[picocontainer-scm] [5600] java/2.x/trunk/pico/container/src/test/org/picocontainer/injectors: start of named method injection

Revision 5600
Author paul
Date 2010-02-12 13:46:51 -0600 (Fri, 12 Feb 2010)

Log Message

start of named method injection

Added Paths

- java/2.x/trunk/pico/container/src/java/org/picocontainer/injectors/NamedMethodInjector.java

- java/2.x/trunk/pico/container/src/test/org/picocontainer/injectors/NamedMethodInjectorTestCase.java

Diff

Added: java/2.x/trunk/pico/container/src/java/org/picocontainer/injectors/NamedMethodInjector.java (0 => 5600)

--- java/2.x/trunk/pico/container/src/java/org/picocontainer/injectors/NamedMethodInjector.java (rev 0)
+++ java/2.x/trunk/pico/container/src/java/org/picocontainer/injectors/NamedMethodInjector.java 2010-02-12 19:46:51 UTC (rev 5600)
@@ -0,0 +1,63 @@
+/*****************************************************************************
+ * Copyright (C) PicoContainer Organization. All rights reserved. *
+ * ------------------------------------------------------------------------- *
+ * The software in this package is published under the terms of the BSD *
+ * style license a copy of which has been included with this distribution in *
+ * the LICENSE.txt file. *
+ * *
+ * Original code by *
+ *****************************************************************************/
+package org.picocontainer.injectors;
+
+import org.picocontainer.ComponentMonitor;
+import org.picocontainer.NameBinding;
+import org.picocontainer.Parameter;
+
+import java.lang.reflect.AccessibleObject;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+@SuppressWarnings("serial")
+public class NamedMethodInjector<T> extends SetterInjector<T> {
+
+ public NamedMethodInjector(Object key,
+ Class<?> impl,
+ Parameter[] parameters,
+ ComponentMonitor monitor) {
+ super(key, impl, parameters, monitor, "set", true);
+ }
+
+ public NamedMethodInjector(Object key,
+ Class<?> impl,
+ Parameter[] parameters,
+ ComponentMonitor monitor,
+ String prefix) {
+ super(key, impl, parameters, monitor, prefix, true);
+ }
+
+ @Override
+ protected Object injectIntoMember(AccessibleObject member, Object componentInstance, Object toInject)
+ throws IllegalAccessException, InvocationTargetException {
+ return ((Method)member).invoke(componentInstance, toInject);
+ }
+
+ @Override
+ protected NameBinding makeParameterNameImpl(final AccessibleObject member) {
+ return new NameBinding() {
+ public String getName() {
+ return NamedMethodInjector.this.getName((Method) member);
+ }
+ };
+ }
+
+ @Override
+ protected String getName(Method method) {
+ String name = method.getName().substring(prefix.length()); // string off 'set' or chosen prefix
+ return name.substring(0,1).toLowerCase() + name.substring(1);
+ }
+
+ public String toString() {
+ return "NamedMethodInjection-" + super.toString();
+ }
+
+}
\ No newline at end of file

Added: java/2.x/trunk/pico/container/src/test/org/picocontainer/injectors/NamedMethodInjectorTestCase.java (0 => 5600)

--- java/2.x/trunk/pico/container/src/test/org/picocontainer/injectors/NamedMethodInjectorTestCase.java (rev 0)
+++ java/2.x/trunk/pico/container/src/test/org/picocontainer/injectors/NamedMethodInjectorTestCase.java 2010-02-12 19:46:51 UTC (rev 5600)
@@ -0,0 +1,82 @@
+package org.picocontainer.injectors;
+
+import org.junit.Test;
+import org.picocontainer.DefaultPicoContainer;
+import org.picocontainer.Parameter;
+import org.picocontainer.monitors.NullComponentMonitor;
+
+import static com.sun.tools.internal.ws.wsdl.parser.Util.fail;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+public class NamedMethodInjectorTestCase {
+
+ public static class Windmill {
+ private String wind;
+ public void setWind(String eeeeee) { // it is important to note here that 'eeeee' is not going to match any named comp
+ this.wind = eeeeee;
+ }
+ }
+
+ @Test
+ public void shouldMatchBasedOnMethodNameIfComponentAvailable() {
+ final String expected = "use this one pico, its key matched the method name (ish)";
+ NamedMethodInjector nmi = new NamedMethodInjector(Windmill.class, Windmill.class, Parameter.DEFAULT,
+ new NullComponentMonitor());
+ Windmill windmill = new DefaultPicoContainer()
+ .addAdapter(nmi)
+ .addConfig("attemptToConfusePicoContainer", "ha ha, confused you")
+ .addConfig("wind", expected) // matches setWind(..)
+ .addConfig("woo look here another string", "yup, really fooled you this time")
+ .getComponent(Windmill.class);
+ assertNotNull(windmill);
+ assertNotNull(windmill.wind);
+ assertEquals(expected, windmill.wind);
+ }
+
+ @Test
+ public void shouldBeAmbigiousMultipleComponentAvailableOfRightTypeWithoutMatchingName() {
+ NamedMethodInjector nmi = new NamedMethodInjector(Windmill.class, Windmill.class, Parameter.DEFAULT,
+ new NullComponentMonitor());
+ try {
+ new DefaultPicoContainer()
+ .addAdapter(nmi)
+ .addConfig("attemptToConfusePicoContainer", "ha ha, confused you")
+ .addConfig("woo look here another", "yup, really fooled you this time")
+ .getComponent(Windmill.class);
+ fail("should have barfed");
+ } catch (AbstractInjector.AmbiguousComponentResolutionException e) {
+ // expected
+ }
+ }
+
+ @Test
+ public void shouldBeUnsatisfiedIfNoComponentAvailableOfTheRightType() {
+ NamedMethodInjector nmi = new NamedMethodInjector(Windmill.class, Windmill.class, Parameter.DEFAULT,
+ new NullComponentMonitor());
+ try {
+ new DefaultPicoContainer()
+ .addAdapter(nmi)
+ .addConfig("attemptToConfusePicoContainer", 123)
+ .addConfig("woo look here another", 456)
+ .getComponent(Windmill.class);
+ fail("should have barfed");
+ } catch (AbstractInjector.UnsatisfiableDependenciesException e) {
+ // expected
+ }
+ }
+
+ @Test
+ public void withoutNameMatchWillBeOKTooIfOnlyOneOfRightType() {
+ NamedMethodInjector nmi = new NamedMethodInjector(Windmill.class, Windmill.class, Parameter.DEFAULT,
+ new NullComponentMonitor());
+ Windmill windmill = new DefaultPicoContainer()
+ .addAdapter(nmi)
+ .addConfig("anything", "hello")
+ .getComponent(Windmill.class);
+ assertNotNull(windmill);
+ assertNotNull(windmill.wind);
+ assertEquals("hello", windmill.wind);
+ }
+
+}

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