added file remove operator
diff --git a/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FileRemoveOperatorDescriptor.java b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FileRemoveOperatorDescriptor.java
new file mode 100644
index 0000000..0df15e9
--- /dev/null
+++ b/hyracks/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/file/FileRemoveOperatorDescriptor.java
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2009-2013 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package edu.uci.ics.hyracks.dataflow.std.file;
+
+import java.io.File;
+
+import edu.uci.ics.hyracks.api.comm.IFrameWriter;
+import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
+import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
+import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
+import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+import edu.uci.ics.hyracks.api.job.IOperatorDescriptorRegistry;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractOperatorNodePushable;
+import edu.uci.ics.hyracks.dataflow.std.base.AbstractSingleActivityOperatorDescriptor;
+
+public class FileRemoveOperatorDescriptor extends AbstractSingleActivityOperatorDescriptor {
+
+ private final IFileSplitProvider fileSplitProvider;
+
+ public FileRemoveOperatorDescriptor(IOperatorDescriptorRegistry spec, IFileSplitProvider fileSplitProvder) {
+ super(spec, 0, 0);
+ this.fileSplitProvider = fileSplitProvder;
+ }
+
+ private static final long serialVersionUID = 1L;
+
+ @Override
+ public IOperatorNodePushable createPushRuntime(IHyracksTaskContext ctx,
+ IRecordDescriptorProvider recordDescProvider, int partition, int nPartitions) throws HyracksDataException {
+ final FileSplit split = fileSplitProvider.getFileSplits()[partition];
+ return new AbstractOperatorNodePushable() {
+
+ @Override
+ public void setOutputFrameWriter(int index, IFrameWriter writer, RecordDescriptor recordDesc) {
+ throw new IllegalStateException();
+ }
+
+ @Override
+ public void initialize() throws HyracksDataException {
+ File f = split.getLocalFile().getFile();
+ delete(f);
+ }
+
+ private void delete(File root) {
+ if (root.isDirectory()) {
+ for (File f : root.listFiles()) {
+ if (f.isDirectory()) {
+ delete(f);
+ } else {
+ f.delete();
+ }
+ }
+ }
+ root.delete();
+ }
+
+ @Override
+ public IFrameWriter getInputFrameWriter(int index) {
+ throw new IllegalStateException();
+ }
+
+ @Override
+ public int getInputArity() {
+ return 0;
+ }
+
+ @Override
+ public void deinitialize() throws HyracksDataException {
+ }
+ };
+ }
+
+}