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 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; }