predicates.get(target.getRoot()); |
| 88 | + Predicate filter = ExpressionUtils.allOf(new Predicate[]{join.getCondition(), extraFilters}); |
| 89 | + List<? extends Object> ids = this.getIds(target.getType(), filter); |
| 90 | + if (ids.isEmpty()) { |
| 91 | + throw new AbstractCouchbaseQuery.NoResults(); |
| 92 | + } |
| 93 | + |
| 94 | + Path<?> path = ExpressionUtils.path(String.class, source, "$id"); |
| 95 | + predicates.merge(source.getRoot(), ExpressionUtils.in((Expression<Object>)path, ids), ExpressionUtils::and); |
| 96 | + } |
| 97 | + |
| 98 | + Path<?> source = (Path)((Operation)((JoinExpression)joins.get(0)).getTarget()).getArg(0); |
| 99 | + return (Predicate)predicates.get(source.getRoot()); |
| 100 | + } |
| 101 | +/* |
| 102 | + protected List<Object> getIds(Class<?> targetType, Predicate condition) { |
| 103 | + Collection collection = this.getCollection(targetType); |
| 104 | + DBCursor cursor = this.createCursor(collection, condition, (Expression)null, QueryModifiers.EMPTY, Collections.emptyList()); |
| 105 | + if (!cursor.hasNext()) { |
| 106 | + return Collections.emptyList(); |
| 107 | + } else { |
| 108 | + List<Object> ids = new ArrayList(cursor.count()); |
| 109 | + Iterator var6 = cursor.iterator(); |
| 110 | + |
| 111 | + while(var6.hasNext()) { |
| 112 | + DBObject obj = (DBObject)var6.next(); |
| 113 | + ids.add(obj.get("_id")); |
| 114 | + } |
| 115 | + |
| 116 | + return ids; |
| 117 | + } |
| 118 | + } |
| 119 | + */ |
| 120 | + |
| 121 | + public Q distinct() { |
| 122 | + return this.queryMixin.distinct(); |
| 123 | + } |
| 124 | + |
| 125 | + public Q where(Predicate e) { |
| 126 | + return this.queryMixin.where(e); |
| 127 | + } |
| 128 | + |
| 129 | + public Q where(Predicate... e) { |
| 130 | + return this.queryMixin.where(e); |
| 131 | + } |
| 132 | + |
| 133 | + public Q limit(long limit) { |
| 134 | + return this.queryMixin.limit(limit); |
| 135 | + } |
| 136 | + |
| 137 | + public Q offset(long offset) { |
| 138 | + return this.queryMixin.offset(offset); |
| 139 | + } |
| 140 | + |
| 141 | + public Q restrict(QueryModifiers modifiers) { |
| 142 | + return this.queryMixin.restrict(modifiers); |
| 143 | + } |
| 144 | + |
| 145 | + public Q orderBy(OrderSpecifier<?> o) { |
| 146 | + return this.queryMixin.orderBy(o); |
| 147 | + } |
| 148 | + |
| 149 | + public Q orderBy(OrderSpecifier<?>... o) { |
| 150 | + return this.queryMixin.orderBy(o); |
| 151 | + } |
| 152 | + |
| 153 | + public <T> Q set(ParamExpression<T> param, T value) { |
| 154 | + return this.queryMixin.set(param, value); |
| 155 | + } |
| 156 | + |
| 157 | + public CloseableIterator<K> iterate(Path<?>... paths) { |
| 158 | + this.queryMixin.setProjection(paths); |
| 159 | + return this.iterate(); |
| 160 | + } |
| 161 | + |
| 162 | + public CloseableIterator<K> iterate() { |
| 163 | + final DBCursor cursor = this.createCursor(); |
| 164 | + return new CloseableIterator<K>() { |
| 165 | + public boolean hasNext() { |
| 166 | + return cursor.hasNext(); |
| 167 | + } |
| 168 | + |
| 169 | + public K next() { |
| 170 | + return AbstractCouchbaseQuery.this.transformer.apply(cursor.next()); |
| 171 | + } |
| 172 | + |
| 173 | + public void remove() { |
| 174 | + } |
| 175 | + |
| 176 | + public void close() { |
| 177 | + } |
| 178 | + }; |
| 179 | + } |
| 180 | + |
| 181 | + public List<K> fetch(Path<?>... paths) { |
| 182 | + this.queryMixin.setProjection(paths); |
| 183 | + return this.fetch(); |
| 184 | + } |
| 185 | + |
| 186 | + public List<K> fetch() { |
| 187 | + try { |
| 188 | + DBCursor cursor = this.createCursor(); |
| 189 | + List<K> results = new ArrayList(); |
| 190 | + Iterator var3 = cursor.iterator(); |
| 191 | + |
| 192 | + while(var3.hasNext()) { |
| 193 | + DBObject dbObject = (DBObject)var3.next(); |
| 194 | + results.add(this.transformer.apply(dbObject)); |
| 195 | + } |
| 196 | + |
| 197 | + return results; |
| 198 | + } catch (AbstractMongodbQuery.NoResults var5) { |
| 199 | + return Collections.emptyList(); |
| 200 | + } |
| 201 | + } |
| 202 | + |
| 203 | + protected DBCursor createCursor() { |
| 204 | + QueryMetadata metadata = this.queryMixin.getMetadata(); |
| 205 | + Predicate filter = this.createFilter(metadata); |
| 206 | + return this.createCursor(this.collection, filter, metadata.getProjection(), metadata.getModifiers(), metadata.getOrderBy()); |
| 207 | + } |
