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<a name="1" href="#1">1</a> <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one</em>
<a name="3" href="#3">3</a> <em class="jxr_comment"> * or more contributor license agreements. See the NOTICE file</em>
<a name="4" href="#4">4</a> <em class="jxr_comment"> * distributed with this work for additional information</em>
<a name="5" href="#5">5</a> <em class="jxr_comment"> * regarding copyright ownership. The ASF licenses this file</em>
<a name="6" href="#6">6</a> <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em>
<a name="7" href="#7">7</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em>
<a name="8" href="#8">8</a> <em class="jxr_comment"> * with the License. You may obtain a copy of the License at</em>
<a name="9" href="#9">9</a> <em class="jxr_comment"> *</em>
<a name="10" href="#10">10</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="11" href="#11">11</a> <em class="jxr_comment"> *</em>
<a name="12" href="#12">12</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing,</em>
<a name="13" href="#13">13</a> <em class="jxr_comment"> * software distributed under the License is distributed on an</em>
<a name="14" href="#14">14</a> <em class="jxr_comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em>
<a name="15" href="#15">15</a> <em class="jxr_comment"> * KIND, either express or implied. See the License for the</em>
<a name="16" href="#16">16</a> <em class="jxr_comment"> * specific language governing permissions and limitations</em>
<a name="17" href="#17">17</a> <em class="jxr_comment"> * under the License.</em>
<a name="18" href="#18">18</a> <em class="jxr_comment"> */</em>
<a name="19" href="#19">19</a> <strong class="jxr_keyword">package</strong> org.apache.shiro.guice;
<a name="20" href="#20">20</a>
<a name="21" href="#21">21</a> <strong class="jxr_keyword">import</strong> java.beans.PropertyDescriptor;
<a name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> java.lang.reflect.InvocationTargetException;
<a name="23" href="#23">23</a> <strong class="jxr_keyword">import</strong> java.lang.reflect.Modifier;
<a name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> java.lang.reflect.Type;
<a name="25" href="#25">25</a> <strong class="jxr_keyword">import</strong> java.util.Arrays;
<a name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> java.util.HashMap;
<a name="27" href="#27">27</a> <strong class="jxr_keyword">import</strong> java.util.HashSet;
<a name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> java.util.Map;
<a name="29" href="#29">29</a> <strong class="jxr_keyword">import</strong> java.util.Set;
<a name="30" href="#30">30</a>
<a name="31" href="#31">31</a> <strong class="jxr_keyword">import</strong> com.google.inject.Binder;
<a name="32" href="#32">32</a> <strong class="jxr_keyword">import</strong> com.google.inject.ConfigurationException;
<a name="33" href="#33">33</a> <strong class="jxr_keyword">import</strong> com.google.inject.Injector;
<a name="34" href="#34">34</a> <strong class="jxr_keyword">import</strong> com.google.inject.Key;
<a name="35" href="#35">35</a> <strong class="jxr_keyword">import</strong> com.google.inject.MembersInjector;
<a name="36" href="#36">36</a> <strong class="jxr_keyword">import</strong> com.google.inject.Provider;
<a name="37" href="#37">37</a> <strong class="jxr_keyword">import</strong> com.google.inject.TypeLiteral;
<a name="38" href="#38">38</a> <strong class="jxr_keyword">import</strong> com.google.inject.matcher.Matcher;
<a name="39" href="#39">39</a> <strong class="jxr_keyword">import</strong> com.google.inject.matcher.Matchers;
<a name="40" href="#40">40</a> <strong class="jxr_keyword">import</strong> com.google.inject.multibindings.MapBinder;
<a name="41" href="#41">41</a> <strong class="jxr_keyword">import</strong> com.google.inject.name.Names;
<a name="42" href="#42">42</a> <strong class="jxr_keyword">import</strong> com.google.inject.spi.TypeEncounter;
<a name="43" href="#43">43</a> <strong class="jxr_keyword">import</strong> com.google.inject.spi.TypeListener;
<a name="44" href="#44">44</a> <strong class="jxr_keyword">import</strong> com.google.inject.util.Types;
<a name="45" href="#45">45</a>
<a name="46" href="#46">46</a> <strong class="jxr_keyword">import</strong> org.apache.commons.beanutils.PropertyUtils;
<a name="47" href="#47">47</a> <strong class="jxr_keyword">import</strong> org.apache.shiro.SecurityUtils;
<a name="48" href="#48">48</a>
