io.joynr.util.JoynrUtil Maven / Gradle / Ivy
package io.joynr.util;
/*
* #%L
* %%
* Copyright (C) 2011 - 2013 BMW Car IT GmbH
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
import io.joynr.exceptions.JoynrRuntimeException;
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.UnknownHostException;
import java.util.Enumeration;
import java.util.Properties;
import java.util.Random;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import java.util.jar.JarInputStream;
import javax.annotation.CheckForNull;
import org.apache.commons.lang.ArrayUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class JoynrUtil {
private static final Logger logger = LoggerFactory.getLogger(JoynrUtil.class);
public enum OS {
LINUX, WIN32, TEST, UNDEFINED
};
public static String getStringFromOS(OS os) {
if (os == OS.WIN32) {
return "win32";
} else if (os == OS.LINUX) {
return "linux";
} else if (os == OS.TEST) {
return "test";
} else {
return "undefined";
}
}
@CheckForNull
public static Properties loadProperties(File file) throws IOException {
if (file != null) {
if (!file.isDirectory()) {
InputStream inputStream = new FileInputStream(file);
return loadProperties(inputStream);
} else {
return loadPropertyDirectory(file);
}
}
return null;
}
public static void copyStream(InputStream in, OutputStream out) throws IOException {
int len;
byte[] buffer = new byte[64 * 1024];
while ((len = in.read(buffer)) > 0) {
out.write(buffer, 0, len);
}
in.close();
out.close();
}
public static File createDir(String dirName) {
File tempDir = new File(dirName);
if (tempDir.exists() == false) {
if (!tempDir.mkdirs()) {
logger.debug("Creating of dir " + dirName + " failed.");
}
}
tempDir.deleteOnExit();
return tempDir;
}
public static File createTempDir(String dirName) {
return createDir(getBaseTempPath() + File.separator + dirName);
}
public static String getBaseTempPath() {
return System.getProperty("java.io.tmpdir");
}
public static File createTempDir() {
Random rand = new Random();
int randomInt = 1 + rand.nextInt();
return createTempDir("tempDir" + randomInt);
}
// If targetLocation does not exist, it will be created.
public static void copyDirectory(File sourceLocation, File targetLocation) throws IOException {
if (sourceLocation.isDirectory()) {
if (!targetLocation.exists()) {
if (targetLocation.mkdir() == false) {
logger.debug("Creating target directory " + targetLocation + " failed.");
}
}
String[] children = sourceLocation.list();
if (children == null) {
return;
}
for (int i = 0; i < children.length; i++) {
copyDirectory(new File(sourceLocation, children[i]), new File(targetLocation, children[i]));
}
} else {
FileInputStream in = null;
FileOutputStream out = null;
try {
in = new FileInputStream(sourceLocation);
out = new FileOutputStream(targetLocation);
copyStream(in, out);
} finally {
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
}
}
}
private static Properties loadPropertyDirectory(File dir) throws IOException {
Properties returnValue = new Properties();
File[] files = dir.listFiles();
if (files != null) {
for (File file : files) {
if (file.getName().endsWith("properties")) {
InputStream inputStream = new FileInputStream(file);
loadProperties(inputStream, returnValue);
}
}
}
return returnValue;
}
public static Properties loadProperties(InputStream configInputStream) throws IOException {
return loadProperties(configInputStream, null);
}
public static Properties loadProperties(InputStream configInputStream, @CheckForNull Properties properties)
throws IOException {
if (configInputStream != null) {
if (properties == null) {
properties = new Properties();
}
properties.load(configInputStream);
configInputStream.close();
return properties;
}
return properties;
}
public static OS getOSFromString(String os) {
if (os.equalsIgnoreCase("win32")) {
return OS.WIN32;
} else if (os.equalsIgnoreCase("linux")) {
return OS.LINUX;
} else if (os.equalsIgnoreCase("test")) {
return OS.TEST;
} else {
return OS.UNDEFINED;
}
}
public static void copyDirectoryFromJar(String jarName, String srcDir, File tmpDir) throws IOException {
JarFile jf = null;
JarInputStream jarInputStream = null;
try {
jf = new JarFile(jarName);
JarEntry je = jf.getJarEntry(srcDir);
if (je.isDirectory()) {
FileInputStream fis = new FileInputStream(jarName);
BufferedInputStream bis = new BufferedInputStream(fis);
jarInputStream = new JarInputStream(bis);
JarEntry ze = null;
while ((ze = jarInputStream.getNextJarEntry()) != null) {
if (ze.isDirectory()) {
continue;
}
if (ze.getName().contains(je.getName())) {
InputStream is = jf.getInputStream(ze);
String name = ze.getName().substring(ze.getName().lastIndexOf("/") + 1);
File tmpFile = new File(tmpDir + "/" + name); //File.createTempFile(file.getName(), "tmp");
tmpFile.deleteOnExit();
OutputStream outputStreamRuntime = new FileOutputStream(tmpFile);
copyStream(is, outputStreamRuntime);
}
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (jf != null) {
jf.close();
}
if (jarInputStream != null) {
jarInputStream.close();
}
}
}
public static void checkConnectivity(String host) throws IOException {
InetAddress headUnitAddr = InetAddress.getByName(host);
Enumeration interfaces = NetworkInterface.getNetworkInterfaces();
NetworkInterface iface;
while (interfaces.hasMoreElements()) {
iface = interfaces.nextElement();
if (headUnitAddr.isReachable(iface, 0, 5000)) {
return;
}
}
throw new UnknownHostException("Connectivity check to the host \"" + host + "\" has failed");
}
public static Byte[] getResourceAsByteArray(InputStream inputStream) {
return (Byte[]) getResource(inputStream, true);
}
public static String getResourceAsString(InputStream inputStream) {
return (String) getResource(inputStream, false);
}
public static Byte[] getResourceAsByteArray(String fileName) {
return (Byte[]) getResource(JoynrUtil.class.getResourceAsStream(fileName), true);
}
public static String getResourceAsString(String fileName) {
return (String) getResource(JoynrUtil.class.getResourceAsStream(fileName), false);
}
public static void writeResource(String stringResource, String fileName) throws IOException {
writeResource(stringResource.getBytes("UTF-8"), fileName);
}
public static void writeResource(Byte[] byteResource, String fileName) throws IOException {
writeResource(ArrayUtils.toPrimitive(byteResource), fileName);
}
public static void writeResource(byte[] byteResource, String fileName) throws IOException {
File file = new File(fileName);
if (!file.exists()) {
createDir(file.getParentFile().getAbsolutePath());
}
if (!file.createNewFile()) {
logger.debug("Creating file " + fileName + " failed.");
}
FileOutputStream outputStream = null;
try {
outputStream = new FileOutputStream(fileName);
outputStream.write(byteResource);
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
if (outputStream != null) {
outputStream.close();
}
}
}
private static Object getResource(InputStream inputStream, boolean asByteArray) throws JoynrRuntimeException {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream(1024);
byte[] bytes = new byte[512];
// Read bytes from the input stream in bytes.length-sized chunks and
// write
// them into the output stream
int readBytes;
try {
while ((readBytes = inputStream.read(bytes)) > 0) {
outputStream.write(bytes, 0, readBytes);
}
Object result = null;
if (asByteArray) {
result = ArrayUtils.toObject(outputStream.toByteArray());
} else {
result = outputStream.toString("UTF-8");
}
// Close the streams
inputStream.close();
outputStream.close();
return result;
} catch (IOException e) {
throw new JoynrRuntimeException(e.getMessage(), e) {
private static final long serialVersionUID = 1L;
};
}
}
}
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