import java.awt.CompositeContext;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
import java.util.List;
+import java.util.Map;
+import java.util.Set;
import org.wamblee.collections.CollectionFilter;
import org.wamblee.conditions.Condition;
import org.wamblee.conditions.FixedCondition;
import org.wamblee.general.Pair;
+import org.wamblee.reflection.ReflectionUtils;
import org.wamblee.system.core.DefaultProvidedInterface;
import org.wamblee.system.core.DefaultRequiredInterface;
import org.wamblee.system.core.ProvidedInterface;
*/
public class SetterConfiguration {
- private Class _class;
-
- private List<Pair<Method, ParameterValues>> _setters;
-
- /**
- * Constructs the setter configuration. By default all setters are added.
- *
- * @param aClass
- * Class which is being configured.
- */
- public SetterConfiguration(Class aClass) {
- _class = aClass;
- _setters = getAllSetters();
- }
-
- /**
- * Removes all setters.
- *
- * @return Reference to the current object to allow call chaining.
- */
- public SetterConfiguration clear() {
- _setters.clear();
- return this;
- }
-
- /**
- * Removes a setter from the set of methods.
- *
- * @param aName
- * Name of the setter to remove (without the "set" prefix).
- * @return Reference to the current object to allow call chaining.
- */
- public SetterConfiguration remove(String aName) {
- final String name = createSetterName(aName);
- List<Pair<Method,ParameterValues>> setters =
- new ArrayList<Pair<Method,ParameterValues>>();
- CollectionFilter.filter(_setters, setters, new Condition<Pair<Method,ParameterValues>>() {
- @Override
- public boolean matches(Pair<Method,ParameterValues> aObject) {
- return !aObject.getFirst().getName().equals(name);
- }
+ private Class _class;
+ private boolean _publicOnly;
- });
- if ( _setters.size() == setters.size()) {
- throw new IllegalArgumentException("No setter configured by the name of '" + aName + "'");
- }
- _setters = setters;
- return this;
- }
-
- /**
- * Creates the name of a setter based on the name of the setter without
- * the "set" prefix.
- * @param aName Setter name.
- * @return Setter name.
- */
- private String createSetterName(String aName) {
- return "set" + aName.substring(0, 1).toUpperCase()
- + aName.substring(1);
- }
-
- /**
- * Adds a given setter name to the setters.
- * @param aName
- * @return Reference to the current object to allow call chaining.
- */
- public SetterConfiguration add(String aName) {
- final String name = createSetterName(aName);
- int oldlen = _setters.size();
- CollectionFilter.filter(getAllSetters(), _setters,
- new Condition<Pair<Method,ParameterValues>>() {
- @Override
- public boolean matches(Pair<Method,ParameterValues> aObject) {
- return aObject.getFirst().getName().equals(name);
- }
-
- });
- if ( _setters.size() == oldlen) {
- throw new IllegalArgumentException("No setter found for '" + aName + "'");
- }
- return this;
- }
-
- /**
- * Gets all setters for the current class.
- * @return List of all setters.
- */
- private List<Pair<Method, ParameterValues>> getAllSetters() {
- List<Pair<Method,ParameterValues>> result =
- new ArrayList<Pair<Method, ParameterValues>>();
- for (Method method : _class.getMethods()) {
- if (method.getName().startsWith("set")
- && method.getParameterTypes().length == 1) {
- String name = getSetterName(method);
- result.add(new Pair<Method,ParameterValues>(method,
- new ParameterValues(
- new String[] { name }, new Class[] { method.getParameterTypes()[0] })));
- }
- }
- return result;
- }
-
- /**
- * Gets the required interfaces based on the configured setteres.
- * @return List of required interfaces.
- */
- public List<RequiredInterface> getRequiredInterfaces() {
- List<RequiredInterface> result = new ArrayList<RequiredInterface>();
- for (Pair<Method,ParameterValues> method: _setters) {
- result.addAll(method.getSecond().getRequiredInterfaces());
- }
- return result;
- }
-
-
- /**
- * Invokes all configured setters with the appropriate values.
- * @param aScope Scope within which invocation takes place.
- * @param aObject Object on which the invocation takes place.
- */
- public void inject(Scope aScope, Object aObject) {
- if ( !_class.isInstance(aObject)) {
- throw new IllegalArgumentException("Object '" + aObject + "' is not an instance of "
- + _class.getName());
- }
- for (Pair<Method,ParameterValues> setter: _setters) {
- Method method = setter.getFirst();
- ParameterValues values = setter.getSecond();
-
- try {
- method.invoke(aObject, values.values(aScope));
- } catch (IllegalAccessException e) {
- throw new SystemAssemblyException("Problem invoking " + method + " with " + values, e);
- } catch (InvocationTargetException e) {
- throw new SystemAssemblyException("Problem invoking " + method + " with " + values, e);
- }
- }
- }
-
- /**
- * Returns the parameter values for allowing detailed configuration of how
- * parameter values are set.
