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1   /*
2    * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4    *
5    * This code is free software; you can redistribute it and/or modify it
6    * under the terms of the GNU General Public License version 2 only, as
7    * published by the Free Software Foundation.  Oracle designates this
8    * particular file as subject to the "Classpath" exception as provided
9    * by Oracle in the LICENSE file that accompanied this code.
10   *
11   * This code is distributed in the hope that it will be useful, but WITHOUT
12   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14   * version 2 for more details (a copy is included in the LICENSE file that
15   * accompanied this code).
16   *
17   * You should have received a copy of the GNU General Public License version
18   * 2 along with this work; if not, write to the Free Software Foundation,
19   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20   *
21   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22   * or visit www.oracle.com if you need additional information or have any
23   * questions.
24   */
25  
26  package com.sun.xml.internal.ws.spi.db;
27  
28  import java.lang.annotation.Annotation;
29  import java.lang.reflect.GenericArrayType;
30  import java.lang.reflect.Type;
31  import java.util.Collection;
32  import java.util.HashMap;
33  import java.util.Map;
34  
35  import javax.xml.namespace.QName;
36  
37  import com.sun.xml.internal.bind.v2.model.nav.Navigator;
38  
39  /**
40   * A reference to a JAXB-bound type.
41   *
42   * <p>
43   * <b>Subject to change without notice</b>.
44   *
45   * @since 2.0 EA1
46   * @author Kohsuke Kawaguchi
47   * @author shih-chang.chen@oracle.com
48   */
49  public final class TypeInfo {
50  
51      /**
52       * The associated XML element name that the JAX-RPC uses with this type reference.
53       *
54       * Always non-null. Strings are interned.
55       */
56      public final QName tagName;
57  
58      /**
59       * The Java type that's being referenced.
60       *
61       * Always non-null.
62       */
63      public Type type;
64  
65      /**
66       * The annotations associated with the reference of this type.
67       *
68       * Always non-null.
69       */
70      public final Annotation[] annotations;
71  
72      private Map<String, Object> properties = new HashMap<String, Object>();
73  
74      private boolean isGlobalElement = true;
75  
76      private TypeInfo parentCollectionType;
77  
78      private Type genericType;
79  
80      private boolean nillable = true;
81  
82      public TypeInfo(QName tagName, Type type, Annotation... annotations) {
83          if(tagName==null || type==null || annotations==null) {
84              String nullArgs = "";
85  
86              if(tagName == null)     nullArgs = "tagName";
87              if(type == null)        nullArgs += (nullArgs.length() > 0 ? ", type" : "type");
88              if(annotations == null) nullArgs += (nullArgs.length() > 0 ? ", annotations" : "annotations");
89  
90  //            Messages.ARGUMENT_CANT_BE_NULL.format(nullArgs);
91  
92              throw new IllegalArgumentException( "Argument(s) \"" + nullArgs + "\" can''t be null.)");
93          }
94  
95          this.tagName = new QName(tagName.getNamespaceURI().intern(), tagName.getLocalPart().intern(), tagName.getPrefix());
96          this.type = type;
97          if (type instanceof Class && ((Class<?>)type).isPrimitive()) nillable = false;
98          this.annotations = annotations;
99      }
100 
101     /**
102      * Finds the specified annotation from the array and returns it.
103      * Null if not found.
104      */
105     public <A extends Annotation> A get( Class<A> annotationType ) {
106         for (Annotation a : annotations) {
107             if(a.annotationType()==annotationType)
108                 return annotationType.cast(a);
109         }
110         return null;
111     }
112 
113     /**
114      * Creates a {@link TypeInfo} for the item type,
115      * if this {@link TypeInfo} represents a collection type.
116      * Otherwise returns an identical type.
117      */
118     public TypeInfo toItemType() {
119         // if we are to reinstitute this check, check JAXB annotations only
120         // assert annotations.length==0;   // not designed to work with adapters.
121         Type t = (genericType != null)? genericType : type;
122         Type base = Utils.REFLECTION_NAVIGATOR.getBaseClass(t, Collection.class);
123         if(base==null)
124             return this;    // not a collection
125 
126         return new TypeInfo(tagName, Utils.REFLECTION_NAVIGATOR.getTypeArgument(base,0));
127     }
128 
129     public Map<String, Object> properties() {
130                 return properties;
131         }
132 
133         public boolean isGlobalElement() {
134                 return isGlobalElement;
135         }
136 
137         public void setGlobalElement(boolean isGlobalElement) {
138                 this.isGlobalElement = isGlobalElement;
139         }
140 
141         public TypeInfo getParentCollectionType() {
142                 return parentCollectionType;
143         }
144 
145         public void setParentCollectionType(TypeInfo parentCollectionType) {
146                 this.parentCollectionType = parentCollectionType;
147         }
148 
149         public boolean isRepeatedElement() {
150                 return (parentCollectionType != null);
151         }
152 
153         public Type getGenericType() {
154                 return genericType;
155         }
156 
157         public void setGenericType(Type genericType) {
158                 this.genericType = genericType;
159         }
160 
161     public boolean isNillable() {
162         return nillable;
163     }
164 
165     public void setNillable(boolean nillable) {
166         this.nillable = nillable;
167     }
168 
169     public String toString() {
170         return new StringBuilder("TypeInfo: Type = ").append(type)
171                 .append(", tag = ").append(tagName).toString();
172     }
173 
174     public TypeInfo getItemType() {
175 //      System.out.println("????? TypeInfo " + type);
176         if (type instanceof Class && ((Class)type).isArray() && !byte[].class.equals(type)) {
177             Type componentType = ((Class)type).getComponentType();
178             Type genericComponentType = null;
179             if (genericType!= null && genericType instanceof GenericArrayType) {
180                 GenericArrayType arrayType = (GenericArrayType) type;
181                 genericComponentType = arrayType.getGenericComponentType();
182                 componentType = arrayType.getGenericComponentType();
183             }
184             TypeInfo ti =new TypeInfo(tagName, componentType, annotations);
185             if (genericComponentType != null) ti.setGenericType(genericComponentType);
186             return ti;
187         }
188 //        if (type instanceof Class && java.util.Collection.class.isAssignableFrom((Class)type)) {
189         Type t = (genericType != null)? genericType : type;
190         Type base = Utils.REFLECTION_NAVIGATOR.getBaseClass(t, Collection.class);
191         if ( base != null)  {
192             return new TypeInfo(tagName, Utils.REFLECTION_NAVIGATOR.getTypeArgument(base,0), annotations);
193         }
194         return null;
195     }
196 }