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ExpansionServiceOptions.java
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ExpansionServiceOptions.java
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/*
* 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.beam.sdk.expansion.service;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import org.apache.beam.sdk.expansion.service.JavaClassLookupTransformProvider.AllowList;
import org.apache.beam.sdk.options.Default;
import org.apache.beam.sdk.options.DefaultValueFactory;
import org.apache.beam.sdk.options.Description;
import org.apache.beam.sdk.options.PipelineOptions;
/** Options used to configure the {@link ExpansionService}. */
public interface ExpansionServiceOptions extends PipelineOptions {
@Description("Allow list for Java class based transform expansion")
@Default.InstanceFactory(JavaClassLookupAllowListFactory.class)
AllowList getJavaClassLookupAllowlist();
void setJavaClassLookupAllowlist(AllowList file);
@Description("Allow list file for Java class based transform expansion")
String getJavaClassLookupAllowlistFile();
void setJavaClassLookupAllowlistFile(String file);
/**
* Loads the allow list from {@link #getJavaClassLookupAllowlistFile}, defaulting to an empty
* {@link JavaClassLookupTransformProvider.AllowList}.
*/
class JavaClassLookupAllowListFactory implements DefaultValueFactory<AllowList> {
@Override
public AllowList create(PipelineOptions options) {
String allowListFile =
options.as(ExpansionServiceOptions.class).getJavaClassLookupAllowlistFile();
if (allowListFile != null) {
ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
File allowListFileObj = new File(allowListFile);
if (!allowListFileObj.exists()) {
throw new IllegalArgumentException(
"Allow list file " + allowListFile + " does not exist");
}
try {
return mapper.readValue(allowListFileObj, AllowList.class);
} catch (IOException e) {
throw new IllegalArgumentException(
"Could not load the provided allowlist file " + allowListFile, e);
}
}
// By default produces an empty allow-list.
return new AutoValue_JavaClassLookupTransformProvider_AllowList(
JavaClassLookupTransformProvider.ALLOW_LIST_VERSION, new ArrayList<>());
}
}
}