TestStandardFlowFileRecord.java

/*
 * 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
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 */

package org.apache.nifi.controller.repository;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;

import java.util.HashMap;
import java.util.Map;
import java.util.UUID;

import org.junit.Test;

public class TestStandardFlowFileRecord {

    @Test
    public void testAttributeCopiedOnModification() {
        final FlowFileRecord original = new StandardFlowFileRecord.Builder()
            .addAttribute("uuid", UUID.randomUUID().toString())
            .addAttribute("abc", "xyz")
            .build();

        final FlowFileRecord addAttribute = new StandardFlowFileRecord.Builder()
            .fromFlowFile(original)
            .addAttribute("hello", "good-bye")
            .build();

        final Map<String, String> addAttributeMapCopy = new HashMap<>(addAttribute.getAttributes());

        assertEquals("good-bye", addAttribute.getAttributes().get("hello"));
        assertEquals("xyz", addAttribute.getAttributes().get("abc"));

        assertEquals("xyz", original.getAttributes().get("abc"));
        assertFalse(original.getAttributes().containsKey("hello"));

        final FlowFileRecord removeAttribute = new StandardFlowFileRecord.Builder()
            .fromFlowFile(addAttribute)
            .removeAttributes("hello")
            .build();

        assertEquals(original.getAttributes(), removeAttribute.getAttributes());
        assertEquals(addAttributeMapCopy, addAttribute.getAttributes());
    }

}