org.jsonschema2pojo.FileCodeWriterWithEncoding Maven / Gradle / Ivy
/**
* Copyright © 2010-2017 Nokia
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jsonschema2pojo;
import java.io.File;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.nio.charset.Charset;
import java.nio.charset.CharsetEncoder;
import com.sun.codemodel.JPackage;
import com.sun.codemodel.util.UnicodeEscapeWriter;
/**
* A writer that honours the given character encoding (workaround for an issue
* with {@link com.sun.codemodel.util.EncoderFactory#createEncoder(String)} that
* causes the given encoding to be ignored).
*/
public class FileCodeWriterWithEncoding extends com.sun.codemodel.writer.FileCodeWriter {
public FileCodeWriterWithEncoding(File target, String encoding) throws IOException {
super(target, encoding);
}
@Override
public Writer openSource(JPackage pkg, String fileName) throws IOException {
final Writer bw = new OutputStreamWriter(openBinary(pkg, fileName), encoding);
return new UnicodeEscapeWriter(bw) {
private final CharsetEncoder encoder = Charset.forName(encoding).newEncoder();
@Override
protected boolean requireEscaping(int ch) {
// control characters
if (ch < 0x20 && " \t\r\n".indexOf(ch) == -1) {
return true;
}
// ASCII chars
if (ch < 0x80) {
return false;
}
return !encoder.canEncode((char) ch);
}
};
}
}