Java Code Examples for org.osgi.framework.Constants#SERVICE_ID

@Override
 public Object get(Object key) {
   if (key == Constants.OBJECTCLASS) {
     return (ocIndex >= 0) ? values[ocIndex] : null;
   } else if (key == Constants.SERVICE_ID) {
     return (sidIndex >= 0) ? values[sidIndex] : null;
   } else if (key == Constants.SERVICE_BUNDLEID) {
     return (sidIndex >= 0) ? values[sbidIndex] : null;
   } else if (key == Constants.SERVICE_SCOPE) {
     return (sidIndex >= 0) ? values[ssIndex] : null;
   }
   for (int i = size - 1; i >= 0; i--) {
     if (((String)key).equalsIgnoreCase(keys[i])) {
return values[i];
     }
   }
   return null;
 }
 

PropertiesDictionary(@SuppressWarnings("rawtypes") Dictionary in,
                     String[] classes, Long sid, Long bid, String scope)
{
  final int max_size = (in != null ? in.size() : 0) + size;
  keys = new String[max_size];
  values = new Object[max_size];
  keys[ocIndex] = Constants.OBJECTCLASS;
  values[ocIndex] = classes;
  keys[sidIndex] = Constants.SERVICE_ID;
  values[sidIndex] = sid != null ? sid : new Long(nextServiceID++);
  keys[sbidIndex] = Constants.SERVICE_BUNDLEID;
  values[sbidIndex] = bid;
  keys[ssIndex] = Constants.SERVICE_SCOPE;
  values[ssIndex] = scope;
  if (in != null) {
    try {
      for (@SuppressWarnings("rawtypes")
      final Enumeration e = in.keys(); e.hasMoreElements();) {
        final String key = (String) e.nextElement();
        if (!key.equalsIgnoreCase(Constants.OBJECTCLASS) &&
            !key.equalsIgnoreCase(Constants.SERVICE_ID) &&
            !key.equalsIgnoreCase(Constants.SERVICE_BUNDLEID) &&
            !key.equalsIgnoreCase(Constants.SERVICE_SCOPE)) {
          for (int i = size - 1; i >= 0; i--) {
            if (key.equalsIgnoreCase(keys[i])) {
              throw new IllegalArgumentException(
                                                 "Several entries for property: "
                                                     + key);
            }
          }
          keys[size] = key;
          values[size++] = in.get(key);
        }
      }
    } catch (final ClassCastException ignore) {
      throw new IllegalArgumentException(
                                         "Properties contains key that is not of type java.lang.String");
    }
  }
}
 

ServiceReferenceImpl(Bundle bundle, Object obj, Dictionary<String, ?> dictionary, String[] strArr) {
    this.useCounters = new HashMap(0);
    this.cachedServices = null;
    if (obj instanceof ServiceFactory) {
        this.isServiceFactory = true;
    } else {
        this.isServiceFactory = false;
        checkService(obj, strArr);
    }
    this.bundle = bundle;
    this.service = obj;
    this.properties = dictionary == null ? new Hashtable() : new Hashtable(dictionary.size());
    if (dictionary != null) {
        Enumeration keys = dictionary.keys();
        while (keys.hasMoreElements()) {
            String str = (String) keys.nextElement();
            this.properties.put(str, dictionary.get(str));
        }
    }
    this.properties.put(Constants.OBJECTCLASS, strArr);
    Dictionary dictionary2 = this.properties;
    String str2 = Constants.SERVICE_ID;
    long j = nextServiceID + 1;
    nextServiceID = j;
    dictionary2.put(str2, Long.valueOf(j));
    Integer num = dictionary == null ? null : (Integer) dictionary.get(Constants.SERVICE_RANKING);
    this.properties.put(Constants.SERVICE_RANKING, Integer.valueOf(num == null ? 0 : num.intValue()));
    this.registration = new ServiceRegistrationImpl();
}
 