| 208 | + |
| 209 | + protected DBCursor createCursor(DBCollection collection, @Nullable Predicate where, Expression<?> projection, QueryModifiers modifiers, List<OrderSpecifier<?>> orderBy) { |
| 210 | + DBCursor cursor = collection.find(this.createQuery(where), this.createProjection(projection)); |
| 211 | + Integer limit = modifiers.getLimitAsInteger(); |
| 212 | + Integer offset = modifiers.getOffsetAsInteger(); |
| 213 | + if (limit != null) { |
| 214 | + cursor.limit(limit); |
| 215 | + } |
| 216 | + |
| 217 | + if (offset != null) { |
| 218 | + cursor.skip(offset); |
| 219 | + } |
| 220 | + |
| 221 | + if (orderBy.size() > 0) { |
| 222 | + cursor.sort(this.serializer.toSort(orderBy)); |
| 223 | + } |
| 224 | + |
| 225 | + return cursor; |
| 226 | + } |
| 227 | + |
| 228 | + private DBObject createProjection(Expression<?> projection) { |
| 229 | + if (projection instanceof FactoryExpression) { |
| 230 | + DBObject obj = new CouchbaseDocument(); |
| 231 | + Iterator var3 = ((FactoryExpression)projection).getArgs().iterator(); |
| 232 | + |
| 233 | + while(var3.hasNext()) { |
| 234 | + Object expr = var3.next(); |
| 235 | + if (expr instanceof Expression) { |
| 236 | + obj.put((String)this.serializer.handle((Expression)expr), 1); |
| 237 | + } |
| 238 | + } |
| 239 | + |
| 240 | + return obj; |
| 241 | + } else { |
| 242 | + return null; |
| 243 | + } |
| 244 | + } |
| 245 | + |
| 246 | + public K fetchFirst(Path<?>... paths) { |
| 247 | + this.queryMixin.setProjection(paths); |
| 248 | + return this.fetchFirst(); |
| 249 | + } |
| 250 | + |
| 251 | + public K fetchFirst() { |
| 252 | + try { |
| 253 | + DBCursor c = this.createCursor().limit(1); |
| 254 | + return c.hasNext() ? this.transformer.apply(c.next()) : null; |
| 255 | + } catch (AbstractCouchbaseQuery.NoResults var2) { |
| 256 | + return null; |
| 257 | + } |
| 258 | + } |
| 259 | + |
| 260 | + public K fetchOne(Path<?>... paths) { |
| 261 | + this.queryMixin.setProjection(paths); |
| 262 | + return this.fetchOne(); |
| 263 | + } |
| 264 | + |
| 265 | + public K fetchOne() throws NonUniqueResultException { |
| 266 | + try { |
| 267 | + Long limit = this.queryMixin.getMetadata().getModifiers().getLimit(); |
| 268 | + if (limit == null) { |
| 269 | + limit = 2L; |
| 270 | + } |
| 271 | + |
| 272 | + DBCursor c = this.createCursor().limit(limit.intValue()); |
| 273 | + if (c.hasNext()) { |
| 274 | + K rv = this.transformer.apply(c.next()); |
| 275 | + if (c.hasNext()) { |
| 276 | + throw new NonUniqueResultException(); |
| 277 | + } else { |
| 278 | + return rv; |
| 279 | + } |
| 280 | + } else { |
| 281 | + return null; |
| 282 | + } |
| 283 | + } catch (AbstractCouchbaseQuery.NoResults var4) { |
| 284 | + return null; |
| 285 | + } |
| 286 | + } |
| 287 | + |
| 288 | + public QueryResults<K> fetchResults(Path<?>... paths) { |
| 289 | + this.queryMixin.setProjection(paths); |
| 290 | + return this.fetchResults(); |
| 291 | + } |
| 292 | + |
| 293 | + public QueryResults<K> fetchResults() { |
| 294 | + try { |
| 295 | + long total = this.fetchCount(); |
| 296 | + return total > 0L ? new QueryResults(this.fetch(), this.queryMixin.getMetadata().getModifiers(), total) : QueryResults.emptyResults(); |
| 297 | + } catch (AbstractCouchbaseQuery.NoResults var3) { |
| 298 | + return QueryResults.emptyResults(); |
| 299 | + } |
| 300 | + } |
| 301 | + |
| 302 | + public long fetchCount() { |
| 303 | + try { |
| 304 | + Predicate filter = this.createFilter(this.queryMixin.getMetadata()); |
| 305 | + return this.collection.count(this.createQuery(filter)); |
| 306 | + } catch (AbstractCouchbaseQuery.NoResults var2) { |
| 307 | + return 0L; |
| 308 | + } |
| 309 | + } |
| 310 | + |
| 311 | + private DBObject createQuery(@Nullable Predicate predicate) { |
| 312 | + return (DBObject)(predicate != null ? (DBObject)this.serializer.handle(predicate) : new CouchbaseDocument()); |
| 313 | + } |
| 314 | + |
| 315 | + public DBObject asDBObject() { |
| 316 | + return this.createQuery(this.queryMixin.getMetadata().getWhere()); |
| 317 | + } |
| 318 | + |
| 319 | + public String toString() { |
| 320 | + return this.asDBObject().toString(); |
| 321 | + } |
| 322 | + |
| 323 | + private static class NoResults extends RuntimeException { |
| 324 | + private NoResults() { |
| 325 | + } |
| 326 | + } |
| 327 | +} |
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