com.predic8.membrane.core.graphql.model.Field Maven / Gradle / Ivy
/* Copyright 2023 predic8 GmbH, www.predic8.com
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. */
package com.predic8.membrane.core.graphql.model;
import com.predic8.membrane.core.graphql.ParserUtil;
import com.predic8.membrane.core.graphql.ParsingException;
import com.predic8.membrane.core.graphql.Tokenizer;
import java.io.IOException;
import java.util.List;
import java.util.Objects;
import static com.predic8.membrane.core.graphql.ParserUtil.*;
import static com.predic8.membrane.core.graphql.Tokenizer.Type.NAME;
import static com.predic8.membrane.core.graphql.Tokenizer.Type.PUNCTUATOR;
public class Field extends Selection {
String alias;
String name;
List arguments;
List directives;
List selections;
public Field() {
}
public Field(String name, List selections) {
this.name = name;
this.selections = selections;
}
public Field(String alias, String name, List arguments, List directives, List selections) {
this.alias = alias;
this.name = name;
this.arguments = arguments;
this.directives = directives;
this.selections = selections;
}
public void parse(Tokenizer tokenizer) throws IOException, ParsingException {
if (tokenizer.type() != NAME)
throw new ParsingException("Expected name.", tokenizer.position());
String s = tokenizer.string();
if (!tokenizer.advance()) {
name = s;
return;
}
if (tokenizer.type() == PUNCTUATOR && tokenizer.punctuator() == ':') {
alias = s;
tokenizer.mustAdvance();
if (tokenizer.type() != NAME)
throw new ParsingException("Expected name.", tokenizer.position());
name = tokenizer.string();
if (!tokenizer.advance())
return;
} else {
name = s;
}
arguments = parseOptionalArguments(tokenizer);
if (arguments != null)
if (!tokenizer.advance())
return;
directives = parseDirectivesOpt(tokenizer);
if (directives != null)
if (!tokenizer.advance())
return;
selections = parseSelectionSetOpt(tokenizer);
if (selections == null)
tokenizer.revert();
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Field field = (Field) o;
return Objects.equals(alias, field.alias) && Objects.equals(name, field.name) && Objects.equals(arguments, field.arguments) && Objects.equals(directives, field.directives) && Objects.equals(selections, field.selections);
}
@Override
public int hashCode() {
return Objects.hash(alias, name, arguments, directives, selections);
}
@Override
public String toString() {
return "Field{" +
"alias='" + alias + '\'' +
", name='" + name + '\'' +
", arguments=" + arguments +
", directives=" + directives +
", selections=" + selections +
'}';
}
public String getName() {
return name;
}
public List getSelections() {
return selections;
}
}