Merge "Allow integer version when using PDP Group Deploy"
diff --git a/main/src/main/java/org/onap/policy/pap/main/rest/PapRestServer.java b/main/src/main/java/org/onap/policy/pap/main/rest/PapRestServer.java
index 87db6ad..85c6f3c 100644
--- a/main/src/main/java/org/onap/policy/pap/main/rest/PapRestServer.java
+++ b/main/src/main/java/org/onap/policy/pap/main/rest/PapRestServer.java
@@ -98,7 +98,8 @@
                                         PdpGroupDeployControllerV1.class.getName(),
                                         PdpGroupDeleteControllerV1.class.getName(),
                                         PdpGroupStateChangeControllerV1.class.getName(),
-                                        PdpGroupQueryControllerV1.class.getName()));
+                                        PdpGroupQueryControllerV1.class.getName(),
+                                        PdpGroupHealthCheckControllerV1.class.getName()));
         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX, "false");
         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_SWAGGER_SUFFIX, "true");
         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_USERNAME_SUFFIX,
diff --git a/main/src/main/java/org/onap/policy/pap/main/rest/PdpGroupHealthCheckControllerV1.java b/main/src/main/java/org/onap/policy/pap/main/rest/PdpGroupHealthCheckControllerV1.java
new file mode 100644
index 0000000..752d382
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/pap/main/rest/PdpGroupHealthCheckControllerV1.java
@@ -0,0 +1,102 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.pap.main.rest;
+
+import io.swagger.annotations.ApiOperation;
+import io.swagger.annotations.ApiParam;
+import io.swagger.annotations.ApiResponse;
+import io.swagger.annotations.ApiResponses;
+import io.swagger.annotations.Authorization;
+import io.swagger.annotations.Extension;
+import io.swagger.annotations.ExtensionProperty;
+import io.swagger.annotations.ResponseHeader;
+
+import java.util.UUID;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.HeaderParam;
+import javax.ws.rs.Path;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
+
+import org.apache.commons.lang3.tuple.Pair;
+import org.onap.policy.models.base.PfModelException;
+import org.onap.policy.models.pdp.concepts.Pdps;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Class to provide REST end point for PAP component to fetch health status of all PDPs registered with PAP.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@est.tech)
+ */
+public class PdpGroupHealthCheckControllerV1 extends PapRestControllerV1 {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(PdpGroupHealthCheckControllerV1.class);
+
+    private final PdpGroupHealthCheckProvider provider = new PdpGroupHealthCheckProvider();
+
+    /**
+     * Returns health status of all PDPs registered with PAP.
+     *
+     * @param requestId request ID used in ONAP logging
+     * @return a response
+     */
+    // @formatter:off
+    @GET
+    @Path("pdps/healthcheck")
+    @ApiOperation(value = "Returns health status of all PDPs registered with PAP",
+        notes = "Queries health status of all PDPs, returning all pdps health status",
+        response = Pdps.class,
+        tags = {"Policy Administration (PAP) API"},
+        authorizations = @Authorization(value = AUTHORIZATION_TYPE),
+        responseHeaders = {
+            @ResponseHeader(name = VERSION_MINOR_NAME, description = VERSION_MINOR_DESCRIPTION,
+                            response = String.class),
+            @ResponseHeader(name = VERSION_PATCH_NAME, description = VERSION_PATCH_DESCRIPTION,
+                            response = String.class),
+            @ResponseHeader(name = VERSION_LATEST_NAME, description = VERSION_LATEST_DESCRIPTION,
+                            response = String.class),
