| /* |
| * 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 |
| * limitations under the License. |
| */ |
| package org.apache.openejb.arquillian.common; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.util.AbstractMap; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| public class ObjectMap extends AbstractMap<String, Object> { |
| |
| private final Object object; |
| private Map<String,Entry<String,Object>> attributes; |
| private Set<Entry<String,Object>> entries; |
| |
| public ObjectMap(final Object object) { |
| this(object.getClass(), object); |
| } |
| |
| public ObjectMap(final Class clazz) { |
| this(clazz, null); |
| } |
| |
| public ObjectMap(final Class<?> clazz, final Object object) { |
| this.object = object; |
| |
| attributes = new HashMap<String, Entry<String, Object>>(); |
| |
| for (final Field field : clazz.getFields()) { |
| final FieldEntry entry = new FieldEntry(field); |
| attributes.put(entry.getKey(), entry); |
| } |
| |
| for (final Method getter : clazz.getMethods()) { |
| try { |
| if (!getter.getName().startsWith("get")) { |
| continue; |
| } |
| if (getter.getParameterTypes().length != 0) { |
| continue; |
| } |
| |
| |
| final String name = getter.getName().replaceFirst("get", "set"); |
| final Method setter = clazz.getMethod(name, getter.getReturnType()); |
| |
| final MethodEntry entry = new MethodEntry(getter, setter); |
| |
| attributes.put(entry.getKey(), entry); |
| } catch (final NoSuchMethodException e) { |
| // no-op |
| } |
| } |
| |
| entries = Collections.unmodifiableSet(new HashSet<Entry<String, Object>>(attributes.values())); |
| } |
| |
| @Override |
| public Object get(final Object key) { |
| final Entry<String, Object> entry = attributes.get(key); |
| if (entry == null) { |
| return null; |
| } |
| return entry.getValue(); |
| } |
| |
| @Override |
| public Object put(final String key, final Object value) { |
| final Entry<String, Object> entry = attributes.get(key); |
| if (entry == null) { |
| return null; |
| } |
| return entry.setValue(value); |
| } |
| |
| @Override |
| public boolean containsKey(final Object key) { |
| return attributes.containsKey(key); |
| } |
| |
| @Override |
| public Object remove(final Object key) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public Set<Entry<String, Object>> entrySet() { |
| return entries; |
| } |
| |
| public class FieldEntry implements Entry<String, Object> { |
| |
| private final Field field; |
| |
| public FieldEntry(final Field field) { |
| this.field = field; |
| } |
| |
| @Override |
| public String getKey() { |
| return field.getName(); |
| } |
| |
| @Override |
| public String getValue() { |
| try { |
| return (String) field.get(object); |
| } catch (final IllegalAccessException e) { |
| throw new IllegalStateException(e); |
| } |
| } |
| |
| @Override |
| public Object setValue(final Object value) { |
| try { |
| final Object replaced = getValue(); |
| field.set(object, value); |
| return replaced; |
| } catch (final IllegalAccessException e) { |
| throw new IllegalArgumentException(e); |
| } |
| } |
| } |
| |
| public class MethodEntry implements Entry<String, Object> { |
| private final String key; |
| private final Method getter; |
| private final Method setter; |
| |
| public MethodEntry(final Method getter, final Method setter) { |
| final StringBuilder name = new StringBuilder(getter.getName()); |
| |
| // remove 'set' or 'get' |
| name.delete(0, 3); |
| |
| // lowercase first char |
| name.setCharAt(0, Character.toLowerCase(name.charAt(0))); |
| |
| this.key = name.toString(); |
| this.getter = getter; |
| this.setter = setter; |
| } |
| |
| protected Object invoke(final Method method, final Object... args) { |
| try { |
| return method.invoke(object, args); |
| } catch (final IllegalAccessException e) { |
| throw new IllegalStateException(e); |
| } catch (final InvocationTargetException e) { |
| throw new ArquillianRuntimeException(e.getCause()); |
| } |
| } |
| |
| @Override |
| public String getKey() { |
| return key; |
| } |
| |
| @Override |
| public Object getValue() { |
| return invoke(getter); |
| } |
| |
| @Override |
| public Object setValue(final Object value) { |
| final Object original = getValue(); |
| invoke(setter, value); |
| return original; |
| } |
| } |
| } |