| /******************************************************************************* |
| * Copyright (c) 2005 The Regents of the University of California. |
| * This material was produced under U.S. Government contract W-7405-ENG-36 |
| * for Los Alamos National Laboratory, which is operated by the University |
| * of California for the U.S. Department of Energy. The U.S. Government has |
| * rights to use, reproduce, and distribute this software. NEITHER THE |
| * GOVERNMENT NOR THE UNIVERSITY MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR |
| * ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE. If software is modified |
| * to produce derivative works, such modified software should be clearly marked, |
| * so as not to confuse it with the version available from LANL. |
| * |
| * Additionally, this program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * LA-CC 04-115 |
| *******************************************************************************/ |
| package org.eclipse.ptp.debug.internal.core.aif; |
| |
| import java.nio.BufferUnderflowException; |
| import java.nio.ByteBuffer; |
| import org.eclipse.ptp.debug.core.aif.AIFException; |
| import org.eclipse.ptp.debug.core.aif.IAIFTypeFloat; |
| import org.eclipse.ptp.debug.core.aif.IAIFValueFloat; |
| import org.eclipse.ptp.debug.core.aif.AIFFactory.SimpleByteBuffer; |
| |
| /** |
| * @author Clement chu |
| * |
| */ |
| public class AIFValueFloat extends ValueParent implements IAIFValueFloat { |
| ByteBuffer byteBuffer; |
| |
| public AIFValueFloat(IAIFTypeFloat type, SimpleByteBuffer buffer) { |
| super(type); |
| parse(buffer); |
| } |
| protected void parse(SimpleByteBuffer buffer) { |
| byte[] dst = new byte[type.sizeof()]; |
| for (int i=0; i<dst.length; i++) { |
| dst[i] = buffer.get(); |
| } |
| byteBuffer = ByteBuffer.wrap(dst, 0, dst.length); |
| size = type.sizeof(); |
| } |
| public String getValueString() throws AIFException { |
| if (result == null) { |
| result = getString(); |
| } |
| return result; |
| } |
| private String getString() throws AIFException { |
| if (isFloat()) { |
| return String.valueOf(floatValue()); |
| } else if (isDouble()) { |
| return String.valueOf(doubleValue()); |
| } else { |
| return new String(byteBuffer.array()); |
| } |
| } |
| public float floatValue() throws AIFException { |
| try { |
| return byteBuffer.getFloat(); |
| } catch (BufferUnderflowException e) { |
| return 0; |
| } finally { |
| byteBuffer.rewind(); |
| } |
| } |
| public double doubleValue() throws AIFException { |
| try { |
| return byteBuffer.getDouble(); |
| } catch (BufferUnderflowException e) { |
| return 0; |
| } finally { |
| byteBuffer.rewind(); |
| } |
| } |
| |
| public boolean isDouble() { |
| return (type.sizeof() == 8); |
| } |
| public boolean isFloat() { |
| return (type.sizeof() == 4); |
| } |
| /* |
| public double doubleValue() throws PCDIException { |
| double result = 0; |
| String valueString = getValueString(); |
| if (isNaN(valueString)) |
| result = Double.NaN; |
| else if (isNegativeInfinity(valueString)) |
| result = Double.NEGATIVE_INFINITY; |
| else if (isPositiveInfinity(valueString)) |
| result = Double.POSITIVE_INFINITY; |
| else { |
| try { |
| result = Double.parseDouble(valueString); |
| } catch (NumberFormatException e) { |
| } |
| } |
| return result; |
| } |
| public float floatValue() throws PCDIException { |
| float result = 0; |
| String valueString = getValueString(); |
| if (isNaN(valueString)) |
| result = Float.NaN; |
| else if (isNegativeInfinity(valueString)) |
| result = Float.NEGATIVE_INFINITY; |
| else if (isPositiveInfinity(valueString)) |
| result = Float.POSITIVE_INFINITY; |
| else { |
| try { |
| result = Float.parseFloat(valueString); |
| } catch (NumberFormatException e) { |
| } |
| } |
| return result; |
| } |
| private boolean isPositiveInfinity(String valueString) { |
| return (valueString != null) ? valueString.indexOf("inf") != -1 : false; |
| } |
| private boolean isNegativeInfinity(String valueString) { |
| return (valueString != null) ? valueString.indexOf("-inf") != -1 : false; |
| } |
| private boolean isNaN(String valueString) { |
| return (valueString != null) ? valueString.indexOf("nan") != -1 : false; |
| } |
| */ |
| } |