public void writeClass(OutputStream is) throws IOException {
DataOutputStream classStream = new DataOutputStream(is);
classStream.writeInt(magic);
classStream.writeShort(minorVersion);
classStream.writeShort(majorVersion);
classStream.writeShort(constantPool.size());
Iterator<CPInfo> i = constantPool.iterator();
i.next(); // Skip initial, not really there entry
for (; i.hasNext(); ) {
CPInfo poolEntry = i.next();
poolEntry.write(classStream);
// Constant pool array must have null entry after long or double
if (poolEntry.tag == CONSTANT_Double || poolEntry.tag == CONSTANT_Long) i.next();
}
classStream.writeShort(accessFlags);
classStream.writeShort(thisClassIndex);
classStream.writeShort(superClassIndex);
classStream.writeShort(interfaces.size());
for (Iterator<Integer> j = interfaces.iterator(); j.hasNext(); ) {
classStream.writeShort(j.next());
}
classStream.writeShort(fields.size());
for (Iterator<FieldInfo> j = fields.iterator(); j.hasNext(); ) {
j.next().write(classStream);
}
classStream.writeShort(methods.size());
for (Iterator<MethodInfo> j = methods.iterator(); j.hasNext(); ) {
j.next().write(classStream);
}
attributes.write(classStream);
}
/**
* @exception IOException
* @exception DicomException
*/
public CEchoRequestCommandMessage() throws DicomException, IOException {
commandField = MessageServiceElementCommand.C_ECHO_RQ;
messageID = super.getNextAvailableMessageID();
int dataSetType = 0x0101; // none
// NB. The Affected SOP Class UID should have no extra trailing padding, otherwise the
// SCP may fail and send an A-ABORT :) (Part 5 says one null (not space) is allowed)
// This is taken care of by the Attribute.write()
AttributeList list = new AttributeList();
{
AttributeTag t = groupLengthTag;
Attribute a = new UnsignedLongAttribute(t);
a.addValue(0);
list.put(t, a);
}
{
AttributeTag t = TagFromName.AffectedSOPClassUID;
Attribute a = new UniqueIdentifierAttribute(t);
a.addValue(SOPClass.Verification);
list.put(t, a);
}
{
AttributeTag t = TagFromName.CommandField;
Attribute a = new UnsignedShortAttribute(t);
a.addValue(commandField);
list.put(t, a);
}
{
AttributeTag t = TagFromName.MessageID;
Attribute a = new UnsignedShortAttribute(t);
a.addValue(messageID);
list.put(t, a);
}
{
AttributeTag t = TagFromName.CommandDataSetType;
Attribute a = new UnsignedShortAttribute(t);
a.addValue(dataSetType);
list.put(t, a);
}
ByteArrayOutputStream bout = new ByteArrayOutputStream();
DicomOutputStream dout =
new DicomOutputStream(
bout, null /* no meta-header */, TransferSyntax.ImplicitVRLittleEndian);
list.write(dout);
bytes = bout.toByteArray();
groupLength = bytes.length - 12;
bytes[8] = (byte) groupLength; // little endian
bytes[9] = (byte) (groupLength >> 8);
bytes[10] = (byte) (groupLength >> 16);
bytes[11] = (byte) (groupLength >> 24);
// System.err.println("CEchoRequestCommandMessage: bytes="+HexDump.dump(bytes));
}
/**
* Read a DICOM dataset and write an XML representation of it to the standard output, or vice
* versa.
*
* @param arg either one filename of the file containing the DICOM dataset, or a direction
* argument (toDICOM or toXML, case insensitive) and an input filename
*/
public static void main(String arg[]) {
try {
boolean bad = true;
boolean toXML = true;
String filename = null;
if (arg.length == 1) {
bad = false;
toXML = true;
filename = arg[0];
} else if (arg.length == 2) {
filename = arg[1];
if (arg[0].toLowerCase(java.util.Locale.US).equals("toxml")) {
bad = false;
toXML = true;
} else if (arg[0].toLowerCase(java.util.Locale.US).equals("todicom")
|| arg[0].toLowerCase(java.util.Locale.US).equals("todcm")) {
bad = false;
toXML = false;
}
}
if (bad) {
System.err.println(
"usage: XMLRepresentationOfDicomObjectFactory [toDICOM|toXML] inputfile");
} else {
if (toXML) {
AttributeList list = new AttributeList();
// System.err.println("reading list");
list.read(filename, null, true, true);
// System.err.println("making document");
Document document = new XMLRepresentationOfDicomObjectFactory().getDocument(list);
// System.err.println(toString(document));
write(System.out, document);
} else {
// long startReadTime = System.currentTimeMillis();
AttributeList list =
new XMLRepresentationOfDicomObjectFactory().getAttributeList(filename);
// System.err.println("AttributeList.main(): read XML and create DICOM AttributeList -
// done in "+(System.currentTimeMillis()-startReadTime)+" ms");
String sourceApplicationEntityTitle =
Attribute.getSingleStringValueOrEmptyString(
list, TagFromName.SourceApplicationEntityTitle);
list.removeMetaInformationHeaderAttributes();
FileMetaInformation.addFileMetaInformation(
list, TransferSyntax.ExplicitVRLittleEndian, sourceApplicationEntityTitle);
list.write(
System.out,
TransferSyntax.ExplicitVRLittleEndian,
true /*useMeta*/,
true /*useBufferedStream*/);
}
}
} catch (Exception e) {
e.printStackTrace(System.err);
}
}
