/* * ValueGetter.java *  * PostGIS extension for PostgreSQL JDBC driver - Binary Parser *  * (C) 2005 Markus Schaber, markus.schaber@logix-tt.com *  * This library is free software; you can redistribute it and/or modify it under * the terms of the GNU Lesser General Public License as published by the Free * Software Foundation, either version 2.1 of the License. *  * This library is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more * details. *  * You should have received a copy of the GNU Lesser General Public License * along with this library; if not, write to the Free Software Foundation, Inc., * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA or visit the web at * http://www.gnu.org. *  * $Id: ValueSetter.java 1774 2005-06-28 08:12:45Z mschaber $ */package org.postgis.binary;public abstract class ValueSetter {    ByteSetter data;    int position=0;    public final byte endian;    public ValueSetter(ByteSetter data, byte endian) {        this.data = data;        this.endian = endian;    }    /**     * Get a byte, should be equal for all endians     */    public void setByte(byte value) {        data.set(value, position);        position += 1;    }    public void setInt(int value) {        setInt(value, position);        position += 4;    }    public void setLong(long value) {        setLong(value, position);        position += 8;    }    /** Get a 32-Bit integer */    protected abstract void setInt(int value, int index);    /**     * Get a long value. This is not needed directly, but as a nice side-effect     * from GetDouble.     */    protected abstract void setLong(long data, int index);    /**     * Get a double.     */    public void setDouble(double data) {        long bitrep = Double.doubleToLongBits(data);        setLong(bitrep);    }    public String toString() {        String name = getClass().getName();        int pointpos = name.lastIndexOf('.');        String klsName = name.substring(pointpos+1);        return klsName+"('"+(data==null?"NULL":data.toString()+"')");    }        public static class XDR extends ValueSetter {        public static final byte NUMBER = 0;        public XDR(ByteSetter data) {            super(data, NUMBER);        }        protected void setInt(int value, int index) {            data.set((byte) (value >>> 24), index);            data.set((byte) (value >>> 16), index + 1);            data.set((byte) (value >>> 8), index + 2);            data.set((byte) value, index + 3);        }        protected void setLong(long value, int index) {            data.set((byte) (value >>> 56), index);            data.set((byte) (value >>> 48), index + 1);            data.set((byte) (value >>> 40), index + 2);            data.set((byte) (value >>> 32), index + 3);            data.set((byte) (value >>> 24), index + 4);            data.set((byte) (value >>> 16), index + 5);            data.set((byte) (value >>> 8), index + 6);            data.set((byte) value, index + 7);        }    }    public static class NDR extends ValueSetter {        public static final byte NUMBER = 1;        public NDR(ByteSetter data) {            super(data, NUMBER);        }        protected void setInt(int value, int index) {            data.set((byte) (value >>> 24), index + 3);            data.set((byte) (value >>> 16), index + 2);            data.set((byte) (value >>> 8), index + 1);            data.set((byte) value, index);        }        protected void setLong(long value, int index) {            data.set((byte) (value >>> 56), index + 7);            data.set((byte) (value >>> 48), index + 6);            data.set((byte) (value >>> 40), index + 5);            data.set((byte) (value >>> 32), index + 4);            data.set((byte) (value >>> 24), index + 3);            data.set((byte) (value >>> 16), index + 2);            data.set((byte) (value >>> 8), index + 1);            data.set((byte) value, index);        }    }}