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/*
* Copyright 2001-2016 Stephen Colebourne
*
* 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.joda.time.format;
import java.io.IOException;
import java.io.Writer;
import java.util.Locale;
import org.joda.time.Chronology;
import org.joda.time.DateTimeZone;
import org.joda.time.ReadablePartial;
/**
* Adapter between old and new printer interface.
*
* @author Stephen Colebourne
* @since 2.4
*/
class DateTimePrinterInternalPrinter implements InternalPrinter {
private final DateTimePrinter underlying;
static InternalPrinter of(DateTimePrinter underlying) {
if (underlying instanceof InternalPrinterDateTimePrinter) {
return (InternalPrinter) underlying;
}
if (underlying == null) {
return null;
}
return new DateTimePrinterInternalPrinter(underlying);
}
private DateTimePrinterInternalPrinter(DateTimePrinter underlying) {
this.underlying = underlying;
}
//-----------------------------------------------------------------------
DateTimePrinter getUnderlying() {
return underlying;
}
//-----------------------------------------------------------------------
public int estimatePrintedLength() {
return underlying.estimatePrintedLength();
}
public void printTo(Appendable appendable, long instant, Chronology chrono, int displayOffset,
DateTimeZone displayZone, Locale locale) throws IOException {
if (appendable instanceof StringBuffer) {
StringBuffer buf = (StringBuffer) appendable;
underlying.printTo(buf, instant, chrono, displayOffset, displayZone, locale);
} else if (appendable instanceof Writer) {
Writer out = (Writer) appendable;
underlying.printTo(out, instant, chrono, displayOffset, displayZone, locale);
} else {
StringBuffer buf = new StringBuffer(estimatePrintedLength());
underlying.printTo(buf, instant, chrono, displayOffset, displayZone, locale);
appendable.append(buf);
}
}
public void printTo(Appendable appendable, ReadablePartial partial, Locale locale) throws IOException {
if (appendable instanceof StringBuffer) {
StringBuffer buf = (StringBuffer) appendable;
underlying.printTo(buf, partial, locale);
} else if (appendable instanceof Writer) {
Writer out = (Writer) appendable;
underlying.printTo(out, partial, locale);
} else {
StringBuffer buf = new StringBuffer(estimatePrintedLength());
underlying.printTo(buf, partial, locale);
appendable.append(buf);
}
}
}