Support ClassLoader context in Grep and DeleteMany

shell/src/main/java/org/apache/accumulo/shell/commands/DeleteManyCommand.java

@@ -45,11 +45,20 @@ public int execute(final String fullCommand, final CommandLine cl, final Shell s
     final org.apache.accumulo.core.util.interpret.ScanInterpreter interpreter =
         getInterpreter(cl, tableName, shellState);
 
+    String classLoaderContext = null;
+    if (cl.hasOption(contextOpt.getOpt())) {
+      classLoaderContext = cl.getOptionValue(contextOpt.getOpt());
+    }
+
     // handle first argument, if present, the authorizations list to
     // scan with
     final Authorizations auths = getAuths(cl, shellState);
     final Scanner scanner = shellState.getAccumuloClient().createScanner(tableName, auths);
 
+    if (classLoaderContext != null) {
+      scanner.setClassLoaderContext(classLoaderContext);
+    }
+
     scanner.addScanIterator(
         new IteratorSetting(Integer.MAX_VALUE, "NOVALUE", SortedKeyIterator.class));
 

shell/src/main/java/org/apache/accumulo/shell/commands/GrepCommand.java

@@ -80,6 +80,11 @@ public int execute(final String fullCommand, final CommandLine cl, final Shell s
         negate = true;
       }
 
+      String classLoaderContext = null;
+      if (cl.hasOption(contextOpt.getOpt())) {
+        classLoaderContext = cl.getOptionValue(contextOpt.getOpt());
+      }
+
       final Authorizations auths = getAuths(cl, shellState);
       final BatchScanner scanner =
           shellState.getAccumuloClient().createBatchScanner(tableName, auths, numThreads);
@@ -89,6 +94,10 @@ public int execute(final String fullCommand, final CommandLine cl, final Shell s
 
       scanner.setConsistencyLevel(getConsistency(cl));
 
+      if (classLoaderContext != null) {
+        scanner.setClassLoaderContext(classLoaderContext);
+      }
+
       setupSampling(tableName, cl, shellState, scanner);
       addScanIterators(shellState, cl, scanner, "");
 

shell/src/main/java/org/apache/accumulo/shell/commands/ScanCommand.java

@@ -68,7 +68,7 @@ public class ScanCommand extends Command {
   private Option optEndRowExclusive;
   private Option timeoutOption;
   private Option sampleOpt;
-  private Option contextOpt;
+  protected Option contextOpt;
   private Option executionHintsOpt;
   private Option scanServerOpt;