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/**
* Copyright 2019 Nokia
* <p>
* 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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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.
*/
package org.onap.cvc.csar;
import com.google.common.collect.Lists;
import org.apache.commons.lang3.tuple.Pair;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class PnfManifestParser {
public static final String METADATA_SECTION = "metadata";
public static final String NON_MANO_ARTIFACT_SETS_SECTION = "non_mano_artifact_sets";
private final List<String> lines;
private final String fileName;
PnfManifestParser(List<String> lines, String fileName) {
this.lines = lines;
this.fileName = fileName;
}
public static PnfManifestParser getInstance(String fileName) throws IOException {
try (Stream<String> stream = Files.lines(Paths.get(fileName))) {
List<String> lines = stream
.map(String::trim)
.collect(Collectors.toList());
return new PnfManifestParser(lines, fileName);
}
}
public Pair<CSARArchive.Manifest.Metadata, List<CSARArchive.CSARError>> fetchMetadata() {
CSARArchive.Manifest.Metadata metadata = new CSARArchive.Manifest.Metadata();
List<CSARArchive.CSARError> errors = new ArrayList<>();
boolean isMetadataSectionAvailable = false;
int lineNumber = 0;
for (String line : lines) {
lineNumber++;
if (line.trim().isEmpty()){
continue;
} else if (line.startsWith(METADATA_SECTION)) {
isMetadataSectionAvailable = true;
continue;
}else if (isMetadataSectionAvailable) {
Pair<String, String> data = parseLine(line);
if (isNewSection(data)) {
if(!isSectionSupported(data.getKey())) {
errors.add(new PnfCSARErrorWarning(data.getKey(), this.fileName, lineNumber));
}
break;
}
handleMetadataLine(metadata, errors, lineNumber, data);
}
}
if (!isMetadataSectionAvailable) {
errors.add(new PnfCSARErrorEntryMissing(METADATA_SECTION, this.fileName, -1));
}
return Pair.of(metadata, errors);
}
public Pair<Map<String, Map<String, List<String>>>, List<CSARArchive.CSARError>> fetchNonManoArtifacts() {
Map<String, Map<String, List<String>>> nonManoArtifacts = new HashMap<>();
List<CSARArchive.CSARError> errors = new ArrayList<>();
boolean isNonManoArtifactsSectionAvailable = false;
String attributeName = null;
for (String line : lines) {
if (line.trim().isEmpty()) {
continue;
} else if (line.startsWith(NON_MANO_ARTIFACT_SETS_SECTION)) {
isNonManoArtifactsSectionAvailable = true;
continue;
} else if (isNonManoArtifactsSectionAvailable) {
Pair<String, String> data = parseLine(line);
if (isNewSection(data)) {
attributeName = data.getKey();
continue;
}
handleNonManoArtifactLine(nonManoArtifacts, attributeName, data);
}
}
if (!isNonManoArtifactsSectionAvailable) {
errors.add(new PnfCSARErrorEntryMissing(NON_MANO_ARTIFACT_SETS_SECTION, this.fileName, -1));
}
return Pair.of(nonManoArtifacts, errors);
}
private void handleMetadataLine(
CSARArchive.Manifest.Metadata metadata,
List<CSARArchive.CSARError> errors,
int lineNumber,
Pair<String, String> data) {
String paramName = data.getKey();
String value = data.getValue();
switch (paramName) {
case "pnf_product_name":
metadata.setProductName(value);
break;
case "pnf_provider_id":
metadata.setProviderId(value);
break;
case "pnf_package_version":
metadata.setPackageVersion(value);
break;
case "pnf_release_date_time":
metadata.setReleaseDateTime(value);
break;
default:
errors.add(new PnfCSARErrorInvalidEntry(
paramName,
this.fileName,
lineNumber));
break;
}
}
private void handleNonManoArtifactLine(
Map<String, Map<String, List<String>>> nonManoArtifacts,
String attributeName,
Pair<String, String> data) {
String key = data.getKey();
String value = data.getValue();
Map<String, List<String>> attributeWithValues = nonManoArtifacts.getOrDefault(attributeName, new HashMap<>());
List<String> values = attributeWithValues.getOrDefault(key, new ArrayList<>());
values.add(value);
attributeWithValues.put(key, values);
nonManoArtifacts.put(attributeName, attributeWithValues);
}
private boolean isSectionSupported(String key) {
return Lists.newArrayList(METADATA_SECTION, NON_MANO_ARTIFACT_SETS_SECTION).contains(key);
}
private boolean isNewSection(Pair<String, String> data) {
String value = data.getValue().trim();
return value.isEmpty() || value.startsWith("#");
}
private Pair<String, String> parseLine(String line) {
String[] elements = line.split(": ");
if (elements.length == 2)
return Pair.of(elements[0], elements[1]);
if (line.endsWith(":"))
return Pair.of(line.substring(0, line.length() - 1), "");
else
return Pair.of(line, "");
}
private static class PnfCSARError extends CSARArchive.CSARError {
public PnfCSARError(String errorCode, String message, int lineNumber, String file) {
super(errorCode);
this.message = message;
this.file = file;
this.lineNumber = lineNumber;
}
}
public static class PnfCSARErrorInvalidEntry extends PnfCSARError {
public PnfCSARErrorInvalidEntry(String entry, String file, int lineNumber) {
super("0x2000", "Invalid. Entry [" + entry + "]", lineNumber, file);
}
}
private static class PnfCSARErrorWarning extends PnfCSARError {
public PnfCSARErrorWarning(String entry, String file, int lineNumber) {
super("0x2001", "Warning. Entry [" + entry + "]", lineNumber, file);
}
}
private static class PnfCSARErrorEntryMissing extends PnfCSARError {
public PnfCSARErrorEntryMissing(String entry, String file, int lineNumber) {
super("0x2002", "Missing. Entry [" + entry + "]", lineNumber, file);
}
}
}
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