/*
* 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.nifi.controller.repository;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Path;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Pattern;
import org.apache.nifi.controller.queue.QueueSize;
import org.apache.nifi.flowfile.FlowFile;
import org.apache.nifi.processor.FlowFileFilter;
import org.apache.nifi.processor.ProcessSession;
import org.apache.nifi.processor.ProcessSessionFactory;
import org.apache.nifi.processor.Relationship;
import org.apache.nifi.processor.io.InputStreamCallback;
import org.apache.nifi.processor.io.OutputStreamCallback;
import org.apache.nifi.processor.io.StreamCallback;
import org.apache.nifi.provenance.ProvenanceReporter;
public class BatchingSessionFactory implements ProcessSessionFactory {
private final HighThroughputSession highThroughputSession;
public BatchingSessionFactory(final StandardProcessSession standardProcessSession) {
highThroughputSession = new HighThroughputSession(standardProcessSession);
}
@Override
public ProcessSession createSession() {
return highThroughputSession;
}
private class HighThroughputSession implements ProcessSession {
private final StandardProcessSession session;
public HighThroughputSession(final StandardProcessSession session) {
this.session = session;
}
@Override
public void commit() {
session.checkpoint();
}
@Override
public void rollback() {
session.rollback();
}
@Override
public void rollback(boolean penalize) {
session.rollback(penalize);
}
@Override
public void migrate(ProcessSession newOwner, Collection<FlowFile> flowFiles) {
session.migrate(newOwner, flowFiles);
}
@Override
public void adjustCounter(String name, long delta, boolean immediate) {
session.adjustCounter(name, delta, immediate);
}
@Override
public FlowFile get() {
return session.get();
}
@Override
public List<FlowFile> get(int maxResults) {
return session.get(maxResults);
}
@Override
public List<FlowFile> get(FlowFileFilter filter) {
return session.get(filter);
}
@Override
public QueueSize getQueueSize() {
return session.getQueueSize();
}
@Override
public FlowFile create() {
return session.create();
}
@Override
public FlowFile create(FlowFile parent) {
return session.create(parent);
}
@Override
public FlowFile create(Collection<FlowFile> parents) {
return session.create(parents);
}
@Override
public FlowFile clone(FlowFile example) {
return session.clone(example);
}
@Override
public FlowFile clone(FlowFile example, long offset, long size) {
return session.clone(example, offset, size);
}
@Override
public FlowFile penalize(FlowFile flowFile) {
return session.penalize(flowFile);
}
@Override
public FlowFile putAttribute(FlowFile flowFile, String key, String value) {
return session.putAttribute(flowFile, key, value);
}
@Override
public FlowFile putAllAttributes(FlowFile flowFile, Map<String, String> attributes) {
return session.putAllAttributes(flowFile, attributes);
}
@Override
public FlowFile removeAttribute(FlowFile flowFile, String key) {
return session.removeAttribute(flowFile, key);
}
@Override
public FlowFile removeAllAttributes(FlowFile flowFile, Set<String> keys) {
return session.removeAllAttributes(flowFile, keys);
}
@Override
public FlowFile removeAllAttributes(FlowFile flowFile, Pattern keyPattern) {
return session.removeAllAttributes(flowFile, keyPattern);
}
@Override
public void transfer(FlowFile flowFile, Relationship relationship) {
session.transfer(flowFile, relationship);
}
@Override
public void transfer(FlowFile flowFile) {
session.transfer(flowFile);
}
@Override
public void transfer(Collection<FlowFile> flowFiles) {
session.transfer(flowFiles);
}
@Override
public void transfer(Collection<FlowFile> flowFiles, Relationship relationship) {
session.transfer(flowFiles, relationship);
}
@Override
public void remove(FlowFile flowFile) {
session.remove(flowFile);
}
@Override
public void remove(Collection<FlowFile> flowFiles) {
session.remove(flowFiles);
}
@Override
public void read(FlowFile source, InputStreamCallback reader) {
session.read(source, reader);
}
@Override
public void read(FlowFile source, boolean allowSessionStreamManagement, InputStreamCallback reader) {
session.read(source, allowSessionStreamManagement, reader);
}
@Override
public InputStream read(FlowFile flowFile) {
return session.read(flowFile);
}
@Override
public FlowFile merge(Collection<FlowFile> sources, FlowFile destination) {
return session.merge(sources, destination);
}
@Override
public FlowFile merge(Collection<FlowFile> sources, FlowFile destination, byte[] header, byte[] footer, byte[] demarcator) {
return session.merge(sources, destination, header, footer, demarcator);
}
@Override
public FlowFile write(FlowFile source, OutputStreamCallback writer) {
return session.write(source, writer);
}
@Override
public FlowFile write(FlowFile source, StreamCallback writer) {
return session.write(source, writer);
}
@Override
public FlowFile append(FlowFile source, OutputStreamCallback writer) {
return session.append(source, writer);
}
@Override
public FlowFile importFrom(Path source, boolean keepSourceFile, FlowFile destination) {
return session.importFrom(source, keepSourceFile, destination);
}
@Override
public FlowFile importFrom(InputStream source, FlowFile destination) {
return session.importFrom(source, destination);
}
@Override
public void exportTo(FlowFile flowFile, Path destination, boolean append) {
session.exportTo(flowFile, destination, append);
}
@Override
public void exportTo(FlowFile flowFile, OutputStream destination) {
session.exportTo(flowFile, destination);
}
@Override
public ProvenanceReporter getProvenanceReporter() {
return session.getProvenanceReporter();
}
@Override
public OutputStream write(final FlowFile source) {
return session.write(source);
}
}
}