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Event-driven lists for dynamically filtered and sorted tables
package ca.odell.glazedlists;
import ca.odell.glazedlists.impl.matchers.NotMatcher;
import ca.odell.glazedlists.impl.matchers.PropertyEventNameMatcher;
import ca.odell.glazedlists.matchers.AbstractMatcherEditor;
import ca.odell.glazedlists.matchers.Matcher;
import ca.odell.glazedlists.matchers.MatcherEditor;
import ca.odell.glazedlists.matchers.Matchers;
import ca.odell.glazedlists.matchers.TextMatcherEditor;
import junit.framework.TestCase;
import java.beans.PropertyChangeEvent;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;
public class MatcherTest extends TestCase {
public void testTrueMatcher() {
Matcher s = Matchers.trueMatcher();
Matcher b = Matchers.trueMatcher();
assertSame(s, b);
}
public void testFalseMatcher() {
Matcher s = Matchers.falseMatcher();
Matcher b = Matchers.falseMatcher();
assertSame(s, b);
}
public void testNotMatcher() {
Matcher s = new NotMatcher(new CapitalizedStringMatcher());
assertFalse(s.matches("James"));
assertTrue(s.matches("james"));
Matcher b = new NotMatcher(new OnMatcher());
assertFalse(b.matches(Boolean.TRUE));
assertTrue(b.matches(Boolean.FALSE));
}
public void testGenerics() {
NumberMatcherEditor numMatcherEditor = new NumberMatcherEditor();
assertTrue(numMatcherEditor.getMatcher().matches(new Integer(5)));
numMatcherEditor.setNumber(new Integer(10));
assertFalse(numMatcherEditor.getMatcher().matches(new Integer(5)));
assertTrue(numMatcherEditor.getMatcher().matches(new Integer(10)));
numMatcherEditor.setNumber(new Float(3.14f));
assertFalse(numMatcherEditor.getMatcher().matches(new Integer(10)));
assertTrue(numMatcherEditor.getMatcher().matches(new Float(3.14f)));
MatcherEditor typedMatcherEditor = numMatcherEditor;
assertFalse(typedMatcherEditor.getMatcher().matches(new Integer(10)));
assertTrue(typedMatcherEditor.getMatcher().matches(new Float(3.14f)));
typedMatcherEditor = new TextMatcherEditor(GlazedLists.toStringTextFilterator());
assertTrue(typedMatcherEditor.getMatcher().matches(new Integer(10)));
assertTrue(typedMatcherEditor.getMatcher().matches(new Float(3.14f)));
((TextMatcherEditor)typedMatcherEditor).setFilterText(new String[] { "3" });
assertFalse(typedMatcherEditor.getMatcher().matches(new Integer(10)));
assertTrue(typedMatcherEditor.getMatcher().matches(new Float(3.14f)));
}
public void testFilter() {
List elements = new ArrayList();
elements.add(new Integer(45));
elements.add(new Integer(22));
elements.add(new Integer(15));
elements.add(new Integer(22));
elements.add(new Integer(13));
elements.add(new Integer(53));
elements.add(new Integer(22));
elements.add(new Integer(23));
elements.add(new Integer(22));
boolean result;
result = Matchers.filter(elements, new NumberMatcher(new Integer(22)));
assertEquals(true, result);
assertEquals(4, elements.size());
result = Matchers.filter(elements, new NumberMatcher(new Integer(22)));
assertEquals(false, result);
assertEquals(4, elements.size());
result = Matchers.filter(elements, new NumberMatcher(new Integer(33)));
assertEquals(true, result);
assertEquals(0, elements.size());
result = Matchers.filter(elements, new NumberMatcher(new Integer(35)));
assertEquals(false, result);
assertEquals(0, elements.size());
}
public void testSelect() {
List elements = new ArrayList();
elements.add(new Integer(45));
elements.add(new Integer(22));
elements.add(new Integer(15));
elements.add(new Integer(22));
elements.add(new Integer(13));
elements.add(new Integer(53));
elements.add(new Integer(22));
elements.add(new Integer(23));
elements.add(new Integer(22));
