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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
* ============LICENSE_END=========================================================
*/
package org.onap.sdnc.config.generator.transform;
import java.io.File;
import java.io.StringReader;
import java.io.StringWriter;
import java.nio.charset.Charset;
import java.util.Map;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang3.StringUtils;
import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
import org.onap.ccsdk.sli.core.sli.SvcLogicException;
import org.onap.ccsdk.sli.core.sli.SvcLogicJavaPlugin;
import org.onap.sdnc.config.generator.ConfigGeneratorConstant;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
public class XSLTTransformerNode implements SvcLogicJavaPlugin {
private static final EELFLogger log =
EELFManager.getInstance().getLogger(XSLTTransformerNode.class);
public void transformData(Map<String, String> inParams, SvcLogicContext ctx)
throws SvcLogicException {
log.trace("Received convertJson2DGContext call with params : " + inParams);
String responsePrefix = inParams.get(ConfigGeneratorConstant.INPUT_PARAM_RESPONSE_PRIFIX);
try {
responsePrefix = StringUtils.isNotBlank(responsePrefix) ? (responsePrefix + ".") : "";
String templateData = inParams.get(ConfigGeneratorConstant.INPUT_PARAM_TEMPLATE_DATA);
if (StringUtils.isNotBlank(templateData)) {
String templateFile =
inParams.get(ConfigGeneratorConstant.INPUT_PARAM_TEMPLATE_FILE);
if (StringUtils.isNotBlank(templateFile)) {
templateData = FileUtils.readFileToString(new File(templateFile),
Charset.defaultCharset());
}
}
if (StringUtils.isBlank(templateData)) {
throw new Exception("In-param templateFile/templateData value is missing");
}
String requestData = inParams.get(ConfigGeneratorConstant.INPUT_PARAM_REQUEST_DATA);
if (StringUtils.isBlank(requestData)) {
throw new Exception("In-param requestData value is missing");
}
String transformedData = transform(requestData, templateData);
log.trace("Transformed Data : " + transformedData);
ctx.setAttribute(responsePrefix + ConfigGeneratorConstant.OUTPUT_PARAM_TRANSFORMED_DATA,
transformedData);
ctx.setAttribute(responsePrefix + ConfigGeneratorConstant.OUTPUT_PARAM_STATUS,
ConfigGeneratorConstant.OUTPUT_STATUS_SUCCESS);
} catch (Exception e) {
e.printStackTrace();
ctx.setAttribute(responsePrefix + ConfigGeneratorConstant.OUTPUT_PARAM_STATUS,
ConfigGeneratorConstant.OUTPUT_STATUS_FAILURE);
ctx.setAttribute(responsePrefix + ConfigGeneratorConstant.OUTPUT_PARAM_ERROR_MESSAGE,
e.getMessage());
log.error("Failed in XSLTTransformerNode : " + e.getMessage());
throw new SvcLogicException(e.getMessage());
}
}
public String transform(String requestData, String templateData)
throws TransformerConfigurationException, TransformerException {
StringWriter xmlResultResource = new StringWriter();
Transformer xmlTransformer = TransformerFactory.newInstance()
.newTransformer(new StreamSource(new StringReader(templateData)));
xmlTransformer.transform(new StreamSource(new StringReader(requestData)),
new StreamResult(xmlResultResource));
return xmlResultResource.getBuffer().toString();
}
}
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