a67cdaeb48
* Fix broken javadoc tags * Remove unnecessary public modifier * Reorder method * Make releaseAfterTransfer immutable
64 lines
1.8 KiB
Java
64 lines
1.8 KiB
Java
package org.jboss.netty.channel;
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import java.io.IOException;
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import java.nio.channels.FileChannel;
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import java.nio.channels.WritableByteChannel;
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import org.jboss.netty.logging.InternalLogger;
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import org.jboss.netty.logging.InternalLoggerFactory;
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public class DefaultFileRegion implements FileRegion {
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private static final InternalLogger logger = InternalLoggerFactory.getInstance(DefaultFileRegion.class);
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private final FileChannel file;
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private final long position;
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private final long count;
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private final boolean releaseAfterTransfer;
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public DefaultFileRegion(FileChannel file, long position, long count) {
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this(file, position, count, false);
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}
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public DefaultFileRegion(FileChannel file, long position, long count, boolean releaseAfterTransfer) {
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this.file = file;
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this.position = position;
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this.count = count;
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this.releaseAfterTransfer = releaseAfterTransfer;
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}
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public long getPosition() {
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return position;
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}
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public long getCount() {
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return count;
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}
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public boolean releaseAfterTransfer() {
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return releaseAfterTransfer;
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}
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public long transferTo(WritableByteChannel target, long position) throws IOException {
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long count = this.count - position;
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if (count < 0 || position < 0) {
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throw new IllegalArgumentException(
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"position out of range: " + position +
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" (expected: 0 - " + (this.count - 1) + ")");
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}
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if (count == 0) {
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return 0L;
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}
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return file.transferTo(this.position + position, count, target);
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}
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public void releaseExternalResources() {
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try {
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file.close();
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} catch (IOException e) {
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logger.warn("Failed to close a file.", e);
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}
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}
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}
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