| /* |
| * Copyright 2009-2013 by The Regents of the University of California |
| * 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 from |
| * |
| * 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 edu.uci.ics.hyracks.algebricks.examples.piglet.compiler; |
| |
| import java.io.IOException; |
| import java.io.PrintStream; |
| |
| import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException; |
| import edu.uci.ics.hyracks.algebricks.data.IPrinter; |
| import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory; |
| import edu.uci.ics.hyracks.algebricks.data.IPrinterFactoryProvider; |
| import edu.uci.ics.hyracks.algebricks.data.impl.IntegerPrinterFactory; |
| import edu.uci.ics.hyracks.algebricks.data.utils.WriteValueTools; |
| import edu.uci.ics.hyracks.algebricks.examples.piglet.types.Type; |
| import edu.uci.ics.hyracks.data.std.primitive.FloatPointable; |
| import edu.uci.ics.hyracks.dataflow.common.data.marshalling.FloatSerializerDeserializer; |
| |
| public class PigletPrinterFactoryProvider implements IPrinterFactoryProvider { |
| |
| public static final PigletPrinterFactoryProvider INSTANCE = new PigletPrinterFactoryProvider(); |
| |
| private PigletPrinterFactoryProvider() { |
| } |
| |
| @Override |
| public IPrinterFactory getPrinterFactory(Object type) throws AlgebricksException { |
| Type t = (Type) type; |
| switch (t.getTag()) { |
| case INTEGER: |
| return IntegerPrinterFactory.INSTANCE; |
| case CHAR_ARRAY: |
| return CharArrayPrinterFactory.INSTANCE; |
| case FLOAT: |
| return FloatPrinterFactory.INSTANCE; |
| default: |
| throw new UnsupportedOperationException(); |
| |
| } |
| } |
| |
| public static class CharArrayPrinterFactory implements IPrinterFactory { |
| |
| private static final long serialVersionUID = 1L; |
| |
| public static final CharArrayPrinterFactory INSTANCE = new CharArrayPrinterFactory(); |
| |
| private CharArrayPrinterFactory() { |
| } |
| |
| @Override |
| public IPrinter createPrinter() { |
| return new IPrinter() { |
| @Override |
| public void init() throws AlgebricksException { |
| } |
| |
| @Override |
| public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException { |
| try { |
| WriteValueTools.writeUTF8String(b, s, l, ps); |
| } catch (IOException e) { |
| throw new AlgebricksException(e); |
| } |
| } |
| }; |
| } |
| } |
| |
| public static class FloatPrinterFactory implements IPrinterFactory { |
| |
| private static final long serialVersionUID = 1L; |
| |
| public static final FloatPrinterFactory INSTANCE = new FloatPrinterFactory(); |
| |
| private FloatPrinterFactory() { |
| } |
| |
| @Override |
| public IPrinter createPrinter() { |
| return new IPrinter() { |
| @Override |
| public void init() throws AlgebricksException { |
| } |
| |
| @Override |
| public void print(byte[] b, int s, int l, PrintStream ps) throws AlgebricksException { |
| ps.print(FloatPointable.getFloat(b, s)); |
| } |
| }; |
| } |
| } |
| |
| } |