/**
* Copyright 2011-2014 Asakusa Framework Team.
*
* 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 com.asakusafw.windgate.stream;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.util.Scanner;
import com.asakusafw.windgate.core.vocabulary.DataModelStreamSupport;
/**
* Supports {@link StringBuilder}.
*/
@SuppressWarnings("resource")
public class StringBuilderSupport implements DataModelStreamSupport<StringBuilder> {
@Override
public Class<StringBuilder> getSupportedType() {
return StringBuilder.class;
}
@Override
public DataModelReader<StringBuilder> createReader(String path, InputStream stream) throws IOException {
final Scanner scanner = new Scanner(stream, "UTF-8");
return new DataModelReader<StringBuilder>() {
@Override
public boolean readTo(StringBuilder object) throws IOException {
if (scanner.hasNextLine()) {
object.setLength(0);
object.append(scanner.nextLine());
return true;
}
return false;
}
};
}
@Override
public DataModelWriter<StringBuilder> createWriter(String path, OutputStream stream) throws IOException {
final BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(stream, "UTF-8"));
return new DataModelWriter<StringBuilder>() {
@Override
public void flush() throws IOException {
writer.flush();
}
@Override
public void write(StringBuilder object) throws IOException {
writer.write(object.toString());
writer.newLine();
}
};
}
}