X-Git-Url: https://git.pterodactylus.net/?p=Sone.git;a=blobdiff_plain;f=src%2Fmain%2Fkotlin%2Fnet%2Fpterodactylus%2Fsone%2Ffreenet%2Fwot%2FIdentityChangeEventSender.kt;fp=src%2Fmain%2Fkotlin%2Fnet%2Fpterodactylus%2Fsone%2Ffreenet%2Fwot%2FIdentityChangeEventSender.kt;h=5ffffa3b24f0f2aef266606f4129cc374e32ac08;hp=0000000000000000000000000000000000000000;hb=d50730f6a330439e0e7ef97ca9329dffe72d5640;hpb=97fe04482ebb8a08e43294acde041c2975cbd8ee

diff --git a/src/main/kotlin/net/pterodactylus/sone/freenet/wot/IdentityChangeEventSender.kt b/src/main/kotlin/net/pterodactylus/sone/freenet/wot/IdentityChangeEventSender.kt
new file mode 100644
index 0000000..5ffffa3
--- /dev/null
+++ b/src/main/kotlin/net/pterodactylus/sone/freenet/wot/IdentityChangeEventSender.kt
@@ -0,0 +1,63 @@
+/*
+ * Sone - IdentityChangeEventSender.java - Copyright © 2013–2019 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sone.freenet.wot
+
+import com.google.common.eventbus.*
+import net.pterodactylus.sone.freenet.wot.event.*
+
+/**
+ * Detects changes in [Identity]s trusted by multiple [OwnIdentity]s.
+ *
+ * @see IdentityChangeDetector
+ */
+class IdentityChangeEventSender(private val eventBus: EventBus, private val oldIdentities: Map<OwnIdentity, Collection<Identity>>) {
+
+	fun detectChanges(identities: Map<OwnIdentity, Collection<Identity>>) {
+		val identityChangeDetector = IdentityChangeDetector(oldIdentities.keys)
+		identityChangeDetector.onNewIdentity = addNewOwnIdentityAndItsTrustedIdentities(identities)
+		identityChangeDetector.onRemovedIdentity = removeOwnIdentityAndItsTrustedIdentities(oldIdentities)
+		identityChangeDetector.onUnchangedIdentity = detectChangesInTrustedIdentities(identities, oldIdentities)
+		identityChangeDetector.detectChanges(identities.keys)
+	}
+
+	private fun addNewOwnIdentityAndItsTrustedIdentities(newIdentities: Map<OwnIdentity, Collection<Identity>>) =
+			{ identity: Identity ->
+				eventBus.post(OwnIdentityAddedEvent(identity as OwnIdentity))
+				newIdentities[identity]
+						?.map { IdentityAddedEvent(identity, it) }
+						?.forEach(eventBus::post) ?: Unit
+			}
+
+	private fun removeOwnIdentityAndItsTrustedIdentities(oldIdentities: Map<OwnIdentity, Collection<Identity>>) =
+			{ identity: Identity ->
+				eventBus.post(OwnIdentityRemovedEvent(identity as OwnIdentity))
+				oldIdentities[identity]
+						?.map { IdentityRemovedEvent(identity, it) }
+						?.forEach(eventBus::post) ?: Unit
+			}
+
+	private fun detectChangesInTrustedIdentities(newIdentities: Map<OwnIdentity, Collection<Identity>>, oldIdentities: Map<OwnIdentity, Collection<Identity>>) =
+			{ ownIdentity: Identity ->
+				val identityChangeDetector = IdentityChangeDetector(oldIdentities[ownIdentity as OwnIdentity]!!)
+				identityChangeDetector.onNewIdentity = { eventBus.post(IdentityAddedEvent(ownIdentity, it)) }
+				identityChangeDetector.onRemovedIdentity = { eventBus.post(IdentityRemovedEvent(ownIdentity, it)) }
+				identityChangeDetector.onChangedIdentity = { eventBus.post(IdentityUpdatedEvent(ownIdentity, it)) }
+				identityChangeDetector.detectChanges(newIdentities[ownIdentity]!!)
+			}
+
+}