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package org.onap.graphinventory.generate;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.stream.Collectors;
import org.apache.maven.plugin.logging.Log;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import io.swagger.models.Path;
import io.swagger.models.Swagger;
import io.swagger.models.parameters.Parameter;
import io.swagger.models.parameters.SerializableParameter;
import io.swagger.parser.SwaggerParser;
public class SwaggerConverter {
private final Log log;
public SwaggerConverter(Log log) {
this.log = log;
}
public Map<String, ObjectType> getDoc(String swaggerLocation) throws JsonProcessingException {
Swagger swagger = new SwaggerParser().read(swaggerLocation);
Map<String, Path> paths = swagger.getPaths().entrySet().stream()
.filter(item -> !item.getKey().endsWith("/relationship-list/relationship"))
.collect(Collectors.toMap(item -> item.getKey(), item -> item.getValue()));
Matcher pluralMatcher;
Matcher singularMatcher;
Matcher topLevelMatcher;
Map<String, ObjectType> output = new HashMap<>();
for (Map.Entry<String, Path> entry : paths.entrySet()) {
pluralMatcher = Patterns.pluralPattern.matcher(entry.getKey());
singularMatcher = Patterns.singularPattern.matcher(entry.getKey());
topLevelMatcher = Patterns.topLevelPattern.matcher(entry.getKey());
ObjectType item;
if (pluralMatcher.matches()) {
if (!output.containsKey(pluralMatcher.group("name"))) {
output.put(pluralMatcher.group("name"), new ObjectType());
}
item = output.get(pluralMatcher.group("name"));
item.setType("plural");
item.setName(pluralMatcher.group("name"));
item.setPartialUri(pluralMatcher.group("partial"));
item.getPaths().add(entry.getKey());
if (topLevelMatcher.matches()) {
item.setTopLevel(topLevelMatcher.group(1));
if (!output.containsKey(topLevelMatcher.group(1))) {
output.put(topLevelMatcher.group(1), new ObjectType());
output.get(topLevelMatcher.group(1)).setType("top level");
output.get(topLevelMatcher.group(1)).setName(topLevelMatcher.group(1));
output.get(topLevelMatcher.group(1)).setPartialUri("/" + topLevelMatcher.group(1));
output.get(topLevelMatcher.group(1)).getPaths().add("/" + topLevelMatcher.group(1));
}
}
} else if (singularMatcher.matches()) {
if (!output.containsKey(singularMatcher.group("name"))) {
output.put(singularMatcher.group("name"), new ObjectType());
item = output.get(singularMatcher.group("name"));
item.setType("singular");
item.setName(singularMatcher.group("name"));
item.setPartialUri(singularMatcher.group("partial"));
item.getPaths().add(entry.getKey());
if (topLevelMatcher.matches()) {
item.setTopLevel(topLevelMatcher.group(1));
if (!output.containsKey(topLevelMatcher.group(1))) {
output.put(topLevelMatcher.group(1), new ObjectType());
output.get(topLevelMatcher.group(1)).setType("top level");
output.get(topLevelMatcher.group(1)).setName(topLevelMatcher.group(1));
output.get(topLevelMatcher.group(1)).setPartialUri("/" + topLevelMatcher.group(1));
output.get(topLevelMatcher.group(1)).getPaths().add("/" + topLevelMatcher.group(1));
}
}
List<Parameter> parameters = entry.getValue().getGet().getParameters();
if (parameters != null) {
parameters.stream().filter(param -> "path".equals(param.getIn())).collect(Collectors.toList());
}
for (Parameter p : parameters) {
ObjectField field = new ObjectField();
field.setName(p.getName());
field.setType(((SerializableParameter) p).getType());
item.getFields().add(field);
}
} else {
item = output.get(singularMatcher.group("name"));
if (singularMatcher.group("partial").contains(item.getName() + ".")) {
item.setPartialUri(singularMatcher.group("partial"));
}
item.getPaths().add(entry.getKey());
}
}
}
ObjectMapper mapper = new ObjectMapper();
for (ObjectType item : output.values()) {
for (String path : item.getPaths()) {
String partialUriReplacer = item.getPartialUri().replaceAll("\\{[^}]+\\}", "[^/]+");
String childParentUri = path.replaceFirst(partialUriReplacer + "$", "");
for (ObjectType itemToUpdate : output.values()) {
if (itemToUpdate.getPaths().stream()
.anyMatch(itemToUpdateUri -> itemToUpdateUri.equals(childParentUri))) {
itemToUpdate.getChildren().add(item.getName());
}
}
}
}
for (Map.Entry<String, ObjectType> item : output.entrySet()) {
if (item.getValue().getType().equals("plural")) {
Set<String> children = item.getValue().getChildren();
// should only be one
if (!children.isEmpty()) {
item.getValue().setAdditionalName(children.iterator().next());
}
}
Set<String> pluralChildren = new HashSet<>();
for (String child : item.getValue().getChildren()) {
if (output.get(child).getType().equals("plural")) {
Set<String> children = output.get(child).getChildren();
pluralChildren.addAll(children);
}
}
item.getValue().getChildren().addAll(pluralChildren);
if (item.getValue().getType().equals("plural")) {
for (String child : item.getValue().getChildren()) {
output.get(child)
.setPartialUri(item.getValue().getPartialUri() + output.get(child).getPartialUri());
}
}
if (!item.getValue().getFields().isEmpty()) {
Matcher templates = Patterns.urlTemplatePattern.matcher(item.getValue().getPartialUri());
List<String> localFields = new ArrayList<>();
while (templates.find()) {
localFields.add(templates.group(2));
}
item.getValue().setFields(item.getValue().getFields().stream()
.filter(f -> localFields.contains(f.getName())).collect(Collectors.toList()));
}
}
output.values().stream().filter(item -> item.getType().equals("plural"))
.forEach(item -> item.getChildren().clear());
log.debug(mapper.writerWithDefaultPrettyPrinter().writeValueAsString(output));
return output;
}
}
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