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Merge pull request #100 from JetBrains/adopt-orientdb-old-links
Adopt orientdb old links
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...en-api/src/main/kotlin/jetbrains/exodus/database/TransientEntityOriginalValuesProvider.kt
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| @@ -0,0 +1,26 @@ | ||
| /** | ||
| * Copyright 2006 - 2024 JetBrains s.r.o. | ||
| * | ||
| * 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 | ||
| * | ||
| * https://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. | ||
| */ | ||
| package jetbrains.exodus.database | ||
|
|
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| import jetbrains.exodus.entitystore.Entity | ||
| import java.io.InputStream | ||
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| interface TransientEntityOriginalValuesProvider { | ||
| fun getOriginalPropertyValue(e: TransientEntity, propertyName: String): Comparable<*>? | ||
| fun getOriginalBlobStringValue(e: TransientEntity, blobName: String): String? | ||
| fun getOriginalBlobValue(e: TransientEntity, blobName: String): InputStream? | ||
| fun getOriginalLinkValue(e: TransientEntity, linkName: String): Entity? | ||
| } |
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91 changes: 91 additions & 0 deletions
91
...in/kotlin/com/jetbrains/teamsys/dnq/database/TransientEntityOriginalValuesProviderImpl.kt
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| /** | ||
| * Copyright 2006 - 2024 JetBrains s.r.o. | ||
| * | ||
| * 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 | ||
| * | ||
| * https://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. | ||
| */ | ||
| package com.jetbrains.teamsys.dnq.database | ||
|
|
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| import com.orientechnologies.orient.core.db.ODatabaseSession | ||
| import com.orientechnologies.orient.core.record.OVertex | ||
| import com.orientechnologies.orient.core.record.impl.ORecordBytes | ||
| import jetbrains.exodus.database.LinkChangeType | ||
| import jetbrains.exodus.database.TransientEntity | ||
| import jetbrains.exodus.database.TransientEntityOriginalValuesProvider | ||
| import jetbrains.exodus.database.TransientStoreSession | ||
| import jetbrains.exodus.entitystore.Entity | ||
| import jetbrains.exodus.entitystore.orientdb.OComparableSet | ||
| import jetbrains.exodus.util.UTFUtil | ||
| import java.io.ByteArrayInputStream | ||
| import java.io.InputStream | ||
|
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| class TransientEntityOriginalValuesProviderImpl(private val session: TransientStoreSession) : TransientEntityOriginalValuesProvider { | ||
| private val transientChangesTracker get() = session.transientChangesTracker | ||
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| override fun getOriginalPropertyValue(e: TransientEntity, propertyName: String): Comparable<*>? { | ||
| val session = ODatabaseSession.getActiveSession() | ||
| val id = e.entity.id.asOId() | ||
| val oVertex = session.load<OVertex>(id) | ||
| val onLoadValue = oVertex.getPropertyOnLoadValue<Any>(propertyName) | ||
| return if (onLoadValue is MutableSet<*>) { | ||
| OComparableSet(onLoadValue) | ||
| } else { | ||
| onLoadValue as Comparable<*>? | ||
| } | ||
| } | ||
|
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| override fun getOriginalBlobStringValue(e: TransientEntity, blobName: String): String? { | ||
| val session = ODatabaseSession.getActiveSession() | ||
| val id = e.entity.id.asOId() | ||
| val oVertex = session.load<OVertex>(id) | ||
| val blobHolder = oVertex.getPropertyOnLoadValue<ORecordBytes?>(blobName) | ||
| return blobHolder?.toStream()?.let { | ||
| UTFUtil.readUTF((it).inputStream()) | ||
| } | ||
| } | ||
|
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| override fun getOriginalBlobValue(e: TransientEntity, blobName: String): InputStream? { | ||
| val session = ODatabaseSession.getActiveSession() | ||
| val id = e.entity.id.asOId() | ||
| val oVertex = session.load<OVertex>(id) | ||
| val blobHolder = oVertex.getPropertyOnLoadValue<ORecordBytes?>(blobName) | ||
| return blobHolder?.let { | ||
| ByteArrayInputStream(blobHolder.toStream()) | ||
| } | ||
| } | ||
|
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| override fun getOriginalLinkValue(e: TransientEntity, linkName: String): Entity? { | ||
| // get from saved changes, if not - from db | ||
| val change = transientChangesTracker.getChangedLinksDetailed(e)?.get(linkName) | ||
| if (change != null) { | ||
| when (change.changeType) { | ||
| LinkChangeType.ADD_AND_REMOVE, | ||
| LinkChangeType.REMOVE -> { | ||
| return if (change.removedEntitiesSize != 1) { | ||
| if (change.deletedEntitiesSize == 1) { | ||
| change.deletedEntities!!.iterator().next() | ||
| } else { | ||
| throw IllegalStateException("Can't determine original link value: ${e.type}.$linkName") | ||
| } | ||
| } else { | ||
| change.removedEntities!!.iterator().next() | ||
| } | ||
| } | ||
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| else -> | ||
| throw IllegalStateException("Incorrect change type for link that is part of index: ${e.type}.$linkName: ${change.changeType.getName()}") | ||
| } | ||
| } | ||
| return e.entity.getLink(linkName) | ||
| } | ||
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|
||
| } |
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