mirror of
https://github.com/scm-manager/scm-manager.git
synced 2025-11-14 09:25:43 +01:00
remove unused classes
This commit is contained in:
Sebastian Sdorra
301
scm-webapp/src/main/java/sonia/scm/plugin/ExtensionBinder.java
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301
scm-webapp/src/main/java/sonia/scm/plugin/ExtensionBinder.java
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@@ -0,0 +1,301 @@
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/**
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* Copyright (c) 2010, Sebastian Sdorra
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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 without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of SCM-Manager; nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (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 CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* http://bitbucket.org/sdorra/scm-manager
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*
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*/
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package sonia.scm.plugin;
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//~--- non-JDK imports --------------------------------------------------------
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import com.google.common.collect.Iterables;
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import com.google.common.collect.Sets;
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import com.google.inject.Binder;
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import com.google.inject.Scopes;
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import com.google.inject.binder.AnnotatedBindingBuilder;
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import com.google.inject.binder.ScopedBindingBuilder;
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import com.google.inject.multibindings.Multibinder;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import sonia.scm.EagerSingleton;
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import sonia.scm.util.Util;
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//~--- JDK imports ------------------------------------------------------------
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import java.util.Set;
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import javax.ws.rs.ext.Provider;
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/**
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*
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* @author Sebastian Sdorra
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*/
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public final class ExtensionBinder
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{
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/**
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* the logger for ExtensionBinder
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*/
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private static final Logger logger =
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LoggerFactory.getLogger(ExtensionBinder.class);
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//~--- constructors ---------------------------------------------------------
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/**
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* Constructs ...
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*
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*
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* @param binder
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*/
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public ExtensionBinder(Binder binder)
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{
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this.binder = binder;
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}
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//~--- methods --------------------------------------------------------------
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/**
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* Method description
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*
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*
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* @param mutipleExtensionPoints
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* @param singleExtensionPoints
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* @param extensions
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*/
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public void bind(Set<Class> mutipleExtensionPoints,
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Set<Class> singleExtensionPoints, Set<Class> extensions)
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{
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if (logger.isInfoEnabled())
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{
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logger.info("bind {} extensions to {} extension points",
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extensions.size(),
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mutipleExtensionPoints.size() + singleExtensionPoints.size());
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}
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Set<Class> boundClasses = Sets.newHashSet();
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for (Class extensionPointClass : mutipleExtensionPoints)
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{
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bindMultiExtensionPoint(boundClasses, extensionPointClass, extensions);
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}
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for (Class extensionPointClass : singleExtensionPoints)
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{
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bindExtensionPoint(boundClasses, extensionPointClass, extensions);
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}
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Set<Class> extensionsCopy = Sets.newHashSet(extensions);
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Iterables.removeAll(extensionsCopy, boundClasses);
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for (Class extension : extensionsCopy)
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{
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AnnotatedBindingBuilder abb = binder.bind(extension);
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if (isProvider(extension))
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{
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logger.info("bind provider {} as singleton", extension);
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abb.in(Scopes.SINGLETON);
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}
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else if (isEagerSingleton(extension))
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{
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logger.info("bind {} as eager singleton, without extensionpoint",
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extension);
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abb.asEagerSingleton();
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}
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else
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{
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logger.info("bind {}, without extensionpoint", extension);
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binder.bind(extension);
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}
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}
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}
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/**
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* Method description
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*
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*
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*
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* @param found
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*
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* @param boundClasses
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* @param extensionPointClass
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* @param extensions
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*/
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@SuppressWarnings("unchecked")
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private void bindExtensionPoint(Set<Class> boundClasses,
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Class extensionPointClass, Set<Class> extensions)
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{
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boolean bound = false;
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for (Class extensionClass : extensions)
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{
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if (extensionPointClass.isAssignableFrom(extensionClass))
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{
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if (bound)
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{
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throw new IllegalStateException(
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"extension point ".concat(extensionPointClass.getName()).concat(
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" is not multiple and is already bound to another class"));
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}
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bindSingleInstance(extensionPointClass, extensionClass);
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boundClasses.add(extensionClass);
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bound = true;
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}
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}
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}
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/**
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* Method description
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*
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*
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*
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* @param found
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*
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* @param boundClasses
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* @param extensionPointClass
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* @param extensions
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*/
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@SuppressWarnings("unchecked")
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private void bindMultiExtensionPoint(Set<Class> boundClasses,
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Class extensionPointClass, Iterable<Class> extensions)
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{
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if (logger.isInfoEnabled())
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{
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logger.info("create multibinder for {}", extensionPointClass.getName());
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}
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Multibinder multibinder = Multibinder.newSetBinder(binder,
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extensionPointClass);
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for (Class extensionClass : extensions)
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{
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if (extensionPointClass.isAssignableFrom(extensionClass))
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{
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boolean eagerSingleton = isEagerSingleton(extensionClass);
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if (logger.isInfoEnabled())
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{
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String as = Util.EMPTY_STRING;
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if (eagerSingleton)
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{
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as = " as eager singleton";
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}
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logger.info("bind {} to multibinder of {}{}",
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extensionClass.getName(), extensionPointClass.getName(), as);
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}
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ScopedBindingBuilder sbb = multibinder.addBinding().to(extensionClass);
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if (eagerSingleton)
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{
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sbb.asEagerSingleton();
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logger.info("bind {} as eager singleton");
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}
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boundClasses.add(extensionClass);
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}
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}
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}
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/**
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* Method description
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*
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*
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* @param extensionPointClass
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* @param extensionClass
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*/
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@SuppressWarnings("unchecked")
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private void bindSingleInstance(Class extensionPointClass,
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Class extensionClass)
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{
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boolean eagerSingleton = isEagerSingleton(extensionClass);
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if (logger.isInfoEnabled())
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{
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String as = Util.EMPTY_STRING;
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if (eagerSingleton)
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{
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as = " as eager singleton";
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}
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logger.info("bind {} to {}{}", extensionClass.getName(),
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extensionPointClass.getName(), as);
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}
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ScopedBindingBuilder sbb =
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binder.bind(extensionPointClass).to(extensionClass);
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if (eagerSingleton)
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{
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sbb.asEagerSingleton();
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}
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}
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//~--- get methods ----------------------------------------------------------
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/**
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* Method description
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*
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*
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* @param extensionClass
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*
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* @return
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*/
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private boolean isEagerSingleton(Class extensionClass)
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{
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return extensionClass.isAnnotationPresent(EagerSingleton.class);
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}
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/**
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* Method description
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*
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*
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* @param extensionClass
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*
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* @return
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*/
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private boolean isProvider(Class extensionClass)
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{
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return extensionClass.isAnnotationPresent(Provider.class);
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}
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//~--- fields ---------------------------------------------------------------
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/** Field description */
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private final Binder binder;
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}
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