/*
* Sone - IdentityLoader.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 .
*/
package net.pterodactylus.sone.freenet.wot
import com.google.common.base.*
import com.google.inject.*
import net.pterodactylus.sone.freenet.plugin.*
import java.util.concurrent.TimeUnit.*
import java.util.logging.*
/**
* Loads [OwnIdentity]s and the [Identity]s they trust.
*/
class IdentityLoader @Inject constructor(private val webOfTrustConnector: WebOfTrustConnector, private val context: Context? = null) {
private val logger: Logger = Logger.getLogger(IdentityLoader::class.java.name)
@Throws(WebOfTrustException::class)
fun loadIdentities() =
time({ stopwatch, identities -> "Loaded ${identities.size} own identities in ${stopwatch.elapsed(MILLISECONDS) / 1000.0}s." }) {
webOfTrustConnector.loadAllOwnIdentities()
}.let(this::loadTrustedIdentitiesForOwnIdentities)
@Throws(PluginException::class)
private fun loadTrustedIdentitiesForOwnIdentities(ownIdentities: Collection) =
ownIdentities
.also { logger.fine { "Getting trusted identities for ${it.size} own identities..." } }
.associateWith { ownIdentity ->
logger.fine { "Getting trusted identities for $ownIdentity..." }
if (ownIdentity.doesNotHaveCorrectContext()) {
logger.fine { "Skipping $ownIdentity because of incorrect context." }
emptySet()
} else {
logger.fine { "Loading trusted identities for $ownIdentity from WoT..." }
time({ stopwatch, identities -> "Loaded ${identities.size} identities for ${ownIdentity.nickname} in ${stopwatch.elapsed(MILLISECONDS) / 1000.0}s." }) {
webOfTrustConnector.loadTrustedIdentities(ownIdentity, context?.context)
}
}
}
private fun OwnIdentity.doesNotHaveCorrectContext() =
context?.let { it.context !in contexts } ?: false
private fun time(logMessage: (Stopwatch, R) -> String, loader: () -> R) =
Stopwatch.createStarted().let { stopwatch ->
loader().also { logger.fine(logMessage(stopwatch, it)) }
}
}