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package org.apache.hivemind.impl;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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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.hivemind.ApplicationRuntimeException;
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import org.apache.hivemind.ErrorHandler;
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import org.apache.hivemind.HiveMind;
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import org.apache.hivemind.HiveMindMessages;
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import org.apache.hivemind.Location;
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import org.apache.hivemind.Registry;
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import org.apache.hivemind.ShutdownCoordinator;
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import org.apache.hivemind.SymbolSource;
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import org.apache.hivemind.SymbolSourceContribution;
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import org.apache.hivemind.internal.ConfigurationPoint;
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import org.apache.hivemind.internal.RegistryInfrastructure;
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import org.apache.hivemind.internal.ServiceModelFactory;
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import org.apache.hivemind.internal.ServicePoint;
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import org.apache.hivemind.order.Orderer;
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import org.apache.hivemind.schema.Translator;
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import org.apache.hivemind.service.ThreadEventNotifier;
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import org.apache.hivemind.util.ToStringBuilder;
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public final class RegistryImpl implements Registry, RegistryInfrastructure
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{
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private static final String SYMBOL_SOURCES = "hivemind.SymbolSources";
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private static final Log LOG = LogFactory.getLog(RegistryImpl.class);
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private Map _servicePoints = new HashMap();
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private Map _servicePointsByInterface = new HashMap();
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private Map _configurationPoints = new HashMap();
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private SymbolSource[] _variableSources;
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private ErrorHandler _errorHandler;
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private Locale _locale;
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private ShutdownCoordinator _shutdownCoordinator;
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private Map _serviceModelFactories;
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private boolean _started = false;
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private boolean _shutdown = false;
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private ThreadEventNotifier _threadEventNotifier;
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private TranslatorManager _translatorManager;
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private SymbolExpander _expander;
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public RegistryImpl(ErrorHandler errorHandler, Locale locale)
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{
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_errorHandler = errorHandler;
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_locale = locale;
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_translatorManager = new TranslatorManager(this, errorHandler);
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_expander = new SymbolExpander(_errorHandler, this);
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}
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public Locale getLocale()
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{
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return _locale;
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}
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public void addServicePoint(ServicePoint point)
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{
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checkStarted();
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_servicePoints.put(point.getExtensionPointId(), point);
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1544
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addServicePointByInterface(point);
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}
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private void addServicePointByInterface(ServicePoint point)
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{
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1544
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Class key = point.getServiceInterface();
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List l = (List) _servicePointsByInterface.get(key);
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if (l == null)
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{
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1017
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l = new LinkedList();
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1017
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_servicePointsByInterface.put(key, l);
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}
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1544
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l.add(point);
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}
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819
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public void addConfigurationPoint(ConfigurationPoint point)
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{
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819
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checkStarted();
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_configurationPoints.put(point.getExtensionPointId(), point);
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}
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2529
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public ServicePoint getServicePoint(String serviceId)
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{
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2529
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checkShutdown();
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2529
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ServicePoint result = (ServicePoint) _servicePoints.get(serviceId);
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if (result == null)
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0
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throw new ApplicationRuntimeException(ImplMessages.noSuchServicePoint(serviceId));
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2529
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return result;
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}
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2141
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public Object getService(String serviceId, Class serviceInterface)
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{
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2141
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ServicePoint point = getServicePoint(serviceId);
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return point.getService(serviceInterface);
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}
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public Object getService(Class serviceInterface)
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{
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List servicePoints = (List) _servicePointsByInterface.get(serviceInterface);
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if (servicePoints == null)
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1
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throw new ApplicationRuntimeException(
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ImplMessages.noServicePointForInterface(serviceInterface));