<a name="49" href="#49">49</a> <em class="jxr_javadoccomment">/**</em>
<a name="50" href="#50">50</a> <em class="jxr_javadoccomment"> * TypeListener that injects setter methods on Shiro objects.</em>
<a name="51" href="#51">51</a> <em class="jxr_javadoccomment"> */</em>
<a name="52" href="#52">52</a> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/shiro/guice/BeanTypeListener.html">BeanTypeListener</a> implements TypeListener {
<a name="53" href="#53">53</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Package SHIRO_GUICE_PACKAGE = ShiroModule.<strong class="jxr_keyword">class</strong>.getPackage();
<a name="54" href="#54">54</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Package SHIRO_PACKAGE = SecurityUtils.<strong class="jxr_keyword">class</strong>.getPackage();
<a name="55" href="#55">55</a>
<a name="56" href="#56">56</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> Matcher&lt;Class&gt; shiroMatcher = Matchers.inSubpackage(SHIRO_PACKAGE.getName());
<a name="57" href="#57">57</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> Matcher&lt;Class&gt; shiroGuiceMatcher = Matchers.inSubpackage(SHIRO_GUICE_PACKAGE.getName());
<a name="58" href="#58">58</a>
<a name="59" href="#59">59</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> Matcher&lt;Class&gt; classMatcher = ShiroMatchers.ANY_PACKAGE.and(shiroMatcher.and(Matchers.not(shiroGuiceMatcher)));
<a name="60" href="#60">60</a>
<a name="61" href="#61">61</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Matcher&lt;TypeLiteral&gt; MATCHER = ShiroMatchers.typeLiteral(classMatcher);
<a name="62" href="#62">62</a>
<a name="63" href="#63">63</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> String BEAN_TYPE_MAP_NAME = <span class="jxr_string">"__SHIRO_BEAN_TYPES__"</span>;
<a name="64" href="#64">64</a> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Key&lt;?&gt; MAP_KEY = Key.get(Types.mapOf(TypeLiteral.<strong class="jxr_keyword">class</strong>, BeanTypeKey.<strong class="jxr_keyword">class</strong>), Names.named(BEAN_TYPE_MAP_NAME));
<a name="65" href="#65">65</a>
<a name="66" href="#66">66</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Set&lt;Class&lt;?&gt;&gt; WRAPPER_TYPES = <strong class="jxr_keyword">new</strong> HashSet&lt;Class&lt;?&gt;&gt;(Arrays.asList(
<a name="67" href="#67">67</a> Byte.<strong class="jxr_keyword">class</strong>,
<a name="68" href="#68">68</a> Boolean.<strong class="jxr_keyword">class</strong>,
<a name="69" href="#69">69</a> Character.<strong class="jxr_keyword">class</strong>,
<a name="70" href="#70">70</a> Double.<strong class="jxr_keyword">class</strong>,
<a name="71" href="#71">71</a> Float.<strong class="jxr_keyword">class</strong>,
<a name="72" href="#72">72</a> Integer.<strong class="jxr_keyword">class</strong>,
<a name="73" href="#73">73</a> Long.<strong class="jxr_keyword">class</strong>,
<a name="74" href="#74">74</a> Short.<strong class="jxr_keyword">class</strong>,
<a name="75" href="#75">75</a> Void.<strong class="jxr_keyword">class</strong>));
<a name="76" href="#76">76</a>
<a name="77" href="#77">77</a> <strong class="jxr_keyword">public</strong> &lt;I&gt; <strong class="jxr_keyword">void</strong> hear(TypeLiteral&lt;I&gt; type, <strong class="jxr_keyword">final</strong> TypeEncounter&lt;I&gt; encounter) {
<a name="78" href="#78">78</a> PropertyDescriptor propertyDescriptors[] = PropertyUtils.getPropertyDescriptors(type.getRawType());
<a name="79" href="#79">79</a> <strong class="jxr_keyword">final</strong> Map&lt;PropertyDescriptor, Key&lt;?&gt;&gt; propertyDependencies = <strong class="jxr_keyword">new</strong> HashMap&lt;PropertyDescriptor, Key&lt;?&gt;&gt;(propertyDescriptors.length);
<a name="80" href="#80">80</a> <strong class="jxr_keyword">final</strong> Provider&lt;Injector&gt; injectorProvider = encounter.getProvider(Injector.<strong class="jxr_keyword">class</strong>);
<a name="81" href="#81">81</a> <strong class="jxr_keyword">for</strong> (PropertyDescriptor propertyDescriptor : propertyDescriptors) {
<a name="82" href="#82">82</a> <strong class="jxr_keyword">if</strong> (propertyDescriptor.getWriteMethod() != <strong class="jxr_keyword">null</strong> &amp;&amp; Modifier.isPublic(propertyDescriptor.getWriteMethod().getModifiers())) {
<a name="83" href="#83">83</a> Type propertyType = propertyDescriptor.getWriteMethod().getGenericParameterTypes()[0];
<a name="84" href="#84">84</a> propertyDependencies.put(propertyDescriptor, createDependencyKey(propertyDescriptor, propertyType));
<a name="85" href="#85">85</a> }