+            @ResponseHeader(name = REQUEST_ID_NAME, description = REQUEST_ID_HDR_DESCRIPTION,
+                            response = UUID.class)},
+        extensions = {@Extension(name = EXTENSION_NAME,
+            properties = {@ExtensionProperty(name = API_VERSION_NAME, value = API_VERSION),
+                @ExtensionProperty(name = LAST_MOD_NAME, value = LAST_MOD_RELEASE)})})
+    @ApiResponses(value = {@ApiResponse(code = AUTHENTICATION_ERROR_CODE, message = AUTHENTICATION_ERROR_MESSAGE),
+                    @ApiResponse(code = AUTHORIZATION_ERROR_CODE, message = AUTHORIZATION_ERROR_MESSAGE),
+                    @ApiResponse(code = SERVER_ERROR_CODE, message = SERVER_ERROR_MESSAGE)})
+    // @formatter:on
+
+    public Response pdpGroupHealthCheck(
+            @HeaderParam(REQUEST_ID_NAME) @ApiParam(REQUEST_ID_PARAM_DESCRIPTION) final UUID requestId) {
+
+        try {
+            final Pair<Status, Pdps> pair = provider.fetchPdpGroupHealthStatus();
+            return addLoggingHeaders(addVersionControlHeaders(Response.status(pair.getLeft())), requestId)
+                    .entity(pair.getRight()).build();
+        } catch (final PfModelException exp) {
+            LOGGER.info("pdpGroup health check failed", exp);
+            return addLoggingHeaders(
+                    addVersionControlHeaders(Response.status(exp.getErrorResponse().getResponseCode())), requestId)
+                            .entity(exp.getErrorResponse()).build();
+        }
+    }
+}
diff --git a/main/src/main/java/org/onap/policy/pap/main/rest/PdpGroupHealthCheckProvider.java b/main/src/main/java/org/onap/policy/pap/main/rest/PdpGroupHealthCheckProvider.java
new file mode 100644
index 0000000..12470b1
--- /dev/null
+++ b/main/src/main/java/org/onap/policy/pap/main/rest/PdpGroupHealthCheckProvider.java
@@ -0,0 +1,74 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.pap.main.rest;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.ws.rs.core.Response;
+
+import org.apache.commons.lang3.tuple.Pair;
+import org.onap.policy.common.utils.services.Registry;
+import org.onap.policy.models.base.PfModelException;
+import org.onap.policy.models.pdp.concepts.Pdp;
+import org.onap.policy.models.pdp.concepts.PdpGroup;
+import org.onap.policy.models.pdp.concepts.PdpSubGroup;
+import org.onap.policy.models.pdp.concepts.Pdps;
+import org.onap.policy.models.provider.PolicyModelsProvider;
+import org.onap.policy.pap.main.PapConstants;
+import org.onap.policy.pap.main.PolicyModelsProviderFactoryWrapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Provider for PAP component to to fetch health status of all PDPs registered with PAP.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@est.tech)
+ */
+public class PdpGroupHealthCheckProvider {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(PdpGroupHealthCheckProvider.class);
+
+    /**
+     * Returns health status of all PDPs.
+     *
+     * @return a pair containing the status and the response
+     * @throws PfModelException in case of errors
+     */
+    public Pair<Response.Status, Pdps> fetchPdpGroupHealthStatus() throws PfModelException {
+
+        final Pdps pdps = new Pdps();
+        final PolicyModelsProviderFactoryWrapper modelProviderWrapper =
+                Registry.get(PapConstants.REG_PAP_DAO_FACTORY, PolicyModelsProviderFactoryWrapper.class);
+        try (PolicyModelsProvider databaseProvider = modelProviderWrapper.create()) {
+            final List<PdpGroup> groups = databaseProvider.getPdpGroups(null);
+            final List<Pdp> pdpList = new ArrayList<>();
+            for (final PdpGroup group : groups) {
+                for (final PdpSubGroup subGroup : group.getPdpSubgroups()) {
+                    pdpList.addAll(subGroup.getPdpInstances());
+                }
+            }
