Examples with ValueChange org.javers.core.diff.changetype.ValueChange used on opensource projects

Example 1 with ValueChange

use of org.javers.core.diff.changetype.ValueChange in project tutorials by eugenp.

the class JaversUnitTest method givenListOfPersons_whenCompare_ThenShouldDetectChanges.

@Test
public void givenListOfPersons_whenCompare_ThenShouldDetectChanges() {
    // given
    Javers javers = JaversBuilder.javers().build();
    Person personThatWillBeRemoved = new Person(2, "Thomas Link");
    List<Person> oldList = Lists.asList(new Person(1, "Michael Program"), personThatWillBeRemoved);
    List<Person> newList = Lists.asList(new Person(1, "Michael Not Program"));
    // when
    Diff diff = javers.compareCollections(oldList, newList, Person.class);
    // then
    assertThat(diff.getChanges()).hasSize(3);
    ValueChange valueChange = diff.getChangesByType(ValueChange.class).get(0);
    assertThat(valueChange.getPropertyName()).isEqualTo("name");
    assertThat(valueChange.getLeft()).isEqualTo("Michael Program");
    assertThat(valueChange.getRight()).isEqualTo("Michael Not Program");
    ObjectRemoved objectRemoved = diff.getChangesByType(ObjectRemoved.class).get(0);
    assertThat(objectRemoved.getAffectedObject().get().equals(personThatWillBeRemoved)).isTrue();
    ListChange listChange = diff.getChangesByType(ListChange.class).get(0);
    assertThat(listChange.getValueRemovedChanges().size()).isEqualTo(1);
}

Example 2 with ValueChange

use of org.javers.core.diff.changetype.ValueChange in project tutorials by eugenp.

the class JaversUnitTest method givenPersonObject_whenApplyModificationOnIt_thenShouldDetectChange.

@Test
public void givenPersonObject_whenApplyModificationOnIt_thenShouldDetectChange() {
    // given
    Javers javers = JaversBuilder.javers().build();
    Person person = new Person(1, "Michael Program");
    Person personAfterModification = new Person(1, "Michael Java");
    // when
    Diff diff = javers.compare(person, personAfterModification);
    // then
    ValueChange change = diff.getChangesByType(ValueChange.class).get(0);
    assertThat(diff.getChanges()).hasSize(1);
    assertThat(change.getPropertyName()).isEqualTo("name");
    assertThat(change.getLeft()).isEqualTo("Michael Program");
    assertThat(change.getRight()).isEqualTo("Michael Java");
}

Example 3 with ValueChange

use of org.javers.core.diff.changetype.ValueChange in project jag-pcss-civil by bcgov.

the class TestService method printDiff.

private void printDiff(Diff diff) {
    int diffSize = diff.getChanges().size();
    if (diffSize == 0) {
        return;
    }
    String[] header = new String[] { "Property", "API Response", "WM Response" };
    String[][] table = new String[diffSize + 1][3];
    table[0] = header;
    for (int i = 0; i < diffSize; ++i) {
        Change ch = diff.getChanges().get(i);
        if (ch instanceof ListChange) {
            String apiVal = ((ListChange) ch).getLeft() == null ? "null" : ((ListChange) ch).getLeft().toString();
            String wmVal = ((ListChange) ch).getRight() == null ? "null" : ((ListChange) ch).getRight().toString();
            table[i + 1][0] = ((ListChange) ch).getPropertyNameWithPath();
            table[i + 1][1] = apiVal;
            table[i + 1][2] = wmVal;
        } else if (ch instanceof ValueChange) {
            String apiVal = ((ValueChange) ch).getLeft() == null ? "null" : ((ValueChange) ch).getLeft().toString();
            String wmVal = ((ValueChange) ch).getRight() == null ? "null" : ((ValueChange) ch).getRight().toString();
            table[i + 1][0] = ((ValueChange) ch).getPropertyNameWithPath();
            table[i + 1][1] = apiVal;
            table[i + 1][2] = wmVal;
        }
    }
    boolean leftJustifiedRows = false;
    int totalColumnLength = 10;
    /*
         * Calculate appropriate Length of each column by looking at width of data in
         * each column.
         *
         * Map columnLengths is <column_number, column_length>
         */
    Map<Integer, Integer> columnLengths = new HashMap<>();
    Arrays.stream(table).forEach(a -> Stream.iterate(0, (i -> i < a.length), (i -> ++i)).forEach(i -> {
        if (columnLengths.get(i) == null) {
            columnLengths.put(i, 0);
        }
        if (columnLengths.get(i) < a[i].length()) {
            columnLengths.put(i, a[i].length());
        }
    }));
    for (Map.Entry<Integer, Integer> e : columnLengths.entrySet()) {
        totalColumnLength += e.getValue();
    }
    fileOutput.println("=".repeat(totalColumnLength));
    System.out.println("=".repeat(totalColumnLength));
    final StringBuilder formatString = new StringBuilder("");
    String flag = leftJustifiedRows ? "-" : "";
    columnLengths.entrySet().stream().forEach(e -> formatString.append("| %" + flag + e.getValue() + "s "));
    formatString.append("|\n");
    Stream.iterate(0, (i -> i < table.length), (i -> ++i)).forEach(a -> {
        fileOutput.printf(formatString.toString(), table[a]);
        System.out.printf(formatString.toString(), table[a]);
    });
    fileOutput.println("=".repeat(totalColumnLength));
    System.out.println("=".repeat(totalColumnLength));
}