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if (servicePoints.size() > 1)
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1
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throw new ApplicationRuntimeException(
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ImplMessages.multipleServicePointsForInterface(serviceInterface, servicePoints));
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ServicePoint sp = (ServicePoint) servicePoints.get(0);
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return sp.getService(serviceInterface);
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}
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public ConfigurationPoint getConfigurationPoint(String configurationId)
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{
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checkShutdown();
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ConfigurationPoint result = (ConfigurationPoint) _configurationPoints.get(configurationId);
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if (result == null)
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1
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throw new ApplicationRuntimeException(
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ImplMessages.noSuchConfiguration(configurationId));
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526
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return result;
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}
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public List getConfiguration(String configurationId)
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{
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527
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ConfigurationPoint point = getConfigurationPoint(configurationId);
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525
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return point.getElements();
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}
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4
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public String toString()
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{
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4
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ToStringBuilder builder = new ToStringBuilder(this);
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4
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builder.append("locale", _locale);
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return builder.toString();
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}
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200
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public String expandSymbols(String text, Location location)
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{
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return _expander.expandSymbols(text, location);
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}
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205
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public String valueForSymbol(String name)
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{
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checkShutdown();
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209
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5
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SymbolSource[] sources = getSymbolSources();
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211
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5
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for (int i = 0; i < sources.length; i++)
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{
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7
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String value = sources[i].valueForSymbol(name);
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215
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7
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if (value != null)
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4
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return value;
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}
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1
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return null;
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}
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222
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5
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private synchronized SymbolSource[] getSymbolSources()
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{
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5
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if (_variableSources != null)
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2
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return _variableSources;
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227
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3
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List contributions = getConfiguration(SYMBOL_SOURCES);
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229
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3
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Orderer o =
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new Orderer(
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LogFactory.getLog(SYMBOL_SOURCES),
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_errorHandler,
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ImplMessages.symbolSourceContribution());
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235
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3
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Iterator i = contributions.iterator();
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3
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while (i.hasNext())
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{
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238
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8
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SymbolSourceContribution c = (SymbolSourceContribution) i.next();
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239
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240
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8
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o.add(c, c.getName(), c.getPrecedingNames(), c.getFollowingNames());
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}
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242
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243
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3
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List sources = o.getOrderedObjects();
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244
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245
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3
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int count = sources.size();
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247
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3
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_variableSources = new SymbolSource[count];
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248
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249
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3
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for (int j = 0; j < count; j++)
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250
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{
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251
|
8
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SymbolSourceContribution c = (SymbolSourceContribution) sources.get(j);
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252
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8
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_variableSources[j] = c.getSource();
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253
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}
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254
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255
|
3
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return _variableSources;
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256
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}
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257
|
