Move to Commons Base

[lgpl/argeo-commons.git] / base / runtime / org.argeo.eclipse.ui.rap / src / main / java / org / argeo / eclipse / ui / specific / GenericUploadControl.java

diff --git a/base/runtime/org.argeo.eclipse.ui.rap/src/main/java/org/argeo/eclipse/ui/specific/GenericUploadControl.java b/base/runtime/org.argeo.eclipse.ui.rap/src/main/java/org/argeo/eclipse/ui/specific/GenericUploadControl.java
new file mode 100644 (file)
index 0000000..13e695d
--- /dev/null
+++ b/base/runtime/org.argeo.eclipse.ui.rap/src/main/java/org/argeo/eclipse/ui/specific/GenericUploadControl.java
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2007-2012 Mathieu Baudier
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.eclipse.ui.specific;
+
+import java.io.InputStream;
+
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.ArgeoException;
+import org.eclipse.rwt.widgets.Upload;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.ModifyListener;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+
+public class GenericUploadControl extends Composite {
+       private final static Log log = LogFactory
+                       .getLog(GenericUploadControl.class);
+
+       private Upload upload;
+
+       public GenericUploadControl(Composite parent, int style, String browseLabel) {
+               super(parent, style);
+               createControl(this, browseLabel);
+
+       }
+
+       private void createControl(Composite parent, String browseLabel) {
+               parent.setLayout(new GridLayout(1, false));
+               parent.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
+
+               upload = new Upload(parent, SWT.BORDER);
+               upload.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
+               upload.setBrowseButtonText(browseLabel);
+               // upload.addModifyListener(new UploadListener());
+               parent.pack();
+       }
+
+       /**
+        * Wrap upload.getLastFileUploaded(). Gets the name of the last uploaded
+        * file. This method can be called even if the upload has not finished yet.
+        */
+       public String getLastFileUploadedName() {
+               return upload.getLastFileUploaded();
+       }
+
+       public boolean isControlEmpty() {
+               String path = upload.getPath();
+               if (log.isTraceEnabled())
+                       log.trace("UploadControl chosen path : " + path);
+               if (path == null || "".equals(path.trim()))
+                       return true;
+               else
+                       return false;
+       }
+
+       public byte[] performUpload() {
+               boolean success = upload.performUpload();
+               if (success) {
+                       if (upload.getUploadItem().getFileSize() == -1)
+                               throw new ArgeoException("File "
+                                               + upload.getUploadItem().getFileName()
+                                               + " has not been uploaded, its size is -1");
+
+                       InputStream inStream = null;
+                       byte[] fileBA = null;
+                       try {
+                               inStream = upload.getUploadItem().getFileInputStream();
+                               fileBA = IOUtils.toByteArray(inStream);
+                       } catch (Exception e) {
+                               throw new ArgeoException("Cannot read uploaded data", e);
+                       } finally {
+                               IOUtils.closeQuietly(inStream);
+                       }
+                       return fileBA;
+               }
+               return null;
+       }
+
+       public void addModifyListener(ModifyListener listener) {
+               upload.addModifyListener(listener);
+       }
+
+       // private class UploadManager extends UploadAdapter {
+       // private Upload upload;
+       //
+       // public UploadManager(Upload upload) {
+       // super();
+       // this.upload = upload;
+       // }
+       //
+       // public void uploadFinished(UploadEvent uploadEvent) {
+       // handleUploadFinished(upload);
+       // }
+       //
+       // public void uploadInProgress(UploadEvent uploadEvent) {
+       // }
+       //
+       // public void uploadException(UploadEvent uploadEvent) {
+       // Exception exc = uploadEvent.getUploadException();
+       // if (exc != null) {
+       // MessageDialog.openError(Display.getCurrent().getActiveShell(),
+       // "Error", exc.getMessage());
+       // }
+       // }
+       //
+       // }
+       //
+
+}