1 files changed, 96 insertions, 0 deletions
diff --git a/plugins/org.eclipse.emf.cdo.net4j/src/org/eclipse/emf/internal/cdo/net4j/protocol/QueryRequest.java b/plugins/org.eclipse.emf.cdo.net4j/src/org/eclipse/emf/internal/cdo/net4j/protocol/QueryRequest.java
new file mode 100644
index 0000000000..0511343d21
--- /dev/null
+++ b/plugins/org.eclipse.emf.cdo.net4j/src/org/eclipse/emf/internal/cdo/net4j/protocol/QueryRequest.java
@@ -0,0 +1,96 @@
+/***************************************************************************
+ * Copyright (c) 2004 - 2009 Eike Stepper (Berlin, Germany) and others.
+ * 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:
+ *    Simon McDuff - initial API and implementation
+ *    Eike Stepper - maintenance
+ **************************************************************************/
+package org.eclipse.emf.internal.cdo.net4j.protocol;
+
+import org.eclipse.emf.cdo.common.io.CDODataInput;
+import org.eclipse.emf.cdo.common.io.CDODataOutput;
+import org.eclipse.emf.cdo.common.protocol.CDOProtocolConstants;
+import org.eclipse.emf.cdo.common.util.CDOQueryQueue;
+import org.eclipse.emf.cdo.internal.common.CDOQueryInfoImpl;
+
+import org.eclipse.emf.internal.cdo.net4j.bundle.OM;
+
+import org.eclipse.net4j.util.om.trace.ContextTracer;
+
+import org.eclipse.emf.spi.cdo.AbstractQueryIterator;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author Simon McDuff
+ */
+public class QueryRequest extends CDOClientRequest<List<Object>>
+{
+  private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG_PROTOCOL, QueryRequest.class);
+
+  private int viewID;
+
+  private AbstractQueryIterator<?> queryResult;
+
+  public QueryRequest(CDOClientProtocol protocol, int viewID, AbstractQueryIterator<?> queryResult)
+  {
+    super(protocol, CDOProtocolConstants.SIGNAL_QUERY);
+    this.viewID = viewID;
+    this.queryResult = queryResult;
+  }
+
+  @Override
+  protected void requesting(CDODataOutput out) throws IOException
+  {
+    out.writeInt(viewID);
+    // TODO Simon: Move I/O logic to CDODataInput/OutputStream?!
+    ((CDOQueryInfoImpl)queryResult.getQueryInfo()).write(out);
+  }
+
+  @Override
+  protected List<Object> confirming(CDODataInput in) throws IOException
+  {
+    int queryID = in.readInt();
+    queryResult.setQueryID(queryID);
+
+    CDOQueryQueue<Object> resultQueue = queryResult.getQueue();
+    List<Object> result = new ArrayList<Object>();
+
+    try
+    {
+      int numberOfObjectsReceived = 0;
+      while (in.readBoolean())
+      {
+        // result
+        Object element = in.readCDORevisionOrPrimitive();
+        resultQueue.add(element);
+        numberOfObjectsReceived++;
+      }
+
+      if (TRACER.isEnabled())
+      {
+        TRACER.format("Query executed [{0} elements received]", numberOfObjectsReceived); //$NON-NLS-1$
+      }
+    }
+    catch (RuntimeException ex)
+    {
+      resultQueue.setException(ex);
+    }
+    catch (Throwable throwable)
+    {
+      resultQueue.setException(new RuntimeException(throwable.getMessage(), throwable));
+    }
+    finally
+    {
+      resultQueue.close();
+    }
+
+    return result;
+  }
+}