HDFS-16092. Avoid creating LayoutFlags redundant objects (#3150)
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@ -31,14 +31,15 @@
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*/
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@InterfaceAudience.Private
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public class LayoutFlags {
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/**
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* Load a LayoutFlags object from a stream.
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* Read next int from given input stream. If the value is not 0 (unsupported
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* feature flags), throw appropriate IOException.
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*
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* @param in The stream to read from.
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* @throws IOException
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* @throws IOException If next byte read from given stream is not 0.
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*/
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public static LayoutFlags read(DataInputStream in)
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throws IOException {
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public static void read(DataInputStream in) throws IOException {
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int length = in.readInt();
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if (length < 0) {
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throw new IOException("The length of the feature flag section " +
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@ -47,7 +48,6 @@ public static LayoutFlags read(DataInputStream in)
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throw new IOException("Found feature flags which we can't handle. " +
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"Please upgrade your software.");
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}
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return new LayoutFlags();
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}
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private LayoutFlags() {
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