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Code Issues Releases Wiki Activity

inheritance instead of aggregation

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This commit is contained in:
Nikolay Pultsin 2011-04-11 22:11:55 +01:00
parent f16565bfb1
commit d25952b58c
1 changed files with 6 additions and 32 deletions
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38
src/org/geometerplus/zlibrary/core/util/SliceInputStream.java
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@ -22,51 +22,25 @@ package org.geometerplus.zlibrary.core.util;
import java.io.IOException;
import java.io.InputStream;
public class SliceInputStream extends InputStream {
private final ZLInputStreamWithOffset myBase;
public class SliceInputStream extends ZLInputStreamWithOffset {
private final int myStart;
private final int myLength;
public SliceInputStream(InputStream base, int start, int length) throws IOException {
myBase = new ZLInputStreamWithOffset(base);
myBase.skip(start);
super(base);
super.skip(start);
myStart = start;
myLength = length;
}
@Override
public int available() throws IOException {
return Math.min(myBase.available(), Math.max(myStart + myLength - myBase.offset(), 0));
}
@Override
public long skip(long n) throws IOException {
return myBase.skip(n);
}
@Override
public int read() throws IOException {
return myBase.read();
}
@Override
public void close() throws IOException {
myBase.close();
}
@Override
public int read(byte[] b, int off, int len) throws IOException {
return myBase.read(b, off, len);
}
@Override
public int read(byte[] b) throws IOException {
return myBase.read(b);
return Math.min(super.available(), Math.max(myStart + myLength - super.offset(), 0));
}
@Override
public void reset() throws IOException {
myBase.reset();
myBase.skip(myStart);
super.reset();
super.skip(myStart);
}
}