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/*****************************************************************************
* Copyright (c) 2014 CEA LIST 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:
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.infra.tools.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import org.eclipse.core.runtime.Assert;
import org.eclipse.papyrus.infra.tools.Activator;
/**
* @author VL222926
*
*/
public class FileUtils {
public static final String PLATFORM_STRING = "platform"; //$NON-NLS-1$
public static final String PLUGIN_STRING = "plugin"; //$NON-NLS-1$
public static final String SLASH_STRING = "/"; //$NON-NLS-1$
public static final String COLON_STRING = ":"; //$NON-NLS-1$
public static final String DOT_STRING = ".";//$NON-NLS-1$
public static final String TEXT_EXTENSION = "txt";//$NON-NLS-1$
public static final String CSV_EXTENSIOn = "csv";//$NON-NLS-1$
public static final String UNDERSCORE = "_";//$NON-NLS-1$
public static final String LINE_SEPARATOR = "line.separator";//$NON-NLS-1$
private FileUtils() {
// to prevent instanciation
}
/**
* return the system property line seperator
*/
public static final String getSystemPropertyLineSeparator(){
return System.getProperty(LINE_SEPARATOR);
}
/**
* this method read a file and return a string, the line separator used will we System.getProperty("line.separator")
*
* @param pluginName
* the name of the plugin owning the file
* @param filePath
* the path of the file
* @param fileNameWithExtension
* the name fo the file with its extension
* @return
*/
public static final String getStringFromPlatformFile(final String pluginName, final String filePath, final String fileNameWithExtension) {
return getStringFromPlatformFile(pluginName, filePath, fileNameWithExtension, System.getProperty("line.separator")); //$NON-NLS-1$
}
/**
*
* @param pluginName
* the name of the plugin owning the file
* @param filePath
* the path of the file
* @param fileNameWithExtension
* the name fo the file with its extension
* @param lineSeparator
* the line separator to use
* @return
*/
public static final String getStringFromPlatformFile(final String pluginName, final String filePath, final String fileNameWithExtension, final String lineSeparator) {
Assert.isNotNull(pluginName);
Assert.isNotNull(filePath);
Assert.isNotNull(fileNameWithExtension);
StringBuilder pathBuilder = new StringBuilder();
pathBuilder.append(PLATFORM_STRING);
pathBuilder.append(COLON_STRING);
pathBuilder.append(SLASH_STRING);
pathBuilder.append(PLUGIN_STRING);
pathBuilder.append(SLASH_STRING);
pathBuilder.append(pluginName);
if (!filePath.startsWith(SLASH_STRING)) {
pathBuilder.append(SLASH_STRING);
}
pathBuilder.append(filePath);
if (!filePath.endsWith(SLASH_STRING)) {
pathBuilder.append(SLASH_STRING);
}
pathBuilder.append(fileNameWithExtension);
StringBuilder builder = new StringBuilder();
URL url;
try {
url = new URL(pathBuilder.toString());
InputStream inputStream = url.openConnection().getInputStream();
BufferedReader in = new BufferedReader(new InputStreamReader(inputStream));
String inputLine = in.readLine();
while (inputLine != null) {
builder.append(inputLine);
inputLine = in.readLine();
if (inputLine != null) {
builder.append(lineSeparator); // $NON-NLS-1$
}
}
in.close();
} catch (IOException e) {
Activator.log.error(e);
}
return builder.toString();
}
}
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