org.mule.runtime.config.internal.CompositeOptionalObjectsController Maven / Gradle / Ivy
/*
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.runtime.config.internal;
import static org.mule.runtime.api.util.Preconditions.checkArgument;
import org.mule.runtime.core.internal.util.ArrayUtils;
import com.google.common.collect.ImmutableList;
import java.util.Collection;
import java.util.List;
/**
* Implementation of {@link OptionalObjectsController} which groups a list of controllers and executes every operation on all of
* them.
*
* @since 3.7.0
*/
public class CompositeOptionalObjectsController implements OptionalObjectsController {
private final List controllers;
public CompositeOptionalObjectsController(OptionalObjectsController... controllers) {
checkArgument(!ArrayUtils.isEmpty(controllers), "cannot compose empty controllers list");
this.controllers = ImmutableList.copyOf(controllers);
}
@Override
public void registerOptionalKey(String key) {
for (OptionalObjectsController controller : controllers) {
controller.registerOptionalKey(key);
}
}
@Override
public void discardOptionalObject(String key) {
for (OptionalObjectsController controller : controllers) {
controller.discardOptionalObject(key);
}
}
@Override
public boolean isOptional(String key) {
for (OptionalObjectsController controller : controllers) {
if (controller.isOptional(key)) {
return true;
}
}
return false;
}
@Override
public boolean isDiscarded(String key) {
for (OptionalObjectsController controller : controllers) {
if (controller.isDiscarded(key)) {
return true;
}
}
return false;
}
@Override
public Object getDiscardedObjectPlaceholder() {
for (OptionalObjectsController controller : controllers) {
Object placeHolder = controller.getDiscardedObjectPlaceholder();
if (placeHolder != null) {
return placeHolder;
}
}
return null;
}
@Override
public Collection getAllOptionalKeys() {
ImmutableList.Builder builder = ImmutableList.builder();
for (OptionalObjectsController controller : controllers) {
builder.addAll(controller.getAllOptionalKeys());
}
return builder.build();
}
}