public boolean WriteBytesToStream(
XStream xStream, String sStreamName, String sMediaType, boolean bCompressed, byte[] pBytes) {
// get output stream of substream
XOutputStream xOutput = xStream.getOutputStream();
if (xOutput == null) {
Error("Can't get XOutputStream implementation from substream '" + sStreamName + "'!");
return false;
}
// get XTrucate implementation from output stream
XTruncate xTruncate = (XTruncate) UnoRuntime.queryInterface(XTruncate.class, xOutput);
if (xTruncate == null) {
Error("Can't get XTruncate implementation from substream '" + sStreamName + "'!");
return false;
}
// write requested byte sequence
try {
xTruncate.truncate();
xOutput.writeBytes(pBytes);
} catch (Exception e) {
Error("Can't write to stream '" + sStreamName + "', exception: " + e);
return false;
}
// get access to the XPropertySet interface
XPropertySet xPropSet = (XPropertySet) UnoRuntime.queryInterface(XPropertySet.class, xStream);
if (xPropSet == null) {
Error("Can't get XPropertySet implementation from substream '" + sStreamName + "'!");
return false;
}
// set properties to the stream
try {
xPropSet.setPropertyValue("MediaType", sMediaType);
xPropSet.setPropertyValue("Compressed", new Boolean(bCompressed));
} catch (Exception e) {
Error("Can't set properties to substream '" + sStreamName + "', exception: " + e);
return false;
}
// check size property of the stream
try {
long nSize = AnyConverter.toLong(xPropSet.getPropertyValue("Size"));
if (nSize != pBytes.length) {
Error("The 'Size' property of substream '" + sStreamName + "' contains wrong value!");
return false;
}
} catch (Exception e) {
Error("Can't get 'Size' property from substream '" + sStreamName + "', exception: " + e);
return false;
}
return true;
}
public boolean closeOutput(XStream xStream) {
XOutputStream xOutTemp = null;
try {
xOutTemp = xStream.getOutputStream();
if (xOutTemp == null) {
Error("Can't get the output part of a stream!");
return false;
}
} catch (Exception e) {
Error("Can't get the output part of a stream, exception :" + e);
return false;
}
try {
xOutTemp.closeOutput();
} catch (Exception e) {
Error("Can't close output part of a stream, exception :" + e);
return false;
}
return true;
}
public String CreateTempFile(XMultiServiceFactory xMSF) {
String sResult = null;
// try to get temporary file representation
XPropertySet xTempFileProps = null;
try {
Object oTempFile = xMSF.createInstance("com.sun.star.io.TempFile");
xTempFileProps = (XPropertySet) UnoRuntime.queryInterface(XPropertySet.class, oTempFile);
} catch (Exception e) {
}
if (xTempFileProps != null) {
try {
xTempFileProps.setPropertyValue("RemoveFile", new Boolean(false));
sResult = AnyConverter.toString(xTempFileProps.getPropertyValue("Uri"));
} catch (Exception e) {
Error("Can't control TempFile properties, exception: " + e);
}
} else {
Error("Can't create temporary file representation!");
}
// close temporary file explicitly
try {
XStream xStream = (XStream) UnoRuntime.queryInterface(XStream.class, xTempFileProps);
if (xStream != null) {
XOutputStream xOut = xStream.getOutputStream();
if (xOut != null) xOut.closeOutput();
XInputStream xIn = xStream.getInputStream();
if (xIn != null) xIn.closeInput();
} else Error("Can't close TempFile!");
} catch (Exception e) {
Error("Can't close TempFile, exception: " + e);
}
return sResult;
}
public boolean WriteBytesToSubstreamDefaultCompressed(
XStorage xStorage, String sStreamName, String sMediaType, byte[] pBytes) {
// open substream element
XStream xSubStream = null;
try {
Object oSubStream = xStorage.openStreamElement(sStreamName, ElementModes.WRITE);
xSubStream = (XStream) UnoRuntime.queryInterface(XStream.class, oSubStream);
if (xSubStream == null) {
Error("Can't create substream '" + sStreamName + "'!");
return false;
}
} catch (Exception e) {
Error("Can't create substream '" + sStreamName + "', exception : " + e + "!");
return false;
}
// get output stream of substream
XOutputStream xOutput = xSubStream.getOutputStream();
if (xOutput == null) {
Error("Can't get XOutputStream implementation from substream '" + sStreamName + "'!");
return false;
}
// get XTrucate implementation from output stream
XTruncate xTruncate = (XTruncate) UnoRuntime.queryInterface(XTruncate.class, xOutput);
if (xTruncate == null) {
Error("Can't get XTruncate implementation from substream '" + sStreamName + "'!");
return false;
}
// write requested byte sequence
try {
xTruncate.truncate();
xOutput.writeBytes(pBytes);
} catch (Exception e) {
Error("Can't write to stream '" + sStreamName + "', exception: " + e);
return false;
}
// get access to the XPropertySet interface
XPropertySet xPropSet =
(XPropertySet) UnoRuntime.queryInterface(XPropertySet.class, xSubStream);
if (xPropSet == null) {
Error("Can't get XPropertySet implementation from substream '" + sStreamName + "'!");
return false;
}
// set properties to the stream
// do not set the compressed property
try {
xPropSet.setPropertyValue("MediaType", sMediaType);
} catch (Exception e) {
Error("Can't set properties to substream '" + sStreamName + "', exception: " + e);
return false;
}
// check size property of the stream
try {
long nSize = AnyConverter.toLong(xPropSet.getPropertyValue("Size"));
if (nSize != pBytes.length) {
Error("The 'Size' property of substream '" + sStreamName + "' contains wrong value!");
return false;
}
} catch (Exception e) {
Error("Can't get 'Size' property from substream '" + sStreamName + "', exception: " + e);
return false;
}
// free the stream resources, garbage collector may remove the object too late
if (!disposeStream(xSubStream, sStreamName)) return false;
return true;
}