[ONOS-4438] Add codecs for mastership REST API
Add codecs for RoleInfo, MastershipTerm and MastershipRole.
Change-Id: I1135c7fc0ed591446d6268229b54fda70391fdb9
diff --git a/core/common/src/main/java/org/onosproject/codec/impl/CodecManager.java b/core/common/src/main/java/org/onosproject/codec/impl/CodecManager.java
index c03a3fa..908e8ee 100644
--- a/core/common/src/main/java/org/onosproject/codec/impl/CodecManager.java
+++ b/core/common/src/main/java/org/onosproject/codec/impl/CodecManager.java
@@ -23,6 +23,7 @@
import org.apache.felix.scr.annotations.Service;
import org.onlab.packet.Ethernet;
import org.onosproject.cluster.ControllerNode;
+import org.onosproject.cluster.RoleInfo;
import org.onosproject.codec.CodecService;
import org.onosproject.codec.JsonCodec;
import org.onosproject.core.Application;
@@ -31,12 +32,14 @@
import org.onosproject.incubator.net.virtual.VirtualLink;
import org.onosproject.incubator.net.virtual.VirtualNetwork;
import org.onosproject.incubator.net.virtual.VirtualPort;
+import org.onosproject.mastership.MastershipTerm;
import org.onosproject.net.Annotations;
import org.onosproject.net.ConnectPoint;
import org.onosproject.net.Device;
import org.onosproject.net.Host;
import org.onosproject.net.HostLocation;
import org.onosproject.net.Link;
+import org.onosproject.net.MastershipRole;
import org.onosproject.net.Path;
import org.onosproject.net.Port;
import org.onosproject.net.device.PortStatistics;
@@ -136,6 +139,9 @@
registerCodec(VirtualDevice.class, new VirtualDeviceCodec());
registerCodec(VirtualPort.class, new VirtualPortCodec());
registerCodec(VirtualLink.class, new VirtualLinkCodec());
+ registerCodec(MastershipTerm.class, new MastershipTermCodec());
+ registerCodec(MastershipRole.class, new MastershipRoleCodec());
+ registerCodec(RoleInfo.class, new RoleInfoCodec());
log.info("Started");
}
diff --git a/core/common/src/main/java/org/onosproject/codec/impl/MastershipRoleCodec.java b/core/common/src/main/java/org/onosproject/codec/impl/MastershipRoleCodec.java
new file mode 100644
index 0000000..9a7f7f9
--- /dev/null
+++ b/core/common/src/main/java/org/onosproject/codec/impl/MastershipRoleCodec.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+package org.onosproject.codec.impl;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.net.MastershipRole;
+import org.slf4j.Logger;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.util.Tools.nullIsIllegal;
+import static org.onosproject.net.MastershipRole.MASTER;
+import static org.onosproject.net.MastershipRole.NONE;
+import static org.onosproject.net.MastershipRole.STANDBY;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Codec for mastership role.
+ */
+public final class MastershipRoleCodec extends JsonCodec<MastershipRole> {
+ private final Logger log = getLogger(getClass());
+
+ // JSON field names
+ private static final String ROLE = "role";
+
+ private static final String MISSING_MEMBER_MESSAGE = " member is required in MastershipRole";
+
+ @Override
+ public ObjectNode encode(MastershipRole mastershipRole, CodecContext context) {
+ checkNotNull(mastershipRole, "MastershipRole cannot be null");
+ ObjectNode result = context.mapper().createObjectNode()
+ .put(ROLE, mastershipRole.name());
+ return result;
+ }
+
+ @Override
+ public MastershipRole decode(ObjectNode json, CodecContext context) {
+ if (json == null || !json.isObject()) {
+ return null;
+ }
+
+ String roleJson = nullIsIllegal(json.get(ROLE),
+ ROLE + MISSING_MEMBER_MESSAGE).asText();
+ MastershipRole mastershipRole;
+ switch (roleJson) {
+ case "MASTER":
+ mastershipRole = MASTER;
+ break;
+ case "STANDBY":
+ mastershipRole = STANDBY;
+ break;
+ case "NONE":
+ mastershipRole = NONE;
+ break;
+ default:
+ log.warn("The mastership role {} is not defined.", roleJson);
+ return null;
+ }
+
+ return mastershipRole;
+ }
+}
diff --git a/core/common/src/main/java/org/onosproject/codec/impl/MastershipTermCodec.java b/core/common/src/main/java/org/onosproject/codec/impl/MastershipTermCodec.java
new file mode 100644
index 0000000..c8f3915
--- /dev/null
+++ b/core/common/src/main/java/org/onosproject/codec/impl/MastershipTermCodec.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+package org.onosproject.codec.impl;
+
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.cluster.NodeId;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.mastership.MastershipTerm;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.util.Tools.nullIsIllegal;
+
+/**
+ * Codec for mastership term.
