From 56564f91a91e496cac03ba7cae5a7d935140a574 Mon Sep 17 00:00:00 2001 From: Jim Hahn Date: Tue, 12 May 2020 12:11:14 -0400 Subject: Fix race condition in AaiCqResponse The JAXB unmarshaller used by AaiCqResponse is not thread safe. As a result, if two responses are decoded at the same time, it will generate exceptions. Issue-ID: POLICY-2556 Change-Id: I5e81d5f3c39b9ba321c146dc6f4f73e558aaca3e Signed-off-by: Jim Hahn --- .../java/org/onap/policy/aai/AaiCqResponse.java | 9 +- .../main/java/org/onap/policy/aai/AaiManager.java | 1 - .../org/onap/policy/aai/AaiCqResponseTest.java | 128 ++++++++++----------- .../org/onap/policy/aai/util/AaiExceptionTest.java | 3 +- 4 files changed, 66 insertions(+), 75 deletions(-) (limited to 'models-interactions/model-impl/aai') diff --git a/models-interactions/model-impl/aai/src/main/java/org/onap/policy/aai/AaiCqResponse.java b/models-interactions/model-impl/aai/src/main/java/org/onap/policy/aai/AaiCqResponse.java index 1e14e0704..1b18e439c 100644 --- a/models-interactions/model-impl/aai/src/main/java/org/onap/policy/aai/AaiCqResponse.java +++ b/models-interactions/model-impl/aai/src/main/java/org/onap/policy/aai/AaiCqResponse.java @@ -30,7 +30,6 @@ import java.util.List; import java.util.Map; import javax.xml.bind.JAXBContext; import javax.xml.bind.JAXBException; -import javax.xml.bind.Unmarshaller; import javax.xml.transform.stream.StreamSource; import org.eclipse.persistence.jaxb.JAXBContextFactory; import org.eclipse.persistence.jaxb.JAXBContextProperties; @@ -56,7 +55,6 @@ public class AaiCqResponse implements Serializable { private static final String VF_MODULE = "vf-module"; private static final Logger LOGGER = LoggerFactory.getLogger(AaiCqResponse.class); private static JAXBContext jaxbContext; - private static Unmarshaller unmarshaller; // JABX initial stuff static { @@ -76,7 +74,10 @@ public class AaiCqResponse implements Serializable { ModelVer.class }, properties); // @formatter:on - unmarshaller = jaxbContext.createUnmarshaller(); + + // verify that we can create an unmarshaller + jaxbContext.createUnmarshaller(); + } catch (JAXBException e) { LOGGER.error("Could not initialize JAXBContext", e); LOGGER.info("Problem initiatlizing JAXBContext", e); @@ -213,7 +214,7 @@ public class AaiCqResponse implements Serializable { private T getAaiObject(StreamSource json, final Class classOfResponse) { try { - return unmarshaller.unmarshal(json, classOfResponse).getValue(); + return jaxbContext.createUnmarshaller().unmarshal(json, classOfResponse).getValue(); } catch (JAXBException e) { LOGGER.error("JAXBCOntext error", e); return null; diff --git a/models-interactions/model-impl/aai/src/main/java/org/onap/policy/aai/AaiManager.java b/models-interactions/model-impl/aai/src/main/java/org/onap/policy/aai/AaiManager.java index 24dcd8bbd..81aea9f98 100644 --- a/models-interactions/model-impl/aai/src/main/java/org/onap/policy/aai/AaiManager.java +++ b/models-interactions/model-impl/aai/src/main/java/org/onap/policy/aai/AaiManager.java @@ -29,7 +29,6 @@ import java.util.HashMap; import java.util.Map; import java.util.UUID; import java.util.stream.Collectors; - import org.json.JSONArray; import org.json.JSONObject; import org.onap.policy.common.endpoints.event.comm.Topic.CommInfrastructure; diff --git a/models-interactions/model-impl/aai/src/test/java/org/onap/policy/aai/AaiCqResponseTest.java b/models-interactions/model-impl/aai/src/test/java/org/onap/policy/aai/AaiCqResponseTest.java index c128fb318..bc832edb6 100644 --- a/models-interactions/model-impl/aai/src/test/java/org/onap/policy/aai/AaiCqResponseTest.java +++ b/models-interactions/model-impl/aai/src/test/java/org/onap/policy/aai/AaiCqResponseTest.java @@ -2,7 +2,7 @@ * ============LICENSE_START======================================================= * * ================================================================================ - * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved. + * Copyright (C) 2019-2020 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. @@ -21,13 +21,16 @@ package org.onap.policy.aai; import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertNotNull; import static org.junit.Assert.assertNull; import java.io.File; +import java.nio.charset.StandardCharsets; import java.nio.file.Files; import java.util.ArrayList; import java.util.List; +import java.util.concurrent.atomic.AtomicInteger; import org.junit.Test; import org.onap.aai.domain.yang.CloudRegion; import org.onap.aai.domain.yang.GenericVnf; @@ -48,12 +51,7 @@ public class AaiCqResponseTest { @Test public void testConstructor() throws Exception { - /* - * Read JSON String and add all AaiObjects - */ - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -62,15 +60,31 @@ public class AaiCqResponseTest { } @Test - public void testAaiMalformedCqResponse() throws Exception { - /* - * Read JSON String and add all AaiObjects - */ + public void testMultiThreaded() throws Exception { + final AtomicInteger success = new AtomicInteger(0); + final String json = getAaiCqResponse(); - String responseString = ""; - responseString = new String(Files.readAllBytes( - new File("src/test/resources/org/onap/policy/aai/AaiMalformedCqResponse.json") - .toPath())); + Thread[] threads = new Thread[5]; + for (int x = 0; x < threads.length; ++x) { + threads[x] = new Thread(() -> runIt(json, success)); + } + + for (Thread