| 1 | package de.uka.ipd.sdq.sensorframework; |
| 2 | |
| 3 | |
| 4 | import java.io.DataInputStream; |
| 5 | import java.io.DataOutputStream; |
| 6 | import java.io.File; |
| 7 | import java.io.FileInputStream; |
| 8 | import java.io.FileOutputStream; |
| 9 | import java.util.Collection; |
| 10 | |
| 11 | import org.eclipse.core.runtime.IConfigurationElement; |
| 12 | import org.eclipse.core.runtime.IExtensionRegistry; |
| 13 | import org.eclipse.core.runtime.IStatus; |
| 14 | import org.eclipse.core.runtime.Platform; |
| 15 | import org.eclipse.core.runtime.Plugin; |
| 16 | import org.eclipse.core.runtime.Status; |
| 17 | import org.osgi.framework.BundleContext; |
| 18 | |
| 19 | import de.uka.ipd.sdq.sensorframework.adapter.AdapterRegistry; |
| 20 | import de.uka.ipd.sdq.sensorframework.adapter.IAdapterFactory; |
| 21 | import de.uka.ipd.sdq.sensorframework.dao.memory.MemoryDAOFactory; |
| 22 | import de.uka.ipd.sdq.sensorframework.entities.dao.IDAOFactory; |
| 23 | import de.uka.ipd.sdq.sensorframework.filter.FilteredCollectionRegistry; |
| 24 | import de.uka.ipd.sdq.sensorframework.filter.IFilteredCollectionFactory; |
| 25 | |
| 26 | /** |
| 27 | * The activator class controls the plug-in life cycle |
| 28 | * @author Roman Andrej |
| 29 | * @author Steffen Becker |
| 30 | |
| 31 | */ |
| 32 | public class SensorFrameworkPluginActivator extends Plugin { |
| 33 | |
| 34 | /** The plug-in ID. */ |
| 35 | public static final String PLUGIN_ID = "de.uka.ipd.sdq.sensorframework"; |
| 36 | |
| 37 | /** EPID - Filter extension Point ID. */ |
| 38 | private static final String ADAPTER_EPID = "de.uka.ipd.sdq.sensorframework.adapter"; |
| 39 | |
| 40 | /** EPID - Filter extension Point ID. */ |
| 41 | private static final String FILTER_EPID = "de.uka.ipd.sdq.sensorframework.filter"; |
| 42 | |
| 43 | /** The shared instance. */ |
| 44 | private static SensorFrameworkPluginActivator plugin; |
| 45 | |
| 46 | /** The constructor. */ |
| 47 | public SensorFrameworkPluginActivator() { |
| 48 | } |
| 49 | |
| 50 | /* (non-Javadoc) |
| 51 | * @see org.eclipse.core.runtime.Plugins#start(org.osgi.framework.BundleContext) |
| 52 | */ |
| 53 | @Override |
| 54 | public void start(BundleContext context) throws Exception { |
| 55 | super.start(context); |
| 56 | plugin = this; |
| 57 | IExtensionRegistry registry = Platform.getExtensionRegistry(); |
| 58 | |
| 59 | for (IConfigurationElement configurationElement : registry |
| 60 | .getConfigurationElementsFor(ADAPTER_EPID)) { |
| 61 | |
| 62 | IAdapterFactory factory = (IAdapterFactory) configurationElement |
| 63 | .createExecutableExtension("class"); |
| 64 | AdapterRegistry.singleton().addAdapterFactory(factory); |
| 65 | } |
| 66 | |
| 67 | for (IConfigurationElement configurationElement : registry |
| 68 | .getConfigurationElementsFor(FILTER_EPID)) { |
| 69 | |
| 70 | IFilteredCollectionFactory factory = (IFilteredCollectionFactory) configurationElement |
| 71 | .createExecutableExtension("class"); |
| 72 | String filterName = configurationElement |
| 73 | .getAttribute("displayName"); |
| 74 | FilteredCollectionRegistry.singleton().addFilteredCollectionFactory(filterName, factory); |
| 75 | } |
| 76 | |
| 77 | try { |
| 78 | File file = context.getDataFile(PLUGIN_ID); |
| 79 | FileInputStream fis = new FileInputStream(file); |
| 80 | DataInputStream dos = new DataInputStream(fis); |
| 81 | while (fis.available() > 0) { |
| 82 | long id = dos.readLong(); |
| 83 | String className = dos.readUTF(); |
| 84 | String config = dos.readUTF(); |
| 85 | |
| 86 | IDAOFactory factory = (IDAOFactory) Class.forName(className) |
| 87 | .getConstructor(String.class).newInstance(config); |
| 88 | factory.setID((int) id); |
| 89 | SensorFrameworkDataset.singleton().addDataSource(factory); |
| 90 | } |
| 91 | } catch (Exception e) { |
| 92 | log(IStatus.ERROR, "Restoring Dataset Configuration failed. Resetting configuration...", e); |
| 93 | if (SensorFrameworkDataset.singleton().getDataSources().size() == 0) |
| 94 | SensorFrameworkDataset.singleton().addDataSource( |
| 95 | new MemoryDAOFactory(0)); |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | /* (non-Javadoc) |
| 100 | * @see org.eclipse.core.runtime.Plugin#stop(org.osgi.framework.BundleContext) |
| 101 | */ |
| 102 | @Override |
| 103 | public void stop(BundleContext context) throws Exception { |
| 104 | plugin = null; |
| 105 | File f = context.getDataFile("de.uka.ipd.sdq.sensorframework"); |
| 106 | try { |
| 107 | f.delete(); |
| 108 | DataOutputStream dos = new DataOutputStream(new FileOutputStream(f)); |
| 109 | Collection<IDAOFactory> sources = SensorFrameworkDataset.singleton().getDataSources(); |
| 110 | for (IDAOFactory source : sources) { |
| 111 | try { |
| 112 | source.finalizeAndClose(); |
| 113 | } catch (Exception e) { |
| 114 | log(IStatus.ERROR, "Failed to close datasource with ID "+source.getID(),e); |
| 115 | } |
| 116 | dos.writeLong(source.getID()); |
| 117 | dos.writeUTF(source.getClass().getName()); |
| 118 | dos.writeUTF(source.getPersistendInfo()); |
| 119 | } |
| 120 | dos.close(); |
| 121 | } catch (Exception e) { |
| 122 | log(IStatus.ERROR, "Saving Dataset Configuration failed.",e); |
| 123 | f.deleteOnExit(); |
| 124 | } |
| 125 | super.stop(context); |
| 126 | } |
| 127 | |
| 128 | /** |
| 129 | * Returns the shared instance |
| 130 | * |
| 131 | * @return the shared instance |
| 132 | */ |
| 133 | public static SensorFrameworkPluginActivator getDefault() { |
| 134 | return plugin; |
| 135 | } |
| 136 | |
| 137 | public static void log(int severity, String message, Throwable t) { |
| 138 | if (plugin != null) { |
| 139 | plugin.getLog().log(new Status(severity,PLUGIN_ID,message,t)); |
| 140 | } |
| 141 | } |
| 142 | } |