/**
 * Create a {@code ServiceTracker} on the specified {@code ServiceReference}
 * .
 * 
 * <p>
 * The service referenced by the specified {@code ServiceReference} will be
 * tracked by this {@code ServiceTracker}.
 * 
 * @param context The {@code BundleContext} against which the tracking is
 *        done.
 * @param reference The {@code ServiceReference} for the service to be
 *        tracked.
 * @param customizer The customizer object to call when services are added,
 *        modified, or removed in this {@code ServiceTracker}. If customizer
 *        is {@code null}, then this {@code ServiceTracker} will be used as
 *        the {@code ServiceTrackerCustomizer} and this
 *        {@code ServiceTracker} will call the
 *        {@code ServiceTrackerCustomizer} methods on itself.
 */
public ServiceTracker(final BundleContext context, final ServiceReference<S> reference, final ServiceTrackerCustomizer<S, T> customizer) {
	this.context = context;
	this.trackReference = reference;
	this.trackClass = null;
	this.customizer = (customizer == null) ? this : customizer;
	this.listenerFilter = "(" + Constants.SERVICE_ID + "=" + reference.getProperty(Constants.SERVICE_ID).toString() + ")";
	try {
		this.filter = context.createFilter(listenerFilter);
	} catch (InvalidSyntaxException e) {
		/*
		 * we could only get this exception if the ServiceReference was
		 * invalid
		 */
		IllegalArgumentException iae = new IllegalArgumentException("unexpected InvalidSyntaxException: " + e.getMessage());
		iae.initCause(e);
		throw iae;
	}
}
 

void appendServiceHTML(final StringBuffer sb, final long sid)
{
  try {
    final String filter = "(" + Constants.SERVICE_ID + "=" + sid + ")";
    final ServiceReference<?>[] srl =
      Activator.getTargetBC_getServiceReferences(null, filter);
    if (srl != null && srl.length == 1) {
      sb.append("<html>");
      sb.append("<table border=0>");

      sb.append("<tr><td width=\"100%\" bgcolor=\"#eeeeee\">");
      JHTMLBundle.startFont(sb, "-1");
      sb.append("Service #" + sid);
      sb.append(", ");
      Util.bundleLink(sb, srl[0].getBundle());
      JHTMLBundle.stopFont(sb);
      sb.append("</td>\n");
      sb.append("</tr>\n");
      sb.append("</table>");

      JHTMLBundle.startFont(sb);
      sb.append("<b>Properties</b>");
      JHTMLBundle.stopFont(sb);
      sb.append("<table cellpadding=\"0\" cellspacing=\"1\" border=\"0\">");
      final String[] keys = srl[0].getPropertyKeys();
      for (int i = 0; keys != null && i < keys.length; i++) {

        final StringWriter sw = new StringWriter();
        final PrintWriter pr = new PrintWriter(sw);

        Util.printObject(pr, srl[0].getProperty(keys[i]));

        sb.append("<tr>");
        sb.append("<td valign=\"top\">");
        JHTMLBundle.startFont(sb);
        sb.append(keys[i]);
        JHTMLBundle.stopFont(sb);
        sb.append("</td>");

        sb.append("<td valign=\"top\">");
        sb.append(sw.toString());
        sb.append("</td>");

        sb.append("</tr>");
      }
      sb.append("</table>");

      try {
        formatServiceObject(sb, srl[0]);
      } catch (final Exception e) {
        sb.append("Failed to format service object: " + e);
        Activator.log
            .warn("Failed to format service object: " + e, srl[0], e);
      }

      sb.append("</html>");

    } else {
      sb.append("No service with sid=" + sid);
    }
  } catch (final Exception e2) {
    e2.printStackTrace();
  }
}
 

public void serviceChanged(ServiceEvent evt) {
  events.add(evt);
  out.println("ServiceEvent: " +toString(evt) );
  if (ServiceEvent.UNREGISTERING==evt.getType()) {
    ServiceReference sr = evt.getServiceReference();

    // Validate that no bundle is marked as using the service
    Bundle[] usingBundles = sr.getUsingBundles();
    if (checkUsingBundles && null!=usingBundles) {
      teststatus = false;
      printUsingBundles(sr, "*** Using bundles (unreg) should be null "
                        +"but is: ");
    }

