diff options
Diffstat (limited to 'sli/provider-base/src/main/java/org/onap/ccsdk/sli/core/sli/provider/base/SvcLogicServiceImplBase.java')
| -rw-r--r-- | sli/provider-base/src/main/java/org/onap/ccsdk/sli/core/sli/provider/base/SvcLogicServiceImplBase.java | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/sli/provider-base/src/main/java/org/onap/ccsdk/sli/core/sli/provider/base/SvcLogicServiceImplBase.java b/sli/provider-base/src/main/java/org/onap/ccsdk/sli/core/sli/provider/base/SvcLogicServiceImplBase.java new file mode 100644 index 00000000..92fdb9a3 --- /dev/null +++ b/sli/provider-base/src/main/java/org/onap/ccsdk/sli/core/sli/provider/base/SvcLogicServiceImplBase.java @@ -0,0 +1,189 @@ +/*- + * ============LICENSE_START======================================================= + * ONAP : CCSDK + * ================================================================================ + * Copyright (C) 2017 AT&T Intellectual Property. All rights + * reserved. + * ================================================================================ + * Modifications Copyright (C) 2018 IBM. + * ================================================================================ + * 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.ccsdk.sli.core.sli.provider.base; + +import java.util.HashMap; +import java.util.Map; +import java.util.Properties; + +import org.onap.ccsdk.sli.core.sli.ExitNodeException; +import org.onap.ccsdk.sli.core.sli.MetricLogger; +import org.onap.ccsdk.sli.core.sli.SvcLogicContext; +import org.onap.ccsdk.sli.core.sli.SvcLogicException; +import org.onap.ccsdk.sli.core.sli.SvcLogicGraph; +import org.onap.ccsdk.sli.core.sli.SvcLogicNode; +import org.onap.ccsdk.sli.core.sli.SvcLogicStore; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.slf4j.MDC; + +public class SvcLogicServiceImplBase implements SvcLogicServiceBase { + protected SvcLogicResolver resolver; + protected static final Map<String, AbstractSvcLogicNodeExecutor> BUILTIN_NODES = new HashMap<String, AbstractSvcLogicNodeExecutor>() { + { + put("block", new BlockNodeExecutor()); + put("call", new CallNodeExecutor()); + put("configure", new ConfigureNodeExecutor()); + put("delete", new DeleteNodeExecutor()); + put("execute", new ExecuteNodeExecutor()); + put("exists", new ExistsNodeExecutor()); + put("for", new ForNodeExecutor()); + put("get-resource", new GetResourceNodeExecutor()); + put("is-available", new IsAvailableNodeExecutor()); + put("notify", new NotifyNodeExecutor()); + put("record", new RecordNodeExecutor()); + put("release", new ReleaseNodeExecutor()); + put("reserve", new ReserveNodeExecutor()); + put("return", new ReturnNodeExecutor()); + put("save", new SaveNodeExecutor()); + put("set", new SetNodeExecutor()); + put("switch", new SwitchNodeExecutor()); + put("update", new UpdateNodeExecutor()); + put("break", new BreakNodeExecutor()); + put("while", new WhileNodeExecutor()); + put("exit", new ExitNodeExecutor()); + } + }; + + private static final Logger LOG = LoggerFactory.getLogger(SvcLogicServiceImplBase.class); + protected HashMap<String, AbstractSvcLogicNodeExecutor> nodeExecutors = null; + protected Properties properties; + protected SvcLogicStore store; + protected static final String CURRENT_GRAPH="currentGraph"; + + public SvcLogicServiceImplBase(SvcLogicStore store) { + this.store = store; + } + + protected void registerExecutors() { + + LOG.info("Entered register executors"); + for (String nodeType : BUILTIN_NODES.keySet()) { + LOG.info("SLI - registering node executor for node type " + nodeType); + registerExecutor(nodeType, BUILTIN_NODES.get(nodeType)); + } + LOG.info("Done registerExecutors"); + } + + public void registerExecutor(String nodeName, AbstractSvcLogicNodeExecutor executor) { + if (nodeExecutors == null) { + nodeExecutors = new HashMap<>(); + } + LOG.info("SLI - registering executor for node type {}", nodeName); + executor.setResolver(resolver); + nodeExecutors.put(nodeName, executor); + } + + public void unregisterExecutor(String nodeName) { + LOG.info("SLI - unregistering executor for node type {}", nodeName); + nodeExecutors.remove(nodeName); + } + + public SvcLogicContext execute(SvcLogicGraph graph, SvcLogicContext ctx) throws SvcLogicException { + if (nodeExecutors == null) { + registerExecutors(); + } + + // Set service name in MDC to reference current working directed graph + MDC.put(MetricLogger.SERVICE_NAME, graph.getModule() + ":" + graph.getRpc() + "/v" + graph.getVersion()); + + MDC.put(CURRENT_GRAPH, graph.toString()); + + SvcLogicNode curNode = graph.getRootNode(); + LOG.info("About to execute graph {}", graph.toString()); + try { + while (curNode != null) { + resetContext(); + SvcLogicNode nextNode = executeNode(curNode, ctx); + curNode = nextNode; + } + } catch (ExitNodeException e) { + LOG.debug("SvcLogicServiceImpl caught ExitNodeException"); + } + MDC.remove("nodeId"); + MDC.remove(CURRENT_GRAPH); + + return (ctx); + } + + protected void resetContext() { + + } + + public SvcLogicNode executeNode(SvcLogicNode node, SvcLogicContext ctx) throws SvcLogicException { + if (node == null) { + return (null); + } + + LOG.info("About to execute node # {} ({})", node.getNodeId(), node.getNodeType()); + + if (LOG.isDebugEnabled()) { + LOG.debug("Executing node " + node.getNodeId() + " of " + node.getGraph().getRpc()); + } + + AbstractSvcLogicNodeExecutor executor = nodeExecutors.get(node.getNodeType()); + + if (executor != null) { + LOG.debug("Executing node executor for node type {} - {}", node.getNodeType(), + executor.getClass().getName()); + + MDC.put("nodeId", node.getNodeId() + " (" + node.getNodeType() + ")"); + return (executor.execute(this, node, ctx)); + } else { + throw new SvcLogicException("Attempted to execute a node of type " + node.getNodeType() + ", but no executor was registered for this type"); + } + } + + @Override + public boolean hasGraph(String module, String rpc, String version, String mode) throws SvcLogicException { + return (store.hasGraph(module, rpc, version, mode)); + } + + @Override + public Properties execute(String module, String rpc, String version, String mode, Properties props) + throws SvcLogicException { + LOG.info("Fetching service logic from data store"); + SvcLogicGraph graph = store.fetch(module, rpc, version, mode); + + if (graph == null) { + Properties retProps = new Properties(); + retProps.setProperty("error-code", "401"); + retProps.setProperty("error-message", + "No service logic found for [" + module + "," + rpc + "," + version + "," + mode + "]"); + return (retProps); + } + + SvcLogicContext ctx = new SvcLogicContext(props); + ctx.setAttribute(CURRENT_GRAPH, graph.toString()); + ctx.setAttribute("X-ECOMP-RequestID", MDC.get("X-ECOMP-RequestID")); + execute(graph, ctx); + return (ctx.toProperties()); + } + + @Override + public SvcLogicStore getStore() throws SvcLogicException { + return this.store; + } + +} |