1 files changed, 68 insertions, 0 deletions
diff --git a/codan/org.eclipse.cdt.codan.core.cxx/src/org/eclipse/cdt/codan/core/cxx/util/FileTypes.java b/codan/org.eclipse.cdt.codan.core.cxx/src/org/eclipse/cdt/codan/core/cxx/util/FileTypes.java
new file mode 100644
index 00000000000..819a5c42a45
--- /dev/null
+++ b/codan/org.eclipse.cdt.codan.core.cxx/src/org/eclipse/cdt/codan/core/cxx/util/FileTypes.java
@@ -0,0 +1,68 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Google, Inc.
+ * 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:
+ *    Alex Ruiz  - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.codan.core.cxx.util;
+
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.runtime.IPath;
+
+/**
+ * Utility methods related to C++ file types.
+ *
+ * @author alruiz@google.com (Alex Ruiz)
+ */
+public final class FileTypes {
+	private static final String[] CPP_FILE_EXTENSIONS = {
+		"cc",   //$NON-NLS-1$
+		"cpp",  //$NON-NLS-1$
+		"cxx"   //$NON-NLS-1$
+	};
+	private static final String[] HEADER_FILE_EXTENSIONS = { "h" }; //$NON-NLS-1$
+
+	/**
+	 * Indicates whether the given <code>{@link IResource}</code> is a C++ file.
+	 * @param resource the {@code IResource} to check.
+	 * @return {@code true} if the given {@code IResource} is a C++ file; {@code false} otherwise.
+	 */
+	public static boolean isCppFile(IResource resource) {
+		return isFileWithExtension(resource, CPP_FILE_EXTENSIONS);
+	}
+
+	/**
+	 * Indicates whether the given <code>{@link IResource}</code> is a header file.
+	 * @param resource the {@code IResource} to check.
+	 * @return {@code true} if the given {@code IResource} is a header file; {@code false}
+	 *         otherwise.
+	 */
+	public static boolean isHeaderFile(IResource resource) {
+		return isFileWithExtension(resource, HEADER_FILE_EXTENSIONS);
+	}
+
+	private static boolean isFileWithExtension(IResource resource, String[] validExtensions) {
+		if (!(resource instanceof IFile)) {
+			return false;
+		}
+		IPath path = resource.getFullPath();
+		return doesPathHaveExtension(path, validExtensions);
+	}
+
+	private static boolean doesPathHaveExtension(IPath path, String[] validExtensions) {
+		String fileExtension = path.getFileExtension();
+		for (String extension : validExtensions) {
+			if (extension.equalsIgnoreCase(fileExtension)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	private FileTypes() {}
+}