1 files changed, 100 insertions, 0 deletions
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.filesystem.ui/src/org/eclipse/tcf/te/tcf/filesystem/ui/internal/columns/FileExtBasedImageUpdater.java b/target_explorer/plugins/org.eclipse.tcf.te.filesystem.ui/src/org/eclipse/tcf/te/tcf/filesystem/ui/internal/columns/FileExtBasedImageUpdater.java
new file mode 100644
index 000000000..90ca5dbe7
--- /dev/null
+++ b/target_explorer/plugins/org.eclipse.tcf.te.filesystem.ui/src/org/eclipse/tcf/te/tcf/filesystem/ui/internal/columns/FileExtBasedImageUpdater.java
@@ -0,0 +1,100 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Wind River Systems, Inc. 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:
+ * Wind River Systems - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.tcf.te.tcf.filesystem.ui.internal.columns;
+
+import java.io.File;
+import java.io.IOException;
+
+import org.eclipse.tcf.te.tcf.filesystem.core.model.FSTreeNode;
+
+/**
+ * The image update adapter that updates the images of the file which does
+ * not have a local cache copy. The algorithm is based its extension.
+ */
+public class FileExtBasedImageUpdater implements ImageUpdateAdapter {
+	// The label provider update daemon
+	private LabelProviderUpdateDaemon updateDaemon;
+	
+	/**
+	 * Create an instance with the specified daemon.
+	 * 
+	 * @param daemon The label provider update daemon.
+	 */
+	public FileExtBasedImageUpdater(LabelProviderUpdateDaemon daemon) {
+		this.updateDaemon = daemon;
+	}
+	
+	/**
+	 * Get the node's file extension or null if there is no extension.
+	 * 
+	 * @param node The file tree node.
+	 * @return The file's extension or null.
+	 */
+	private String getFileExt(FSTreeNode node) {
+		String name = node.name;
+		String ext = "noext"; //$NON-NLS-1$
+		int index = name.lastIndexOf("."); //$NON-NLS-1$
+		if (index != -1) ext = name.substring(index + 1);
+		return ext;
+	}
+	
+	/**
+	 * Get the directory to store the temporary mirror files.
+	 * 
+	 * @return The directory to contain the mirror files.
+	 */
+	private File getMirrorDir() {
+		File tmpDir = updateDaemon.getTempDir();
+		File mrrDir = new File(tmpDir, ".mrr"); //$NON-NLS-1$
+		if(!mrrDir.exists() && !mrrDir.mkdirs()) {
+			mrrDir = tmpDir;
+		}
+		return mrrDir;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.tcf.te.tcf.filesystem.internal.columns.ImageUpdateAdapter#getImageKey(org.eclipse.tcf.te.tcf.filesystem.model.FSTreeNode)
+	 */
+	@Override
+	public String getImageKey(FSTreeNode node) {
+		String ext = getFileExt(node);
+		return "EXT_IMAGE@" + ext; //$NON-NLS-1$
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.tcf.te.tcf.filesystem.internal.columns.ImageUpdateAdapter#getMirrorFile(org.eclipse.tcf.te.tcf.filesystem.model.FSTreeNode)
+	 */
+	@Override
+	public File getMirrorFile(FSTreeNode node) {
+		String ext = getFileExt(node);
+		File mrrDir = getMirrorDir();
+		File file = new File(mrrDir, "mirror" + "." + ext); //$NON-NLS-1$ //$NON-NLS-2$
+		if (!file.exists()) {
+			try {
+				file.createNewFile();
+			}
+			catch (IOException e) {
+			}
+		}
+		return file;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * @see org.eclipse.tcf.te.tcf.filesystem.internal.columns.ImageUpdateAdapter#getImgFile(org.eclipse.tcf.te.tcf.filesystem.model.FSTreeNode)
+	 */
+	@Override
+	public File getImageFile(FSTreeNode node) {
+		String ext = getFileExt(node);
+	    return updateDaemon.getTempImg(ext);
+    }
+}