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/*******************************************************************************
* Copyright (c) 2015 Jeff Martin.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser General Public
* License v3.0 which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/lgpl.html
*
* Contributors:
* Jeff Martin - initial API and implementation
******************************************************************************/
package cuchaz.enigma;
import java.awt.Desktop;
import java.io.Closeable;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Arrays;
import java.util.jar.JarFile;
import javassist.CannotCompileException;
import javassist.CtClass;
import javassist.bytecode.Descriptor;
import com.google.common.io.CharStreams;
public class Util {
public static int combineHashesOrdered(Object... objs) {
return combineHashesOrdered(Arrays.asList(objs));
}
public static int combineHashesOrdered(Iterable<Object> objs) {
final int prime = 67;
int result = 1;
for (Object obj : objs) {
result *= prime;
if (obj != null) {
result += obj.hashCode();
}
}
return result;
}
public static void closeQuietly(Closeable closeable) {
if (closeable != null) {
try {
closeable.close();
} catch (IOException ex) {
// just ignore any further exceptions
}
}
}
public static void closeQuietly(JarFile jarFile) {
// silly library should implement Closeable...
if (jarFile != null) {
try {
jarFile.close();
} catch (IOException ex) {
// just ignore any further exceptions
}
}
}
public static String readStreamToString(InputStream in) throws IOException {
return CharStreams.toString(new InputStreamReader(in, "UTF-8"));
}
public static String readResourceToString(String path) throws IOException {
InputStream in = Util.class.getResourceAsStream(path);
if (in == null) {
throw new IllegalArgumentException("Resource not found! " + path);
}
return readStreamToString(in);
}
public static void openUrl(String url) {
if (Desktop.isDesktopSupported()) {
Desktop desktop = Desktop.getDesktop();
try {
desktop.browse(new URI(url));
} catch (IOException ex) {
throw new Error(ex);
} catch (URISyntaxException ex) {
throw new IllegalArgumentException(ex);
}
}
}
public static void writeClass(CtClass c) {
String name = Descriptor.toJavaName(c.getName());
File file = new File(name + ".class");
try (FileOutputStream out = new FileOutputStream(file)) {
out.write(c.toBytecode());
} catch (IOException | CannotCompileException ex) {
throw new Error(ex);
}
}
}
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