X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.db%2Fsrc%2Forg%2Fsimantics%2Fdb%2FManager.java;fp=bundles%2Forg.simantics.db%2Fsrc%2Forg%2Fsimantics%2Fdb%2FManager.java;h=69b75e33759f43eb99a736e79ab85c36b5411b54;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.db/src/org/simantics/db/Manager.java b/bundles/org.simantics.db/src/org/simantics/db/Manager.java
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+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.InvalidSyntaxException;
+import org.osgi.framework.ServiceReference;
+import org.simantics.db.internal.Activator;
+
+/**
+ * @author Antti Villberg
+ */
+public final class Manager {
+
+    private Manager() {}
+
+    /**
+     * Search for registered database driver by driver id.
+     *
+     * @param id for database driver.
+     * @return database driver or null.
+     */
+    public static Driver getDriver(String id) {
+        Map<String, Driver> drivers = collectDrivers();
+        return drivers.get(id);
+    }
+
+    private static Map<String, Driver> collectDrivers() {
+        BundleContext context = Activator.getContext();
+        Collection<ServiceReference<Driver>> serviceReferences;
+        try {
+            serviceReferences = context.getServiceReferences(Driver.class, null);
+        } catch (InvalidSyntaxException e) {
+            e.printStackTrace();
+            serviceReferences = Collections.emptyList();
+        }
+        Map<String, Driver> drivers = new HashMap<>(serviceReferences.size());
+        for (ServiceReference<Driver> reference : serviceReferences) {
+            Driver driver = context.getService(reference);
+            String driverName = driver.getName();
+            if (driverName != null && !driverName.isEmpty()) {
+                drivers.put(driverName, driver);
+            }
+        }
+        return drivers;
+    }
+    
+    public static DatabaseUserAgent getUserAgent(String id) {
+        Map<String, DatabaseUserAgent> agents = collectUserAgents();
+        return agents.get(id);
+    }
+    
+    private static Map<String, DatabaseUserAgent> collectUserAgents() {
+        BundleContext context = Activator.getContext();
+        Collection<ServiceReference<DatabaseUserAgent>> serviceReferences;
+        try {
+            serviceReferences = context.getServiceReferences(DatabaseUserAgent.class, null);
+        } catch (InvalidSyntaxException e) {
+            e.printStackTrace();
+            serviceReferences = Collections.emptyList();
+        }
+        Map<String, DatabaseUserAgent> drivers = new HashMap<>(serviceReferences.size());
+        for (ServiceReference<DatabaseUserAgent> reference : serviceReferences) {
+            DatabaseUserAgent dbua = context.getService(reference);
+            String driverName = dbua.getId();
+            if (driverName != null && !driverName.isEmpty()) {
+                drivers.put(driverName, dbua);
+            }
+        }
+        return drivers;
+    }
+
+}