thread : threads) { + thread.start(); + } + + for (Thread thread : threads) { + thread.join(); + } + + assertEquals(threads.length, success.get()); + } + + @Test + public void testAaiMalformedCqResponse() throws Exception { + String responseString = Files.readString( + new File("src/test/resources/org/onap/policy/aai/AaiMalformedCqResponse.json").toPath(), + StandardCharsets.UTF_8); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -100,9 +114,7 @@ public class AaiCqResponseTest { @Test public void testGetServiceInstance() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -115,9 +127,7 @@ public class AaiCqResponseTest { @Test public void testGetDefaultCloudRegion() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -129,9 +139,7 @@ public class AaiCqResponseTest { @Test public void testGetDefaultTenant() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -143,9 +151,7 @@ public class AaiCqResponseTest { @Test public void testGetGenericVnfs() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -159,9 +165,7 @@ public class AaiCqResponseTest { @Test public void testGetDefaultGenericVnf() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -174,9 +178,7 @@ public class AaiCqResponseTest { @Test public void testGetGenericVnfByName() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -188,9 +190,7 @@ public class AaiCqResponseTest { @Test public void testGetGenericVnfByModelInvariantId() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -203,9 +203,7 @@ public class AaiCqResponseTest { @Test public void testGetGenericVnfByVfModuleModelInvariantId() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -218,9 +216,7 @@ public class AaiCqResponseTest { @Test public void testGetAllVfModules() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -234,9 +230,7 @@ public class AaiCqResponseTest { @Test public void testGetVfModuleByVfModuleName() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -249,9 +243,7 @@ public class AaiCqResponseTest { @Test public void testGetVfModuleByVfModelInvariantId() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -265,9 +257,7 @@ public class AaiCqResponseTest { @Test public void testGetDefaultVfModule() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -279,9 +269,7 @@ public class AaiCqResponseTest { @Test public void testGetVserver() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -294,9 +282,7 @@ public class AaiCqResponseTest { @Test public void testGetAllModelVer() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -310,9 +296,7 @@ public class AaiCqResponseTest { @Test public void testGetModelVerByVersionId() throws Exception { - - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); + String responseString = getAaiCqResponse(); AaiCqResponse aaiCqResponse; aaiCqResponse = new AaiCqResponse(responseString); @@ -326,10 +310,8 @@ public class AaiCqResponseTest { @Test public void testGetVfModuleCount() throws Exception { - String responseString = - new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); - AaiCqResponse aaiCqResponse; - aaiCqResponse = new AaiCqResponse(responseString); + String responseString = getAaiCqResponse(); + AaiCqResponse aaiCqResponse = new AaiCqResponse(responseString); int count = aaiCqResponse.getVfModuleCount("47958575-138f-452a-8c8d-d89b595f8164", "e6130d03-56f1-4b0a-9a1d-e1b2ebc30e0e", "94b18b1d-cc91-4f43-911a-e6348665f292"); assertEquals(1, count); @@ -337,14 +319,24 @@ public class AaiCqResponseTest { /** * Provides sample CQ response. - * + * * @return a CQ response * @throws Exception file read exception */ public String getAaiCqResponse() throws Exception { - String responseString = ""; - responseString = new String(Files.readAllBytes(new File(CQ_RESPONSE_SAMPLE).toPath())); - return responseString; + return Files.readString(new File(CQ_RESPONSE_SAMPLE).toPath(), StandardCharsets.UTF_8); + } + + /** + * Creates a response object from the given json. + * @param json response + * @param success incremented if the test succeeds + */ + private void runIt(String json, AtomicInteger success) { + AaiCqResponse cq = new AaiCqResponse(json); + List list = cq.getAllVfModules(); + assertFalse(list.isEmpty()); + success.incrementAndGet(); } } diff --git a/models-interactions/model-impl/aai/src/test/java/org/onap/policy/aai/util/AaiExceptionTest.java b/models-interactions/model-impl/aai/src/test/java/org/onap/policy/aai/util/AaiExceptionTest.java index c15407dd0..caee19a87 100644 --- a/models-interactions/model-impl/aai/src/test/java/org/onap/policy/aai/util/AaiExceptionTest.java +++ b/models-interactions/model-impl/aai/src/test/java/org/onap/policy/aai/util/AaiExceptionTest.java @@ -2,7 +2,7 @@ * ============LICENSE_START======================================================= * aai * ================================================================================ - * Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved. + * Copyright (C) 2017-2020 AT&T Intellectual Property. All rights reserved. * Modifications Copyright (C) 2019 Nordix Foundation. * ================================================================================ * Licensed under the Apache License, Version 2.0 (the "License"); @@ -24,7 +24,6 @@ package org.onap.policy.aai.util; import static org.junit.Assert.assertNotNull; import java.io.IOException; - import org.junit.Test; public class AaiExceptionTest { -- cgit 1.2.3-korg