+ */
+public class MastershipTermCodec extends JsonCodec<MastershipTerm> {
+
+ // JSON field names
+ private static final String MASTER = "master";
+ private static final String TERM_NUMBER = "termNumber";
+
+ private static final String MISSING_MEMBER_MESSAGE = " member is required in MastershipTerm";
+
+ @Override
+ public ObjectNode encode(MastershipTerm term, CodecContext context) {
+ checkNotNull(term, "Mastership term cannot be null");
+ ObjectNode result = context.mapper().createObjectNode()
+ .put(MASTER, term.master().id())
+ .put(TERM_NUMBER, term.termNumber());
+
+ return result;
+ }
+
+ @Override
+ public MastershipTerm decode(ObjectNode json, CodecContext context) {
+ if (json == null || !json.isObject()) {
+ return null;
+ }
+
+ // node identifier of master
+ NodeId nodeId = NodeId.nodeId(nullIsIllegal(json.get(MASTER),
+ MASTER + MISSING_MEMBER_MESSAGE).asText());
+
+ // term number
+ long termNumber = nullIsIllegal(json.get(TERM_NUMBER),
+ TERM_NUMBER + MISSING_MEMBER_MESSAGE).asLong();
+
+ return MastershipTerm.of(nodeId, termNumber);
+ }
+}
diff --git a/core/common/src/main/java/org/onosproject/codec/impl/RoleInfoCodec.java b/core/common/src/main/java/org/onosproject/codec/impl/RoleInfoCodec.java
new file mode 100644
index 0000000..c63c078
--- /dev/null
+++ b/core/common/src/main/java/org/onosproject/codec/impl/RoleInfoCodec.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+package org.onosproject.codec.impl;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onosproject.cluster.NodeId;
+import org.onosproject.cluster.RoleInfo;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.IntStream;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.onlab.util.Tools.nullIsIllegal;
+
+/**
+ * Codec for role info.
+ */
+public final class RoleInfoCodec extends JsonCodec<RoleInfo> {
+
+ // JSON field names
+ private static final String MASTER = "master";
+ private static final String BACKUPS = "backups";
+
+ private static final String MISSING_MEMBER_MESSAGE = " member is required in MastershipTerm";
+
+ @Override
+ public ObjectNode encode(RoleInfo roleInfo, CodecContext context) {
+ checkNotNull(roleInfo, "RoleInfo cannot be null");
+
+ ObjectNode result = context.mapper().createObjectNode();
+
+ if (roleInfo.master() != null) {
+ result.put(MASTER, roleInfo.master().id());
+ }
+
+ ArrayNode backups = context.mapper().createArrayNode();
+ roleInfo.backups().forEach(backup -> backups.add(backup.id()));
+
+ if (roleInfo.backups().size() != 0) {
+ result.set(BACKUPS, backups);
+ }
+
+ return result;
+ }
+
+ @Override
+ public RoleInfo decode(ObjectNode json, CodecContext context) {
+ if (json == null || !json.isObject()) {
+ return null;
+ }
+
+ // parse node identifier of master
+ NodeId nodeId = json.get(MASTER) == null ?
