diff options
Diffstat (limited to 'blueprints-processor/plugin/model-provider/src/main/java/org/onap/ccsdk/config/model/utils/ExpressionUtils.java')
| -rw-r--r-- | blueprints-processor/plugin/model-provider/src/main/java/org/onap/ccsdk/config/model/utils/ExpressionUtils.java | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/blueprints-processor/plugin/model-provider/src/main/java/org/onap/ccsdk/config/model/utils/ExpressionUtils.java b/blueprints-processor/plugin/model-provider/src/main/java/org/onap/ccsdk/config/model/utils/ExpressionUtils.java new file mode 100644 index 000000000..06b4c3005 --- /dev/null +++ b/blueprints-processor/plugin/model-provider/src/main/java/org/onap/ccsdk/config/model/utils/ExpressionUtils.java @@ -0,0 +1,191 @@ +/*
+ * 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.model.utils;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import org.apache.commons.lang3.StringUtils;
+import org.onap.ccsdk.config.model.ConfigModelConstant;
+import org.onap.ccsdk.config.model.data.PropertyDefinition;
+import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+
+public class ExpressionUtils {
+ private static EELFLogger logger = EELFManager.getInstance().getLogger(ExpressionUtils.class);
+
+ private final SvcLogicContext context;
+ private final Map<String, String> inParams;
+
+ public ExpressionUtils(final SvcLogicContext context, final Map<String, String> inParams) {
+ this.context = context;
+ this.inParams = inParams;
+ }
+
+ public void populatePropertAssignmentsWithPrefix(String prefix, Map<String, PropertyDefinition> typeProperties,
+ Map<String, Object> templateProperties) throws IOException {
+ if (typeProperties != null && templateProperties != null) {
+ ObjectMapper mapper = new ObjectMapper();
+ String templatejsonContent = mapper.writeValueAsString(templateProperties);
+ logger.debug("Expression inputs ({}).", templatejsonContent);
+
+ JsonNode rootArray = mapper.readTree(templatejsonContent);
+ processJsonExpression(rootArray);
+ if (rootArray != null) {
+ Map<String, String> prefixParams = new HashMap<>();
+ TransformationUtils.convertJson2RootProperties(prefixParams, rootArray);
+ logger.info("Resolved inputs ({}).", rootArray);
+ prefixParams.forEach((key, value) -> {
+ this.inParams.put(prefix + "." + key, value);
+ });
+ }
+ }
+ }
+
+ public void populatePropertAssignments(Map<String, PropertyDefinition> typeProperties,
+ Map<String, Object> templateProperties) throws IOException {
+ if (typeProperties != null && templateProperties != null) {
+ ObjectMapper mapper = new ObjectMapper();
+ String templatejsonContent = mapper.writeValueAsString(templateProperties);
+ logger.info("Expression inputs ({}).", templatejsonContent);
+
+ JsonNode rootArray = mapper.readTree(templatejsonContent);
+ processJsonExpression(rootArray);
+ TransformationUtils.convertJson2RootProperties(this.inParams, rootArray);
+ logger.info("Resolved inputs ({}).", rootArray);
+
+ }
+ }
+
+ public void populateOutPropertAssignments(Map<String, PropertyDefinition> typeProperties,
+ Map<String, Object> templateProperties) throws IOException {
+ if (typeProperties != null && templateProperties != null) {
+ ObjectMapper mapper = new ObjectMapper();
+ String templatejsonContent = mapper.writeValueAsString(templateProperties);
+ logger.info("Expression outputs ({}).", templatejsonContent);
+
+ JsonNode rootArray = mapper.readTree(templatejsonContent);
+ processJsonExpression(rootArray);
+ logger.info("Resolved outputs ({}).", rootArray);
+ }
+ }
+
+ public void processJsonExpression(JsonNode rootArray) throws IOException {
