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/*
* ============LICENSE_START=======================================================
* ONAP : ccsdk features
* ================================================================================
* Copyright (C) 2019 highstreet technologies GmbH Intellectual Property.
* 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.features.sdnr.wt.dataprovider.yangtools;
import java.io.IOException;
import javax.annotation.Nullable;
import org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.Credentials;
import org.opendaylight.yangtools.concepts.Builder;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.FrameworkUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.PropertyNamingStrategy;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder;
import com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder.Value;
import com.fasterxml.jackson.databind.introspect.AnnotatedClass;
import com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.StdSerializer;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.DateAndTime;
/**
* YangToolsMapper is a specific Jackson mapper configuration for opendaylight yangtools serialization or
* deserialization of DataObject to/from JSON TODO ChoiceIn and Credentials deserialization only for
* LoginPasswordBuilder
*/
public class YangToolsMapper extends ObjectMapper {
private final Logger LOG = LoggerFactory.getLogger(YangToolsMapper.class);
private static final long serialVersionUID = 1L;
private static BundleContext context;
public YangToolsMapper() {
super();
configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
setPropertyNamingStrategy(PropertyNamingStrategy.KEBAB_CASE);
setSerializationInclusion(Include.NON_NULL);
setAnnotationIntrospector(new YangToolsBuilderAnnotationIntrospector());
SimpleModule dateAndTimeSerializerModule = new SimpleModule();
dateAndTimeSerializerModule.addSerializer(DateAndTime.class, new CustomDateAndTimeSerializer());
registerModule(dateAndTimeSerializerModule);
Bundle bundle = FrameworkUtil.getBundle(YangToolsMapper.class);
context = bundle != null ? bundle.getBundleContext() : null;
}
@Override
public String writeValueAsString(Object value) throws JsonProcessingException {
// TODO Auto-generated method stub
return super.writeValueAsString(value);
}
/**
* Get Builder object for yang tools interface.
*
* @param <T> yang-tools base datatype
* @param clazz class with interface.
* @return builder for interface or null if not existing
*/
@SuppressWarnings("unchecked")
public @Nullable <T extends DataObject> Builder<T> getBuilder(Class<T> clazz) {
String builder = clazz.getName() + "Builder";
try {
Class<?> clazzBuilder = findClass(builder);
return (Builder<T>) clazzBuilder.newInstance();
} catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
LOG.debug("Problem ", e);
return null;
}
}
/**
* Callback for handling mapping failures.
*
* @return
*/
public int getMappingFailures() {
return 0;
}
/**
* Provide mapping of string to attribute names, generated by yang-tools. "netconf-id" converted to "_netconfId"
*
* @param name with attribute name, not null or empty
* @return converted string or null if name was empty or null
*/
public @Nullable static String toCamelCaseAttributeName(final String name) {
if (name == null || name.isEmpty())
return null;
final StringBuilder ret = new StringBuilder(name.length());
if (!name.startsWith("_"))
ret.append('_');
int start = 0;
for (final String word : name.split("-")) {
if (!word.isEmpty()) {
if (start++ == 0) {
ret.append(Character.toLowerCase(word.charAt(0)));
} else {
ret.append(Character.toUpperCase(word.charAt(0)));
}
ret.append(word.substring(1));
}
}
return ret.toString();
}
/**
* Adapted Builder callbacks
*/
private static class YangToolsBuilderAnnotationIntrospector extends JacksonAnnotationIntrospector {
private static final long serialVersionUID = 1L;
@Override
public Class<?> findPOJOBuilder(AnnotatedClass ac) {
try {
String builder = null;
if (ac.getRawType().equals(Credentials.class)) {
builder =
"org.opendaylight.yang.gen.v1.urn.opendaylight.netconf.node.topology.rev150114.netconf.node.credentials.credentials.LoginPasswordBuilder";
//System.out.println(DataContainer.class.isAssignableFrom(ac.getRawType()));
//System.out.println(ChoiceIn.class.isAssignableFrom(ac.getRawType()));
} else if (ac.getRawType().equals(DateAndTime.class)) {
builder = DateAndTimeBuilder.class.getName();
}
else {
if (ac.getRawType().isInterface()) {
builder = ac.getName() + "Builder";
}
}
if (builder != null) {
//System.out.println("XX1: "+ac.getRawType());
//System.out.println("XX2: "+builder);
//Class<?> innerBuilder = Class.forName(builder);
Class<?> innerBuilder = findClass(builder);
//System.out.println("Builder found: "+ innerBuilder);
return innerBuilder;
}
} catch (ClassNotFoundException e) {
// No problem .. try next
}
return super.findPOJOBuilder(ac);
}
@Override
public Value findPOJOBuilderConfig(AnnotatedClass ac) {
if (ac.hasAnnotation(JsonPOJOBuilder.class)) {
return super.findPOJOBuilderConfig(ac);
}
return new JsonPOJOBuilder.Value("build", "set");
}
}
private static Class<?> findClass(String name) throws ClassNotFoundException {
// Try to find in other bundles
if (context != null) {
//OSGi environment
for (Bundle b : context.getBundles()) {
try {
return b.loadClass(name);
} catch (ClassNotFoundException e) {
// No problem, this bundle doesn't have the class
}
}
throw new ClassNotFoundException("Can not find Class in OSGi context.");
} else {
return Class.forName(name);
}
// not found in any bundle
}
public static class DateAndTimeBuilder {
private final String _value;
public DateAndTimeBuilder(String v) {
this._value = v;
}
public DateAndTime build() {
return new DateAndTime(_value);
}
}
public static class CustomDateAndTimeSerializer extends StdSerializer<DateAndTime> {
/**
*
*/
private static final long serialVersionUID = 1L;
public CustomDateAndTimeSerializer() {
this(null);
}
protected CustomDateAndTimeSerializer(Class<DateAndTime> t) {
super(t);
}
@Override
public void serialize(DateAndTime value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
gen.writeString(value.getValue());
}
}
}
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