+ null : NodeId.nodeId(json.get(MASTER).asText());
+
+ // parse node identifier of backups
+ List<NodeId> backups = new ArrayList<>();
+
+ ArrayNode backupsJson = (ArrayNode) nullIsIllegal(json.get(BACKUPS),
+ BACKUPS + MISSING_MEMBER_MESSAGE);
+
+ IntStream.range(0, backupsJson.size()).forEach(i -> {
+ JsonNode backupJson = nullIsIllegal(backupsJson.get(i),
+ "Backup node id cannot be null");
+ backups.add(NodeId.nodeId(backupJson.asText()));
+ });
+
+ return new RoleInfo(nodeId, backups);
+ }
+}
diff --git a/core/common/src/test/java/org/onosproject/codec/impl/MastershipRoleCodecTest.java b/core/common/src/test/java/org/onosproject/codec/impl/MastershipRoleCodecTest.java
new file mode 100644
index 0000000..fda4de6
--- /dev/null
+++ b/core/common/src/test/java/org/onosproject/codec/impl/MastershipRoleCodecTest.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+package org.onosproject.codec.impl;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.hamcrest.Description;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.net.MastershipRole;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+import static org.onosproject.net.MastershipRole.MASTER;
+
+/**
+ * Unit tests for mastership role codec.
+ */
+public final class MastershipRoleCodecTest {
+
+ MockCodecContext context;
+ JsonCodec<MastershipRole> mastershipRoleCodec;
+
+ /**
+ * Sets up for each test. Creates a context and fetches the mastership role
+ * codec.
+ */
+ @Before
+ public void setUp() {
+ context = new MockCodecContext();
+ mastershipRoleCodec = context.codec(MastershipRole.class);
+ assertThat(mastershipRoleCodec, notNullValue());
+ }
+
+ /**
+ * Tests encoding of a mastership role object.
+ */
+ @Test
+ public void testMastershipRoleEncode() {
+ MastershipRole mastershipRole = MASTER;
+ ObjectNode mastershipRoleJson = mastershipRoleCodec.encode(mastershipRole, context);
+ assertThat(mastershipRoleJson, MastershipRoleJsonMatcher.matchesMastershipRole(mastershipRole));
+ }
+
+ /**
+ * Tests decoding of mastership role JSON object.
+ */
+ @Test
+ public void testMastershipRoleDecode() throws IOException {
+ MastershipRole mastershipRole = getMastershipRole("MastershipRole.json");
+
+ assertThat(mastershipRole, is(MASTER));
+ }
+
+ /**
+ * Hamcrest matcher for mastership role.
+ */
+ private static final class MastershipRoleJsonMatcher extends TypeSafeDiagnosingMatcher<JsonNode> {
+
+ private final MastershipRole mastershipRole;
+
+ private MastershipRoleJsonMatcher(MastershipRole mastershipRole) {
+ this.mastershipRole = mastershipRole;
+ }
+
+ @Override
+ protected boolean matchesSafely(JsonNode jsonNode, Description description) {
+
+ // check mastership role
+ String jsonRole = jsonNode.get("role").asText();
+ String role = mastershipRole.name();
+ if (!jsonRole.equals(role)) {
+ description.appendText("mastership role was " + jsonRole);
+ return false;
+ }
+
+ return true;
+ }
+
+ @Override
+ public void describeTo(Description description) {
+ description.appendText(mastershipRole.toString());
+ }
+
+ static MastershipRoleJsonMatcher matchesMastershipRole(MastershipRole mastershipRole) {
+ return new MastershipRoleJsonMatcher(mastershipRole);
+ }
+ }
+
+ /**
+ * Reads in a mastership role from the given resource and decodes it.
