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Extract Delete / Insert / Select / Update operations from GeodeBacken…
…d into separate (local) classes
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67 changes: 67 additions & 0 deletions
67
criteria/geode/src/org/immutables/criteria/geode/SyncDelete.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| /* | ||
| * Copyright 2019 Immutables Authors and Contributors | ||
| * | ||
| * Licensed 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.immutables.criteria.geode; | ||
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| import org.apache.geode.cache.Region; | ||
| import org.immutables.criteria.backend.StandardOperations; | ||
| import org.immutables.criteria.backend.WriteResult; | ||
| import org.immutables.criteria.expression.Expression; | ||
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| import java.util.Collection; | ||
| import java.util.List; | ||
| import java.util.Optional; | ||
| import java.util.concurrent.Callable; | ||
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| class SyncDelete implements Callable<WriteResult> { | ||
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| private final GeodeBackend.Session session; | ||
| private final StandardOperations.Delete operation; | ||
| private final Region<Object, Object> region; | ||
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| SyncDelete(GeodeBackend.Session session, StandardOperations.Delete operation) { | ||
| this.session = session; | ||
| this.operation = operation; | ||
| this.region = session.region; | ||
| } | ||
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| @Override | ||
| public WriteResult call() throws Exception { | ||
| if (!operation.query().filter().isPresent()) { | ||
| // no filter means delete all (ie clear whole region) | ||
| region.clear(); | ||
| return WriteResult.unknown(); | ||
| } | ||
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| Expression filter = operation.query().filter().orElseThrow(() -> new IllegalStateException("For " + operation)); | ||
| Optional<List<?>> ids = Geodes.canDeleteByKey(filter, session.idResolver); | ||
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| // list of ids is present in the expression | ||
| if (ids.isPresent()) { | ||
| // delete by key: map.remove(key) | ||
| region.removeAll(ids.get()); | ||
| return WriteResult.unknown(); | ||
| } | ||
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| GeodeQueryVisitor visitor = new GeodeQueryVisitor(true, path -> String.format("e.value.%s", path.toStringPath())); | ||
| OqlWithVariables oql = filter.accept(visitor); | ||
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| String query = String.format("select distinct e.key from %s.entries e where %s", region.getFullPath(), oql.oql()); | ||
| Collection<?> keys = (Collection<?>) session.queryService.newQuery(query).execute(oql.variables().toArray(new Object[0])); | ||
| region.removeAll(keys); | ||
| return GeodeWriteResult.of().withDeletedCount(keys.size()); | ||
| } | ||
| } |
57 changes: 57 additions & 0 deletions
57
criteria/geode/src/org/immutables/criteria/geode/SyncInsert.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| /* | ||
| * Copyright 2019 Immutables Authors and Contributors | ||
| * | ||
| * Licensed 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.immutables.criteria.geode; | ||
|
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| import org.apache.geode.cache.Region; | ||
| import org.immutables.criteria.backend.BackendException; | ||
| import org.immutables.criteria.backend.StandardOperations; | ||
| import org.immutables.criteria.backend.WriteResult; | ||
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| import java.util.Map; | ||
| import java.util.concurrent.Callable; | ||
| import java.util.stream.Collectors; | ||
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| class SyncInsert implements Callable<WriteResult> { | ||
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| private final GeodeBackend.Session session; | ||
| private final StandardOperations.Insert operation; | ||
| private final Region<Object, Object> region; | ||
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| SyncInsert(GeodeBackend.Session session, StandardOperations.Insert operation) { | ||
| this.session = session; | ||
| this.operation = operation; | ||
| this.region = session.region; | ||
| } | ||
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| @Override | ||
| public WriteResult call() throws Exception { | ||
| if (operation.values().isEmpty()) { | ||
| return WriteResult.empty(); | ||
| } | ||
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| final Map<Object, Object> toInsert = operation.values().stream().collect(Collectors.toMap(session.idExtractor::extract, x -> x)); | ||
| final Region<Object, Object> region = this.region; | ||
| for (Map.Entry<Object, Object> entry: toInsert.entrySet()) { | ||
| Object previous = region.putIfAbsent(entry.getKey(), entry.getValue()); | ||
| if (previous != null) { | ||
| throw new BackendException(String.format("Duplicate id %s for %s", entry.getKey(), session.entityType())); | ||
| } | ||
| } | ||
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| return GeodeWriteResult.of().withInsertedCount(toInsert.size()); | ||
| } | ||
| } |
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