141 lines
4.1 KiB
Java
141 lines
4.1 KiB
Java
package org.gcube.smartgears.configuration.application;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import javax.xml.bind.Unmarshaller;
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import javax.xml.bind.annotation.XmlAnyElement;
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import javax.xml.bind.annotation.XmlElement;
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import javax.xml.bind.annotation.XmlRootElement;
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import org.gcube.common.validator.ValidationError;
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import org.gcube.common.validator.Validator;
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import org.gcube.common.validator.ValidatorFactory;
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import org.gcube.common.validator.annotations.IsValid;
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import org.gcube.smartgears.handlers.application.ApplicationHandler;
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import org.gcube.smartgears.handlers.application.ApplicationLifecycleHandler;
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import org.gcube.smartgears.handlers.application.RequestHandler;
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import org.w3c.dom.Element;
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/**
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* The {@link ApplicationHandler}s that manage the application.
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*
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* @author Fabio Simeoni
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*
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*/
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@XmlRootElement(name="handlers")
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public class ApplicationHandlers {
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@XmlElement(name="lifecycle") @IsValid
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private LifecycleHandlers lifecycleHandlers = new LifecycleHandlers();
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@XmlElement(name="request") @IsValid
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private RequestHandlers requestHandlers = new RequestHandlers();
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public ApplicationHandlers() {}
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/**
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* Returns the {@link ApplicationLifecycleHandler}s for the service.
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* @return the lifecycle handlers
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*/
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public List<ApplicationLifecycleHandler> lifecycleHandlers() {
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return lifecycleHandlers.values;
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}
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/**
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* Sets the {@link ApplicationLifecycleHandler}s for the service.
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* @param handlers the lifecycle handlers
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* @return this configuration
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*/
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public ApplicationHandlers set(ApplicationLifecycleHandler ... handlers) {
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this.lifecycleHandlers = new LifecycleHandlers(Arrays.asList(handlers));
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return this;
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}
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/**
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* Returns the {@link RequestHandler}s for the service.
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* @return the lifetime handlers
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*/
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public List<RequestHandler> requestHandlers() {
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return requestHandlers.values;
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}
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/**
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* Sets the {@link RequestHandler}s for the service.
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* @param handlers the request handlers
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* @return this configuration
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*/
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public ApplicationHandlers set(RequestHandler ... handlers) {
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this.requestHandlers = new RequestHandlers(Arrays.asList(handlers));
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return this;
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}
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public void validate() {
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List<String> msgs = new ArrayList<String>();
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Validator validator = ValidatorFactory.validator();
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for (ValidationError error : validator.validate(this))
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msgs.add(error.toString());
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if (!msgs.isEmpty())
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throw new IllegalStateException("invalid configuration: "+msgs);
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}
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//////////////// HELPER BINDING CLASSES
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//used internally to introduce level of nesting in JAXB whilst preserving arbitrary extension
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private static class LifecycleHandlers {
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@SuppressWarnings("all")
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LifecycleHandlers() { //needed for deserialisation
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}
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LifecycleHandlers(List<ApplicationLifecycleHandler> handlers) {
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this.values=handlers;
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}
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@XmlAnyElement(lax=true)
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List<ApplicationLifecycleHandler> values = new ArrayList<ApplicationLifecycleHandler>();
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//since we use @AnyElement, after deserialisation, we check there are no DOM elements
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@SuppressWarnings("unused")
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void afterUnmarshal(Unmarshaller u, Object parent) {
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for (Object o : values)
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if (o instanceof Element)
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throw new RuntimeException("invalid handler detected in configuration: "+Element.class.cast(o).getLocalName());
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}
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}
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//used internally to introduce level of nesting in JAXB whilst preserving arbitrary extension
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private static class RequestHandlers {
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@SuppressWarnings("all")
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RequestHandlers() { //needed for deserialisation
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}
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RequestHandlers(List<RequestHandler> handlers) {
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this.values=handlers;
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}
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@XmlAnyElement(lax=true)
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List<RequestHandler> values = new ArrayList<RequestHandler>();
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//since we use @AnyElement, after deserialisation, we check there are no DOM elements
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@SuppressWarnings("unused")
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void afterUnmarshal(Unmarshaller u, Object parent) {
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for (Object o : values)
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if (o instanceof Element)
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throw new RuntimeException("invalid handler detected in configuration: "+Element.class.cast(o).getLocalName());
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}
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}
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} |