+ *
+ * @param resourceName resource to use to read the JSON for the rule
+ * @return decoded mastership term object
+ * @throws IOException if processing the resource fails
+ */
+ private MastershipRole getMastershipRole(String resourceName) throws IOException {
+ InputStream jsonStream = MastershipRoleCodecTest.class.getResourceAsStream(resourceName);
+ JsonNode json = context.mapper().readTree(jsonStream);
+ assertThat(json, notNullValue());
+ MastershipRole mastershipRole = mastershipRoleCodec.decode((ObjectNode) json, context);
+ assertThat(mastershipRole, notNullValue());
+ return mastershipRole;
+ }
+}
diff --git a/core/common/src/test/java/org/onosproject/codec/impl/MastershipTermCodecTest.java b/core/common/src/test/java/org/onosproject/codec/impl/MastershipTermCodecTest.java
new file mode 100644
index 0000000..f924e11
--- /dev/null
+++ b/core/common/src/test/java/org/onosproject/codec/impl/MastershipTermCodecTest.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+package org.onosproject.codec.impl;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.hamcrest.Description;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.cluster.NodeId;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.mastership.MastershipTerm;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Unit tests for mastership term codec.
+ */
+public class MastershipTermCodecTest {
+
+ MockCodecContext context;
+ JsonCodec<MastershipTerm> mastershipTermCodec;
+
+ /**
+ * Sets up for each test. Creates a context and fetches the mastership term
+ * codec.
+ */
+ @Before
+ public void setUp() {
+ context = new MockCodecContext();
+ mastershipTermCodec = context.codec(MastershipTerm.class);
+ assertThat(mastershipTermCodec, notNullValue());
+ }
+
+ /**
+ * Tests encoding of a mastership term object.
+ */
+ @Test
+ public void testMastershipTermEncode() {
+ NodeId masterNodeId = NodeId.nodeId("1");
+ long termNumber = 10;
+
+ MastershipTerm mastershipTerm = MastershipTerm.of(masterNodeId, termNumber);
+ ObjectNode mastershipTermJson = mastershipTermCodec.encode(mastershipTerm, context);
+ assertThat(mastershipTermJson, MastershipTermJsonMatcher.matchesMastershipTerm(mastershipTerm));
+ }
+
+ /**
+ * Tests decoding of mastership term JSON object.
+ */
+ @Test
+ public void testMastershipTermDecode() throws IOException {
+ MastershipTerm mastershipTerm = getMastershipTerm("MastershipTerm.json");
+
+ assertThat(mastershipTerm.master().id(), is("1"));
+ assertThat(mastershipTerm.termNumber(), is(10L));
+ }
+
+ /**
+ * Hamcrest matcher for mastership term.
+ */
+ private static final class MastershipTermJsonMatcher extends TypeSafeDiagnosingMatcher<JsonNode> {
+
+ private final MastershipTerm mastershipTerm;
+
+ private MastershipTermJsonMatcher(MastershipTerm mastershipTerm) {
+ this.mastershipTerm = mastershipTerm;
+ }
+
+ @Override
+ protected boolean matchesSafely(JsonNode jsonNode, Description description) {
+
+ // check node identifier of master
+ String jsonNodeId = jsonNode.get("master").asText();
+ String nodeId = mastershipTerm.master().id();
+ if (!jsonNodeId.equals(nodeId)) {
+ description.appendText("master's node id was " + jsonNodeId);
+ return false;
+ }
+
+ // check term number
+ long jsonTermNumber = jsonNode.get("termNumber").asLong();
+ long termNumber = mastershipTerm.termNumber();
+ if (jsonTermNumber != termNumber) {
+ description.appendText("term number was " + jsonTermNumber);
+ return false;
+ }
+
+ return true;
+ }
+
+ @Override
+ public void describeTo(Description description) {
+ description.appendText(mastershipTerm.toString());
+ }
+
+ static MastershipTermJsonMatcher matchesMastershipTerm(MastershipTerm mastershipTerm) {
+ return new MastershipTermJsonMatcher(mastershipTerm);
+ }
+ }
+
+ /**
+ * Reads in a mastership term from the given resource and decodes it.
