MinimalBible/app/src/main/kotlin/org/bspeice/minimalbible/activity/search/MBIndexManager.kt

51 lines
1.9 KiB
Kotlin

package org.bspeice.minimalbible.activity.search
import org.crosswire.jsword.index.IndexManager
import org.crosswire.jsword.book.Book
import android.util.Log
import rx.schedulers.Schedulers
import rx.Observable
import org.crosswire.jsword.index.IndexStatus
import rx.subjects.ReplaySubject
/**
* There's already an IndexManager, that's why the funky name
*/
class MBIndexManager(val indexManager: IndexManager) {
fun shouldIndex(b: Book) = b.getIndexStatus() == IndexStatus.UNDONE ||
b.getIndexStatus() == IndexStatus.INVALID
fun indexReady(b: Book) = b.getIndexStatus() == IndexStatus.DONE
/**
* Do the hard work of actually building the book index.
* Returns a PublishSubject<> that completes when the
* index is complete. Also is nice enough to broadcast
* what work is being done when.
*/
fun buildIndex(b: Book): ReplaySubject<IndexStatus> {
if (!shouldIndex(b)) {
// Log.e("MBIndexManager", "Current status is ${b.getIndexStatus()}, not creating index")
throw IllegalStateException("Don't try and index a book that should not get it.")
}
val indexStatus: ReplaySubject<IndexStatus> = ReplaySubject.create();
Observable.just(b)
.observeOn(Schedulers.computation())
.subscribe({
indexStatus.onNext(b.getIndexStatus())
// Log.e("MBIndexManager", "Building index for ${b.getInitials()}, ${b.getIndexStatus()}")
indexManager scheduleIndexCreation b
// Log.e("MBIndexManager", "Done building index for ${b.getInitials()}, ${b.getIndexStatus()}")
indexStatus.onNext(b.getIndexStatus())
indexStatus.onCompleted()
}, { Log.e("MBIndexManager", "Exception building index: $it", it) })
return indexStatus
}
fun removeIndex(b: Book) = indexManager.deleteIndex(b)
}