/** Sets Tesseract's internal parameters. */
private void setTessVariables() {
Enumeration<?> em = prop.propertyNames();
while (em.hasMoreElements()) {
String key = (String) em.nextElement();
api.TessBaseAPISetVariable(handle, key, prop.getProperty(key));
}
}
private void loadConfiguration() throws RuntimeConfigException {
trace(String.format("Loading configuration from [%s]", configFilePath));
try {
InputStream stream = new FileInputStream(configFilePath);
// InputStream stream1 = new FileInputStream("config/ocsswws.config");
try {
Properties fileProperties = new Properties();
fileProperties.load(stream);
// @todo check tests - code was not backward compatible with Java 5
// so i changed it - but this is not the only place of uncompatibilty
// add default properties so that they override file properties
// Set<String> propertyNames = fileProperties.stringPropertyNames();
// for (String propertyName : propertyNames) {
// String propertyValue = fileProperties.getProperty(propertyName);
// if (!isPropertySet(propertyName)) {
// setProperty(propertyName, propertyValue);
// trace(String.format("Configuration property [%s] added",
// propertyName));
// } else {
// trace(String.format("Configuration property [%s] ignored",
// propertyName));
// }
// }
Enumeration<?> enumeration = fileProperties.propertyNames();
while (enumeration.hasMoreElements()) {
final Object key = enumeration.nextElement();
if (key instanceof String) {
final Object value = fileProperties.get(key);
if (value instanceof String) {
final String keyString = (String) key;
String propertyValue = fileProperties.getProperty(keyString);
if (!isPropertySet(keyString)) {
setProperty(keyString, propertyValue);
trace(String.format("Configuration property [%s] added", keyString));
} else {
trace(String.format("Configuration property [%s] ignored", keyString));
}
}
}
}
} finally {
stream.close();
}
} catch (IOException e) {
throw new RuntimeConfigException(
String.format("Failed to load configuration [%s]", configFilePath), e);
}
}
/**
* Helper method to convert properties to string.
*
* @param prop a <code>Properties</code> value
* @return a <code>String</code> value
*/
public static String convertPropsToString(Properties prop) {
if (prop == null) {
return "{null}";
}
StringBuffer strBuf = new StringBuffer("{ ");
for (Enumeration enum1 = prop.propertyNames(); enum1.hasMoreElements(); ) {
Object obj = enum1.nextElement();
strBuf.append("[ ").append(obj).append("->");
Object val = prop.getProperty((String) obj);
if (val == null) strBuf.append("null");
else strBuf.append((String) val);
strBuf.append(" ] ");
}
strBuf.append("}");
return strBuf.toString();
}
@Override
public Response serve(String uri, String method, Properties header, Properties parms) {
if (!uri.equals("/mediaserver")) {
return super.serve(uri, method, header, parms); // this way we can
// also serve up
// normal files and
// content
}
logger.fine(method + " '" + uri + "' ");
Enumeration<?> e = header.propertyNames();
while (e.hasMoreElements()) {
String value = (String) e.nextElement();
logger.fine(" HDR: '" + value + "' = '" + header.getProperty(value) + "'");
}
e = parms.propertyNames();
while (e.hasMoreElements()) {
String value = (String) e.nextElement();
logger.fine(" PRM: '" + value + "' = '" + parms.getProperty(value) + "'");
}
// TODO: check the actual path...
final String mediaPath = parms.getProperty("media");
final String outputFormatStr = parms.getProperty("format");
final String mimeType = parms.getProperty("mime");
logger.info("requested media: " + mediaPath);
logger.info("requested mime type: " + mimeType);
if (mediaPath == null)
return new Response(HTTP_FORBIDDEN, "text/plain", "mediaPath parameter not specified");
if (mimeType == null)
return new Response(HTTP_FORBIDDEN, "text/plain", "mimeType parameter not specified");
// TODO: if we aren't performing any transcoding, just serve the file up
// directly.
// TODO: capture sources need to be treated as singletons, with some
// kind of broadcasting/cloning to ensure
// that multiple connections can be made.
final String serverSideUrlStr = mediaPath; // URLUtils.createUrlStr(new
// File(mediaPath)); // TODO:
// enforce that we can't just
// serve up anything anywhere
final ContentDescriptor outputContentDescriptor =
new FileTypeDescriptor(ContentDescriptor.mimeTypeToPackageName(mimeType));
final Format outputFormat;
if (outputFormatStr == null) {
outputFormat = null;
} else {
try {
outputFormat = FormatArgUtils.parse(outputFormatStr);
} catch (ParseException e1) {
logger.log(Level.WARNING, "" + e1, e1);
return new Response(HTTP_FORBIDDEN, "text/plain", "" + e1);
}
}
logger.info("serverSideUrlStr: " + serverSideUrlStr);
logger.info("outputContentDescriptor: " + outputContentDescriptor);
logger.info("outputFormat: " + outputFormat);
final InputStream is;
try {
is = getInputStream(serverSideUrlStr, outputFormat, outputContentDescriptor);
} catch (Exception e1) {
return new Response(HTTP_FORBIDDEN, "text/plain", "" + e1);
}
final String responseMimeType;
// workaround for the problem that the multipart/x-mixed-replace
// boundary is not stored anywhere.
// this assumes that if we are serving multipart/x-mixed-replace data,
// that MultipartMixedReplaceMux is being used.
if (mimeType.equals("multipart/x-mixed-replace"))
responseMimeType = mimeType + ";boundary=" + MultipartMixedReplaceMux.BOUNDARY;
else responseMimeType = mimeType;
logger.info("Response mime type: " + responseMimeType);
return new Response(HTTP_OK, responseMimeType, is);
}
