1 files changed, 73 insertions, 0 deletions
diff --git a/core/src/main/java/org/elasticsearch/ingest/processor/RemoveProcessor.java b/core/src/main/java/org/elasticsearch/ingest/processor/RemoveProcessor.java
new file mode 100644
index 0000000000..489822867c
--- /dev/null
+++ b/core/src/main/java/org/elasticsearch/ingest/processor/RemoveProcessor.java
@@ -0,0 +1,73 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch licenses this file to you 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 at
+ *
+ *    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 org.elasticsearch.ingest.processor;
+
+import org.elasticsearch.ingest.core.AbstractProcessor;
+import org.elasticsearch.ingest.core.AbstractProcessorFactory;
+import org.elasticsearch.ingest.core.IngestDocument;
+import org.elasticsearch.ingest.core.TemplateService;
+import org.elasticsearch.ingest.core.ConfigurationUtils;
+
+import java.util.Map;
+
+/**
+ * Processor that removes existing fields. Nothing happens if the field is not present.
+ */
+public class RemoveProcessor extends AbstractProcessor {
+
+    public static final String TYPE = "remove";
+
+    private final TemplateService.Template field;
+
+    RemoveProcessor(String tag, TemplateService.Template field) {
+        super(tag);
+        this.field = field;
+    }
+
+    public TemplateService.Template getField() {
+        return field;
+    }
+
+    @Override
+    public void execute(IngestDocument document) {
+        document.removeField(field);
+    }
+
+    @Override
+    public String getType() {
+        return TYPE;
+    }
+
+    public static class Factory extends AbstractProcessorFactory<RemoveProcessor> {
+
+        private final TemplateService templateService;
+
+        public Factory(TemplateService templateService) {
+            this.templateService = templateService;
+        }
+
+        @Override
+        public RemoveProcessor doCreate(String processorTag, Map<String, Object> config) throws Exception {
+            String field = ConfigurationUtils.readStringProperty(TYPE, processorTag, config, "field");
+            return new RemoveProcessor(processorTag, templateService.compile(field));
+        }
+    }
+}
+