public InputStream parse() {
resolveKeepGeneratedDirectory();
StreamCharBuffer streamBuffer = new StreamCharBuffer(1024);
StreamByteBuffer byteOutputBuffer =
new StreamByteBuffer(1024, StreamByteBuffer.ReadMode.RETAIN_AFTER_READING);
try {
streamBuffer.connectTo(
new OutputStreamWriter(byteOutputBuffer.getOutputStream(), GROOVY_SOURCE_CHAR_ENCODING),
true);
} catch (UnsupportedEncodingException e) {
throw new RuntimeException("Grails cannot run unless your environment supports UTF-8!");
}
File keepGeneratedFile = null;
Writer keepGeneratedWriter = null;
if (keepGeneratedDirectory != null) {
keepGeneratedFile = new File(keepGeneratedDirectory, className);
try {
keepGeneratedWriter =
new OutputStreamWriter(
new FileOutputStream(keepGeneratedFile), GROOVY_SOURCE_CHAR_ENCODING);
} catch (IOException e) {
LOG.warn(
"Cannot open keepgenerated file for writing. File's absolute path is '"
+ keepGeneratedFile.getAbsolutePath()
+ "'");
keepGeneratedFile = null;
}
streamBuffer.connectTo(keepGeneratedWriter, true);
}
Writer target = streamBuffer.getWriter();
try {
generateGsp(target, false);
if (LOG.isDebugEnabled()) {
if (keepGeneratedFile != null) {
LOG.debug("Compiled GSP into Groovy code. Source is in " + keepGeneratedFile);
} else {
LOG.debug(
"Configure "
+ CONFIG_PROPERTY_GSP_KEEPGENERATED_DIR
+ " property to view generated source.");
}
}
return byteOutputBuffer.getInputStream();
} finally {
SpringIOUtils.closeQuietly(keepGeneratedWriter);
}
}
