1/*
2 * Copyright (C) 2010 Google Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.google.doclava;
18
19import java.util.ArrayList;
20
21public class AnnotationValueInfo implements Resolvable {
22  private Object mValue;
23  private MethodInfo mElement;
24  private String mInstanceName; // exists solely for resolving elements
25  private ArrayList<Resolution> mResolutions;
26
27  public AnnotationValueInfo() {
28      mElement = null;
29      mValue = null;
30      mInstanceName = null;
31  }
32
33  public AnnotationValueInfo(MethodInfo element) {
34      mElement = element;
35    }
36
37  public void init(Object value) {
38    mValue = value;
39  }
40
41  public MethodInfo element() {
42    return mElement;
43  }
44
45  public void setElement(MethodInfo element) {
46      mElement = element;
47  }
48
49  public Object value() {
50    return mValue;
51  }
52
53  public void setAnnotationInstanceName(String instance) {
54      mInstanceName = instance;
55  }
56
57  public String valueString() {
58    Object v = mValue;
59    if (v instanceof TypeInfo) {
60      return ((TypeInfo) v).fullName();
61    } else if (v instanceof FieldInfo) {
62      StringBuilder str = new StringBuilder();
63      FieldInfo f = (FieldInfo) v;
64      str.append(f.containingClass().qualifiedName());
65      str.append('.');
66      str.append(f.name());
67      return str.toString();
68    } else if (v instanceof AnnotationInstanceInfo) {
69      return v.toString();
70    } else if (v instanceof ArrayList<?>) {
71      StringBuilder str = new StringBuilder();
72
73      @SuppressWarnings("unchecked")
74      ArrayList<AnnotationValueInfo> values = (ArrayList<AnnotationValueInfo>) v;
75
76      str.append("{");
77      for (AnnotationValueInfo info : values) {
78          str.append(info.valueString());
79          if (info != values.get(values.size()-1)) {
80            str.append(",");
81          }
82      }
83      str.append("}");
84      return str.toString();
85    } else {
86      return FieldInfo.constantLiteralValue(v);
87    }
88  }
89
90  public void addResolution(Resolution resolution) {
91      if (mResolutions == null) {
92          mResolutions = new ArrayList<Resolution>();
93      }
94
95      mResolutions.add(resolution);
96  }
97
98  public void printResolutions() {
99      System.out.println("Resolutions for Annotation Value:");
100      for (Resolution r : mResolutions) {
101          System.out.println(r);
102      }
103  }
104
105  public boolean resolveResolutions() {
106      ArrayList<Resolution> resolutions = mResolutions;
107      mResolutions = new ArrayList<Resolution>();
108
109      boolean allResolved = true;
110      for (Resolution resolution : resolutions) {
111          StringBuilder qualifiedClassName = new StringBuilder();
112          InfoBuilder.resolveQualifiedName(mInstanceName, qualifiedClassName,
113                  resolution.getInfoBuilder());
114
115          // if we still couldn't resolve it, save it for the next pass
116          if ("".equals(qualifiedClassName.toString())) {
117              mResolutions.add(resolution);
118              allResolved = false;
119          } else if ("element".equals(resolution.getVariable())) {
120              ClassInfo annotation = InfoBuilder.Caches.obtainClass(qualifiedClassName.toString());
121              for (MethodInfo m : annotation.annotationElements()) {
122                  if (resolution.getValue().equals(m.name()) ||
123                          annotation.annotationElements().size() == 1) {
124                      mElement = m;
125                      break;
126                  }
127              }
128          }
129      }
130
131      return allResolved;
132  }
133}
134