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/*-
* ============LICENSE_START=======================================================
* feature-state-management
* ================================================================================
* Copyright (C) 2017-2019, 2021 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2021 Nordix Foundation.
* ================================================================================
* 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.drools.statemanagement;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiResponse;
import io.swagger.annotations.ApiResponses;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.core.Response;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Api(value = "test")
@Path("/")
public class IntegrityMonitorRestManager {
private static Logger logger = LoggerFactory.getLogger(IntegrityMonitorRestManager.class);
private DroolsPdpIntegrityMonitor im;
/**
* Test interface for Integrity Monitor.
*
* @return Exception message if exception, otherwise empty
*/
@ApiOperation(
value = "Test endpoint for integrity monitor",
notes = "The TEST command is used to request data from a subcomponent "
+ "instance that can be used to determine its operational state. "
+ "A 200/success response status code should be returned if the "
+ "subcomponent instance is functioning properly and able to respond to requests.",
response = String.class)
@ApiResponses(value = {
@ApiResponse(
code = 200,
message = "Integrity monitor sanity check passed"),
@ApiResponse(
code = 500,
message = "Integrity monitor sanity check encountered an exception. "
+ "This can indicate operational state disabled or administrative state locked")
})
@GET
@Path("test")
public Response test() {
logger.debug("integrity monitor /test accessed");
// The responses are stored within the audit objects, so we need to
// invoke the audits and get responses before we handle another
// request.
synchronized (IntegrityMonitorRestManager.class) {
// will include messages associated with subsystem failures
var body = new StringBuilder();
// 200=SUCCESS, 500=failure
var responseValue = 200;
if (im == null) {
try {
im = DroolsPdpIntegrityMonitor.getInstance();
} catch (Exception e) {
logger.error("IntegrityMonitorRestManager: test() interface caught an exception", e);
body.append("\nException: " + e + "\n");
responseValue = 500;
}
}
if (im != null) {
try {
// call 'IntegrityMonitor.evaluateSanity()'
im.evaluateSanity();
} catch (Exception e) {
// this exception isn't coming from one of the audits,
// because those are caught in 'subsystemTest()'
logger.error("DroolsPDPIntegrityMonitor.evaluateSanity()", e);
// include exception in HTTP response
body.append("\nException: " + e + "\n");
responseValue = 500;
}
}
// send response, including the contents of 'body'
// (which is empty if everything is successful)
if (responseValue == 200) {
return Response.status(Response.Status.OK).build();
} else {
return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(body.toString()).build();
}
}
}
}
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