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YamlDiscoverer.java
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YamlDiscoverer.java
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package org.palladiosimulator.retriever.extraction.discoverers;
import java.io.FileReader;
import java.io.IOException;
import java.io.Reader;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.stream.Stream;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.common.CommonPlugin;
import org.palladiosimulator.retriever.extraction.discoverers.wrappers.YamlMapper;
import org.palladiosimulator.retriever.services.Discoverer;
import org.palladiosimulator.retriever.services.RetrieverConfiguration;
import org.palladiosimulator.retriever.services.blackboard.RetrieverBlackboard;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.error.YAMLException;
import de.uka.ipd.sdq.workflow.jobs.AbstractBlackboardInteractingJob;
import de.uka.ipd.sdq.workflow.jobs.CleanupFailedException;
import de.uka.ipd.sdq.workflow.jobs.IBlackboardInteractingJob;
import de.uka.ipd.sdq.workflow.jobs.JobFailedException;
import de.uka.ipd.sdq.workflow.jobs.UserCanceledException;
public class YamlDiscoverer implements Discoverer {
public static final String DISCOVERER_ID = "org.palladiosimulator.retriever.extraction.discoverers.yaml";
public static final String MAPPER_PARTITION_KEY = DISCOVERER_ID + ".mappers";
@Override
public IBlackboardInteractingJob<RetrieverBlackboard> create(final RetrieverConfiguration configuration,
final RetrieverBlackboard blackboard) {
return new AbstractBlackboardInteractingJob<>() {
@Override
public void cleanup(final IProgressMonitor monitor) throws CleanupFailedException {
}
@Override
public void execute(final IProgressMonitor monitor) throws JobFailedException, UserCanceledException {
final Path root = Paths.get(CommonPlugin.asLocalURI(configuration.getInputFolder())
.devicePath());
this.setBlackboard(Objects.requireNonNull(blackboard));
final Map<Path, Object> yamls = new HashMap<>();
final Map<Path, YamlMapper> mappers = new HashMap<>();
Stream.concat(Discoverer.find(root, ".yml", this.logger), Discoverer.find(root, ".yaml", this.logger))
.forEach(p -> {
try (Reader reader = new FileReader(p.toFile())) {
final List<Object> yamlContents = new ArrayList<>();
new Yaml().loadAll(reader)
.forEach(yamlContents::add);
yamls.put(p, yamlContents);
mappers.put(p, new YamlMapper(yamlContents));
} catch (final IOException | YAMLException e) {
this.logger.error(String.format("%s could not be read correctly.", p), e);
}
});
this.getBlackboard()
.putDiscoveredFiles(DISCOVERER_ID, yamls);
this.getBlackboard()
.putDiscoveredFiles(MAPPER_PARTITION_KEY, mappers);
}
@Override
public String getName() {
return "YAML Discoverer Job";
}
};
}
@Override
public Set<String> getConfigurationKeys() {
return Collections.emptySet();
}
@Override
public String getID() {
return DISCOVERER_ID;
}
@Override
public String getName() {
return "YAML Discoverer";
}
}