search and unsharing of files

core/src/main/groovy/com/muwire/core/files/FileManager.groovy

@@ -4,6 +4,7 @@ import com.muwire.core.EventBus
 import com.muwire.core.SharedFile
 import com.muwire.core.search.ResultsEvent
 import com.muwire.core.search.SearchEvent
+import com.muwire.core.search.SearchIndex
 
 class FileManager {
 
@@ -11,12 +12,15 @@ class FileManager {
 	final EventBus eventBus
 	final Map<byte[], Set<SharedFile>> rootToFiles = new HashMap<>()
 	final Map<File, SharedFile> fileToSharedFile = new HashMap<>()
+	final Map<String, Set<File>> nameToFiles = new HashMap<>()
+	final SearchIndex index = new SearchIndex()
 	
 	FileManager(EventBus eventBus) {
 		this.eventBus = eventBus
 	}
 	
 	void onFileHashedEvent(FileHashedEvent e) {
+		if (e.sharedFile != null)
 			addToIndex(e.sharedFile)
 	}
 	
@@ -37,6 +41,41 @@ class FileManager {
 		}
 		existing.add(sf)
 		fileToSharedFile.put(sf.file, sf)
+		
+		String name = sf.getFile().getName()
+		Set<File> existingFiles = nameToFiles.get(name)
+		if (existingFiles == null) {
+			existingFiles = new HashSet<>()
+			nameToFiles.put(name, existingFiles)
+		}
+		existingFiles.add(sf.getFile())
+		
+		index.add(name)
+	}
+	
+	void onFileUnsharedEvent(FileUnsharedEvent e) {
+		SharedFile sf = e.unsharedFile
+		byte [] root = sf.getInfoHash().getRoot()
+		Set<SharedFile> existing = rootToFiles.get(root)
+		if (existing != null) {
+			existing.remove(sf)
+			if (existing.isEmpty()) {
+				rootToFiles.remove(root)
+			}
+		}
+		
+		fileToSharedFile.remove(sf.file)
+		
+		String name = sf.getFile().getName()
+		Set<File> existingFiles = nameToFiles.get(name)
+		if (existingFiles != null) {
+			existingFiles.remove(sf.file)
+			if (existingFiles.isEmpty()) {
+				nameToFiles.remove(name)
+			}
+		}
+		
+		index.remove(name)
 	}
 	
 	Map<File, SharedFile> getSharedFiles() {
@@ -52,7 +91,14 @@ class FileManager {
 			if (found != null && !found.isEmpty())
 				re = new ResultsEvent(results: found.asList(), uuid: e.uuid)
 		} else {
-			// TODO: keyword search
+			def names = index.search e.searchTerms
+			Set<File> files = new HashSet<>()
+			names.each { files.addAll nameToFiles.getOrDefault(it, []) }
+			Set<SharedFile> sharedFiles = new HashSet<>()
+			files.each { sharedFiles.add fileToSharedFile[it] }
+			if (!sharedFiles.isEmpty())
+				re = new ResultsEvent(results: sharedFiles.asList(), uuid: e.uuid)
+			
 		}
 		
 		if (re != null)

core/src/main/groovy/com/muwire/core/search/SearchEvent.groovy

@@ -4,7 +4,7 @@ import com.muwire.core.Event
 
 class SearchEvent extends Event {
 
-	String[] searchTerms
+	List<String> searchTerms
 	byte [] searchHash
 	UUID uuid
 }

