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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2020 Nordix Foundation.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.nsd.parser;
import static java.nio.charset.StandardCharsets.UTF_8;
import static org.apache.commons.lang3.StringUtils.isNotBlank;
import java.util.List;
import java.util.Optional;
import org.apache.commons.io.IOUtils;
import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.nsd.FileEntry;
import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.nsd.ToscaMetadata;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
/**
* @author Waqas Ikram (waqas.ikram@est.tech)
*
*/
@Service
public class ToscaMetadataParser {
private static final String ATTRIBUTE_VALUE_SEPARATOR = ":";
private static final Logger logger = LoggerFactory.getLogger(ToscaMetadataParser.class);
public Optional<ToscaMetadata> parse(final FileEntry toscaMetaFile) {
try {
final ToscaMetadata toscaMetadata = new ToscaMetadata();
final List<String> lines = IOUtils.readLines(toscaMetaFile.getFileContentAsStream(), UTF_8);
for (final String line : lines) {
final String trimmedLine = line.trim();
if (!trimmedLine.isEmpty() && trimmedLine.contains(ATTRIBUTE_VALUE_SEPARATOR)) {
final String[] entry = trimmedLine.split(ATTRIBUTE_VALUE_SEPARATOR);
if (entry.length >= 2 && isNotBlank(entry[0]) && isNotBlank(entry[1])) {
toscaMetadata.addEntry(entry[0].trim(), entry[1].trim());
} else {
logger.warn("Unexpected line in metadata file: {}", line);
}
} else {
logger.warn("Unexpected line does not contain valid separator {} in metadata file: {}",
ATTRIBUTE_VALUE_SEPARATOR, line);
}
}
return Optional.of(toscaMetadata);
} catch (final Exception exception) {
logger.error("Unable to parser metadata file content", exception);
}
return Optional.empty();
}
}
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