- * @param aSetter Setter name without the "set" prefix with the first
- * character converted to lower case.
- * @return Parameter values.
- */
- public ParameterValues values(String aMethod) {
- String name = createSetterName(aMethod);
- for (Pair<Method,ParameterValues> method: _setters) {
- if ( method.getFirst().getName().equals(name) ) {
- return method.getSecond();
+ private Map<Method, ParameterValues> _setters;
+
+ /**
+ * Constructs the setter configuration. By default no setters are added.
+ *
+ * @param aClass
+ * Class which is being configured.
+ */
+ public SetterConfiguration(Class aClass) {
+ _class = aClass;
+ _publicOnly = true;
+ _setters = new HashMap<Method, ParameterValues>();
+ }
+
+ /**
+ * Makes sure that all available setters are used.
+ */
+ public SetterConfiguration initAllSetters() {
+ _setters.clear();
+ for (Method method: getAllSetters(_class, _publicOnly) ) {
+ _setters.put(method, createParameterValues(method));
+ }
+ return this;
+ }
+
+ /**
+ * Called to set whether non-public setters are also used. By default only
+ * public setters are used. The currently selected setters remain chosen.
+ *
+ * @param aIsNonPublic
+ * Non public flag.
+ */
+ public SetterConfiguration setNonPublic(boolean aIsNonPublic) {
+ _publicOnly = !aIsNonPublic;
+ return this;
+ }
+
+ /**
+ * Removes all setters.
+ *
+ * @return Reference to the current object to allow call chaining.
+ */
+ public SetterConfiguration clear() {
+ _setters.clear();
+ return this;
+ }
+
+ /**
+ * Removes a setter from the set of methods.
+ *
+ * @param aName
+ * Name of the setter to remove.
+ * @return Reference to the current object to allow call chaining.
+ */
+ public SetterConfiguration remove(String aName) {
+ for (Method method : _setters.keySet()) {
+ if (method.getName().equals(aName)) {
+ _setters.remove(method);
+ return this;
+ }
+ }
+ throw new IllegalArgumentException(
+ "No method configured by the name of '" + aName + "'");
+ }
+
+ /**
+ * Removes the method from the set of methods.
+ * @param aMethod Method to remove.
+ * @return
+ */
+ public SetterConfiguration remove(Method aMethod) {
+ if ( !aMethod.getDeclaringClass().isAssignableFrom(_class) ) {
+ throw new RuntimeException("Method " + aMethod + " not found in class " + _class + " or its superclasses");
+ }
+ for (Method method : _setters.keySet()) {
+ if (method.equals(aMethod)) {
+ _setters.remove(method);
+ return this;
}
}
- throw new IllegalArgumentException("No setter method '" + name + "' found");
- }
-
- /**
- * Gets the setter name for a given setter method. This is the name of the
- * setter without the "set" prefix and with the first character converted to
- * lowercase.
- * @param aMethod Method.
- * @return Setter name.
- */
- private String getSetterName(Method aMethod) {
- String result = aMethod.getName().substring(3);
- return result.substring(0,1).toLowerCase() + result.substring(1);
- }
-
+ throw new IllegalArgumentException(
+ "Method '" + aMethod + "' was not configured. ");
+ }
+
+ /**
+ * Adds a given setter name to the setters.
+ *
+ * @param aName Name of a setter method.
+ * @return Reference to the current object to allow call chaining.
+ */
+ public SetterConfiguration add(final String aName) {
+ int oldlen = _setters.size();
+ List<Method> methods = new ArrayList<Method>();
+ CollectionFilter.filter(getAllSetters(_class, _publicOnly), methods,
+ new Condition<Method>() {
+ @Override
+ public boolean matches(Method aObject) {
+ return aObject.getName().equals(aName);
+ }
+
+ });
+ if (methods.size() == 0 ) {
+ throw new IllegalArgumentException("Method '" + aName
+ + "' not found in " + _class.getName());
+ }
+ // TODO is it possible to get more than one setter here in case the subclass overrides
+ // the baseclass method?
