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imesha pushed a commit to branch development
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The following commit(s) were added to refs/heads/development by this push:
new 6d629df Added a REST endpoint to check workflow manager status
6d629df is described below
commit 6d629df8eaef930494752b4783db26e6d379e88e
Author: Imesha Sudasingha <[email protected]>
AuthorDate: Sun Sep 22 14:31:59 2019 +0530
Added a REST endpoint to check workflow manager status
---
.../resources/WorkflowManagerStatus.java | 52 ++++++++++++++++++++++
.../cas/wmservices/services/WMJaxrsServiceV2.java | 23 ++++++++++
.../cas/wmservices/servlets/WmServicesServlet.java | 7 +--
3 files changed, 79 insertions(+), 3 deletions(-)
diff --git
a/webapp/wmservices/src/main/java/org/apache/oodt/cas/wmservices/resources/WorkflowManagerStatus.java
b/webapp/wmservices/src/main/java/org/apache/oodt/cas/wmservices/resources/WorkflowManagerStatus.java
new file mode 100644
index 0000000..bf650b3
--- /dev/null
+++
b/webapp/wmservices/src/main/java/org/apache/oodt/cas/wmservices/resources/WorkflowManagerStatus.java
@@ -0,0 +1,52 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.apache.oodt.cas.wmservices.resources;
+
+import javax.xml.bind.annotation.XmlRootElement;
+import javax.xml.bind.annotation.XmlType;
+
+@XmlRootElement(name = "WorkflowManagerStatus")
+@XmlType(propOrder = {"url", "serverUp"})
+public class WorkflowManagerStatus {
+
+ private String url;
+ private boolean serverUp;
+
+ public WorkflowManagerStatus() {}
+
+ public WorkflowManagerStatus(String url, boolean serverUp) {
+ this.url = url;
+ this.serverUp = serverUp;
+ }
+
+ public String getUrl() {
+ return url;
+ }
+
+ public void setUrl(String url) {
+ this.url = url;
+ }
+
+ public boolean isServerUp() {
+ return serverUp;
+ }
+
+ public void setServerUp(boolean serverUp) {
+ this.serverUp = serverUp;
+ }
+}
diff --git
a/webapp/wmservices/src/main/java/org/apache/oodt/cas/wmservices/services/WMJaxrsServiceV2.java
b/webapp/wmservices/src/main/java/org/apache/oodt/cas/wmservices/services/WMJaxrsServiceV2.java
index 3c8c4ef..8fc78b5 100644
---
a/webapp/wmservices/src/main/java/org/apache/oodt/cas/wmservices/services/WMJaxrsServiceV2.java
+++
b/webapp/wmservices/src/main/java/org/apache/oodt/cas/wmservices/services/WMJaxrsServiceV2.java
@@ -13,10 +13,12 @@ import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import org.apache.oodt.cas.wmservices.enums.ErrorType;
+import org.apache.oodt.cas.wmservices.exceptions.InternalServerErrorException;
import org.apache.oodt.cas.wmservices.exceptions.NotFoundException;
import org.apache.oodt.cas.wmservices.resources.WMRequestStatusResource;
import org.apache.oodt.cas.wmservices.resources.WorkflowInstancePageResource;
import org.apache.oodt.cas.wmservices.resources.WorkflowInstanceResource;
+import org.apache.oodt.cas.wmservices.resources.WorkflowManagerStatus;
import org.apache.oodt.cas.workflow.exceptions.WorkflowException;
import org.apache.oodt.cas.workflow.structs.WorkflowInstance;
import org.apache.oodt.cas.workflow.structs.WorkflowInstancePage;
@@ -56,6 +58,27 @@ public class WMJaxrsServiceV2 {
}
/**
+ * Checks if workflow manager is alive
+ *
+ * @return status
+ */
+ @GET
+ @Path("status")
+ @Produces({MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML})
+ public WorkflowManagerStatus getWorkflowManagerStatus() {
+ try {
+ WorkflowManagerClient client = getContextClient();
+ WorkflowManagerStatus status = new WorkflowManagerStatus();
+ status.setServerUp(client.isAlive());
+ status.setUrl(client.getWorkflowManagerUrl().toString());
+ return status;
+ } catch (WorkflowException e) {
+ logger.error("Error occurred when getting WM client", e);
+ throw new InternalServerErrorException("Unable to get WM client");
+ }
+ }
+
+ /**
* Gets an HTTP response that represents a {@link WorkflowInstance} from the
workflow manager.
*
* @param workflowInstId the ID of the workflow Instance
diff --git
a/webapp/wmservices/src/main/java/org/apache/oodt/cas/wmservices/servlets/WmServicesServlet.java
b/webapp/wmservices/src/main/java/org/apache/oodt/cas/wmservices/servlets/WmServicesServlet.java
index 065611f..6f1b928 100644
---
a/webapp/wmservices/src/main/java/org/apache/oodt/cas/wmservices/servlets/WmServicesServlet.java
+++
b/webapp/wmservices/src/main/java/org/apache/oodt/cas/wmservices/servlets/WmServicesServlet.java
@@ -132,11 +132,12 @@ public class WmServicesServlet extends
CXFNonSpringJaxrsServlet {
String message;
try {
URL url;
- String urlParameter = context.getInitParameter(DEFAULT_WM_URL);
+ String urlParameter = context.getInitParameter(PARAM_NAME_URL);
/* Get the workflow manager URL from the context parameter. */
- if (urlParameter != null) url = new
URL(PathUtils.replaceEnvVariables(urlParameter));
- else {
+ if (urlParameter != null) {
+ url = new URL(PathUtils.replaceEnvVariables(urlParameter));
+ } else {
message = "Unable to find a servlet context parameter for the workflow
manager URL.";
/* Try the default URL for the Workflow manager. */
logger.debug("WARNING Exception Thrown: {}", message);