    // Check if the service can be fetched
    Object service = bc.getService(sr);
    usingBundles = sr.getUsingBundles();
    if (UNREGISTERSERVICE_VALID_DURING_UNREGISTERING) {
      // In this mode the service shall be obtainable during
      // unregistration.
      if (null==service) {
        teststatus = false;
        out.print("*** Service should be available to ServiceListener "
                  +"while handling unregistering event.");
      }
      out.println("Service (unreg): " +service);
      if (checkUsingBundles && usingBundles.length!=1) {
        teststatus = false;
        printUsingBundles(sr,
                          "*** One using bundle expected "
                          +"(unreg, after getService), found: ");
      } else {
        printUsingBundles(sr, "Using bundles (unreg, after getService): ");
      }
    } else {
      // In this mode the service shall NOT be obtainable during
      // unregistration.
      if (null!=service) {
        teststatus = false;
        out.print("*** Service should not be available to ServiceListener "
                  +"while handling unregistering event.");
      }
      if (checkUsingBundles && null!=usingBundles) {
        teststatus = false;
        printUsingBundles(sr,
                          "*** Using bundles (unreg, after getService), "
                          +"should be null but is: ");
      } else {
        printUsingBundles(sr,
                          "Using bundles (unreg, after getService): null");
      }
    }
    bc.ungetService(sr);

    // Check that the UNREGISTERING service can not be looked up
    // using the service registry.
    try {
      Long sid = (Long)sr.getProperty(Constants.SERVICE_ID);
      String sidFilter = "(" +Constants.SERVICE_ID +"=" +sid +")";
      ServiceReference[] srs = bc.getServiceReferences((String)null, sidFilter);
      if (null==srs || 0==srs.length) {
        out.println("ServiceReference for UNREGISTERING service is not"
                    +" found in the service registry; ok.");
      } else {
        teststatus = false;
        out.println("*** ServiceReference for UNREGISTERING"
                    +" service, "
                    + sr
                    +", not found in the service registry; fail.");
        out.print("Found the following Service references: ");
        for (int i=0; null!=srs && i<srs.length; i++) {
          if (i>0) out.print(", ");
          out.print(srs[i]);
        }
        out.println();
      }
    } catch (Throwable t) {
      teststatus = false;
      out.println("*** Unexpected excpetion when trying to lookup a"
                  +" service while it is in state UNREGISTERING; "
                  +t);
      t.printStackTrace(out);
    }
  }
}
 

/**
 * Create a {@code ServiceTracker} on the specified {@code ServiceReference}
 * .
 * 
 * <p>
 * The service referenced by the specified {@code ServiceReference} will be
 * tracked by this {@code ServiceTracker}.
 * 
 * @param context The {@code BundleContext} against which the tracking is
 *        done.
 * @param reference The {@code ServiceReference} for the service to be
 *        tracked.
 * @param customizer The customizer object to call when services are added,
 *        modified, or removed in this {@code ServiceTracker}. If customizer
 *        is {@code null}, then this {@code ServiceTracker} will be used as
 *        the {@code ServiceTrackerCustomizer} and this
 *        {@code ServiceTracker} will call the
 *        {@code ServiceTrackerCustomizer} methods on itself.
 */
public ServiceTracker(final BundleContext context, final ServiceReference<S> reference, final ServiceTrackerCustomizer<S, T> customizer) {
	this.context = context;
	this.trackReference = reference;
	this.trackClass = null;
	this.customizer = (customizer == null) ? this : customizer;
	this.listenerFilter = "(" + Constants.SERVICE_ID + "=" + reference.getProperty(Constants.SERVICE_ID).toString() + ")";
	try {
		this.filter = context.createFilter(listenerFilter);
	} catch (InvalidSyntaxException e) {
		/*
		 * we could only get this exception if the ServiceReference was
		 * invalid
		 */
		IllegalArgumentException iae = new IllegalArgumentException("unexpected InvalidSyntaxException: " + e.getMessage());
		iae.initCause(e);
		throw iae;
	}
}