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package org.openecomp.sdc.tosca.parser.impl;
import org.openecomp.sdc.tosca.parser.api.ConformanceLevel;
import org.openecomp.sdc.tosca.parser.api.ISdcCsarHelper;
import org.openecomp.sdc.tosca.parser.config.Configuration;
import org.openecomp.sdc.tosca.parser.config.ConfigurationManager;
import org.openecomp.sdc.tosca.parser.exceptions.SdcToscaParserException;
import org.openecomp.sdc.tosca.parser.utils.GeneralUtility;
import org.openecomp.sdc.toscaparser.api.ToscaTemplate;
import org.openecomp.sdc.toscaparser.api.common.JToscaException;
import java.io.IOException;
public class SdcToscaParserFactory {
private static volatile SdcToscaParserFactory instance;
private static Configuration configuration;
private SdcToscaParserFactory() {
}
/**
* Get an SdcToscaParserFactory instance.
* After parsing work is done, it must be closed using the close() method.
*/
public static SdcToscaParserFactory getInstance() throws IOException {
if (instance == null) {
synchronized (SdcToscaParserFactory.class) {
if (instance == null) {
instance = new SdcToscaParserFactory();
configuration = ConfigurationManager.getInstance().getConfiguration();
}
}
}
return instance;
}
/**
* Get an ISdcCsarHelper object for this CSAR file.
*
* @param csarPath - the absolute path to CSAR file.
* @return ISdcCsarHelper object.
* @throws SdcToscaParserException - in case the path or CSAR are invalid.
* @throws JToscaException
*/
public ISdcCsarHelper getSdcCsarHelper(String csarPath) throws JToscaException, IOException, SdcToscaParserException {
//TODO add logic to check if legal file and csar
synchronized (SdcToscaParserFactory.class) {
ToscaTemplate tosca = new ToscaTemplate(csarPath, null, true, null);
SdcCsarHelperImpl sdcCsarHelperImpl = new SdcCsarHelperImpl(tosca);
if (sdcCsarHelperImpl != null) {
validateCsarVersion(sdcCsarHelperImpl.getConformanceLevel());
}
return sdcCsarHelperImpl;
}
}
private void validateCsarVersion(String cSarVersion) throws SdcToscaParserException {
ConformanceLevel level = configuration.getConformanceLevel();
String minVersion = level.getMinVersion();
String maxVersion = level.getMaxVersion();
if (cSarVersion != null) {
if ((GeneralUtility.conformanceLevelCompare(cSarVersion, minVersion) < 0) || (GeneralUtility.conformanceLevelCompare(cSarVersion, maxVersion) > 0)) {
throw new SdcToscaParserException("Model is not supported. Parser supports versions " + minVersion + " to " + maxVersion);
}
} else {
throw new SdcToscaParserException("Model is not supported. Parser supports versions " + minVersion + " to " + maxVersion);
}
}
}
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