/*
* Copyright 2015 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
*
* 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 org.gradle.model.internal.core;
import net.jcip.annotations.NotThreadSafe;
import org.gradle.api.Action;
import org.gradle.model.ModelViewClosedException;
import org.gradle.model.ReadOnlyModelViewException;
import org.gradle.model.WriteOnlyModelViewException;
import org.gradle.model.internal.core.rule.describe.ModelRuleDescriptor;
import org.gradle.model.internal.type.ModelType;
@NotThreadSafe
public class DefaultModelViewState implements ModelViewState {
private final ModelPath path;
private final ModelType<?> type;
private final ModelRuleDescriptor ruleDescriptor;
private boolean closed;
private final boolean mutable;
private final boolean canReadChildren;
public DefaultModelViewState(ModelPath path, ModelType<?> type, ModelRuleDescriptor ruleDescriptor, boolean mutable, boolean canReadChildren) {
this.path = path;
this.type = type;
this.ruleDescriptor = ruleDescriptor;
this.mutable = mutable;
this.canReadChildren = canReadChildren;
}
public void close() {
closed = true;
}
public Action<Object> closer() {
return new Action<Object>() {
@Override
public void execute(Object o) {
close();
}
};
}
@Override
public void assertCanMutate() {
if (closed) {
throw new ModelViewClosedException(path, type, ruleDescriptor);
}
if (!mutable) {
throw new ReadOnlyModelViewException(path, type, ruleDescriptor);
}
}
@Override
public void assertCanReadChildren() {
if (!canReadChildren) {
throw new WriteOnlyModelViewException(null, path, type, ruleDescriptor);
}
}
@Override
public void assertCanReadChild(String name) {
if (!canReadChildren) {
throw new WriteOnlyModelViewException(name, path, type, ruleDescriptor);
}
}
@Override
public boolean isCanMutate() {
return mutable && !closed;
}
public boolean isClosed() {
return closed;
}
}