+ *
+ * @param resourceName resource to use to read the JSON for the rule
+ * @return decoded mastership term object
+ * @throws IOException if processing the resource fails
+ */
+ private MastershipTerm getMastershipTerm(String resourceName) throws IOException {
+ InputStream jsonStream = MastershipTermCodecTest.class.getResourceAsStream(resourceName);
+ JsonNode json = context.mapper().readTree(jsonStream);
+ assertThat(json, notNullValue());
+ MastershipTerm mastershipTerm = mastershipTermCodec.decode((ObjectNode) json, context);
+ assertThat(mastershipTerm, notNullValue());
+ return mastershipTerm;
+ }
+}
diff --git a/core/common/src/test/java/org/onosproject/codec/impl/RoleInfoCodecTest.java b/core/common/src/test/java/org/onosproject/codec/impl/RoleInfoCodecTest.java
new file mode 100644
index 0000000..85c13d0
--- /dev/null
+++ b/core/common/src/test/java/org/onosproject/codec/impl/RoleInfoCodecTest.java
@@ -0,0 +1,166 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+package org.onosproject.codec.impl;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.google.common.collect.ImmutableList;
+import org.apache.commons.lang3.StringUtils;
+import org.hamcrest.Description;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.cluster.NodeId;
+import org.onosproject.cluster.RoleInfo;
+import org.onosproject.codec.JsonCodec;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Unit tests for role info codec.
+ */
+public final class RoleInfoCodecTest {
+
+ MockCodecContext context;
+ JsonCodec<RoleInfo> roleInfoCodec;
+
+ @Before
+ public void setUp() {
+ context = new MockCodecContext();
+ roleInfoCodec = context.codec(RoleInfo.class);
+ assertThat(roleInfoCodec, notNullValue());
+ }
+
+ /**
+ * Tests encoding of a role info object.
+ */
+ @Test
+ public void testRoleInfoEncode() {
+ NodeId masterNodeId = NodeId.nodeId("1");
+ NodeId backupNodeId1 = NodeId.nodeId("1");
+ NodeId backupNodeId2 = NodeId.nodeId("2");
+ NodeId backupNodeId3 = NodeId.nodeId("3");
+ List<NodeId> backupNodeIds =
+ ImmutableList.of(backupNodeId1, backupNodeId2, backupNodeId3);
+
+ RoleInfo roleInfo = new RoleInfo(masterNodeId, backupNodeIds);
+ ObjectNode roleInfoJson = roleInfoCodec.encode(roleInfo, context);
+ assertThat(roleInfoJson, RoleInfoJsonMatcher.matchesRoleInfo(roleInfo));
+ }
+
+ /**
+ * Tests decoding of a role info JSON object.
+ */
+ @Test
+ public void testRoleInfoDecode() throws IOException {
+ RoleInfo roleInfo = getRoleInfo("RoleInfo.json");
+
+ assertThat(roleInfo.backups().size(), is(3));
+
+ assertThat(roleInfo.master().id(), is("1"));
+
+ List<NodeId> backups = roleInfo.backups();
+ assertThat(backups.contains(NodeId.nodeId("2")), is(true));
+ assertThat(backups.contains(NodeId.nodeId("3")), is(true));
+ assertThat(backups.contains(NodeId.nodeId("4")), is(true));
+ }
+
+ /**
+ * Hamcrest matcher for role info.
