org.jopendocument.util.io.DataInputStream Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jOpenDocument Show documentation
Show all versions of jOpenDocument Show documentation
jOpenDocument is a free library for developers looking to use
Open Document files without OpenOffice.org.
The newest version!
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2008-2013 jOpenDocument, by ILM Informatique. All rights reserved.
*
* The contents of this file are subject to the terms of the GNU
* General Public License Version 3 only ("GPL").
* You may not use this file except in compliance with the License.
* You can obtain a copy of the License at http://www.gnu.org/licenses/gpl-3.0.html
* See the License for the specific language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each file.
*
*/
package org.jopendocument.util.io;
import java.io.EOFException;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
public class DataInputStream extends FilterInputStream {
private Boolean littleEndian;
public DataInputStream(final InputStream in) {
this(in, null);
}
public DataInputStream(final InputStream in, final Boolean littleEndian) {
super(in);
this.littleEndian = littleEndian;
}
public final void setLittleEndian(Boolean littleEndian) {
this.littleEndian = littleEndian;
}
public final int readInt() throws IOException {
return this.readInt(this.littleEndian);
}
public int readInt(final boolean littleEndian) throws IOException {
final int ch1 = this.in.read();
final int ch2 = this.in.read();
final int ch3 = this.in.read();
final int ch4 = this.in.read();
if ((ch1 | ch2 | ch3 | ch4) < 0)
throw new EOFException();
if (littleEndian)
return (ch4 << 24) + (ch3 << 16) + (ch2 << 8) + ch1;
else
return (ch1 << 24) + (ch2 << 16) + (ch3 << 8) + ch4;
}
public final short readShort() throws IOException {
return this.readShort(this.littleEndian);
}
public short readShort(final boolean littleEndian) throws IOException {
final int ch1 = this.in.read();
final int ch2 = this.in.read();
if ((ch1 | ch2) < 0)
throw new EOFException();
return (short) (littleEndian ? (ch2 << 8) + ch1 : (ch1 << 8) + ch2);
}
}