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Uuid.java
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Uuid.java
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/*
* Licensed to Elasticsearch B.V. under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch B.V. 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.logstash.plugins.filters;
import co.elastic.logstash.api.Configuration;
import co.elastic.logstash.api.Context;
import co.elastic.logstash.api.Event;
import co.elastic.logstash.api.LogstashPlugin;
import co.elastic.logstash.api.PluginConfigSpec;
import co.elastic.logstash.api.PluginHelper;
import co.elastic.logstash.api.Filter;
import co.elastic.logstash.api.FilterMatchListener;
import java.util.Arrays;
import java.util.Collection;
import java.util.UUID;
/**
* Java implementation of the "uuid" filter
* */
@LogstashPlugin(name = "java_uuid")
public class Uuid implements Filter {
public static final PluginConfigSpec<String> TARGET_CONFIG =
PluginConfigSpec.requiredStringSetting("target");
public static final PluginConfigSpec<Boolean> OVERWRITE_CONFIG =
PluginConfigSpec.booleanSetting("overwrite", false);
private String id;
private String target;
private boolean overwrite;
/**
* Required constructor.
*
* @param id Plugin id
* @param configuration Logstash Configuration
* @param context Logstash Context
*/
public Uuid(final String id, final Configuration configuration, final Context context) {
this.id = id;
this.target = configuration.get(TARGET_CONFIG);
this.overwrite = configuration.get(OVERWRITE_CONFIG);
}
@Override
public Collection<Event> filter(Collection<Event> events, final FilterMatchListener filterMatchListener) {
for (Event e : events) {
if (overwrite || e.getField(target) == null) {
e.setField(target, UUID.randomUUID().toString());
}
filterMatchListener.filterMatched(e);
}
return events;
}
@Override
public Collection<PluginConfigSpec<?>> configSchema() {
return PluginHelper.commonFilterSettings(Arrays.asList(TARGET_CONFIG, OVERWRITE_CONFIG));
}
@Override
public String getId() {
return id;
}
}