1 files changed, 0 insertions, 123 deletions
diff --git a/controlloop/common/controller-tdjam/src/main/java/org/onap/policy/controlloop/tdjam/SerialWorkQueue.java b/controlloop/common/controller-tdjam/src/main/java/org/onap/policy/controlloop/tdjam/SerialWorkQueue.java
deleted file mode 100644
index 7d83765a3..000000000
--- a/controlloop/common/controller-tdjam/src/main/java/org/onap/policy/controlloop/tdjam/SerialWorkQueue.java
+++ /dev/null
@@ -1,123 +0,0 @@
-/*-
- * ============LICENSE_START=======================================================
- * ONAP
- * ================================================================================
- * Copyright (C) 2020 AT&T Intellectual Property. All rights reserved.
- * ================================================================================
- * 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.
- * ============LICENSE_END=========================================================
- */
-
-package org.onap.policy.controlloop.tdjam;
-
-import java.util.LinkedList;
-import lombok.Getter;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * This class provides a way to handle synchronization, with minimal blocking. Requests
- * are queued until {@link #start()} is invoked.
- */
-public class SerialWorkQueue {
-    private static Logger logger = LoggerFactory.getLogger(SerialWorkQueue.class);
-
-    // current work list
-    private LinkedList<Runnable> workQueue;
-
-    @Getter
-    private boolean running = false;
-
-    /**
-     * Constructor - no initial Runnable.
-     */
-    public SerialWorkQueue() {
-        workQueue = new LinkedList<>();
-    }
-
-    /**
-     * Constructor - initial 'Runnable' is specified.
-     *
-     * @param runnable an initial 'Runnnable' to run
-     */
-    public SerialWorkQueue(Runnable runnable) {
-        workQueue = new LinkedList<>();
-        workQueue.add(runnable);
-    }
-
-    /**
-     * Starts the queue. If the current thread is the first to start it, then the current
-     * thread will process any requests in the queue before returning.
-     */
-    public void start() {
-        Runnable item;
-
-        synchronized (this) {
-            if (running) {
-                // already running
-                return;
-            }
-
-            running = true;
-            item = workQueue.peekFirst();
-        }
-
-        if (item != null) {
-            processQueue(item);
-        }
-    }
-
-    /**
-     * Called to add a 'Runnable' to the work queue. If the queue was empty, the current
-     * thread is used to process the queue.
-     *
-     * @param work the Runnable to be queued, and eventually run
-     */
-    public void queueAndRun(Runnable work) {
-        synchronized (this) {
-            workQueue.add(work);
-            if (!running || workQueue.size() > 1) {
-                // there was already work in the queue, so presumably there is
-                // already an associated thread running
-                return;
-            }
-            // if we reach this point, the queue was empty when this method was
-            // called, so this thread will process the queue
-        }
-
-        processQueue(work);
-    }
-
-    /**
-     * Internal method to process the work queue until it is empty. Note that entries
-     * could be added by this thread or another one while we are working.
-     *
-     * @param firstItem the first item in the queue
-     */
-    private void processQueue(Runnable firstItem) {
-        Runnable next = firstItem;
-        while (next != null) {
-            try {
-                next.run();
-            } catch (Exception e) {
-                logger.error("SerialWorkQueue.processQueue exception", e);
-            }
-
-            synchronized (this) {
-                // remove the job we just ran
-                workQueue.removeFirst();
-                next = workQueue.peekFirst();
-            }
-        }
-    }
-}