public static void main(String[] args) throws ClassNotFoundException, IOException {
/*
* process command line arguments
*/
if (args.length < 1) {
usage();
return;
}
boolean verbose = false;
for (int i = 0; i < args.length; ++i) {
String arg = args[i];
if (arg.startsWith("-")) {
switch (arg.charAt(1)) {
case 'p':
protocolVersion = Integer.decode(arg.substring(2)).intValue();
break;
case 's':
serialize = true;
serialStreamFileName = arg.substring(2);
break;
case 'd':
deserialize = true;
serialStreamFileName = arg.substring(2);
break;
case 'n':
instances = Integer.decode(arg.substring(2)).intValue();
instances = Math.min(instances, 1);
break;
case 'v':
verbose = true;
break;
default:
System.err.println("unknown option \"" + arg + "\"");
usage();
return;
}
} else {
if (testClassName == null) testClassName = arg;
else {
System.err.println("invalid argument \"" + arg + "\"");
return;
}
}
}
Class testClass = null;
if (testClassName != null)
try {
testClass = Class.forName(testClassName);
} catch (ClassNotFoundException e) {
}
if (serialStreamFileName == null) {
// If no filename specified only makes sense to perform
// both serialization and deserialization.
serialize = deserialize = true;
}
/*
* create object to be serialized
*/
ByteArrayOutputStream baos = null;
if (serialize) {
OutputStream os = null;
if (serialStreamFileName == null) {
os = baos = new ByteArrayOutputStream(1024);
} else os = new FileOutputStream(serialStreamFileName);
try {
Object obj;
ObjectOutputStream out = new VerboseObjectOutputStream(os, verbose);
try {
out.useProtocolVersion(protocolVersion);
} catch (NoSuchMethodError e) {
// JVM 1.1 does not have this method.
}
if (testClass == null) {
if (testClassName != null) throw new ClassNotFoundException(testClassName);
else throw new Error("No classname provided to serialize");
}
for (int i = 0; i < instances; i++) {
try {
obj = testClass.newInstance();
long start = System.currentTimeMillis();
out.writeObject(obj);
long duration = System.currentTimeMillis() - start;
System.out.println(
"Time " + duration + " millisecs " + "(" + (duration / 1000.0) + " secs)");
System.out.println("Serialize " + obj.toString());
} catch (IllegalAccessException e) {
System.err.println("Class " + testClassName + " does not have a public constructor.");
return;
} catch (InstantiationException e) {
System.err.println("Exception creating instance of " + testClassName + ":");
e.printStackTrace();
return;
}
}
out.close();
} catch (IOException e) {
System.err.println("Exception occurred during serialization: ");
e.printStackTrace();
return;
}
}
if (deserialize) {
InputStream is = null;
if (baos != null) {
is = new ByteArrayInputStream(baos.toByteArray());
} else if (serialStreamFileName != null) {
is = new FileInputStream(serialStreamFileName);
} else {
System.err.println("No input stream specified on commandline.");
return;
}
ObjectInputStream in = null;
try {
in = new VerboseObjectInputStream(is, verbose);
long start = System.currentTimeMillis();
for (int i = 0; i < instances; i++) {
try {
Object obj = in.readObject();
System.out.println("DeSerialize " + obj.toString());
} catch (OptionalDataException e) {
if (!e.eof) System.out.println("Skipping " + e.length + " bytes");
in.skip(e.length);
}
}
long duration = System.currentTimeMillis() - start;
System.out.println(
"Time " + duration + " millisecs " + "(" + (duration / 1000.0) + " secs)");
} catch (EOFException e) {
} catch (IOException e) {
System.err.println("Exception occurred reading object. ");
e.printStackTrace();
} finally {
if (in != null) {
in.close();
}
}
}
System.exit(0);
}
