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StandardMyService.java
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StandardMyService.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 ${package};
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.apache.nifi.annotation.documentation.CapabilityDescription;
import org.apache.nifi.annotation.documentation.Tags;
import org.apache.nifi.annotation.lifecycle.OnDisabled;
import org.apache.nifi.annotation.lifecycle.OnEnabled;
import org.apache.nifi.components.PropertyDescriptor;
import org.apache.nifi.controller.AbstractControllerService;
import org.apache.nifi.controller.ConfigurationContext;
import org.apache.nifi.processor.exception.ProcessException;
import org.apache.nifi.processor.util.StandardValidators;
import org.apache.nifi.reporting.InitializationException;
@Tags({ "example"})
@CapabilityDescription("Example ControllerService implementation of MyService.")
public class StandardMyService extends AbstractControllerService implements MyService {
public static final PropertyDescriptor MY_PROPERTY = new PropertyDescriptor
.Builder().name("MY_PROPERTY")
.displayName("My Property")
.description("Example Property")
.required(true)
.addValidator(StandardValidators.NON_EMPTY_VALIDATOR)
.build();
private static final List<PropertyDescriptor> properties;
static {
final List<PropertyDescriptor> props = new ArrayList<>();
props.add(MY_PROPERTY);
properties = Collections.unmodifiableList(props);
}
@Override
protected List<PropertyDescriptor> getSupportedPropertyDescriptors() {
return properties;
}
/**
* @param context
* the configuration context
* @throws InitializationException
* if unable to create a database connection
*/
@OnEnabled
public void onEnabled(final ConfigurationContext context) throws InitializationException {
}
@OnDisabled
public void shutdown() {
}
@Override
public void execute() {
}
}