/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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.apache.flume.interceptor;
import java.util.List;
import java.util.Map;
import org.apache.flume.Context;
import org.apache.flume.Event;
/**
* Simple interceptor that removes a header called "Bad-Words" from all events.
*/
public class CensoringInterceptor implements Interceptor {
private CensoringInterceptor() {
// no-op
}
@Override
public void initialize() {
// no-op
}
@Override
public Event intercept(Event event) {
Map<String, String> headers = event.getHeaders();
if (headers.containsKey("Bad-Words")) {
headers.remove("Bad-Words");
}
return event;
}
@Override
public List<Event> intercept(List<Event> events) {
for (Event e : events) {
intercept(e);
}
return events;
}
@Override
public void close() {
// no-op
}
public static class Builder implements Interceptor.Builder {
@Override
public Interceptor build() {
return new CensoringInterceptor();
}
@Override
public void configure(Context context) {
// no-op
}
}
}