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|
258
|
96
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public void setShutdownCoordinator(ShutdownCoordinator coordinator)
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259
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{
|
260
|
96
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_shutdownCoordinator = coordinator;
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261
|
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}
|
262
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263
|
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|
264
|
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|
265
|
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|
266
|
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|
267
|
19
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public synchronized void shutdown()
|
268
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{
|
269
|
19
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checkShutdown();
|
270
|
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|
271
|
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272
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18
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ShutdownCoordinator coordinatorService =
|
273
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(ShutdownCoordinator) getService("hivemind.ShutdownCoordinator",
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274
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ShutdownCoordinator.class);
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275
|
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|
276
|
18
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coordinatorService.shutdown();
|
277
|
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|
278
|
18
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_shutdown = true;
|
279
|
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|
280
|
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281
|
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|
282
|
18
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_shutdownCoordinator.shutdown();
|
283
|
|
|
284
|
18
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_servicePoints = null;
|
285
|
18
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_servicePointsByInterface = null;
|
286
|
18
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_configurationPoints = null;
|
287
|
18
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_shutdownCoordinator = null;
|
288
|
18
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_variableSources = null;
|
289
|
18
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_serviceModelFactories = null;
|
290
|
18
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_threadEventNotifier = null;
|
291
|
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}
|
292
|
|
|
293
|
3088
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private synchronized void checkShutdown()
|
294
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{
|
295
|
3088
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if (_shutdown)
|
296
|
2
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throw new ApplicationRuntimeException(HiveMindMessages.registryShutdown());
|
297
|
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}
|
298
|
|
|
299
|
2459
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private void checkStarted()
|
300
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{
|
301
|
2459
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if (_started)
|
302
|
0
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throw new IllegalStateException(ImplMessages.registryAlreadyStarted());
|
303
|
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}
|
304
|
|
|
305
|
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|
306
|
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|
307
|
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|
308
|
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309
|
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310
|
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|
311
|
|
|
312
|
|
|
313
|
|
|
314
|
|
|
315
|
96
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public void startup()
|
316
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{
|
317
|
96
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checkStarted();
|
318
|
|
|
319
|
96
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_started = true;
|
320
|
|
|
321
|
96
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Runnable startup = (Runnable) getService("hivemind.Startup", Runnable.class);
|
322
|
|
|
323
|
96
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startup.run();
|
324
|
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}
|
325
|
|
|
326
|
981
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public synchronized ServiceModelFactory getServiceModelFactory(String name)
|
327
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{
|
328
|
981
|
if (_serviceModelFactories == null)
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329
|
96
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readServiceModelFactories();
|
330
|
|
|
331
|
981
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ServiceModelFactory result = (ServiceModelFactory) _serviceModelFactories.get(name);
|
332
|
|
|
333
|
981
|
if (result == null)
|
334
|
0
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throw new ApplicationRuntimeException(ImplMessages.unknownServiceModel(name));
|
335
|
|
|
336
|
981
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return result;
|
337
|
|
}
|
338
|
|
|
339
|
96
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private void readServiceModelFactories()
|
340
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|
{
|
341
|
96
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List l = getConfiguration("hivemind.ServiceModels");
|
342
|
|
|
343
|
96
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_serviceModelFactories = new HashMap();
|
344
|
|
|
345
|
96
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Iterator i = l.iterator();
|
346
|
|
|
347
|
96
|
while (i.hasNext())
|
348
|
|
{
|
349
|
384
|
ServiceModelContribution smc = (ServiceModelContribution) i.next();
|
350
|
|
|
351
|
384
|
String name = smc.getName();
|
352
|
|
|
353
|
384
|
ServiceModelFactory old = (ServiceModelFactory) _serviceModelFactories.get(name);
|
354
|
|
|
355
|
384
|
if (old != null)
|
356
|
|
{
|
357
|
0
|
_errorHandler.error(
|
358
|
|
LOG,
|
359
|
|
ImplMessages.dupeServiceModelName(name, HiveMind.getLocation(old)),
|
360
|
|
HiveMind.getLocation(smc),
|
361
|
|
null);
|
362
|
|
|
363
|
0
|
continue;
|
364
|
|
}
|
365
|
|
|
366
|
384
|
_serviceModelFactories.put(name, smc.getFactory());
|
367
|
|
}
|
368
|
|
}
|
369
|
|
|
370
|
802
|
public synchronized void cleanupThread()
|
371
|
|
{
|
372
|
802
|
if (_threadEventNotifier == null)
|
373
|
6
|
_threadEventNotifier =
|
374
|
|
(ThreadEventNotifier) getService("hivemind.ThreadEventNotifier",
|
375
|
|
ThreadEventNotifier.class);
|
376
|
|
|
377
|
802
|
_threadEventNotifier.fireThreadCleanup();
|
378
|
|
}
|
379
|
|
|
380
|
2
|
public boolean containsConfiguration(String configurationId)
|
381
|
|
{
|
382
|
2
|
checkShutdown();
|
383
|
|
|
384
|
2
|
return _configurationPoints.containsKey(configurationId);
|
385
|
|
}
|
386
|
|
|
387
|
2
|
public boolean containsService(Class serviceInterface)
|
388
|
|
{
|
389
|
2
|
checkShutdown();
|
390
|
|
|
391
|
2
|
List servicePoints = (List) _servicePointsByInterface.get(serviceInterface);
|
392
|
|
|
393
|
2
|
return size(servicePoints) == 1;
|
394
|
|
}
|
395
|
|
|
396
|
3
|
public boolean containsService(String serviceId, Class serviceInterface)
|
397
|
|
{
|
398
|
3
|
checkShutdown();
|
399
|
|
|
400
|
3
|
ServicePoint point = (ServicePoint) _servicePoints.get(serviceId);
|
401
|
|
|
402
|
3
|
if (point == null)
|
403
|
1
|
return false;
|
404
|
|
|
405
|
2
|
return point.getServiceInterface().equals(serviceInterface);
|
406
|
|
}
|
407
|
|
|
408
|
0
|
public void setLocale(Locale locale)
|
409
|
|
{
|
410
|
0
|
_locale = locale;
|
411
|
|
}
|
412
|
|
|
413
|
936
|
public ErrorHandler getErrorHander()
|
414
|
|
{
|
415
|
936
|
return _errorHandler;
|
416
|
|
}
|
417
|
|
|
418
|
5375
|
public Translator getTranslator(String translator)
|
419
|
|
{
|
420
|
5375
|
return _translatorManager.getTranslator(translator);
|
421
|
|
}
|
422
|
|
|
423
|
2
|
private int size(Collection c)
|
424
|
|
{
|
425
|
2
|
return c == null ? 0 : c.size();
|
426
|
|
}
|
427
|
|
|
428
|
|
}
|
429
|
|
|