Collection results = Matchers.select(elements, new NumberMatcher(new Integer(22)));
assertEquals(4, results.size());
results = Matchers.select(elements, new NumberMatcher(new Integer(22)), results);
assertEquals(8, results.size());
results = Matchers.select(elements, new NumberMatcher(new Integer(45)), results);
assertEquals(9, results.size());
results = Matchers.select(elements, new NumberMatcher(new Integer(99)), results);
assertEquals(9, results.size());
}
public void testIndexOf() {
List elements = new ArrayList();
elements.add(new Integer(45));
elements.add(new Integer(22));
elements.add(new Integer(15));
elements.add(new Integer(22));
elements.add(new Integer(13));
elements.add(new Integer(53));
elements.add(new Integer(22));
elements.add(new Integer(23));
elements.add(new Integer(22));
assertEquals(0, Matchers.indexOf(elements, new NumberMatcher(new Integer(45))));
assertEquals(1, Matchers.indexOf(elements, new NumberMatcher(new Integer(22))));
assertEquals(2, Matchers.indexOf(elements, new NumberMatcher(new Integer(15))));
assertEquals(4, Matchers.indexOf(elements, new NumberMatcher(new Integer(13))));
assertEquals(-1, Matchers.indexOf(elements, new NumberMatcher(new Integer(99))));
}
public void testPropertyMatcher() {
Matcher matcher = Matchers.beanPropertyMatcher(Collection.class, "empty", Boolean.TRUE);
assertEquals(true, matcher.matches(Collections.EMPTY_LIST));
assertEquals(false, matcher.matches(Collections.singletonList("A")));
assertEquals(true, matcher.matches(Arrays.asList(new Object[0])));
assertEquals(false, matcher.matches(Arrays.asList(new Object[] { "B" })));
assertEquals(true, matcher.matches(Collections.EMPTY_SET));
assertEquals(false, matcher.matches(null));
}
public void testDateRangeMatcher() {
Matcher matcher = Matchers.rangeMatcher(new Date(10000), new Date(20000));
assertEquals(false, matcher.matches(new Date(9999)));
assertEquals(true, matcher.matches(new Date(10000)));
assertEquals(true, matcher.matches(new Date(15000)));
assertEquals(true, matcher.matches(new Date(20000)));
assertEquals(false, matcher.matches(new Date(20001)));
assertEquals(true, matcher.matches(null));
matcher = Matchers.rangeMatcher(null, new Date(20000));
assertEquals(true, matcher.matches(new Date(-9999)));
assertEquals(true, matcher.matches(new Date(9999)));
assertEquals(true, matcher.matches(new Date(10000)));
assertEquals(true, matcher.matches(new Date(15000)));
assertEquals(true, matcher.matches(new Date(20000)));
assertEquals(false, matcher.matches(new Date(20001)));
assertEquals(true, matcher.matches(null));
matcher = Matchers.rangeMatcher(new Date(10000), null);
assertEquals(false, matcher.matches(new Date(9999)));
assertEquals(true, matcher.matches(new Date(10000)));
assertEquals(true, matcher.matches(new Date(15000)));
assertEquals(true, matcher.matches(new Date(20000)));
assertEquals(true, matcher.matches(new Date(20001)));
assertEquals(true, matcher.matches(null));
matcher = Matchers.rangeMatcher(null, null);
assertEquals(true, matcher.matches(new Date(9999)));
assertEquals(true, matcher.matches(new Date(10000)));
assertEquals(true, matcher.matches(new Date(15000)));
assertEquals(true, matcher.matches(new Date(20000)));
assertEquals(true, matcher.matches(new Date(20001)));
assertEquals(true, matcher.matches(null));
}
public void testPropertyEventNameMatcher() {
try {
new PropertyEventNameMatcher(true, (Collection) null);
fail("Expected exception for PropertyEventNameMatcher constructor");
} catch (IllegalArgumentException ex) {
// expected
}
try {
new PropertyEventNameMatcher(true, (String[]) null);
fail("Expected exception for PropertyEventNameMatcher constructor");
} catch (IllegalArgumentException ex) {
