Add code to ensure that every ingest job that starts get at least one task

Core/src/org/sleuthkit/autopsy/ingest/DataSourceIngestTaskScheduler.java

@@ -1,72 +0,0 @@
-/*
- * Autopsy Forensic Browser
- * 
- * Copyright 2012-2014 Basis Technology Corp.
- * Contact: carrier <at> sleuthkit <dot> org
- * 
- * 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
- * 
- *     http://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 org.sleuthkit.autopsy.ingest;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-import org.sleuthkit.datamodel.Content;
-
-final class DataSourceIngestTaskScheduler implements IngestTaskQueue {
-
-    private static final DataSourceIngestTaskScheduler instance = new DataSourceIngestTaskScheduler();
-    private final List<DataSourceIngestTask> tasks = new ArrayList<>();  // Guarded by this
-    private final LinkedBlockingQueue<DataSourceIngestTask> tasksQueue = new LinkedBlockingQueue<>();
-
-    static DataSourceIngestTaskScheduler getInstance() {
-        return instance;
-    }
-
-    private DataSourceIngestTaskScheduler() {
-    }
-
-    synchronized void scheduleTask(IngestJob job, Content dataSource) throws InterruptedException {
-        DataSourceIngestTask task = new DataSourceIngestTask(job, dataSource);
-        tasks.add(task);
-        try {
-            // Should not block, queue is (theoretically) unbounded.
-            tasksQueue.put(task);
-        } catch (InterruptedException ex) {
-            tasks.remove(task);
-            Logger.getLogger(DataSourceIngestTaskScheduler.class.getName()).log(Level.FINE, "Interruption of unexpected block on tasks queue", ex); //NON-NLS
-            throw ex;
-        }
-    }
-
-    @Override
-    public IngestTask getNextTask() throws InterruptedException {
-        return tasksQueue.take();
-    }
-
-    synchronized void notifyTaskCompleted(DataSourceIngestTask task) {
-        tasks.remove(task);
-    }
-
-    synchronized boolean hasIncompleteTasksForIngestJob(IngestJob job) {
-        long jobId = job.getId();
-        for (DataSourceIngestTask task : tasks) {
-            if (task.getIngestJob().getId() == jobId) {
-                return true;
-            }
-        }
-        return false;
-    }
-}