Add simple chain implementations of transport hooks and loggers
Allows callers to effectively run multiple hooks and loggers without modifying the UploadPack/ReceivePack interface. Change-Id: I5b388816b63036ffff08ef3a9b857ccb764cb8c4
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/*
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* Copyright (C) 2011, Google Inc.
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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* under the terms of the Eclipse Distribution License v1.0 which
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* accompanies this distribution, is reproduced below, and is
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
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* names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.transport;
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import java.util.Collection;
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import java.util.List;
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/**
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* {@link PostReceiveHook} that delegates to a list of other hooks.
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* <p>
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* Hooks are run in the order passed to the constructor.
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*/
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public class PostReceiveHookChain implements PostReceiveHook {
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private final PostReceiveHook[] hooks;
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private final int count;
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/**
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* Create a new hook chaining the given hooks together.
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*
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* @param hooks
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* hooks to execute, in order.
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* @return a new hook chain of the given hooks.
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*/
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public static PostReceiveHook newChain(
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List<? extends PostReceiveHook> hooks) {
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PostReceiveHook[] newHooks = new PostReceiveHook[hooks.size()];
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int i = 0;
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for (PostReceiveHook hook : hooks)
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if (hook != PostReceiveHook.NULL)
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newHooks[i++] = hook;
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if (i == 0)
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return PostReceiveHook.NULL;
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else if (i == 1)
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return newHooks[0];
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else
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return new PostReceiveHookChain(newHooks, i);
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}
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public void onPostReceive(ReceivePack rp,
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Collection<ReceiveCommand> commands) {
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for (int i = 0; i < count; i++)
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hooks[i].onPostReceive(rp, commands);
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}
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private PostReceiveHookChain(PostReceiveHook[] hooks, int count) {
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this.hooks = hooks;
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this.count = count;
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}
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}
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/*
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* Copyright (C) 2011, Google Inc.
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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* under the terms of the Eclipse Distribution License v1.0 which
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* accompanies this distribution, is reproduced below, and is
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
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* names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.transport;
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import java.util.Collection;
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import java.util.List;
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/**
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* {@link PreReceiveHook} that delegates to a list of other hooks.
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* <p>
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* Hooks are run in the order passed to the constructor.
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*/
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public class PreReceiveHookChain implements PreReceiveHook {
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private final PreReceiveHook[] hooks;
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private final int count;
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/**
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* Create a new hook chaining the given hooks together.
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*
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* @param hooks
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* hooks to execute, in order.
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* @return a new hook chain of the given hooks.
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*/
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public static PreReceiveHook newChain(List<? extends PreReceiveHook> hooks) {
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PreReceiveHook[] newHooks = new PreReceiveHook[hooks.size()];
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int i = 0;
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for (PreReceiveHook hook : hooks)
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if (hook != PreReceiveHook.NULL)
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newHooks[i++] = hook;
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if (i == 0)
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return PreReceiveHook.NULL;
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else if (i == 1)
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return newHooks[0];
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else
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return new PreReceiveHookChain(newHooks, i);
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}
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public void onPreReceive(ReceivePack rp,
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Collection<ReceiveCommand> commands) {
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for (int i = 0; i < count; i++)
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hooks[i].onPreReceive(rp, commands);
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}
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private PreReceiveHookChain(PreReceiveHook[] hooks, int count) {
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this.hooks = hooks;
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this.count = count;
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}
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}
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@ -0,0 +1,115 @@
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/*
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* Copyright (C) 2011, Google Inc.
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
|
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* under the terms of the Eclipse Distribution License v1.0 which
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||||
* accompanies this distribution, is reproduced below, and is
|
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
|
||||
*
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* Redistribution and use in source and binary forms, with or
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||||
* without modification, are permitted provided that the following
|
||||
* conditions are met:
|
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*
|
||||
* - Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
*
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* - Redistributions in binary form must reproduce the above
|
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* copyright notice, this list of conditions and the following
|
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
|
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
|
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* names of its contributors may be used to endorse or promote
|
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* products derived from this software without specific prior
|
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* written permission.
|
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*
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||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
||||
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.transport;
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import java.util.Collection;
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import java.util.List;
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import org.eclipse.jgit.lib.ObjectId;
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/**
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* {@link PreUploadHook} that delegates to a list of other hooks.
