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package org.eclipse.jgit.transport;

import java.util.List;

/**
 * {@link AdvertiseRefsHook} that delegates to a list of other hooks.
 * 

* Hooks are run in the order passed to the constructor. A hook may inspect or * modify the results of the previous hooks in the chain by calling * {@link UploadPack#getAdvertisedRefs()}, or * {@link BaseReceivePack#getAdvertisedRefs()} or * {@link BaseReceivePack#getAdvertisedObjects()}. */ public class AdvertiseRefsHookChain implements AdvertiseRefsHook { private final AdvertiseRefsHook[] hooks; private final int count; /** * Create a new hook chaining the given hooks together. * * @param hooks * hooks to execute, in order. * @return a new hook chain of the given hooks. */ public static AdvertiseRefsHook newChain(List hooks) { AdvertiseRefsHook[] newHooks = new AdvertiseRefsHook[hooks.size()]; int i = 0; for (AdvertiseRefsHook hook : hooks) if (hook != AdvertiseRefsHook.DEFAULT) newHooks[i++] = hook; if (i == 0) return AdvertiseRefsHook.DEFAULT; else if (i == 1) return newHooks[0]; else return new AdvertiseRefsHookChain(newHooks, i); } public void advertiseRefs(BaseReceivePack rp) throws ServiceMayNotContinueException { for (int i = 0; i < count; i++) hooks[i].advertiseRefs(rp); } public void advertiseRefs(UploadPack rp) throws ServiceMayNotContinueException { for (int i = 0; i < count; i++) hooks[i].advertiseRefs(rp); } private AdvertiseRefsHookChain(AdvertiseRefsHook[] hooks, int count) { this.hooks = hooks; this.count = count; } }





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