| /* ==================================================================== |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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.apache.poi.util; |
| |
| import java.io.FilterOutputStream; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| public final class LittleEndianOutputStream extends FilterOutputStream implements LittleEndianOutput { |
| public LittleEndianOutputStream(OutputStream out) { |
| super(out); |
| } |
| |
| @Override |
| public void writeByte(int v) { |
| try { |
| out.write(v); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @Override |
| public void writeDouble(double v) { |
| writeLong(Double.doubleToLongBits(v)); |
| } |
| |
| @Override |
| public void writeInt(int v) { |
| int b3 = (v >>> 24) & 0xFF; |
| int b2 = (v >>> 16) & 0xFF; |
| int b1 = (v >>> 8) & 0xFF; |
| int b0 = (v) & 0xFF; |
| try { |
| out.write(b0); |
| out.write(b1); |
| out.write(b2); |
| out.write(b3); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @Override |
| public void writeLong(long v) { |
| writeInt((int)(v/* >> 0*/)); |
| writeInt((int)(v >> 32)); |
| } |
| |
| @Override |
| public void writeShort(int v) { |
| int b1 = (v >>> 8) & 0xFF; |
| int b0 = (v) & 0xFF; |
| try { |
| out.write(b0); |
| out.write(b1); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| @Override |
| public void write(byte[] b) { |
| // suppress IOException for interface method |
| try { |
| super.write(b); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| @Override |
| public void write(byte[] b, int off, int len) { |
| // suppress IOException for interface method |
| try { |
| super.write(b, off, len); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| |
| /** |
| * Put unsigned int into output stream |
| * |
| * @param value |
| * the int (32-bit) value |
| */ |
| public void writeUInt( long value ) { |
| try { |
| out.write( (byte) ( ( value ) & 0xFF ) ); |
| out.write( (byte) ( ( value >>> 8 ) & 0xFF ) ); |
| out.write( (byte) ( ( value >>> 16 ) & 0xFF ) ); |
| out.write( (byte) ( ( value >>> 24 ) & 0xFF ) ); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /** |
| * Put unsigned short into output stream |
| * |
| * @param value |
| * the unsigned short (16-bit) value |
| */ |
| public void putUShort( int value ) { |
| try { |
| out.write( (byte) ( ( value ) & 0xFF ) ); |
| out.write( (byte) ( ( value >>> 8 ) & 0xFF ) ); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |