org.springframework.aot.nativex.ProxyHintsWriter Maven / Gradle / Ivy
/*
* Copyright 2002-2022 the original author or authors.
*
* 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
*
* https://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 org.springframework.aot.nativex;
import java.util.LinkedHashMap;
import java.util.Map;
import org.springframework.aot.hint.JdkProxyHint;
import org.springframework.aot.hint.ProxyHints;
/**
* Write {@link JdkProxyHint}s contained in a {@link ProxyHints} to the JSON
* output expected by the GraalVM {@code native-image} compiler, typically named
* {@code proxy-config.json}.
*
* @author Sebastien Deleuze
* @author Stephane Nicoll
* @author Brian Clozel
* @since 6.0
* @see Dynamic Proxy in Native Image
* @see Native Image Build Configuration
*/
class ProxyHintsWriter {
public static final ProxyHintsWriter INSTANCE = new ProxyHintsWriter();
public void write(BasicJsonWriter writer, ProxyHints hints) {
writer.writeArray(hints.jdkProxyHints().map(this::toAttributes).toList());
}
private Map toAttributes(JdkProxyHint hint) {
Map attributes = new LinkedHashMap<>();
handleCondition(attributes, hint);
attributes.put("interfaces", hint.getProxiedInterfaces());
return attributes;
}
private void handleCondition(Map attributes, JdkProxyHint hint) {
if (hint.getReachableType() != null) {
Map conditionAttributes = new LinkedHashMap<>();
conditionAttributes.put("typeReachable", hint.getReachableType());
attributes.put("condition", conditionAttributes);
}
}
}