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authorStan Bonev <sb5356@att.com>2018-09-14 15:25:55 -0400
committerStan Bonev <sb5356@att.com>2018-09-14 15:25:55 -0400
commitb46892cf1f0374dc18bec49b6a209b0e6a13ba1a (patch)
tree89611268841267cd648aa8afdc522b120fd3a14a /resource-assignment/provider/src/main/java/org
parent85dcab85f636c8ed7a2f9215ec0c47273b36c60a (diff)
RA: Expose resource locking as DG node
Change-Id: Ic12c8c7c59baf29630dab442de64a66dc40bc02e Issue-ID: CCSDK-573 Signed-off-by: Stan Bonev <sb5356@att.com>
Diffstat (limited to 'resource-assignment/provider/src/main/java/org')
-rw-r--r--resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/ResourceLockNode.java93
1 files changed, 93 insertions, 0 deletions
diff --git a/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/ResourceLockNode.java b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/ResourceLockNode.java
new file mode 100644
index 000000000..d1ba1eb76
--- /dev/null
+++ b/resource-assignment/provider/src/main/java/org/onap/ccsdk/sli/adaptors/ra/ResourceLockNode.java
@@ -0,0 +1,93 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : SDN-C
+ * ================================================================================
+ * Copyright (C) 2017 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.ccsdk.sli.adaptors.ra;
+
+import java.security.SecureRandom;
+import java.util.Map;
+import org.onap.ccsdk.sli.adaptors.lock.comp.LockHelper;
+import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
+import org.onap.ccsdk.sli.core.sli.SvcLogicException;
+import org.onap.ccsdk.sli.core.sli.SvcLogicJavaPlugin;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ResourceLockNode implements SvcLogicJavaPlugin {
+
+ private static final Logger log = LoggerFactory.getLogger(ResourceLockNode.class);
+
+ private LockHelper lockHelper;
+
+ public void setLockHelper(LockHelper lockHelper) {
+ this.lockHelper = lockHelper;
+ }
+
+ public void lockResource(Map<String, String> paramMap, SvcLogicContext ctx) throws SvcLogicException {
+ String resourceName = getParam(paramMap, "resource-name", true, null);
+ String lockRequester = getParam(paramMap, "lock-requester", false, generateLockRequester());
+ String lockTimeoutStr = getParam(paramMap, "lock-timeout", false, "600"); // Default lock timeout: 10 min
+ int lockTimeout = Integer.parseInt(lockTimeoutStr);
+
+ lockHelper.lock(resourceName, lockRequester, lockTimeout);
+ }
+
+ public void unlockResource(Map<String, String> paramMap, SvcLogicContext ctx) throws SvcLogicException {
+ String resourceName = getParam(paramMap, "resource-name", true, null);
+
+ lockHelper.unlock(resourceName, false);
+ }
+
+ public void lockResource(String resourceName, String lockRequester, int lockTimeout /* sec */) {
+ if (lockRequester == null) {
+ lockRequester = generateLockRequester();
+ }
+ if (lockTimeout <= 0) {
+ lockTimeout = 600;
+ }
+
+ lockHelper.lock(resourceName, lockRequester, lockTimeout);
+ }
+
+ public void unlockResource(String resourceName) {
+ lockHelper.unlock(resourceName, false);
+ }
+
+ private String getParam(Map<String, String> paramMap, String name, boolean required, String def)
+ throws SvcLogicException {
+ String v = paramMap.get(name);
+ if (v != null && v.trim().length() > 0) {
+ log.info("Param: " + name + ": " + v.trim());
+ return v.trim();
+ }
+ if (required) {
+ throw new SvcLogicException("The following node parameter is required: " + name);
+ }
+
+ log.info("Param: " + name + " not supplied. Using default: " + def);
+ return def;
+ }
+
+ private static String generateLockRequester() {
+ SecureRandom rand = new SecureRandom();
+ return "SynchronizedFunction-" + (int) (rand.nextDouble() * 1000000);
+ }
+}
+