diff options
Diffstat (limited to 'plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/XmlSerializer.java')
| -rw-r--r-- | plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/XmlSerializer.java | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/XmlSerializer.java b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/XmlSerializer.java new file mode 100644 index 000000000..f3c6723e1 --- /dev/null +++ b/plugins/restconf-client/provider/src/main/java/org/onap/ccsdk/sli/plugins/yangserializers/dfserializer/XmlSerializer.java @@ -0,0 +1,104 @@ +/*- + * ============LICENSE_START======================================================= + * ONAP - CCSDK + * ================================================================================ + * Copyright (C) 2018 Huawei Technologies Co., Ltd. All rights reserved. + * ================================================================================ + * 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.plugins.yangserializers.dfserializer; + +import org.dom4j.Document; +import org.dom4j.DocumentException; +import org.dom4j.DocumentHelper; +import org.onap.ccsdk.sli.core.sli.SvcLogicException; +import org.onap.ccsdk.sli.plugins.yangserializers.pnserializer.DefaultPropertiesNodeWalker; +import org.onap.ccsdk.sli.plugins.yangserializers.pnserializer.PropertiesNode; +import org.onap.ccsdk.sli.plugins.yangserializers.pnserializer.PropertiesNodeWalker; + +import java.io.Writer; +import java.util.List; +import java.util.Map; + +import static org.onap.ccsdk.sli.plugins.yangserializers.dfserializer.DataFormat.XML; +import static org.onap.ccsdk.sli.plugins.yangserializers.dfserializer.DfSerializerUtil.XML_LIS_ERR; +import static org.onap.ccsdk.sli.plugins.yangserializers.dfserializer.DfSerializerUtil.XML_TREE_ERR; + +/** + * Representation of XML serializer which encodes properties to XML and + * decodes properties from XML with the data format serializer. + */ +public class XmlSerializer extends DataFormatSerializer { + + /** + * Creates an instance of XML serializer. + * + * @param serializerContext data format serializer context + */ + protected XmlSerializer(DataFormatSerializerContext serializerContext) { + super(XML, serializerContext); + } + + @Override + public String encode(Map<String, String> param, + Map<String, List<Annotation>> annotations) + throws SvcLogicException { + PropertiesNode propNode = serializerContext().getPropNodeSerializer() + .encode(param); + PropertiesNodeWalker nodeWalker = new DefaultPropertiesNodeWalker<>(); + PropertiesNodeXmlListener xmlListener = new PropertiesNodeXmlListener(); + nodeWalker.walk(xmlListener, propNode); + Writer writer = xmlListener.getWriter(); + return removeRootNode(writer.toString(), propNode.name()); + } + + @Override + public Map<String, String> decode(String dataFormatBody) + throws SvcLogicException { + if (!(serializerContext().listener() instanceof XmlListener)) { + throw new SvcLogicException(XML_LIS_ERR); + } + + XmlListener listener = (XmlListener) serializerContext().listener(); + XmlWalker walker = new DefaultXmlWalker(); + Document document; + + try { + document = DocumentHelper.parseText(dataFormatBody); + } catch (DocumentException e) { + throw new SvcLogicException(XML_TREE_ERR, e); + } + walker.walk(listener, document.getRootElement()); + + return serializerContext().getPropNodeSerializer().decode( + listener.serializerHelper().getPropertiesNode()); + } + + /** + * Removes root node from the XML data format message and makes the + * string to be pretty print. + * + * @param xml XML data format message + * @param rootName root node name + * @return pretty print format XML message + */ + private static String removeRootNode(String xml, String rootName) { + xml = xml.replace("\n<" + rootName + ">", "\n"); + xml = xml.replace("</" + rootName + ">" + "\n", ""); + xml = xml.replaceAll("\n" + " ", "\n"); + xml = xml.replaceFirst("\n", ""); + return xml; + } +}
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