-
Notifications
You must be signed in to change notification settings - Fork 656
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
13 changed files
with
260 additions
and
68 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
126 changes: 126 additions & 0 deletions
126
HMCLCore/src/main/java/org/jackhuang/hmcl/util/io/ByteArrayOutputBuffer.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| package org.jackhuang.hmcl.util.io; | ||
|
|
||
| import java.io.ByteArrayInputStream; | ||
| import java.io.ByteArrayOutputStream; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.nio.charset.Charset; | ||
| import java.util.Arrays; | ||
|
|
||
| /** | ||
| * @author Glavo | ||
| */ | ||
| public final class ByteArrayOutputBuffer extends ByteArrayOutputStream { | ||
|
|
||
| private static final int MAX_ARRAY_SIZE = Integer.MAX_VALUE - 8; | ||
|
|
||
| public static int getRecommendedSize(long size) { | ||
| if (size < 0) | ||
| return IOUtils.DEFAULT_BUFFER_SIZE; | ||
| else if (size >= MAX_ARRAY_SIZE) | ||
| return MAX_ARRAY_SIZE; | ||
| else | ||
| return Math.max(32, (int) size); | ||
| } | ||
|
|
||
| public ByteArrayOutputBuffer() { | ||
| this(IOUtils.DEFAULT_BUFFER_SIZE); | ||
| } | ||
|
|
||
| public ByteArrayOutputBuffer(int size) { | ||
| super(size); | ||
| } | ||
|
|
||
| private void prepare(int next) { | ||
| assert next > 0; | ||
|
|
||
| int currentCapacity = buf.length; | ||
| int currentSize = this.count; | ||
| int minCapacity = currentSize + next; | ||
| if (minCapacity < 0 || minCapacity > MAX_ARRAY_SIZE) { | ||
| throw new OutOfMemoryError(); | ||
| } | ||
|
|
||
| if (currentCapacity >= minCapacity) { | ||
| return; | ||
| } | ||
|
|
||
| int nextCapacity = currentCapacity < MAX_ARRAY_SIZE / 2 ? Math.max(minCapacity, currentSize * 2) : MAX_ARRAY_SIZE; | ||
| buf = Arrays.copyOf(buf, nextCapacity); | ||
| } | ||
|
|
||
| public byte[] getBuffer() { | ||
| return this.buf; | ||
| } | ||
|
|
||
| public int read(InputStream input) throws IOException { | ||
| int available = input.available(); | ||
| if (available > 0) { | ||
| prepare(available); | ||
| } | ||
|
|
||
| int maxRead = buf.length - count; | ||
| if (maxRead == 0) { | ||
| int b = input.read(); | ||
| if (b < 0) { | ||
| return -1; | ||
| } else { | ||
| write(b); | ||
| return 1; | ||
| } | ||
| } | ||
|
|
||
| int n = input.read(buf, count, maxRead); | ||
| if (n > 0) { | ||
| count += n; | ||
| } | ||
| return n; | ||
| } | ||
|
|
||
| public void copyFrom(InputStream input) throws IOException { | ||
| int available = input.available(); | ||
| if (available > 0) { | ||
| prepare(available); | ||
| } else if (count == buf.length) { | ||
| prepare(1); | ||
| } | ||
|
|
||
| while (true) { | ||
| int n = input.read(buf, count, buf.length - count); | ||
| if (n <= 0) { | ||
| break; | ||
| } | ||
|
|
||
| count += n; | ||
| if (count == buf.length) { | ||
| if (available > 0) { | ||
| int b = input.read(); | ||
| if (b < 0) { | ||
| break; | ||
| } else { | ||
| write(b); | ||
| } | ||
| } else { | ||
| prepare(1); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public byte[] toByteArrayWithoutCopy() { | ||
| if (buf.length == count) { | ||
| return buf; | ||
| } else { | ||
| return Arrays.copyOf(buf, count); | ||
| } | ||
| } | ||
|
|
||
| public InputStream toInputStream() { | ||
| return new ByteArrayInputStream(this.buf, 0, this.count); | ||
| } | ||
|
|
||
| @SuppressWarnings("Since15") | ||
| public String toString(Charset charset) { | ||
| return new String(buf, 0, count, charset); | ||
| } | ||
| } |
Oops, something went wrong.