/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

* Document monitor implementation which reads all files from a directory

*

*/

package com.nokia.tracecompiler.document;

import java.io.File;

import java.util.ArrayList;

import com.nokia.tracecompiler.TraceCompilerGlobals;

import com.nokia.tracecompiler.engine.TraceCompilerEngineErrorMessages;

import com.nokia.tracecompiler.engine.TraceCompilerEngineGlobals;

import com.nokia.tracecompiler.engine.TraceCompilerEngineErrorCodes.TraceCompilerErrorCode;

import com.nokia.tracecompiler.engine.source.SourceEngine;

import com.nokia.tracecompiler.file.FileUtils;

import com.nokia.tracecompiler.source.SourceDocumentFactory;

import com.nokia.tracecompiler.source.SourceDocumentProcessor;

import com.nokia.tracecompiler.utils.DocumentMonitorBase;

/**

 * Document monitor implementation which reads files

 * 

 */

public final class FileDocumentMonitor extends DocumentMonitorBase {

	/**

	 * Document factory

	 */

	private StringDocumentFactory documentFactory;

	/**

	 * Files to be processed

	 */

	private static String[] files;

	/**

	 * Sets the files to be used by the document monitor

	 * 

	 * @param files

	 *            the files

	 */

	public static void setFiles(String[] files) {

		FileDocumentMonitor.files = files;

	}

	/**

	 * Constructor

	 */

	public FileDocumentMonitor() {

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracecompiler.utils.DocumentMonitorBase#getFactory()

	 */

	@Override

	public SourceDocumentFactory getFactory() {

		if (documentFactory == null) {

			documentFactory = new StringDocumentFactory();

		}

		return documentFactory;

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracecompiler.utils.DocumentMonitorAdapter#

	 *      startMonitor(com.nokia.tracecompiler.source.SourceDocumentProcessor)

	 */

	@Override

	public void startMonitor(SourceDocumentProcessor processor) throws Exception {

		// Put source files and non-source files to same list

		SourceEngine sourceEngine = TraceCompilerEngineGlobals.getSourceEngine();

		ArrayList<String> list = sourceEngine.getNonSourceFiles();

		for (int i=0; i < files.length; i++) {

			String fileName = files[i];

			if (!list.contains(fileName)) {

				list.add(fileName);

			}

		}		

		String[] fileArr = new String[list.size()];

		list.toArray(fileArr);

		String err = ""; //$NON-NLS-1$

		for (String fileName : fileArr) {

			File file = new File(fileName);

			if (file.exists() && !file.isDirectory()

					&& FileUtils.isFileAllowed(file.getName())) {

				try {

					TraceCompilerEngineGlobals.getEvents().postInfoMessage(Messages.getString("FileDocumentMonitor.processingSourceFileText") + file.getAbsolutePath(), null); //$NON-NLS-1$

					processor.sourceOpened(new FileDocument(file));

				} catch (Exception e) {

					// Error after processing one file

					String msg = TraceCompilerEngineErrorMessages

							.getErrorMessage(

									TraceCompilerErrorCode.CANNOT_OPEN_SOURCE_FILE,

									null);

					TraceCompilerEngineGlobals.getEvents().postErrorMessage(msg,

							file.getAbsolutePath(),true);

					err = e.getMessage();

				} finally {

					if (TraceCompilerEngineGlobals.getEvents().hasErrorHappened() && !TraceCompilerGlobals.keepGoing())  {

						throw new Exception("TraceCompiler stopping on error. " + err); //$NON-NLS-1$

					}

				}

			}

		}

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracecompiler.utils.DocumentMonitorAdapter#stopMonitor()

	 */

	@Override

	public void stopMonitor() {

	}

}