+ */
+ private static final class RoleInfoJsonMatcher extends TypeSafeDiagnosingMatcher<JsonNode> {
+
+ private final RoleInfo roleInfo;
+
+ private RoleInfoJsonMatcher(RoleInfo roleInfo) {
+ this.roleInfo = roleInfo;
+ }
+
+ @Override
+ protected boolean matchesSafely(JsonNode jsonNode, Description description) {
+
+ // check master node identifier
+ String jsonNodeId = jsonNode.get("master") != null ? jsonNode.get("master").asText() : null;
+ String nodeId = roleInfo.master().id();
+ if (!StringUtils.equals(jsonNodeId, nodeId)) {
+ description.appendText("master's node id was " + jsonNodeId);
+ return false;
+ }
+
+ // check backup nodes size
+ JsonNode jsonBackupNodeIds = jsonNode.get("backups");
+ if (jsonBackupNodeIds.size() != roleInfo.backups().size()) {
+ description.appendText("backup nodes size was " + jsonBackupNodeIds.size());
+ return false;
+ }
+
+
+ // check backup nodes' identifier
+ for (NodeId backupNodeId : roleInfo.backups()) {
+ boolean backupFound = false;
+ for (int idx = 0; idx < jsonBackupNodeIds.size(); idx++) {
+ if (backupNodeId.id().equals(jsonBackupNodeIds.get(idx).asText())) {
+ backupFound = true;
+ break;
+ }
+ }
+ if (!backupFound) {
+ description.appendText("backup not found " + backupNodeId.id());
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ @Override
+ public void describeTo(Description description) {
+ description.appendText(roleInfo.toString());
+ }
+
+ /**
+ * Factory to allocate a role info.
+ *
+ * @param roleInfo role info object we are looking for
+ * @return matcher
+ */
+ static RoleInfoJsonMatcher matchesRoleInfo(RoleInfo roleInfo) {
+ return new RoleInfoJsonMatcher(roleInfo);
+ }
+ }
+
+ /**
+ * Reads in a role info from the given resource and decodes it.
+ *
+ * @param resourceName resource to use to read the JSON for the rule
+ * @return decoded roleInfo
+ * @throws IOException if processing the resource fails
+ */
+ private RoleInfo getRoleInfo(String resourceName) throws IOException {
+ InputStream jsonStream = RoleInfoCodecTest.class.getResourceAsStream(resourceName);
+ JsonNode json = context.mapper().readTree(jsonStream);
+ assertThat(json, notNullValue());
+ RoleInfo roleInfo = roleInfoCodec.decode((ObjectNode) json, context);
+ assertThat(roleInfo, notNullValue());
+ return roleInfo;
+ }
+}
diff --git a/core/common/src/test/resources/org/onosproject/codec/impl/MastershipRole.json b/core/common/src/test/resources/org/onosproject/codec/impl/MastershipRole.json
new file mode 100644
index 0000000..75d6355
--- /dev/null
+++ b/core/common/src/test/resources/org/onosproject/codec/impl/MastershipRole.json
@@ -0,0 +1,3 @@
+{
+ "role": "MASTER"
+}
\ No newline at end of file
diff --git a/core/common/src/test/resources/org/onosproject/codec/impl/MastershipTerm.json b/core/common/src/test/resources/org/onosproject/codec/impl/MastershipTerm.json
new file mode 100644
index 0000000..15243e2
--- /dev/null
+++ b/core/common/src/test/resources/org/onosproject/codec/impl/MastershipTerm.json
@@ -0,0 +1,4 @@
+{
+ "master": "1",
+ "termNumber": 10
+}
\ No newline at end of file
diff --git a/core/common/src/test/resources/org/onosproject/codec/impl/RoleInfo.json b/core/common/src/test/resources/org/onosproject/codec/impl/RoleInfo.json
new file mode 100644
index 0000000..a4b5b40
--- /dev/null
+++ b/core/common/src/test/resources/org/onosproject/codec/impl/RoleInfo.json
@@ -0,0 +1,8 @@
+{
+ "master": "1",
+ "backups": [
+ "2",
+ "3",
+ "4"
+ ]
+}
\ No newline at end of file