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    • ars.invoke.MultiInvoker Maven / Gradle / Ivy

    The newest version!
    package ars.invoke;

import java.util.List;
import java.util.ArrayList;
import java.util.concurrent.Callable;

import ars.util.Servers;
import ars.invoke.request.Requester;

/**
 * 多资源调用实现
 *
 * @author wuyongqiang
 */
public class MultiInvoker implements Invoker {

    @Override
    public Object execute(final Requester requester, Resource resource) throws Exception {
        String[] uris = ((MultiResource) resource).getResources();
        List results = new ArrayList(uris.length);
        for (final String uri : uris) {
            if (uri.equals(requester.getUri())) {
                throw new RuntimeException("Resource address cycle reference:" + uri);
            }
            Object result = Servers.submit(new Callable() {

                @Override
                public Object call() throws Exception {
                    return requester.execute(uri);
                }

            }).get();
            if (result instanceof Exception) {
                throw (Exception) result;
            }
            results.add(result);
        }
        return results;
    }

}
    
    
    
    

    




    
    
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