public void update(URL svg) {
g.setColor(new Color(0, 0, 0, 255));
g.setColor(new Color(20, 20, 20, 200));
g.setBackground(new Color(0, 0, 0, 0));
g.clearRect(0, 0, OSDParams.W, OSDParams.H);
Transcoder t =
new ImageTranscoder() {
@Override
public BufferedImage createImage(int arg0, int arg1) {
return bi;
}
@Override
public void writeImage(BufferedImage arg0, TranscoderOutput arg1)
throws TranscoderException {
// TODO Auto-generated method stub
}
};
try {
TranscoderInput ti = new TranscoderInput(new FileReader(svg.getFile()));
ti.setURI(svg.toURI().toString());
TranscoderOutput to = new TranscoderOutput();
t.transcode(ti, to);
} catch (Exception e) {
System.out.println("Failed to transcode");
e.printStackTrace();
throw new RuntimeException(e);
}
}
public void convert(InputStream in, OutputStream out, Integer size) throws TranscoderException {
Transcoder t = createTranscoder();
if (size != null) {
final float sizeBound = Math.max(Math.min(size, 2000.0f), 32.0f);
t.addTranscodingHint(SVGAbstractTranscoder.KEY_WIDTH, sizeBound);
}
t.transcode(new TranscoderInput(in), new TranscoderOutput(out));
}
public static void setTranscoderStringHint(
Transcoder transcoder, String property, TranscodingHints.Key key) {
String str = System.getProperty(property);
if (str != null) {
transcoder.addTranscodingHint(key, str);
}
}
public static void setTranscoderRectangleHint(
Transcoder transcoder, String property, TranscodingHints.Key key) {
String str = System.getProperty(property);
if (str != null) {
StringTokenizer st = new StringTokenizer(str, " ,");
if (st.countTokens() != 4) {
handleValueError(property, str);
}
try {
String x = st.nextToken();
String y = st.nextToken();
String width = st.nextToken();
String height = st.nextToken();
Rectangle2D r =
new Rectangle2D.Float(
Float.parseFloat(x),
Float.parseFloat(y),
Float.parseFloat(width),
Float.parseFloat(height));
transcoder.addTranscodingHint(key, r);
} catch (NumberFormatException e) {
handleValueError(property, str);
}
}
}
public static void setTranscoderBooleanHint(
Transcoder transcoder, String property, TranscodingHints.Key key) {
String str = System.getProperty(property);
if (str != null) {
Boolean value = new Boolean("true".equalsIgnoreCase(str));
transcoder.addTranscodingHint(key, value);
}
}
@Override
protected void execute(Search search, SearchKey key, SolrDocumentList documents)
throws ActionException {
Parameter param = em.find(Parameter.class, "SEARCH_REPO");
String repo = param.getValue();
File repoDir =
new File(
repo + File.separator + search.getConfig().getId() + File.separator + search.getId());
repoDir.mkdirs();
ImageRenderer imageRenderer = new ImageRenderer();
Transcoder transcoder = new PDFTranscoder();
for (SolrDocument doc : documents) {
String docUrl = (String) doc.getFieldValue(URL.toString());
String docTitle = (String) doc.getFieldValue(TITLE.toString());
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
File outputFile = new File(repoDir.getAbsolutePath() + File.separator + docTitle + ".pdf");
try {
imageRenderer.renderURL(docUrl, outputStream, ImageRenderer.Type.SVG);
} catch (IOException | SAXException e) {
log.error("SVG rendering problem", e);
createErrorFile(docUrl, outputFile, e);
continue;
}
byte[] svgBytes = outputStream.toByteArray();
ByteArrayInputStream inputStream = new ByteArrayInputStream(svgBytes);
TranscoderInput transcoderInput = new TranscoderInput(inputStream);
TranscoderOutput transcoderOutput = null;
try {
transcoderOutput = new TranscoderOutput(new FileOutputStream(outputFile));
} catch (FileNotFoundException e) {
log.warn("this shouldn't happen!", e);
createErrorFile(docUrl, outputFile, e);
continue;
}
try {
transcoder.transcode(transcoderInput, transcoderOutput);
} catch (TranscoderException e) {
log.warn("Transcoding problem", e);
createErrorFile(docUrl, outputFile, e);
continue;
}
}
}
public static void setTranscoderFloatHint(
Transcoder transcoder, String property, TranscodingHints.Key key) {
String str = System.getProperty(property);
if (str != null) {
try {
Float value = new Float(Float.parseFloat(str));
transcoder.addTranscodingHint(key, value);
} catch (NumberFormatException e) {
handleValueError(property, str);
}
}
}
/**
* hightchart导出图片
*
* @param request
* @param response
* @throws IOException
*/
@RequestMapping(params = "export")
public void export(HttpServletRequest request, HttpServletResponse response) throws IOException {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String type = request.getParameter("type");
String svg = request.getParameter("svg");
String filename = request.getParameter("filename");
filename = filename == null ? "chart" : filename;
ServletOutputStream out = response.getOutputStream();
try {
if (null != type && null != svg) {
svg = svg.replaceAll(":rect", "rect");
String ext = "";
Transcoder t = null;
if (type.equals("image/png")) {
ext = "png";
t = new PNGTranscoder();
} else if (type.equals("image/jpeg")) {
ext = "jpg";
t = new JPEGTranscoder();
} else if (type.equals("application/pdf")) {
ext = "pdf";
t = (Transcoder) new PDFTranscoder();
} else if (type.equals("image/svg+xml")) ext = "svg";
response.addHeader(
"Content-Disposition",
"attachment; filename="
+ new String(filename.getBytes("GBK"), "ISO-8859-1")
+ "."
+ ext);
response.addHeader("Content-Type", type);
if (null != t) {
TranscoderInput input = new TranscoderInput(new StringReader(svg));
TranscoderOutput output = new TranscoderOutput(out);
try {
t.transcode(input, output);
} catch (TranscoderException e) {
out.print("Problem transcoding stream. See the web logs for more details.");
e.printStackTrace();
}
} else if (ext.equals("svg")) {
// out.print(svg);
OutputStreamWriter writer = new OutputStreamWriter(out, "UTF-8");
writer.append(svg);
writer.close();
} else out.print("Invalid type: " + type);
} else {
response.addHeader("Content-Type", "text/html");
out.println(
"Usage:\n\tParameter [svg]: The DOM Element to be converted."
+ "\n\tParameter [type]: The destination MIME type for the elment to be transcoded.");
}
} finally {
if (out != null) {
out.flush();
out.close();
}
}
}
protected Transcoder createTranscoder() {
Transcoder t = new JPEGTranscoder();
t.addTranscodingHint(JPEGTranscoder.KEY_QUALITY, 0.95f);
return t;
}
