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/*******************************************************************************
* Copyright (c) 2005, 2006 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ua.tests.util;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.eclipse.core.runtime.Platform;
import org.osgi.framework.Bundle;
/*
* Utility methods for working with files.
*/
public class FileUtil {
/**
* Gets the contents of the file with the given relative path in the given bundle,
* as a String (file must be encoded as UTF-8).
*/
public static String getContents(Bundle bundle, String relativePath) throws IOException {
return readString(bundle.getEntry(relativePath).openStream());
}
/**
* Gets the contents of the file with the given absolute path as a String (file must
* be encoded as UTF-8).
*/
public static String getContents(String absolutePath) throws IOException {
return readString(new FileInputStream(absolutePath));
}
/**
* Generates a filename with path to the result file that will be generated
* for the intro xml referred to by the string.
*/
public static String getResultFile(String in) {
return getResultFile(in, false);
}
/**
* Same as above, but gives the option of appending os, ws, and arch. For example,
* myfile_serialized_macosx_carbon_ppc.txt.
*/
public static String getResultFile(String in, boolean env) {
StringBuffer buf = new StringBuffer();
buf.append(in.substring(0, in.lastIndexOf('.')) + "_serialized");
if (env) {
buf.append('_');
buf.append(Platform.getOS());
buf.append('_');
buf.append(Platform.getWS());
buf.append('_');
buf.append(Platform.getOSArch());
}
buf.append(".txt");
return buf.toString();
}
/**
* Gets the contents of the result file with the given original relative path in
* the given bundle, as a String (file must be encoded as UTF-8).
*/
public static String getResultFileContents(Bundle bundle, String absolutePath) throws IOException {
/*
* Try [filename]_serialized_os_ws_arch.txt. If it's not there, try
* [filename]_serialized.txt.
*
* We use different files for os/ws/arch combinations in order to test dynamic content,
* specifically filtering. Some of the files have filters by os, ws, and arch so the
* result is different on each combination.
*/
String contents = null;
try {
contents = getContents(bundle, getResultFile(absolutePath, true));
}
catch(Exception e) {
// didn't find the _serialized_os_ws_arch.txt file, try just _serialized.txt
}
if (contents == null) {
try {
contents = getContents(bundle, getResultFile(absolutePath, false));
}
catch(IOException e) {
throw e;
}
}
return contents;
}
/**
* Gets the contents of the result file with the given original absolute path as
* a String (file must be encoded as UTF-8).
*/
public static String getResultFileContents(String absolutePath) throws IOException {
/*
* Try [filename]_serialized_os_ws_arch.txt. If it's not there, try
* [filename]_serialized.txt.
*
* We use different files for os/ws/arch combinations in order to test dynamic content,
* specifically filtering. Some of the files have filters by os, ws, and arch so the
* result is different on each combination.
*/
String contents = null;
try {
contents = getContents(getResultFile(absolutePath, true));
}
catch(Exception e) {
// didn't find the _serialized_os_ws_arch.txt file, try just _serialized.txt
}
if (contents == null) {
try {
contents = getContents(getResultFile(absolutePath, false));
}
catch(IOException e) {
throw e;
}
}
return contents;
}
/**
* Reads the contents of the input stream as UTF-8 and constructs and returns
* as a String.
*/
private static String readString(InputStream in) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buffer = new byte[4096];
int num;
while ((num = in.read(buffer)) > 0) {
out.write(buffer, 0, num);
}
return new String(out.toByteArray(), "UTF-8");
}
}
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