Examples of PersistentService

org.apache.derby.iapi.services.monitor.PersistentService
A PersistentService modularises the access to persistent services, abstracting out details such as finding the list of services to be started at boot time, finding the service.properties file and creating and deleting the persistent storage for a service.
These modules must only be used by the monitor.
Possible examples of implementations are:
- Store services in a directory in the file system.
- Store services in a zip file
- Service data is provided by a web server
- Service data is stored on the class path.
This class also serves as the registry the defined name for all the implementations of PersistentService. These need to be kept track of as they can be used in JDBC URLS.
An implementation of PersistentService can implement ModuleSupportable but must not implement ModuleControl. This is because the monitor will not execute ModuleControl methods for a PersistentService.

Examples of org.apache.derby.iapi.services.monitor.PersistentService


    UUIDFactory uf = Monitor.getMonitor().getUUIDFactory();


    identifier = uf.createUUID();


        PersistentService ps = Monitor.getMonitor().getServiceType(this);


        try
        {
            storageFactory =
            ps.getStorageFactoryInstance(
                true,
                dataDirectory,
                startParams.getProperty(
                    Property.STORAGE_TEMP_DIRECTORY,
                    PropertyUtil.getSystemProperty(

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Examples of org.apache.derby.iapi.services.monitor.PersistentService

  private boolean handleServiceType(
    String      type) 
    {
        try
        {
            PersistentService ps = 
                Monitor.getMonitor().getServiceProvider(type);
            return ps != null && ps.hasStorageFactory();
        }
        catch (StandardException se)
        { 
            return false;
        }

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Examples of org.apache.derby.iapi.services.monitor.PersistentService

            StorageFile logdir = logFactory.getLogDirectory();
            
            try 
            {
                String name = Monitor.getMonitor().getServiceName(this);
                PersistentService ps = 
                    Monitor.getMonitor().getServiceType(this);
                String fullName = ps.getCanonicalServiceName(name);
                Properties prop = 
                    ps.getServiceProperties(fullName, (Properties)null);


                StorageFile defaultLogDir = 
                    storageFactory.newStorageFile(
                        LogFactory.LOG_DIRECTORY_NAME);


                if (!logdir.equals(defaultLogDir))  
                {
                    prop.remove(Attribute.LOG_DEVICE);
                    if (SanityManager.DEBUG)
                    {
                        SanityManager.ASSERT(
                            prop.getProperty(Attribute.LOG_DEVICE) == null,
                            "cannot get rid of logDevice property");
                    }


                    logHistory(historyFile,
                               MessageService.getTextMessage(
                               MessageId.STORE_EDITED_SERVICEPROPS));
                }
            
                // save the service properties into the backup.
                ps.saveServiceProperties(backupcopy.getPath(), prop, false);


            }
            catch(StandardException se) 
            {
                logHistory(

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Examples of org.apache.derby.iapi.services.monitor.PersistentService

                // service properties to indicate that database
                // is encrypted and also users can specify it as URL attribute 
                // to encrypt and existing database. 
                               
                String name = Monitor.getMonitor().getServiceName(this);
                PersistentService ps = Monitor.getMonitor().getServiceType(this);
                String canonicalName = ps.getCanonicalServiceName(name);
                Properties serviceprops = ps.getServiceProperties(canonicalName, 
                                                                  (Properties)null);
                dataEncryption = serviceprops.getProperty(Attribute.DATA_ENCRYPTION);
                boolean encryptedDatabase = Boolean.valueOf(dataEncryption).booleanValue();


                if (!encryptedDatabase  && databaseEncrypted) {

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Examples of org.apache.derby.iapi.services.monitor.PersistentService

        }
        else
        {
            try
            {
                PersistentService ps = Monitor.getMonitor().getServiceType(this);
                logStorageFactory = (WritableStorageFactory) ps.getStorageFactoryInstance( false, logDevice, null, null);
            }
            catch( IOException ioe)
            {
                if( SanityManager.DEBUG)
                    SanityManager.NOTREACHED();

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Examples of org.apache.derby.iapi.services.monitor.PersistentService

    TopService ts = findTopService(serviceModule);


    if (ts == null)
      return null;


    PersistentService provider = ts.getServiceType();
    if (provider == null)
      return null;


    String serviceName = ts.getKey().getIdentifier();


    Properties properties = provider.getServiceProperties(serviceName, (Properties) null);


    properties = new UpdateServiceProperties(provider, serviceName, properties, true);


    return setLocale(properties, userDefinedLocale);

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Examples of org.apache.derby.iapi.services.monitor.PersistentService


  public Object createPersistentService(String factoryInterface, String name, Properties properties)
    throws StandardException {




    PersistentService provider = findProviderForCreate(name);
    if (provider == null) {
      throw StandardException.newException(SQLState.PROTOCOL_UNKNOWN, name);
    }


    return bootService(provider, factoryInterface, name, properties, true);

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Examples of org.apache.derby.iapi.services.monitor.PersistentService

       
    */
    public void removePersistentService(String name)
         throws StandardException 
    {
        PersistentService provider=null;
    provider = findProviderForCreate(name);
        String serviceName = provider.getCanonicalServiceName(name);
        boolean removed = provider.removeServiceRoot(serviceName);
        if (removed == false)
      throw StandardException.newException(SQLState.SERVICE_DIRECTORY_REMOVE_ERROR,serviceName);
    }

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Examples of org.apache.derby.iapi.services.monitor.PersistentService

    private boolean getPersistentServiceImplementation( Class possibleModule)
    {
        if( ! PersistentService.class.isAssignableFrom(possibleModule))
            return false;


        PersistentService ps = (PersistentService) newInstance(possibleModule);
        if (ps == null) {
            report("Class " + possibleModule.getName() + " cannot create instance, module ignored.");
        } else {
            serviceProviders.put(ps.getType(), ps);
        }
        return true;
    } // end of getPersistentServiceImplementation

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Examples of org.apache.derby.iapi.services.monitor.PersistentService

    to boot all the services that that provider knows about.
  */
  private void bootPersistentServices() {
    Enumeration e = new ProviderEnumeration( applicationProperties);
    while (e.hasMoreElements()) {
      PersistentService provider = (PersistentService) e.nextElement();
      bootProviderServices(provider);
    }


  }

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