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package org.seasar.cubby.internal.plugin; |
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import static org.seasar.cubby.internal.util.LogMessages.format; |
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import java.util.Collection; |
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import java.util.HashSet; |
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import java.util.Set; |
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import javax.servlet.ServletContext; |
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import org.seasar.cubby.internal.util.ServiceLoader; |
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import org.seasar.cubby.plugin.Plugin; |
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import org.seasar.cubby.plugin.PluginRegistry; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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public class PluginManager { |
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40 | 1 | private static final Logger logger = LoggerFactory |
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.getLogger(PluginManager.class); |
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private final PluginRegistry pluginRegistry; |
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52 | 1 | public PluginManager(final PluginRegistry pluginRegistry) { |
53 | 1 | this.pluginRegistry = pluginRegistry; |
54 | 1 | } |
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public void init(final ServletContext servletContext) throws Exception { |
65 | 1 | final Collection<Plugin> plugins = loadPlugins(); |
66 | 1 | initializePlugins(servletContext, plugins); |
67 | 1 | registerPlugins(pluginRegistry, plugins); |
68 | 1 | readyPlugins(plugins); |
69 | 1 | } |
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public void destroy() { |
75 | 1 | final Set<? extends Plugin> plugins = pluginRegistry.getPlugins(); |
76 | 1 | destroyPlugins(plugins); |
77 | 1 | pluginRegistry.clear(); |
78 | 1 | } |
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protected Collection<Plugin> loadPlugins() { |
86 | 0 | final Set<Plugin> plugins = new HashSet<Plugin>(); |
87 | 0 | for (final Plugin plugin : ServiceLoader.load(Plugin.class)) { |
88 | 0 | plugins.add(plugin); |
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} |
90 | 0 | return plugins; |
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} |
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protected void initializePlugins(final ServletContext servletContext, |
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final Collection<Plugin> plugins) throws Exception { |
105 | 1 | for (final Plugin plugin : plugins) { |
106 | 1 | if (logger.isDebugEnabled()) { |
107 | 1 | logger.debug(format("DCUB0019", plugin)); |
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} |
109 | 1 | plugin.initialize(servletContext); |
110 | 1 | if (logger.isInfoEnabled()) { |
111 | 1 | logger.info(format("ICUB0002", plugin)); |
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} |
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} |
114 | 1 | } |
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protected void registerPlugins(final PluginRegistry pluginRegistry, |
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final Collection<Plugin> plugins) { |
126 | 1 | for (final Plugin plugin : plugins) { |
127 | 1 | if (logger.isDebugEnabled()) { |
128 | 1 | logger.debug(format("DCUB0020", plugin)); |
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} |
130 | 1 | pluginRegistry.register(plugin); |
131 | 1 | if (logger.isInfoEnabled()) { |
132 | 1 | logger.info(format("ICUB0003", plugin)); |
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} |
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} |
135 | 1 | } |
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private void readyPlugins(final Collection<Plugin> plugins) |
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throws Exception { |
147 | 1 | for (final Plugin plugin : plugins) { |
148 | 1 | if (logger.isDebugEnabled()) { |
149 | 1 | logger.debug(format("DCUB0021", plugin)); |
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} |
151 | 1 | plugin.ready(); |
152 | 1 | if (logger.isInfoEnabled()) { |
153 | 1 | logger.info(format("ICUB0004", plugin)); |
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} |
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} |
156 | 1 | } |
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protected void destroyPlugins(final Set<? extends Plugin> plugins) { |
165 | 1 | for (final Plugin plugin : plugins) { |
166 | 1 | if (logger.isDebugEnabled()) { |
167 | 1 | logger.debug(format("DCUB0022", plugin)); |
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} |
169 | 1 | plugin.destroy(); |
170 | 1 | if (logger.isInfoEnabled()) { |
171 | 1 | logger.info(format("ICUB0005", plugin)); |
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} |
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} |
174 | 1 | } |
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} |