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Merge pull request #22 from FlintMC/bugfix-and-annotation-processor-e…
…xtension Bugfix and annotation processor extension
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123 changes: 123 additions & 0 deletions
123
src/main/java/net/flintmc/gradle/util/resource/MultiResourceInputStream.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| /* | ||
| * FlintMC | ||
| * Copyright (C) 2020-2021 LabyMedia GmbH and contributors | ||
| * | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 3 of the License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public License | ||
| * along with this program; if not, write to the Free Software Foundation, | ||
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | ||
| */ | ||
|
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| package net.flintmc.gradle.util.resource; | ||
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| import org.jetbrains.annotations.NotNull; | ||
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| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.util.Arrays; | ||
| import java.util.LinkedHashSet; | ||
| import java.util.Set; | ||
|
|
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| /** | ||
| * Input stream which when closed delegates the closing to its delegate stream and other closeables. | ||
| */ | ||
| public class MultiResourceInputStream extends InputStream { | ||
| private final Set<AutoCloseable> closeables; | ||
| private final InputStream delegate; | ||
|
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| /** | ||
| * Constructs a new {@link MultiResourceInputStream} a delegate and other closeables. | ||
| * | ||
| * @param delegate The delegate to delegate stream operations to | ||
| * @param closeables The other closeables to close when the delegate has been closed | ||
| */ | ||
| public MultiResourceInputStream(InputStream delegate, AutoCloseable... closeables) { | ||
| this.closeables = new LinkedHashSet<>(Arrays.asList(closeables)); | ||
| this.delegate = delegate; | ||
| } | ||
|
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| @Override | ||
| public void close() throws IOException { | ||
| IOException ex = null; | ||
|
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| try { | ||
| delegate.close(); | ||
| } catch(IOException e) { | ||
| ex = e; | ||
| } | ||
|
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| // Try to close as many closeables no matter what | ||
| for(AutoCloseable closeable : closeables) { | ||
| try { | ||
| closeable.close(); | ||
| } catch(Exception e) { | ||
| if(e instanceof IOException && ex == null) { | ||
| // First exception, and its an I/O one, use it directly | ||
| ex = (IOException) e; | ||
| } else { | ||
| if(ex == null) { | ||
| // First exception, but not an I/O exception, wrap it | ||
| ex = new IOException("Exception while closing MultiResourceInputStream", e); | ||
| } else { | ||
| // Earlier an exception occurred already, suppress this one | ||
| ex.addSuppressed(e); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| if(ex != null) { | ||
| // At least on exception was thrown | ||
| throw ex; | ||
| } | ||
| } | ||
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| @Override | ||
| public int read() throws IOException { | ||
| return delegate.read(); | ||
| } | ||
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| @Override | ||
| public int read(@NotNull byte[] b) throws IOException { | ||
| return delegate.read(b); | ||
| } | ||
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| @Override | ||
| public int read(@NotNull byte[] b, int off, int len) throws IOException { | ||
| return delegate.read(b, off, len); | ||
| } | ||
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| @Override | ||
| public long skip(long n) throws IOException { | ||
| return delegate.skip(n); | ||
| } | ||
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| @Override | ||
| public int available() throws IOException { | ||
| return delegate.available(); | ||
| } | ||
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| @Override | ||
| public synchronized void mark(int readlimit) { | ||
| delegate.mark(readlimit); | ||
| } | ||
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| @Override | ||
| public synchronized void reset() throws IOException { | ||
| delegate.reset(); | ||
| } | ||
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| @Override | ||
| public boolean markSupported() { | ||
| return delegate.markSupported(); | ||
| } | ||
| } |
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