+            pdps.setPdpList(pdpList);
+        }
+        LOGGER.debug("PdpGroup HealthCheck Response - {}", pdps);
+        return Pair.of(Response.Status.OK, pdps);
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/pap/main/rest/TestPdpGroupHealthCheckControllerV1.java b/main/src/test/java/org/onap/policy/pap/main/rest/TestPdpGroupHealthCheckControllerV1.java
new file mode 100644
index 0000000..370582d
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/pap/main/rest/TestPdpGroupHealthCheckControllerV1.java
@@ -0,0 +1,64 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.pap.main.rest;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import javax.ws.rs.client.Invocation;
+import javax.ws.rs.core.Response;
+
+import org.junit.Test;
+import org.onap.policy.models.pdp.concepts.Pdps;
+
+/**
+ * Class to perform unit test of {@link PdpGroupHealthCheckControllerV1}.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@est.tech)
+ */
+public class TestPdpGroupHealthCheckControllerV1 extends CommonPapRestServer {
+
+    private static final String ENDPOINT = "pdps/healthcheck";
+
+    @Test
+    public void testSwagger() throws Exception {
+        super.testSwagger(ENDPOINT);
+    }
+
+    @Test
+    public void testPdpGroupHealthCheck() throws Exception {
+        final String uri = ENDPOINT;
+
+        final Invocation.Builder invocationBuilder = sendRequest(uri);
+        Response rawresp = invocationBuilder.get();
+        Pdps resp = rawresp.readEntity(Pdps.class);
+        assertEquals(Response.Status.OK.getStatusCode(), rawresp.getStatus());
+        assertNotNull(resp);
+
+        rawresp = invocationBuilder.get();
+        resp = rawresp.readEntity(Pdps.class);
+        assertEquals(Response.Status.OK.getStatusCode(), rawresp.getStatus());
+        assertNotNull(resp);
+
+        // verify it fails when no authorization info is included
+        checkUnauthRequest(uri, req -> req.get());
+    }
+}
diff --git a/main/src/test/java/org/onap/policy/pap/main/rest/TestPdpGroupHealthCheckProvider.java b/main/src/test/java/org/onap/policy/pap/main/rest/TestPdpGroupHealthCheckProvider.java
new file mode 100644
index 0000000..977c526
--- /dev/null
+++ b/main/src/test/java/org/onap/policy/pap/main/rest/TestPdpGroupHealthCheckProvider.java
@@ -0,0 +1,110 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2019 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.pap.main.rest;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import java.io.File;
+import java.util.List;
+
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
+
+import org.apache.commons.lang3.tuple.Pair;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.onap.policy.common.utils.coder.Coder;
+import org.onap.policy.common.utils.coder.CoderException;
+import org.onap.policy.common.utils.coder.StandardCoder;
+import org.onap.policy.common.utils.resources.ResourceUtils;
+import org.onap.policy.common.utils.services.Registry;
+import org.onap.policy.models.pdp.concepts.Pdp;
+import org.onap.policy.models.pdp.concepts.PdpGroup;
+import org.onap.policy.models.pdp.concepts.PdpGroups;
+import org.onap.policy.models.pdp.concepts.PdpSubGroup;
+import org.onap.policy.models.pdp.concepts.Pdps;
+import org.onap.policy.models.provider.PolicyModelsProvider;
+import org.onap.policy.pap.main.PapConstants;
+import org.onap.policy.pap.main.PolicyModelsProviderFactoryWrapper;
+
+/**
+ * Class to perform unit test of {@link PdpGroupHealthCheckProvider}.
+ *
+ * @author Ram Krishna Verma (ram.krishna.verma@est.tech)
+ */
+public class TestPdpGroupHealthCheckProvider {
+
+    @Mock
+    private PolicyModelsProvider dao;
+    private PolicyModelsProviderFactoryWrapper daofact;
+    private List<PdpGroup> groups;
+    private Coder coder = new StandardCoder();
+
+    /**
+     * Configures DAO and mocks.
