/*
* Copyright 2016 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.api.internal.project.taskfactory;
import org.gradle.api.internal.TaskInternal;
import org.gradle.internal.Factory;
import org.gradle.internal.reflect.JavaReflectionUtil;
import org.gradle.util.DeprecationLogger;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.concurrent.Callable;
public class TaskPropertyInfo implements Comparable<TaskPropertyInfo> {
private static final ValidationAction NO_OP_VALIDATION_ACTION = new ValidationAction() {
public void validate(String propertyName, Object value, Collection<String> messages) {
}
};
private static final TaskPropertyValue NO_OP_VALUE = new TaskPropertyValue() {
public Object getValue() {
return null;
}
public void checkNotNull(Collection<String> messages) {
}
public void checkValid(Collection<String> messages) {
}
};
private static final UpdateAction NO_OP_CONFIGURATION_ACTION = new UpdateAction() {
public void update(TaskInternal task, Callable<Object> futureValue) {
}
};
private final TaskPropertyInfo parent;
private final String propertyName;
private final Class<? extends Annotation> propertyType;
private final Method method;
private final ValidationAction validationAction;
private final UpdateAction configureAction;
private final boolean optional;
TaskPropertyInfo(TaskPropertyInfo parent, String propertyName, Class<? extends Annotation> propertyType, Method method, ValidationAction validationAction, UpdateAction configureAction, boolean optional) {
this.parent = parent;
this.propertyName = propertyName;
this.propertyType = propertyType;
this.method = method;
this.validationAction = validationAction == null ? NO_OP_VALIDATION_ACTION : validationAction;
this.configureAction = configureAction == null ? NO_OP_CONFIGURATION_ACTION : configureAction;
this.optional = optional;
}
@Override
public String toString() {
return String.format("@%s %s", propertyType.getSimpleName(), propertyName);
}
public String getName() {
return propertyName;
}
public Class<? extends Annotation> getPropertyType() {
return propertyType;
}
public UpdateAction getConfigureAction() {
return configureAction;
}
public TaskPropertyValue getValue(Object rootObject) {
final Object bean;
if (parent != null) {
TaskPropertyValue parentValue = parent.getValue(rootObject);
if (parentValue.getValue() == null) {
return NO_OP_VALUE;
}
bean = parentValue.getValue();
} else {
bean = rootObject;
}
final Object value = DeprecationLogger.whileDisabled(new Factory<Object>() {
public Object create() {
return JavaReflectionUtil.method(Object.class, method).invoke(bean);
}
});
return new TaskPropertyValue() {
@Override
public Object getValue() {
return value;
}
@Override
public void checkNotNull(Collection<String> messages) {
if (value == null && !optional) {
messages.add(String.format("No value has been specified for property '%s'.", propertyName));
}
}
@Override
public void checkValid(Collection<String> messages) {
if (value != null) {
validationAction.validate(propertyName, value, messages);
}
}
};
}
@Override
public int compareTo(TaskPropertyInfo o) {
return propertyName.compareTo(o.getName());
}
}