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* <p>
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* Hooks are run in the order passed to the constructor. If running a method on
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* one hook throws an exception, execution of remaining hook methods is aborted.
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*/
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public class PreUploadHookChain implements PreUploadHook {
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private final PreUploadHook[] hooks;
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private final int count;
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/**
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* Create a new hook chaining the given hooks together.
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*
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* @param hooks
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* hooks to execute, in order.
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* @return a new hook chain of the given hooks.
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*/
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public static PreUploadHook newChain(List<? extends PreUploadHook> hooks) {
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PreUploadHook[] newHooks = new PreUploadHook[hooks.size()];
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int i = 0;
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for (PreUploadHook hook : hooks)
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if (hook != PreUploadHook.NULL)
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newHooks[i++] = hook;
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if (i == 0)
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return PreUploadHook.NULL;
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else if (i == 1)
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return newHooks[0];
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else
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return new PreUploadHookChain(newHooks, i);
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}
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public void onPreAdvertiseRefs(UploadPack up)
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throws UploadPackMayNotContinueException {
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for (int i = 0; i < count; i++)
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hooks[i].onPreAdvertiseRefs(up);
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}
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public void onBeginNegotiateRound(UploadPack up,
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Collection<? extends ObjectId> wants, int cntOffered)
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throws UploadPackMayNotContinueException {
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for (int i = 0; i < count; i++)
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hooks[i].onBeginNegotiateRound(up, wants, cntOffered);
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}
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public void onEndNegotiateRound(UploadPack up,
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Collection<? extends ObjectId> wants, int cntCommon,
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int cntNotFound, boolean ready)
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throws UploadPackMayNotContinueException {
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for (int i = 0; i < count; i++)
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hooks[i].onEndNegotiateRound(up, wants, cntCommon, cntNotFound, ready);
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}
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public void onSendPack(UploadPack up,
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Collection<? extends ObjectId> wants,
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Collection<? extends ObjectId> haves)
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throws UploadPackMayNotContinueException {
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for (int i = 0; i < count; i++)
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hooks[i].onSendPack(up, wants, haves);
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}
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private PreUploadHookChain(PreUploadHook[] hooks, int count) {
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this.hooks = hooks;
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this.count = count;
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}
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}
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@ -0,0 +1,90 @@
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/*
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* Copyright (C) 2011, Google Inc.
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* and other copyright owners as documented in the project's IP log.
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*
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* This program and the accompanying materials are made available
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* under the terms of the Eclipse Distribution License v1.0 which
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* accompanies this distribution, is reproduced below, and is
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* available at http://www.eclipse.org/org/documents/edl-v10.php
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* - Neither the name of the Eclipse Foundation, Inc. nor the
|
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* names of its contributors may be used to endorse or promote
|
||||
* products derived from this software without specific prior
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||||
* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.eclipse.jgit.transport;
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import java.util.List;
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import org.eclipse.jgit.storage.pack.PackWriter;
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/**
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* {@link UploadPackLogger} that delegates to a list of other loggers.
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* <p>
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* loggers are run in the order passed to the constructor.
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*/
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public class UploadPackLoggerChain implements UploadPackLogger {
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private final UploadPackLogger[] loggers;
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private final int count;
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/**
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* Create a new logger chaining the given loggers together.
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*
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* @param loggers
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* loggers to execute, in order.
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* @return a new logger chain of the given loggers.
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*/
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public static UploadPackLogger newChain(
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List<? extends UploadPackLogger> loggers) {
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UploadPackLogger[] newLoggers = new UploadPackLogger[loggers.size()];
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int i = 0;
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for (UploadPackLogger logger : loggers)
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if (logger != UploadPackLogger.NULL)
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newLoggers[i++] = logger;
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if (i == 0)
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return UploadPackLogger.NULL;
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else if (i == 1)
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return newLoggers[0];
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else
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return new UploadPackLoggerChain(newLoggers, i);
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}
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public void onPackStatistics(PackWriter.Statistics stats) {
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for (int i = 0; i < count; i++)
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loggers[i].onPackStatistics(stats);
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}
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private UploadPackLoggerChain(UploadPackLogger[] loggers, int count) {
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this.loggers = loggers;
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this.count = count;
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}
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}
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