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package org.apache.turbine.services.avaloncomponent; |
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import java.util.ArrayList; |
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import java.util.Iterator; |
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import java.util.List; |
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import org.apache.avalon.excalibur.component.DefaultRoleManager; |
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import org.apache.avalon.excalibur.component.ExcaliburComponentManager; |
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import org.apache.avalon.excalibur.logger.Log4JLoggerManager; |
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import org.apache.avalon.excalibur.logger.LoggerManager; |
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import org.apache.avalon.framework.activity.Disposable; |
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import org.apache.avalon.framework.activity.Initializable; |
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import org.apache.avalon.framework.component.Component; |
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import org.apache.avalon.framework.component.ComponentException; |
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import org.apache.avalon.framework.configuration.Configuration; |
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import org.apache.avalon.framework.configuration.DefaultConfigurationBuilder; |
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import org.apache.avalon.framework.context.DefaultContext; |
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import org.apache.avalon.framework.logger.Logger; |
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import org.apache.avalon.framework.service.ServiceException; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import org.apache.turbine.Turbine; |
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import org.apache.turbine.services.InitializationException; |
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import org.apache.turbine.services.InstantiationException; |
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import org.apache.turbine.services.TurbineBaseService; |
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75 | 0 | public class TurbineAvalonComponentService |
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extends TurbineBaseService |
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implements AvalonComponentService, Initializable, Disposable |
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{ |
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80 | 0 | private static Log log = LogFactory.getLog( |
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TurbineAvalonComponentService.class); |
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84 | 0 | private ExcaliburComponentManager manager = null; |
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public void init() |
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throws InitializationException |
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{ |
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try |
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{ |
103 | 0 | initialize(); |
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105 | 0 | setInit(true); |
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} |
107 | 0 | catch (Exception e) |
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{ |
109 | 0 | throw new InitializationException("init failed", e); |
110 | 0 | } |
111 | 0 | } |
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public void shutdown() |
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{ |
120 | 0 | dispose(); |
121 | 0 | setInit(false); |
122 | 0 | } |
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public void initialize() throws Exception |
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{ |
135 | 0 | org.apache.commons.configuration.Configuration conf |
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= getConfiguration(); |
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139 | 0 | String sysConfigFilename = Turbine.getRealPath( |
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conf.getString(COMPONENT_CONFIG_KEY, COMPONENT_CONFIG_VALUE)); |
141 | 0 | String roleConfigFilename = Turbine.getRealPath( |
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conf.getString(COMPONENT_ROLE_KEY, COMPONENT_ROLE_VALUE)); |
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144 | 0 | log.debug("Config File: " + sysConfigFilename); |
145 | 0 | log.debug("Role File: " + roleConfigFilename); |
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149 | 0 | DefaultConfigurationBuilder builder = new DefaultConfigurationBuilder(); |
150 | 0 | Configuration sysConfig = builder.buildFromFile(sysConfigFilename); |
151 | 0 | Configuration roleConfig = builder.buildFromFile(roleConfigFilename); |
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154 | 0 | LoggerManager lm = new Log4JLoggerManager(); |
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157 | 0 | DefaultRoleManager roles = new DefaultRoleManager(); |
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159 | 0 | Logger logger = lm.getLoggerForCategory(AVALON_LOG_CATEGORY); |
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161 | 0 | roles.enableLogging(logger); |
162 | 0 | roles.configure(roleConfig); |
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165 | 0 | manager = new ExcaliburComponentManager(); |
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167 | 0 | manager.setLoggerManager(lm); |
168 | 0 | manager.enableLogging(logger); |
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170 | 0 | DefaultContext context = new DefaultContext(); |
171 | 0 | String realPath = Turbine.getRealPath("/"); |
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173 | 0 | context.put(AvalonComponentService.COMPONENT_APP_ROOT, realPath); |
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176 | 0 | context.put("urn:avalon:home", realPath); |
177 | 0 | System.setProperty("applicationRoot", realPath); |
178 | 0 | System.setProperty("urn:avalon:home", realPath); |
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180 | 0 | log.debug("Application Root is " + realPath); |
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182 | 0 | manager.contextualize(context); |
183 | 0 | manager.setRoleManager(roles); |
184 | 0 | manager.configure(sysConfig); |
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187 | 0 | manager.initialize(); |
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189 | 0 | List lookupComponents = conf.getList(COMPONENT_LOOKUP_KEY, |
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new ArrayList()); |
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192 | 0 | for (Iterator it = lookupComponents.iterator(); it.hasNext();) |
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{ |
194 | 0 | String component = (String) it.next(); |
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try |
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{ |
197 | 0 | Component c = manager.lookup(component); |
198 | 0 | log.info("Lookup for Component " + component + " successful"); |
199 | 0 | manager.release(c); |
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} |
201 | 0 | catch (Exception e) |
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{ |
203 | 0 | log.error("Lookup for Component " + component + " failed!"); |
204 | 0 | } |
205 | 0 | } |
206 | 0 | } |
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public void dispose() |
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{ |
213 | 0 | manager.dispose(); |
214 | 0 | } |
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public Object lookup(String roleName) |
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throws ServiceException |
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{ |
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try |
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{ |
228 | 0 | return manager.lookup(roleName); |
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} |
230 | 0 | catch (ComponentException e) |
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{ |
232 | 0 | throw new ServiceException(name, e.getMessage()); |
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} |
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} |
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public void release(Object component) |
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{ |
243 | 0 | if( component instanceof Component ) |
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{ |
245 | 0 | manager.release((Component)component); |
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} |
247 | 0 | } |
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public boolean hasService(String roleName) |
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{ |
254 | 0 | return manager.hasComponent(roleName); |
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} |
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public boolean exists(String roleName) |
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{ |
266 | 0 | return this.hasService(roleName); |
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} |
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public Object get(String roleName) throws InstantiationException |
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{ |
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try |
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{ |
276 | 0 | return this.lookup(roleName); |
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} |
278 | 0 | catch (ServiceException e) |
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{ |
280 | 0 | String msg = "Unable to get the following service : " + roleName; |
281 | 0 | log.error(msg); |
282 | 0 | throw new InstantiationException(msg); |
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} |
284 | 0 | catch (Throwable t) |
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{ |
286 | 0 | String msg = "Unable to get the following service : " + roleName; |
287 | 0 | log.error(msg,t); |
288 | 0 | throw new InstantiationException(msg,t); |
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} |
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} |
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} |