| /* Copyright 2004 The Apache Software Foundation |
| * |
| * Licensed 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.xmlbeans.impl.jam.internal.elements; |
| |
| import org.apache.xmlbeans.impl.jam.JClass; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * <p>JClass implementation for primitive types.</p> |
| * |
| * @author Patrick Calahan <email: pcal-at-bea-dot-com> |
| */ |
| public final class PrimitiveClassImpl extends BuiltinClassImpl { |
| |
| // ======================================================================== |
| // Constants |
| |
| private static final Object[][] PRIMITIVES = { |
| // Name FD Class |
| {"int", "I", int.class}, |
| {"long", "J", long.class}, |
| {"boolean", "Z", boolean.class}, |
| {"short", "S", short.class}, |
| {"byte", "B", byte.class}, |
| {"char", "C", char.class}, |
| {"float", "F", float.class}, |
| {"double", "D", double.class}, |
| }; |
| |
| private static final Map NAME_TO_FD, NAME_TO_CLASS; |
| |
| static { |
| NAME_TO_FD = new HashMap(); |
| NAME_TO_CLASS = new HashMap(); |
| for (int i = 0; i < PRIMITIVES.length; i++) { |
| NAME_TO_FD.put(PRIMITIVES[i][0],PRIMITIVES[i][1]); |
| NAME_TO_CLASS.put(PRIMITIVES[i][0],PRIMITIVES[i][2]); |
| } |
| }; |
| |
| // ======================================================================== |
| // Factory methods |
| |
| public static void mapNameToPrimitive(ElementContext ctx, Map out) { |
| for(int i=0; i<PrimitiveClassImpl.PRIMITIVES.length; i++) { |
| JClass c = new PrimitiveClassImpl(ctx,(String)PRIMITIVES[i][0]); |
| out.put(PrimitiveClassImpl.PRIMITIVES[i][0],c); |
| out.put(PrimitiveClassImpl.PRIMITIVES[i][1],c); |
| // REVIEW we map both the name and the fd to the class. does that |
| // seem ok? |
| } |
| } |
| |
| /** |
| * Returns the field descriptor for an named primitive, e.g. 'I' for |
| * 'int', or null if the parameter does not name a primitive. |
| */ |
| public static String getPrimitiveClassForName(String named) { |
| return (String)NAME_TO_FD.get(named); |
| } |
| |
| /** |
| * Returns a JClass representing the named primitive type. The name |
| * parameter can be a simple type name (e.g. 'int') or a field |
| * descriptor (e.g. 'I'). Returns null if the parameter does not |
| * name a primitive type. |
| */ |
| /* public static JClass getPrimitiveClassForName(String named) { |
| JClass out = (JClass) NAME_TO_JCLASS.get(named); |
| if (out != null) return out; |
| return (JClass) FD_TO_JCLASS.get(named); |
| }*/ |
| |
| /** |
| * Returns a JClass representing the given primitive Class. Returns |
| * null if the parameter is not a primitive class. |
| */ |
| /*public static JClass getPrimitiveClass(Class clazz) { |
| return getPrimitiveClassForName(clazz.getName()); |
| }*/ |
| |
| // ======================================================================== |
| // Public static utilities |
| |
| /** |
| * Returns true if the named type is a primitive. The parameter can |
| * be a simple type name (e.g. 'int') or a field descriptor |
| * (e.g. 'I'). |
| */ |
| public static boolean isPrimitive(String name) { |
| return (NAME_TO_FD.get(name) != null); |
| } |
| |
| /** |
| * Returns the field descriptor for the given name, e.g. 'int' returns |
| * 'I'. |
| */ |
| public static final String getFieldDescriptor(String classname) { |
| return (String)NAME_TO_FD.get(classname); |
| } |
| |
| |
| /** |
| * Returns the primitve class for the given name, e.g. 'int' returns |
| * int.class. It's really stupid that there isn't a way to deal |
| * with this built in to java. |
| */ |
| public static final Class getPrimitiveClass(String classname) { |
| return (Class)NAME_TO_CLASS.get(classname); |
| } |
| |
| // ======================================================================== |
| // Constructors |
| |
| private PrimitiveClassImpl(ElementContext ctx, String name) { |
| super(ctx); |
| if (name == null) throw new IllegalArgumentException("null name"); |
| if (!NAME_TO_FD.containsKey(name)) { |
| throw new IllegalArgumentException("Unknown primitive class '"+ |
| name+"'"); |
| } |
| reallySetSimpleName(name); |
| } |
| |
| // ======================================================================== |
| // JElement implementation |
| |
| public String getQualifiedName() { return getSimpleName(); } |
| |
| // ======================================================================== |
| // JClass implementation |
| |
| public String getFieldDescriptor() { |
| return (String)NAME_TO_FD.get(getSimpleName()); |
| } |
| |
| public boolean isAssignableFrom(JClass c) { |
| return c.isPrimitiveType() && c.getSimpleName().equals(getSimpleName()); |
| } |
| |
| public boolean isPrimitiveType() { return true; } |
| |
| public Class getPrimitiveClass() { |
| return (Class)NAME_TO_CLASS.get(getSimpleName()); |
| } |
| } |