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/*
* ============LICENSE_START=======================================================
* ONAP : ccsdk features
* ================================================================================
* Copyright (C) 2020 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.yang.mapper.serialize;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import java.io.IOException;
import java.lang.reflect.Type;
import java.util.List;
import java.util.stream.Collectors;
import com.google.common.reflect.ClassPath;
import org.onap.ccsdk.features.sdnr.wt.yang.mapper.YangToolsMapper;
import org.onap.ccsdk.features.sdnr.wt.yang.mapper.YangToolsMapperHelper;
import org.opendaylight.yangtools.yang.binding.BaseIdentity;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class BaseIdentityDeserializer<T> extends JsonDeserializer<T> {
private static final Logger LOG = LoggerFactory.getLogger(BaseIdentityDeserializer.class);
private final JsonDeserializer<?> deser;
public BaseIdentityDeserializer(final JsonDeserializer<?> deser) {
this.deser = deser;
}
private static List<Class<? extends BaseIdentity>> getTypesInNamespace(String packageName) throws IOException {
return ClassPath.from(Thread.currentThread().getContextClassLoader()).getTopLevelClasses(packageName).
stream().map(e -> (Class<? extends BaseIdentity>)e.load()).collect(Collectors.toList());
}
@SuppressWarnings("unchecked")
@Override
public T deserialize(JsonParser parser, DeserializationContext ctxt) throws IOException, JsonProcessingException {
LOG.debug("BaseIdentityDeserializer class for '{}'", parser.getValueAsString());
String clazzToSearch = parser.getValueAsString();
String simpleName;
Class<? extends BaseIdentity> clazz;
// clazz from Elasticsearch is full qualified
int lastDot = clazzToSearch.lastIndexOf(".");
if (lastDot > -1) {
simpleName = clazzToSearch.substring(lastDot + 1);
clazz = getTypesInNamespace(clazzToSearch.substring(0, lastDot)).stream()
.filter(e -> e.getSimpleName().equals(simpleName)).findFirst().orElse(null);
if (clazz != null)
return (T) YangToolsMapperHelper.getIdentityValueFromClass(clazz);
} else {
simpleName = clazzToSearch.substring(0, 1).toUpperCase() + clazzToSearch.substring(1);
}
try {
clazz = (Class<? extends BaseIdentity>) YangToolsMapperHelper.findClass(simpleName);
if (clazz != null)
return (T) YangToolsMapperHelper.getIdentityValueFromClass(clazz);
} catch (ClassNotFoundException e) {
LOG.warn("BaseIdentityDeserializer class not found for '" + parser.getValueAsString() + "'", e);
}
return (T) deser.deserialize(parser, ctxt);
}
}
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