51 lines
1.1 KiB
Java
51 lines
1.1 KiB
Java
package org.gcube.application.geoportal.service.rest;
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import lombok.extern.slf4j.Slf4j;
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import javax.ws.rs.WebApplicationException;
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import javax.ws.rs.core.Response.Status;
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import java.util.ArrayList;
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import java.util.List;
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@Slf4j
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public abstract class GuardedMethod<T> {
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private static List<Runnable> preoperations=new ArrayList<>();
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public static void addPreoperation(Runnable preoperation){
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preoperations.add(preoperation);
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}
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private T result=null;
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public GuardedMethod<T> execute() throws WebApplicationException{
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try {
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if(!preoperations.isEmpty()) {
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log.debug("Running preops (size : {} )", preoperations.size());
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for (Runnable r : preoperations)
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r.run();
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}
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log.debug("Executing actual method..");
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result=run();
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return this;
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}catch(WebApplicationException e) {
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log.error("Throwing Web Application Exception ",e);
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throw e;
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}catch(Throwable t) {
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log.error("Unexpected error ",t);
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throw new WebApplicationException("Unexpected internal error", t,Status.INTERNAL_SERVER_ERROR);
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}
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}
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public T getResult() {
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return result;
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}
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protected abstract T run() throws Exception,WebApplicationException;
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}
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