+ if (rootArray != null) {
+ Iterator<Map.Entry<String, JsonNode>> fields = rootArray.fields();
+ while (fields.hasNext()) {
+ Map.Entry<String, JsonNode> entry = fields.next();
+ processJsonNode(rootArray, entry.getKey(), entry.getValue());
+ }
+ }
+ }
+
+ private void processJsonNode(JsonNode parentNode, String nodeName, JsonNode node) throws IOException {
+ if (node == null) {
+ // Do Nothing
+ } else if (node.isArray()) {
+ String[] a = new String[node.size()];
+
+ for (int i = 0; i < a.length; i++) {
+ processJsonNode(null, null, node.get(i));
+ }
+ } else if (node.isObject()) {
+
+ Iterator<Map.Entry<String, JsonNode>> fields = node.fields();
+ while (fields.hasNext()) {
+ Map.Entry<String, JsonNode> entry = fields.next();
+ processJsonNode(node, entry.getKey(), entry.getValue());
+ }
+ } else if (node.isTextual()) {
+ boolean expression = checkExpressionContent(node.asText());
+ if (expression) {
+ processExpressionContent(parentNode, nodeName, node);
+ }
+ }
+ }
+
+ private boolean checkExpressionContent(String content) {
+ return (StringUtils.isNotBlank(content) && (content.contains(ConfigModelConstant.EXPRESSION_GET_INPUT)
+ || content.contains(ConfigModelConstant.EXPRESSION_GET_ATTRIBUTE)
+ || content.contains(ConfigModelConstant.EXPRESSION_SET_VALUE)));
+ }
+
+ @SuppressWarnings("squid:S3776")
+ private void processExpressionContent(JsonNode parentNode, String nodeName, JsonNode node) throws IOException {
+
+ if (node != null && StringUtils.isNotBlank(node.asText())) {
+ String content = node.asText();
+ ObjectMapper mapper = new ObjectMapper();
+ Map<String, String> expressionMap = mapper.readValue(content, Map.class);
+ boolean isExpressionNode = false;
+
+ if (expressionMap != null) {
+ String expressionValue = null;
+ String expressionKey = null;
+
+ if (expressionMap.containsKey(ConfigModelConstant.EXPRESSION_GET_INPUT)) {
+ isExpressionNode = true;
+ expressionKey = expressionMap.get(ConfigModelConstant.EXPRESSION_GET_INPUT);
+ expressionValue = resolveGetInputExpression(expressionKey, context);
+ if (expressionValue == null) {
+ expressionValue = resolveGetInputExpression("inputs." + expressionKey + ".default", context);
+ }
+ } else if (expressionMap.containsKey(ConfigModelConstant.EXPRESSION_GET_ATTRIBUTE)) {
+ isExpressionNode = true;
+ expressionValue =
+ context.getAttribute(expressionMap.get(ConfigModelConstant.EXPRESSION_GET_ATTRIBUTE));
+ } else if (expressionMap.containsKey(ConfigModelConstant.EXPRESSION_SET_VALUE)) {
+ isExpressionNode = true;
+ expressionKey = expressionMap.get(ConfigModelConstant.EXPRESSION_SET_VALUE);
+ expressionValue = context.getAttribute(expressionKey);
+
+ if (StringUtils.isNotBlank(expressionKey)) {
+ context.setAttribute(expressionKey, expressionValue);
+ }
+ }
+
+ if (isExpressionNode && expressionValue == null) {
+ ((ObjectNode) parentNode).put(nodeName, "");
+ }
+ if (StringUtils.isNotBlank(expressionValue)) {
+ if (expressionValue.trim().startsWith("[") || expressionValue.trim().startsWith("{")) {
+ JsonNode valueNode = mapper.readTree(expressionValue);
+ ((ObjectNode) parentNode).put(nodeName, valueNode);
+ } else {
+ ((ObjectNode) parentNode).put(nodeName, expressionValue);
+ }
+ }
+ logger.debug("expression ({}), expression key ({}), expression Value ({})", expressionMap,
+ expressionKey, expressionValue);
+ }
+ }
+ }
+
+ private String resolveGetInputExpression(String key, final SvcLogicContext context) {
+ if (StringUtils.isNotBlank(key) && context != null) {
+ return context.getAttribute(key);
+ }
+ return null;
+ }
+
+}
|