core/src/test/groovy/com/muwire/core/files/FileManagerTest.groovy

@@ -0,0 +1,179 @@
+package com.muwire.core.files
+
+import org.junit.Before
+import org.junit.Test
+
+import com.muwire.core.EventBus
+import com.muwire.core.InfoHash
+import com.muwire.core.SharedFile
+import com.muwire.core.search.ResultsEvent
+import com.muwire.core.search.SearchEvent
+
+class FileManagerTest {
+
+	EventBus eventBus
+	
+	FileManager manager
+	ResultsEvent results
+	
+	def listener = new Object() {
+		void onResultsEvent(ResultsEvent e) {
+			results = e
+		}
+	}
+	
+	@Before
+	void before() {
+		eventBus = new EventBus()
+		eventBus.register(ResultsEvent.class, listener)
+		manager = new FileManager(eventBus)
+		results = null
+	}
+	
+	@Test
+	void testHash1Result() {
+		File f = new File("a b.c")
+		InfoHash ih = InfoHash.fromHashList(new byte[32])
+		SharedFile sf = new SharedFile(f,ih)
+		FileHashedEvent fhe = new FileHashedEvent(sharedFile: sf)
+		manager.onFileHashedEvent(fhe)
+		
+		UUID uuid = UUID.randomUUID()
+		SearchEvent se = new SearchEvent(searchHash: ih.getRoot(), uuid: uuid)
+		
+		manager.onSearchEvent(se)
+		
+		assert results != null
+		assert results.results.size() == 1
+		assert results.results.contains(sf)
+		assert results.uuid == uuid
+	}
+	
+	@Test
+	void testHash2Results() {
+		InfoHash ih = InfoHash.fromHashList(new byte[32])
+		SharedFile sf1 = new SharedFile(new File("a b.c"), ih)
+		SharedFile sf2 = new SharedFile(new File("d e.f"), ih)
+		manager.onFileLoadedEvent new FileLoadedEvent(loadedFile : sf1)
+		manager.onFileLoadedEvent new FileLoadedEvent(loadedFile : sf2)
+
+		UUID uuid = UUID.randomUUID()
+		SearchEvent se = new SearchEvent(searchHash: ih.getRoot(), uuid: uuid)
+		
+		manager.onSearchEvent(se)
+		
+		assert results != null
+		assert results.results.size() == 2
+		assert results.results.contains(sf1)
+		assert results.results.contains(sf2)
+		assert results.uuid == uuid
+	}
+	
+	@Test
+	void testHash0Results() {
+		File f = new File("a b.c")
+		InfoHash ih = InfoHash.fromHashList(new byte[32])
+		SharedFile sf = new SharedFile(f,ih)
+		FileHashedEvent fhe = new FileHashedEvent(sharedFile: sf)
+		manager.onFileHashedEvent(fhe)
+		
+		manager.onSearchEvent new SearchEvent(searchHash: new byte[32], uuid: UUID.randomUUID())
+		
+		assert results == null
+	}
+	
+	@Test
+	void testKeyword1Result() {
+		File f = new File("a b.c")
+		InfoHash ih = InfoHash.fromHashList(new byte[32])
+		SharedFile sf = new SharedFile(f,ih)
+		FileHashedEvent fhe = new FileHashedEvent(sharedFile: sf)
+		manager.onFileHashedEvent(fhe)
+		
+		UUID uuid = UUID.randomUUID()
+		manager.onSearchEvent new SearchEvent(searchTerms: ["a"], uuid:uuid)
+		
+		assert results != null
+		assert results.results.size() == 1
+		assert results.results.contains(sf)
+		assert results.uuid == uuid		
+	}
+	
+	@Test
+	void testKeyword2Results() {
+		File f1 = new File("a b.c")
+		InfoHash ih1 = InfoHash.fromHashList(new byte[32])
+		SharedFile sf1 = new SharedFile(f1, ih1)
+		manager.onFileLoadedEvent new FileLoadedEvent(loadedFile: sf1)
+		
+		File f2 = new File("c d.e")
+		InfoHash ih2 = InfoHash.fromHashList(new byte[64])
+		SharedFile sf2 = new SharedFile(f2, ih2)
+		manager.onFileLoadedEvent new FileLoadedEvent(loadedFile: sf2)
+		
+		UUID uuid = UUID.randomUUID()
+		manager.onSearchEvent new SearchEvent(searchTerms: ["c"], uuid:uuid)
+		
+		assert results != null
+		assert results.results.size() == 2
+		assert results.results.contains(sf1)
+		assert results.results.contains(sf2)
+		assert results.uuid == uuid
+	}
+	
+	@Test
+	void testKeyword0Results() {
+		File f = new File("a b.c")
+		InfoHash ih = InfoHash.fromHashList(new byte[32])
+		SharedFile sf = new SharedFile(f,ih)
+		FileHashedEvent fhe = new FileHashedEvent(sharedFile: sf)
+		manager.onFileHashedEvent(fhe)
+		
+		manager.onSearchEvent new SearchEvent(searchTerms: ["d"], uuid: UUID.randomUUID())
+		
+		assert results == null
+	}
+	
+	@Test
+	void testRemoveFileExistingHash() {
+		InfoHash ih = InfoHash.fromHashList(new byte[32])
+		SharedFile sf1 = new SharedFile(new File("a b.c"), ih)
+		SharedFile sf2 = new SharedFile(new File("d e.f"), ih)
+		manager.onFileLoadedEvent new FileLoadedEvent(loadedFile : sf1)
+		manager.onFileLoadedEvent new FileLoadedEvent(loadedFile : sf2)
+		
+		manager.onFileUnsharedEvent new FileUnsharedEvent(unsharedFile: sf2)
+		
+		manager.onSearchEvent new SearchEvent(searchHash : ih.getRoot())
+		assert results != null
+		assert results.results.size() == 1
+		assert results.results.contains(sf1)
+	}
+	
+	@Test
+	void testRemoveFile() {
+		File f1 = new File("a b.c")
+		InfoHash ih1 = InfoHash.fromHashList(new byte[32])
+		SharedFile sf1 = new SharedFile(f1, ih1)
+		manager.onFileLoadedEvent new FileLoadedEvent(loadedFile: sf1)
+		
+		File f2 = new File("c d.e")
+		InfoHash ih2 = InfoHash.fromHashList(new byte[64])
+		SharedFile sf2 = new SharedFile(f2, ih2)
+		manager.onFileLoadedEvent new FileLoadedEvent(loadedFile: sf2)
+		
+		manager.onFileUnsharedEvent new FileUnsharedEvent(unsharedFile: sf2)
+		
+		// 1 match left
+		manager.onSearchEvent new SearchEvent(searchTerms: ["c"])
+		assert results != null
+		assert results.results.size() == 1
+		assert results.results.contains(sf1)
+		
+		// no match
+		results = null
+		manager.onSearchEvent new SearchEvent(searchTerms: ["d"])
+		assert results == null
+		
+	}
+}