1 files changed, 65 insertions, 0 deletions
diff --git a/context/context-test-utils/src/main/java/org/onap/policy/apex/context/test/lock/modifier/SingleValueWriteLockAlbumModifier.java b/context/context-test-utils/src/main/java/org/onap/policy/apex/context/test/lock/modifier/SingleValueWriteLockAlbumModifier.java
new file mode 100644
index 000000000..a41de8dd7
--- /dev/null
+++ b/context/context-test-utils/src/main/java/org/onap/policy/apex/context/test/lock/modifier/SingleValueWriteLockAlbumModifier.java
@@ -0,0 +1,65 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.policy.apex.context.test.lock.modifier;
+
+import static org.onap.policy.apex.context.test.utils.Constants.TEST_VALUE;
+
+import org.onap.policy.apex.context.ContextAlbum;
+import org.onap.policy.apex.context.ContextException;
+import org.onap.policy.apex.context.test.concepts.TestContextLongItem;
+import org.slf4j.ext.XLogger;
+import org.slf4j.ext.XLoggerFactory;
+
+public class SingleValueWriteLockAlbumModifier implements AlbumModifier {
+    private static final XLogger LOGGER = XLoggerFactory.getXLogger(SingleValueWriteLockAlbumModifier.class);
+
+
+    @Override
+    public void modifyAlbum(final ContextAlbum contextAlbum, final int loopSize, final int arraySize)
+            throws ContextException {
+        for (int i = 0; i < loopSize; i++) {
+            try {
+                contextAlbum.lockForWriting(TEST_VALUE);
+                TestContextLongItem item = (TestContextLongItem) contextAlbum.get(TEST_VALUE);
+                if (item != null) {
+                    long value = item.getLongValue();
+                    item.setLongValue(++value);
+                } else {
+                    item = new TestContextLongItem(0L);
+                }
+                contextAlbum.put(TEST_VALUE, item);
+            } finally {
+                contextAlbum.unlockForWriting(TEST_VALUE);
+            }
+        }
+
+        try {
+            contextAlbum.lockForWriting(TEST_VALUE);
+            final TestContextLongItem item = (TestContextLongItem) contextAlbum.get(TEST_VALUE);
+            final long value = item.getLongValue();
+            LOGGER.info("Value after modification: ", value);
+        } catch (final Exception e) {
+            LOGGER.error("could not read the value in the test context album", e);
+        } finally {
+            contextAlbum.unlockForWriting(TEST_VALUE);
+        }
+    }
+
+}