1 files changed, 143 insertions, 0 deletions
diff --git a/blueprints-processor/plugin/generator-provider/src/main/java/org/onap/ccsdk/config/generator/service/ConfigGeneratorServiceImpl.java b/blueprints-processor/plugin/generator-provider/src/main/java/org/onap/ccsdk/config/generator/service/ConfigGeneratorServiceImpl.java
new file mode 100644
index 000000000..472f5b291
--- /dev/null
+++ b/blueprints-processor/plugin/generator-provider/src/main/java/org/onap/ccsdk/config/generator/service/ConfigGeneratorServiceImpl.java
@@ -0,0 +1,143 @@
+/*
+ * Copyright © 2017-2018 AT&T Intellectual Property.
+ * Modifications Copyright © 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.
+ */
+
+package org.onap.ccsdk.config.generator.service;
+
+import java.io.StringWriter;
+import java.util.Iterator;
+import java.util.List;
+import org.apache.commons.collections.CollectionUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.velocity.VelocityContext;
+import org.apache.velocity.app.Velocity;
+import org.onap.ccsdk.config.data.adaptor.domain.ConfigResource;
+import org.onap.ccsdk.config.data.adaptor.service.ConfigResourceService;
+import org.onap.ccsdk.config.generator.data.ConfigGeneratorInfo;
+import org.onap.ccsdk.config.generator.tool.CustomJsonNodeFactory;
+import org.onap.ccsdk.config.model.utils.TransformationUtils;
+import org.onap.ccsdk.sli.core.sli.SvcLogicException;
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class ConfigGeneratorServiceImpl implements ConfigGeneratorService {
+
+    private static EELFLogger logger = EELFManager.getInstance().getLogger(ConfigGeneratorServiceImpl.class);
+    private static final String CLASS_NAME = "ConfigGeneratorServiceImpl";
+
+    private ConfigResourceService configResourceService;
+
+    public ConfigGeneratorServiceImpl(ConfigResourceService configResourceService) {
+        logger.info("{} Constuctor Initated...", CLASS_NAME);
+        this.configResourceService = configResourceService;
+    }
+
+    @Override
+    public ConfigGeneratorInfo generateConfiguration(ConfigGeneratorInfo configGeneratorInfo) throws SvcLogicException {
+
+        if (configGeneratorInfo != null && StringUtils.isNotBlank(configGeneratorInfo.getResourceId())
+                && StringUtils.isNotBlank(configGeneratorInfo.getResourceType())
+                && StringUtils.isNotBlank(configGeneratorInfo.getRecipeName())
+                && StringUtils.isNotBlank(configGeneratorInfo.getTemplateName())
+                && StringUtils.isNotBlank(configGeneratorInfo.getTemplateContent())) {
+
+            ConfigResource configResourceQuery = new ConfigResource();
+            configResourceQuery.setResourceId(configGeneratorInfo.getResourceId());
+            configResourceQuery.setResourceType(configGeneratorInfo.getResourceType());
+            configResourceQuery.setTemplateName(configGeneratorInfo.getTemplateName());
+
+            List<ConfigResource> configResourceList = configResourceService.getConfigResource(configResourceQuery);
+
+            if (CollectionUtils.isEmpty(configResourceList)) {
+                throw new SvcLogicException("No Config Resource found");
+            } else if (configResourceList.size() > 1) {
+                throw new SvcLogicException("More than one Config Resource found for specified parameter for"
+                        + " resourceId " + configGeneratorInfo.getResourceId() + ", resourceType "
+                        + configGeneratorInfo.getResourceType() + ", recipeName " + configGeneratorInfo.getRecipeName()
+                        + ", templateName " + configGeneratorInfo.getTemplateName());
+            }
+
+            ConfigResource configResource = configResourceList.get(0);
+
+            if (configResource != null && StringUtils.isNotBlank(configResource.getResourceData())) {
+                configGeneratorInfo.setResourceData(configResource.getResourceData());
+                logger.debug("Retrieve ConfigResource Data : ({})", configResource.getResourceData());
+                ConfigGeneratorInfo generatorInfo = generateConfiguration(configGeneratorInfo.getTemplateContent(),
+                        configResource.getResourceData());
+                if (generatorInfo != null) {
+                    configGeneratorInfo.setMashedData(generatorInfo.getMashedData());
+                }
+            } else {
+                throw new SvcLogicException(
+                        "Failed to get the Resource Data for the Resource Id :" + configGeneratorInfo.getResourceId()
+                                + " of template :" + configGeneratorInfo.getTemplateName());
+            }
+        }
+        return configGeneratorInfo;
+    }
+
+    @Override
+    public ConfigGeneratorInfo generateConfiguration(String templateContent, String templateData)
+            throws SvcLogicException {
+        return generateConfiguration(templateContent, templateData, true);
+    }
+
+    @Override
+    public ConfigGeneratorInfo generateConfiguration(String templateContent, String templateData, boolean ignoreNull)
+            throws SvcLogicException {
+        ConfigGeneratorInfo configGeneratorInfo = null;
+        try {
+            if (StringUtils.isNotBlank(templateContent) && StringUtils.isNotBlank(templateData)) {
+                configGeneratorInfo = new ConfigGeneratorInfo();
+
+                Velocity.init();
+
+                ObjectMapper mapper = new ObjectMapper();
+                CustomJsonNodeFactory f = new CustomJsonNodeFactory();
+                mapper.setNodeFactory(f);
+
+                JsonNode jsonObj = mapper.readValue(templateData, JsonNode.class);
+                if (ignoreNull) {
+                    TransformationUtils.removeJsonNullNode(jsonObj);
+                }
+
+                VelocityContext context = new VelocityContext();
+                context.put("StringUtils", org.apache.commons.lang3.StringUtils.class);
+                context.put("BooleanUtils", org.apache.commons.lang3.BooleanUtils.class);
+
+                Iterator<String> ii = jsonObj.fieldNames();
+                while (ii.hasNext()) {
+                    String key = ii.next();
+                    JsonNode node = jsonObj.get(key);
+                    logger.info("Adding key ({}) with value ({})", key, node);
+                    context.put(key, node);
+                }
+
+                StringWriter writer = new StringWriter();
+                Velocity.evaluate(context, writer, "TemplateData", templateContent);
+                writer.flush();
+                configGeneratorInfo.setMashedData(writer.toString());
+            }
+        } catch (Exception e) {
+            logger.error("Failed to generate Configuration ({})", e.getMessage());
+            throw new SvcLogicException(e.getMessage(), e);
+        }
+        return configGeneratorInfo;
+    }
+
+}