start implementation of import resource

scm-webapp/src/main/java/sonia/scm/api/rest/resources/RepositoryImportResource.java

@@ -0,0 +1,158 @@
+/**
+ * Copyright (c) 2010, Sebastian Sdorra All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer. 2. Redistributions in
+ * binary form must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution. 3. Neither the name of SCM-Manager;
+ * nor the names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://bitbucket.org/sdorra/scm-manager
+ *
+ */
+
+
+
+package sonia.scm.api.rest.resources;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.Singleton;
+
+import org.codehaus.enunciate.modules.jersey.SpringManagedLifecycle;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import sonia.scm.NotSupportedFeatuerException;
+import sonia.scm.Type;
+import sonia.scm.repository.RepositoryHandler;
+import sonia.scm.repository.RepositoryManager;
+import sonia.scm.util.SecurityUtil;
+import sonia.scm.web.security.WebSecurityContext;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.GenericEntity;
+import javax.ws.rs.core.MediaType;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+@Singleton
+@Path("import/repositories")
+@SpringManagedLifecycle
+public class RepositoryImportResource
+{
+
+  /**
+   * the logger for RepositoryImportResource
+   */
+  private static final Logger logger =
+    LoggerFactory.getLogger(RepositoryImportResource.class);
+
+  //~--- constructors ---------------------------------------------------------
+
+  /**
+   * Constructs ...
+   *
+   *
+   * @param manager
+   * @param securityContextProvider
+   */
+  @Inject
+  public RepositoryImportResource(
+          RepositoryManager manager,
+          Provider<WebSecurityContext> securityContextProvider)
+  {
+    this.manager = manager;
+    this.securityContextProvider = securityContextProvider;
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @return
+   */
+  @GET
+  @Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
+  public GenericEntity<List<Type>> getImportableTypes()
+  {
+    SecurityUtil.assertIsAdmin(securityContextProvider);
+
+    List<Type> types = new ArrayList<Type>();
+    Collection<Type> handlerTypes = manager.getTypes();
+
+    for (Type t : handlerTypes)
+    {
+      RepositoryHandler handler = manager.getHandler(t.getName());
+
+      if (handler != null)
+      {
+        try
+        {
+          if (handler.getImportHandler() != null)
+          {
+            types.add(t);
+          }
+        }
+        catch (NotSupportedFeatuerException ex)
+        {
+          if (logger.isTraceEnabled())
+          {
+            logger.trace("import handler is not supported", ex);
+          }
+          else if (logger.isInfoEnabled())
+          {
+            logger.info("{} handler does not support import of repositories",
+                        t.getName());
+          }
+        }
+      }
+      else if (logger.isWarnEnabled())
+      {
+        logger.warn("could not find handler for type {}", t.getName());
+      }
+    }
+
+    return new GenericEntity<List<Type>>(types) {}
+    ;
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private RepositoryManager manager;
+
+  /** Field description */
+  private Provider<WebSecurityContext> securityContextProvider;
+}