// expected
}
final PropertyChangeEvent event1 = new PropertyChangeEvent(this, "test", "old", "new");
final PropertyChangeEvent event2 = new PropertyChangeEvent(this, "test", null, null);
final PropertyChangeEvent event3 = new PropertyChangeEvent(this, "hello", "old", "new");
final PropertyChangeEvent event4 = new PropertyChangeEvent(this, "hello", null, null);
final PropertyChangeEvent event5 = new PropertyChangeEvent(this, null, null, null);
Matcher matcher = new PropertyEventNameMatcher(true, new String[] {"test", null});
assertEquals(true, matcher.matches(event1));
assertEquals(true, matcher.matches(event2));
assertEquals(false, matcher.matches(event3));
assertEquals(false, matcher.matches(event4));
assertEquals(true, matcher.matches(event5));
matcher = new PropertyEventNameMatcher(false, new String[] {"test", null});
assertEquals(false, matcher.matches(event1));
assertEquals(false, matcher.matches(event2));
assertEquals(true, matcher.matches(event3));
assertEquals(true, matcher.matches(event4));
assertEquals(false, matcher.matches(event5));
matcher = new PropertyEventNameMatcher(true, new String[] {});
assertEquals(false, matcher.matches(event1));
assertEquals(false, matcher.matches(event2));
assertEquals(false, matcher.matches(event3));
assertEquals(false, matcher.matches(event4));
assertEquals(false, matcher.matches(event5));
matcher = new PropertyEventNameMatcher(false, new String[] {});
assertEquals(true, matcher.matches(event1));
assertEquals(true, matcher.matches(event2));
assertEquals(true, matcher.matches(event3));
assertEquals(true, matcher.matches(event4));
assertEquals(true, matcher.matches(event5));
matcher = new PropertyEventNameMatcher(true, Arrays.asList(new String[] {"test", null}));
assertEquals(true, matcher.matches(event1));
assertEquals(true, matcher.matches(event2));
assertEquals(false, matcher.matches(event3));
assertEquals(false, matcher.matches(event4));
assertEquals(true, matcher.matches(event5));
}
public void testTypeMatcher() {
final List numbers = new ArrayList();
numbers.add(new Float(0));
numbers.add(new Double(1));
numbers.add(new Short((short) 2));
numbers.add(new Integer(3));
numbers.add(new Long(4));
Collection selected;
final Matcher intAndLongMatcher = Matchers.types(new Class[] {Long.class, Integer.class});
selected = Matchers.select(numbers, intAndLongMatcher);
assertEquals(Arrays.asList(new Number[] {new Integer(3), new Long(4)}), selected);
final Matcher numberMatcher = Matchers.types(new Class[] {Number.class});
selected = Matchers.select(numbers, numberMatcher);
assertEquals(Arrays.asList(new Number[] {new Float(0), new Double(1), new Short((short) 2), new Integer(3), new Long(4)}), selected);
final Matcher stringMatcher = Matchers.types(new Class[] {String.class});
selected = Matchers.select(numbers, stringMatcher);
assertEquals(Collections.EMPTY_LIST, selected);
}
private static class NumberMatcherEditor extends AbstractMatcherEditor {
public void setNumber(Number number) {
this.fireChanged(new NumberMatcher(number));
}
}
private static class NumberMatcher implements Matcher {
private final Number value;
public NumberMatcher(Number value) {
this.value = value;
}
public boolean matches(Number item) {
return value.doubleValue() == item.doubleValue();
}
}
private static class CapitalizedStringMatcher implements Matcher {
public boolean matches(String item) {
return item != null && item.length() > 0 && Character.isUpperCase(item.charAt(0));
}
}
private static class OnMatcher implements Matcher {
public boolean matches(Boolean item) {
return item != null && item.booleanValue();
}
}
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