/
YamlTraversal.java
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/
YamlTraversal.java
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package org.zalando.intellij.swagger.traversal;
import com.google.common.collect.ImmutableList;
import com.intellij.codeInsight.completion.InsertHandler;
import com.intellij.codeInsight.lookup.LookupElement;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import java.util.*;
import java.util.stream.Collectors;
import org.jetbrains.yaml.YAMLUtil;
import org.jetbrains.yaml.psi.*;
import org.zalando.intellij.swagger.StringUtils;
import org.zalando.intellij.swagger.completion.field.model.common.Field;
import org.zalando.intellij.swagger.completion.value.model.common.Value;
import org.zalando.intellij.swagger.insert.YamlInsertFieldHandler;
import org.zalando.intellij.swagger.insert.YamlInsertValueHandler;
public class YamlTraversal extends Traversal {
@Override
public Optional<String> getKeyNameIfKey(final PsiElement psiElement) {
return getAsYamlKeyValue(psiElement).map(YAMLKeyValue::getKeyText);
}
private Optional<YAMLKeyValue> getAsYamlKeyValue(final PsiElement psiElement) {
return Optional.ofNullable(psiElement)
.map(PsiElement::getParent)
.filter(el -> el instanceof YAMLKeyValue)
.map(YAMLKeyValue.class::cast)
.filter(value -> value.getKey() == psiElement);
}
@Override
public Optional<String> getKeyNameOfObject(final PsiElement psiElement) {
return Optional.of(psiElement)
.filter(el -> el instanceof YAMLKeyValue)
.map(YAMLKeyValue.class::cast)
.map(YAMLKeyValue::getName);
}
@Override
public Optional<String> getParentKeyName(final PsiElement psiElement) {
return getNthOfType(psiElement, 1, YAMLKeyValue.class)
.map(YAMLKeyValue::getName)
.map(StringUtils::removeAllQuotes);
}
@Override
public List<String> getTagNames(final PsiFile psiFile) {
return getTags(psiFile).stream().map(PsiElement::getText).collect(Collectors.toList());
}
private List<PsiElement> getTags(final PsiFile psiFile) {
return getRootChildrenOfType(psiFile, YAMLKeyValue.class).stream()
.filter(yamlKeyValue -> "tags".equals(yamlKeyValue.getName()))
.map(YAMLKeyValue::getValue)
.map(YAMLPsiElement::getYAMLElements)
.flatMap(Collection::stream)
.filter(el -> el instanceof YAMLSequenceItem)
.map(YAMLSequenceItem.class::cast)
.map(YAMLSequenceItem::getYAMLElements)
.flatMap(Collection::stream)
.filter(el -> el instanceof YAMLMapping)
.map(YAMLMapping.class::cast)
.map(yamlMapping -> yamlMapping.getKeyValueByKey("name"))
.map(YAMLKeyValue::getValue)
.filter(Objects::nonNull)
.collect(Collectors.toList());
}
private <T extends PsiElement> List<T> getRootChildrenOfType(
final PsiFile psiFile, final Class<T> type) {
final PsiElement[] children =
getRootMapping(psiFile).map(PsiElement::getChildren).orElse(new PsiElement[0]);
return Arrays.stream(children)
.filter(child -> type.isAssignableFrom(child.getClass()))
.map(type::cast)
.collect(Collectors.toList());
}
@Override
public void addReferenceDefinition(final String path, PsiElement anchorPsiElement) {
YAMLUtil.createI18nRecord(
((YAMLFile) anchorPsiElement.getContainingFile()), path.split("/"), "");
}
private Optional<YAMLMapping> getRootMapping(final PsiFile psiFile) {
return Arrays.stream(psiFile.getChildren())
.filter(el -> el instanceof YAMLDocument)
.findFirst()
.map(PsiElement::getChildren)
.flatMap(
children ->
Arrays.stream(children)
.filter(el -> el instanceof YAMLMapping)
.map(YAMLMapping.class::cast)
.findFirst());
}
@Override
public boolean isUniqueArrayStringValue(final String value, final PsiElement psiElement) {
return Optional.ofNullable(psiElement.getParent())
.map(PsiElement::getParent)
.map(PsiElement::getParent)
.filter(el -> el instanceof YAMLSequence)
.map(el -> Arrays.asList(el.getChildren()))
.map(children -> children.stream().filter(c -> c instanceof YAMLSequenceItem))
.map(childrenStream -> childrenStream.map(YAMLSequenceItem.class::cast))
.map(
childrenStream ->
childrenStream.noneMatch(
item ->
item.getValue() != null
&& value.equals(
StringUtils.removeAllQuotes(item.getValue().getText()))))
.orElse(true);
}
@Override
public InsertHandler<LookupElement> createInsertFieldHandler(final Field field) {
return new YamlInsertFieldHandler(field);
}
@Override
public InsertHandler<LookupElement> createInsertValueHandler(final Value value) {
return new YamlInsertValueHandler();
}
@Override
public List<String> getSecurityScopesIfOAuth2(final PsiElement securityDefinitionItem) {
final List<YAMLKeyValue> properties = getChildProperties(securityDefinitionItem);
final boolean isOAuth2 =
properties.stream()
.anyMatch(
prop -> {
final Optional<String> value =
Optional.ofNullable(prop.getValue())
.map(YAMLValue::getText)
.map(StringUtils::removeAllQuotes);
return "type".equals(prop.getName()) && Optional.of("oauth2").equals(value);
});
if (isOAuth2) {
return properties.stream()
.filter(prop -> "scopes".equals(prop.getName()))
.map(this::getChildProperties)
.flatMap(Collection::stream)
.map(YAMLKeyValue::getName)
.collect(Collectors.toList());
}
return ImmutableList.of();
}
private List<YAMLKeyValue> getChildProperties(final PsiElement element) {
return toYamlKeyValue(element)
.map(YAMLKeyValue::getValue)
.map(YAMLValue::getChildren)
.map(Arrays::asList)
.map(children -> children.stream().map(this::toYamlKeyValue))
.map(
children ->
children
.filter(Optional::isPresent)
.map(Optional::get)
.collect(Collectors.toList()))
.orElse(ImmutableList.of());
}
private Optional<YAMLKeyValue> toYamlKeyValue(final PsiElement psiElement) {
return psiElement instanceof YAMLKeyValue
? Optional.of((YAMLKeyValue) psiElement)
: Optional.empty();
}
@Override
public Optional<String> extractSecurityNameFromSecurityItem(final PsiElement psiElement) {
return Optional.of(psiElement)
.map(PsiElement::getChildren)
.map(children -> children.length > 0 ? children[0] : null)
.map(PsiElement::getChildren)
.map(children -> children.length > 0 ? children[0] : null)
.filter(el -> el instanceof YAMLKeyValue)
.map(YAMLKeyValue.class::cast)
.map(YAMLKeyValue::getName);
}
}