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Diffstat (limited to 'vespajlib/src/main/java/com/yahoo/io/reader/NamedReader.java')
-rw-r--r--vespajlib/src/main/java/com/yahoo/io/reader/NamedReader.java60
1 files changed, 60 insertions, 0 deletions
diff --git a/vespajlib/src/main/java/com/yahoo/io/reader/NamedReader.java b/vespajlib/src/main/java/com/yahoo/io/reader/NamedReader.java
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+++ b/vespajlib/src/main/java/com/yahoo/io/reader/NamedReader.java
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+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.io.reader;
+
+import com.google.common.annotations.Beta;
+
+import java.io.IOException;
+import java.io.Reader;
+import java.util.List;
+
+/**
+ * A reader with a name. All reader methods are delegated to the wrapped reader.
+ *
+ * @author <a href="mailto:bratseth@yahoo-inc.com">Jon Bratseth</a>
+ */
+@Beta
+public class NamedReader extends Reader {
+
+ private final String name;
+ private final Reader reader;
+
+ public NamedReader(String name, Reader reader) {
+ this.name = name;
+ this.reader = reader;
+ }
+
+ public String getName() { return name; }
+
+ public Reader getReader() { return reader; }
+
+ /** Returns the name */
+ public @Override String toString() {
+ return name;
+ }
+
+ // The rest is reader method implementations which delegates to the wrapped reader
+ public @Override int read(java.nio.CharBuffer charBuffer) throws java.io.IOException { return reader.read(charBuffer); }
+ public @Override int read() throws java.io.IOException { return reader.read(); }
+ public @Override int read(char[] chars) throws java.io.IOException { return reader.read(chars); }
+ public @Override int read(char[] chars, int i, int i1) throws java.io.IOException { return reader.read(chars,i,i1); }
+ public @Override long skip(long l) throws java.io.IOException { return reader.skip(l); }
+ public @Override boolean ready() throws java.io.IOException { return reader.ready(); }
+ public @Override boolean markSupported() { return reader.markSupported(); }
+ public @Override void mark(int i) throws java.io.IOException { reader.mark(i); }
+ public @Override void reset() throws java.io.IOException { reader.reset(); }
+ public @Override void close() throws java.io.IOException { reader.close(); }
+
+ /** Convenience method for closing a list of readers. Does nothing if the given reader list is null. */
+ public static void closeAll(List<NamedReader> readers) {
+ if (readers==null) return;
+ for (Reader reader : readers) {
+ try {
+ reader.close();
+ }
+ catch (IOException e) {
+ // Nothing to do about it
+ }
+ }
+ }
+
+} \ No newline at end of file