goiri commented on a change in pull request #2327:
URL: https://github.com/apache/hadoop/pull/2327#discussion_r497835870
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File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/CallerContext.java
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@@ -109,11 +113,47 @@ public String toString() {
/** The caller context builder. */
public static final class Builder {
- private final String context;
+ private static final String KEY_VALUE_SEPARATOR = ":";
+ private final String fieldSeparator;
+ private final StringBuilder sb = new StringBuilder();
private byte[] signature;
public Builder(String context) {
- this.context = context;
+ this(context, new Configuration());
+ }
+
+ public Builder(String context, Configuration conf) {
+ if (isValid(context)) {
+ sb.append(context);
+ }
+ fieldSeparator = conf.get(HADOOP_CALLER_CONTEXT_SEPARATOR_KEY,
+ HADOOP_CALLER_CONTEXT_SEPARATOR_DEFAULT);
+ checkFieldSeparator(fieldSeparator);
+ }
+
+ /**
+ * Check whether the separator is legal.
+ * The illegal separators include '\t', '\n', '=', etc.
+ * Throw IllegalArgumentException if the separator is Illegal.
+ * @param separator the separator of fields.
+ */
+ private void checkFieldSeparator(String separator) {
+ if (separator.contains("\t") || separator.contains("\n")
Review comment:
I would define the list of illegal characters in an static list or check
and check if the separator is there.
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