+     */
+    @Before
+    public void setUp() throws Exception {
+
+        Registry.newRegistry();
+        MockitoAnnotations.initMocks(this);
+        daofact = mock(PolicyModelsProviderFactoryWrapper.class);
+        when(daofact.create()).thenReturn(dao);
+
+        groups = loadFile("pdpGroup.json").getGroups();
+
+        when(dao.getPdpGroups(any())).thenReturn(groups);
+
+        Registry.register(PapConstants.REG_PAP_DAO_FACTORY, daofact);
+    }
+
+    @Test
+    public void testFetchPdpGroupHealthStatus() throws Exception {
+        final PdpGroupHealthCheckProvider provider = new PdpGroupHealthCheckProvider();
+        final Pair<Status, Pdps> pair = provider.fetchPdpGroupHealthStatus();
+        assertEquals(Response.Status.OK, pair.getLeft());
+        verifyPdps(pair.getRight().getPdpList(), groups);
+    }
+
+    private void verifyPdps(final List<Pdp> pdpList, final List<PdpGroup> groups) {
+        assertEquals(5, pdpList.size());
+        for (final PdpGroup group : groups) {
+            for (final PdpSubGroup subGroup : group.getPdpSubgroups()) {
+                pdpList.containsAll(subGroup.getPdpInstances());
+            }
+        }
+    }
+
+    private PdpGroups loadFile(final String fileName) {
+        final File propFile = new File(ResourceUtils.getFilePath4Resource("rest/" + fileName));
+        try {
+            return coder.decode(propFile, PdpGroups.class);
+
+        } catch (final CoderException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}
diff --git a/main/src/test/resources/rest/pdpGroup.json b/main/src/test/resources/rest/pdpGroup.json
new file mode 100644
index 0000000..2a7b4ed
--- /dev/null
+++ b/main/src/test/resources/rest/pdpGroup.json
@@ -0,0 +1,98 @@
+{
+    "groups": [
+        {
+            "name": "queryGroup1",
+            "description": "my description",
+            "pdpGroupState": "PASSIVE",
+            "properties": {
+                    "abc": "def"
+                },
+            "pdpSubgroups": [
+                {
+                    "pdpType": "pdpTypeA",
+                    "currentInstanceCount": 3,
+                    "desiredInstanceCount": 2,
+                    "properties": {
+                            "ten": 10
+                        },
+                    "pdpInstances": [
+                        {
+                            "instanceId": "pdpAA_1",
+                            "pdpState": "PASSIVE",
+                            "healthy": "HEALTHY"
+                        },
+                        {
+                            "instanceId": "pdpAA_2",
+                            "pdpState": "PASSIVE",
+                            "healthy": "HEALTHY"
+                        }
+                    ],
+                    "supportedPolicyTypes": [
+                        {
+                            "name": "onap.policies.monitoring.cdap.tca.hi.lo.app",
+                            "version": "1.0.0"
+                        }
+                    ],
+                    "policies": [
+                        {
+                            "name": "onap.restart.tca",
+                            "version": "1.0.0"
+                        }
+                    ]
+                },
+                {
+                    "pdpType": "pdpTypeB",
+                    "desiredInstanceCount": 1,
+                    "pdpInstances": [
+                        {
+                            "instanceId": "pdpAB_1",
+                            "pdpState": "PASSIVE",
+                            "healthy": "HEALTHY"
+                        }
+                    ],
+                    "supportedPolicyTypes": [
+                        {
+                            "name": "onap.policies.monitoring.cdap.tca.hi.lo.app",
+                            "version": "1.0.0"
+                        }
+                    ],
+                    "policies": []
+                }
+            ]
+        },
+        {
+            "name": "queryGroup2",
+            "pdpGroupState": "ACTIVE",
+            "pdpSubgroups": [
+                {
+                    "pdpType": "pdpTypeA",
+                    "desiredInstanceCount": 2,
+                    "pdpInstances": [
+                        {
+                            "instanceId": "pdpBA_1",
+                            "pdpState": "PASSIVE",
+                            "healthy": "HEALTHY"
+                        },
+                        {
+                            "instanceId": "pdpBA_2",
+                            "pdpState": "PASSIVE",
+                            "healthy": "HEALTHY"
+                        }
+                    ],
+                    "supportedPolicyTypes": [
+                        {
+                            "name": "onap.policies.monitoring.cdap.tca.hi.lo.app",
+                            "version": "1.0.0"
+                        }
+                    ],
+                    "policies": [
+                        {
+                            "name": "onap.restart.tcaB",
+                            "version": "1.0.0"
+                        }
+                    ]
+                }
+            ]
+        }
+    ]
+}
diff --git a/pom.xml b/pom.xml
index c03226b..256e6ba 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,7 +26,7 @@
     <parent>
         <groupId>org.onap.policy.parent</groupId>
         <artifactId>integration</artifactId>
-        <version>3.0.0-SNAPSHOT</version>
+        <version>3.0.0</version>
         <relativePath />
     </parent>