+ _setters.put(methods.get(0), createParameterValues(methods.get(0)));
+ return this;
+ }
+
+ /**
+ * Adds a given setter identified by the type it accepts to the list of
+ * setters.N
+ *
+ * @param aType
+ * Type to look for. Note that this must be the exact type as
+ * autoboxing and autounboxing is not used.
+ * @return Reference to the current object to allow call chaining.
+ * @throws IllegalArgumentException
+ * In case no setter is found or multiple setters are found.
+ */
+ public SetterConfiguration addSetter(final Class aType) {
+ List<Method> result = new ArrayList<Method>();
+ CollectionFilter.filter(getAllSetters(_class, _publicOnly), result,
+ new Condition<Method>() {
+ @Override
+ public boolean matches(Method aObject) {
+ Class type = aObject.getParameterTypes()[0];
+ return type.equals(aType);
+ }
+
+ });
+ if (result.size() == 0) {
+ throw new IllegalArgumentException("No setter found in class '"
+ + _class.getName()
+ + "' that has a setter with argument type '"
+ + aType.getName() + "'");
+ }
+ if (result.size() > 1) {
+ String setters = "";
+ for (Method method : result) {
+ setters += method.getName() + " ";
+ }
+ throw new IllegalArgumentException(
+ "Multiple setters found in class '" + _class.getName()
+ + " that accept type '" + aType.getName() + "': "
+ + setters);
+ }
+ Method method = result.get(0);
+ _setters.put(method, createParameterValues(method));
+ return this;
+ }
+
+ /**
+ * Gets all setters for the current class.
+ *
+ * @return List of all setters.
+ */
+ public static List<Method> getAllSetters(Class aClass,
+ boolean aPublicOnly) {
+ List<Method> result = new ArrayList<Method>();
+ for (Method method : getAllMethods(aClass)) {
+ if (!aPublicOnly || Modifier.isPublic(method.getModifiers())) {
+ if (method.getName().startsWith("set")
+ && method.getParameterTypes().length == 1) {
+ method.setAccessible(true);
+ result.add(method);
+ }
+ }
+ }
+ return result;
+ }
+
+ private static ParameterValues createParameterValues(Method aMethod) {
+
+ Class[] paramTypes = aMethod.getParameterTypes();
+ String[] paramNames = new String[paramTypes.length];
+ for (int i = 0; i < paramTypes.length; i++) {
+ paramNames[i] = aMethod.getName() + "." + i;
+ }
+ return new ParameterValues(paramNames, paramTypes);
+ }
+
+ private static final List<Method> getAllMethods(Class aClass) {
+ return ReflectionUtils.getAllMethods(aClass);
+ }
+
+ /**
+ * Gets the required interfaces based on the configured setteres.
+ *
+ * @return List of required interfaces.
+ */
+ public List<RequiredInterface> getRequiredInterfaces() {
+ List<RequiredInterface> result = new ArrayList<RequiredInterface>();
+ for (Method method : _setters.keySet()) {
+ result.addAll(_setters.get(method).getRequiredInterfaces());
+ }
+ return result;
+ }
+
+ /**
+ * Invokes all configured setters with the appropriate values.
+ *
+ * @param aScope
+ * Scope within which invocation takes place.
+ * @param aObject
+ * Object on which the invocation takes place.
+ */
+ public void inject(Scope aScope, Object aObject) {
+ if (!_class.isInstance(aObject)) {
+ throw new IllegalArgumentException("Object '" + aObject
+ + "' is not an instance of " + _class.getName());
+ }
+ for (Method method : _setters.keySet()) {
+ ParameterValues values = _setters.get(method);
+
+ try {
+ method.invoke(aObject, values.values(aScope));
+ } catch (IllegalAccessException e) {
+ throw new SystemAssemblyException("Problem invoking " + method
+ + " with " + values, e);
+ } catch (InvocationTargetException e) {
+ throw new SystemAssemblyException("Problem invoking " + method
+ + " with " + values, e);
+ }
+ }
+ }
+
+ /**
+ * Returns the parameter values for allowing detailed configuration of how
+ * parameter values are set.
+ *
+ * @param aSetter
+ * Setter name without the "set" prefix with the first character
+ * converted to lower case.
+ * @return Parameter values.
+ */
+ public ParameterValues values(String aMethod) {
+ for (Method method : _setters.keySet()) {
+ if (method.getName().equals(aMethod)) {
+ return _setters.get(method);
+ }
+ }
+ throw new IllegalArgumentException("No setter method '" + aMethod
+ + "' found");
+ }
+
+ public List<Method> getSetters() {
+ return new ArrayList<Method>(_setters.keySet());
+ }
}
git://wamblee.org / utils / blobdiff