/**
* Copyright (c) 2013, impossibl.com
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of impossibl.com nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package com.impossibl.postgres.system.procs;
import com.impossibl.postgres.api.data.Interval;
import com.impossibl.postgres.system.Context;
import com.impossibl.postgres.types.PrimitiveType;
import com.impossibl.postgres.types.Type;
import static com.impossibl.postgres.types.PrimitiveType.Interval;
import java.io.IOException;
import static java.lang.String.format;
import io.netty.buffer.ByteBuf;
public class Intervals extends SimpleProcProvider {
public Intervals() {
super(new TxtEncoder(), new TxtDecoder(), new BinEncoder(), new BinDecoder(), "interval_");
}
static class BinDecoder extends BinaryDecoder {
@Override
public PrimitiveType getInputPrimitiveType() {
return Interval;
}
@Override
public Class<?> getOutputType() {
return Interval.class;
}
@Override
public Interval decode(Type type, Short typeLength, Integer typeModifier, ByteBuf buffer, Context context) throws IOException {
int length = buffer.readInt();
if (length == -1) {
return null;
}
else if (length != 16) {
throw new IOException("invalid length");
}
long timeMicros = buffer.readLong();
int days = buffer.readInt();
int months = buffer.readInt();
return new Interval(months, days, timeMicros);
}
}
static class BinEncoder extends BinaryEncoder {
@Override
public Class<?> getInputType() {
return Interval.class;
}
@Override
public PrimitiveType getOutputPrimitiveType() {
return Interval;
}
@Override
public void encode(Type type, ByteBuf buffer, Object val, Context context) throws IOException {
if (val == null) {
buffer.writeInt(-1);
}
else {
Interval interval = (Interval) val;
buffer.writeInt(16);
buffer.writeLong(interval.getRawTime());
buffer.writeInt(interval.getRawDays());
buffer.writeInt(interval.getRawMonths());
}
}
@Override
public int length(Type type, Object val, Context context) throws IOException {
return val == null ? 4 : 20;
}
}
static class TxtDecoder extends TextDecoder {
@Override
public PrimitiveType getInputPrimitiveType() {
return Interval;
}
@Override
public Class<?> getOutputType() {
return Interval.class;
}
@Override
public Interval decode(Type type, Short typeLength, Integer typeModifier, CharSequence buffer, Context context) throws IOException {
return new Interval(buffer.toString());
}
}
static class TxtEncoder extends TextEncoder {
@Override
public Class<?> getInputType() {
return Interval.class;
}
@Override
public PrimitiveType getOutputPrimitiveType() {
return Interval;
}
@Override
public void encode(Type type, StringBuilder buffer, Object val, Context context) throws IOException {
Interval ival = (Interval) val;
buffer.
append("@ ").
append(ival.getYears()).append(" years ").
append(ival.getMonths()).append(" months ").
append(ival.getDays()).append(" days ").
append(ival.getHours()).append(" hours ").
append(ival.getMinutes()).append(" minutes ").
append(format("%f", ival.getSeconds())).append(" seconds");
}
}
}