stormy.pythian.core.description.ComponentDescriptionFactory.java Source code

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Here is the source code for stormy.pythian.core.description.ComponentDescriptionFactory.java

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/**
 * Copyright 2013-2015 Pierre Merienne
 *
 * 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 stormy.pythian.core.description;

import static com.google.common.base.Preconditions.checkArgument;

import org.springframework.beans.factory.annotation.Autowired;

import stormy.pythian.model.annotation.Documentation;
import stormy.pythian.model.component.Component;

@org.springframework.stereotype.Component
public class ComponentDescriptionFactory {

    @Autowired
    private PropertyDescriptionFactory propertyDescriptionFactory;

    @Autowired
    private InputStreamDescriptionFactory inputStreamDescriptionFactory;

    @Autowired
    private OutputStreamDescriptionFactory outputStreamDescriptionFactory;

    @Autowired
    private ReferencedStateDescriptionFactory stateDescriptionFactory;

    public ComponentDescription createDescription(Class<? extends Component> componentClass) {
        checkArgument(componentClass != null, "Component class is mandatory");

        Documentation documentation = componentClass.getAnnotation(Documentation.class);
        checkArgument(documentation != null,
                "No documentation found for " + componentClass + " but documentation is mandatory!");

        ComponentDescription description = new ComponentDescription(componentClass, documentation.name(),
                documentation.description(), documentation.type());
        description.addProperties(propertyDescriptionFactory.createPropertyDescriptions(componentClass));
        description.addInputStreams(inputStreamDescriptionFactory.createInputStreamDescriptions(componentClass));
        description.addOutputStreams(outputStreamDescriptionFactory.createOutputStreamDescriptions(componentClass));
        description.addStates(stateDescriptionFactory.createDescriptions(componentClass));

        description.ensureNoDuplicatedInputStreams();
        description.ensureOutputStreamReference();
        description.ensureNoDuplicatedOutputStreams();
        description.ensureNoDuplicatedProperties();
        description.ensureNoDuplicatedStateName();

        return description;
    }

}