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/*
* Copyright (C) 2012 The Guava Authors
*
* 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.google.common.io;
import static com.google.common.base.Charsets.UTF_8;
import java.io.FilterWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
/**
* A char sink for testing that has configurable behavior.
*
* @author Colin Decker
*/
public class TestCharSink extends CharSink implements TestStreamSupplier {
private final TestByteSink byteSink;
public TestCharSink(TestOption... options) {
this.byteSink = new TestByteSink(options);
}
public String getString() {
return new String(byteSink.getBytes(), UTF_8);
}
@Override
public boolean wasStreamOpened() {
return byteSink.wasStreamOpened();
}
@Override
public boolean wasStreamClosed() {
return byteSink.wasStreamClosed();
}
@Override
public Writer openStream() throws IOException {
// using TestByteSink's output stream to get option behavior, so flush to it on every write
return new FilterWriter(new OutputStreamWriter(byteSink.openStream(), UTF_8)) {
@Override
public void write(int c) throws IOException {
super.write(c);
flush();
}
@Override
public void write(char[] cbuf, int off, int len) throws IOException {
super.write(cbuf, off, len);
flush();
}
@Override
public void write(String str, int off, int len) throws IOException {
super.write(str, off, len);
flush();
}
};
}
}
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