/** Write the given configuration to the given output stream. */
public static void write(CeylonConfig orgconfig, OutputStream out) throws IOException {
final CeylonConfig config = orgconfig.copy();
final Writer writer = new BufferedWriter(new OutputStreamWriter(out, Charset.forName("UTF-8")));
writeSections(writer, config, out);
}
/**
* Reads config from the given input, updating it using the given configuration and writing in to
* the given output.
*/
public static void write(CeylonConfig orgconfig, InputStream in, OutputStream out)
throws IOException {
final CeylonConfig config = orgconfig.copy();
final Writer writer = new BufferedWriter(new OutputStreamWriter(out, Charset.forName("UTF-8")));
ConfigReader reader =
new ConfigReader(
in,
new ImprovedConfigReaderListenerAdapter(
new ImprovedConfigReaderListener() {
private boolean skipToNewline = false;
@Override
public void setup() throws IOException {
// Ignoring setup
}
@Override
public void onSection(String section, String text) throws IOException {
if (config.isSectionDefined(section)) {
writer.write(text);
skipToNewline = false;
} else {
skipToNewline = true;
}
}
@Override
public void onSectionEnd(String section) throws IOException {
writeOptions(writer, config, section);
}
@Override
public void onOption(String name, String value, String text) throws IOException {
if (config.isOptionDefined(name)) {
String[] newValues = config.getOptionValues(name);
if (value.equals(newValues[0])) {
// The value hasn't changed, we'll write the option *exactly* as it was
writer.write(text);
} else {
// The value has changed, we will write a new option
CeylonConfig.Key k = new CeylonConfig.Key(name);
writeOptionValue(writer, k.getOptionName(), newValues[0]);
}
removeOptionValue(name);
skipToNewline = false;
} else {
skipToNewline = true;
}
}
@Override
public void onComment(String text) throws IOException {
if (skipToNewline) {
skipToNewline = !text.contains("\n");
} else {
writer.write(text);
}
}
@Override
public void onWhitespace(String text) throws IOException {
if (skipToNewline) {
skipToNewline = !text.contains("\n");
} else {
writer.write(text);
}
}
@Override
public void cleanup() throws IOException {
// Ignoring cleanup
}
private void removeOptionValue(String name) {
String[] values = config.getOptionValues(name);
if (values.length > 1) {
values = Arrays.copyOfRange(values, 1, values.length);
config.setOptionValues(name, values);
} else {
config.removeOption(name);
}
}
}));
reader.process();
writer.flush();
// Now write what's left of the configuration to the output
writeSections(writer, config, out);
writer.flush();
}