<a name="86" href="#86">86</a> }
<a name="87" href="#87">87</a> encounter.register(<strong class="jxr_keyword">new</strong> MembersInjector&lt;I&gt;() {
<a name="88" href="#88">88</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> injectMembers(I instance) {
<a name="89" href="#89">89</a> <strong class="jxr_keyword">for</strong> (Map.Entry&lt;PropertyDescriptor, Key&lt;?&gt;&gt; dependency : propertyDependencies.entrySet()) {
<a name="90" href="#90">90</a> <strong class="jxr_keyword">try</strong> {
<a name="91" href="#91">91</a> <strong class="jxr_keyword">final</strong> Injector injector = injectorProvider.get();
<a name="92" href="#92">92</a>
<a name="93" href="#93">93</a> Object value = injector.getInstance(getMappedKey(injector, dependency.getValue()));
<a name="94" href="#94">94</a> dependency.getKey().getWriteMethod().invoke(instance, value);
<a name="95" href="#95">95</a>
<a name="96" href="#96">96</a> } <strong class="jxr_keyword">catch</strong> (ConfigurationException e) {
<a name="97" href="#97">97</a> <em class="jxr_comment">// This is ok, it simply means that we can't fulfill this dependency.</em>
<a name="98" href="#98">98</a> <em class="jxr_comment">// Is there a better way to do this?</em>
<a name="99" href="#99">99</a> } <strong class="jxr_keyword">catch</strong> (InvocationTargetException e) {
<a name="100" href="#100">100</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> RuntimeException(<span class="jxr_string">"Couldn't set property "</span> + dependency.getKey().getDisplayName(), e);
<a name="101" href="#101">101</a> } <strong class="jxr_keyword">catch</strong> (IllegalAccessException e) {
<a name="102" href="#102">102</a> <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> RuntimeException(<span class="jxr_string">"We shouldn't have ever reached this point, we don't try to inject to non-accessible methods."</span>, e);
<a name="103" href="#103">103</a> }
<a name="104" href="#104">104</a> }
<a name="105" href="#105">105</a>
<a name="106" href="#106">106</a> }
<a name="107" href="#107">107</a> });
<a name="108" href="#108">108</a> }
<a name="109" href="#109">109</a>
<a name="110" href="#110">110</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> Key&lt;?&gt; getMappedKey(Injector injector, Key&lt;?&gt; key) {
<a name="111" href="#111">111</a> Map&lt;TypeLiteral, BeanTypeKey&gt; beanTypeMap = getBeanTypeMap(injector);
<a name="112" href="#112">112</a> <strong class="jxr_keyword">if</strong>(key.getAnnotation() == <strong class="jxr_keyword">null</strong> &amp;&amp; beanTypeMap.containsKey(key.getTypeLiteral())) {
<a name="113" href="#113">113</a> <strong class="jxr_keyword">return</strong> beanTypeMap.get(key.getTypeLiteral()).key;
<a name="114" href="#114">114</a> } <strong class="jxr_keyword">else</strong> {
<a name="115" href="#115">115</a> <strong class="jxr_keyword">return</strong> key;
<a name="116" href="#116">116</a> }
<a name="117" href="#117">117</a> }
<a name="118" href="#118">118</a>
<a name="119" href="#119">119</a> @SuppressWarnings({<span class="jxr_string">"unchecked"</span>})
<a name="120" href="#120">120</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> Map&lt;TypeLiteral, BeanTypeKey&gt; getBeanTypeMap(Injector injector) {
<a name="121" href="#121">121</a> <strong class="jxr_keyword">return</strong> (Map&lt;TypeLiteral, BeanTypeKey&gt;) injector.getInstance(MAP_KEY);
<a name="122" href="#122">122</a> }
<a name="123" href="#123">123</a>
<a name="124" href="#124">124</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> Key&lt;?&gt; createDependencyKey(PropertyDescriptor propertyDescriptor, Type propertyType) {
<a name="125" href="#125">125</a> <strong class="jxr_keyword">if</strong>(requiresName(propertyType)) {
<a name="126" href="#126">126</a> <strong class="jxr_keyword">return</strong> Key.get(propertyType, Names.named(<span class="jxr_string">"shiro."</span> + propertyDescriptor.getName()));
<a name="127" href="#127">127</a> } <strong class="jxr_keyword">else</strong> {
<a name="128" href="#128">128</a> <strong class="jxr_keyword">return</strong> Key.get(propertyType);
<a name="129" href="#129">129</a> }
<a name="130" href="#130">130</a> }
<a name="131" href="#131">131</a>
<a name="132" href="#132">132</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">boolean</strong> requiresName(Type propertyType) {
<a name="133" href="#133">133</a> <strong class="jxr_keyword">if</strong> (propertyType instanceof Class) {
<a name="134" href="#134">134</a> Class&lt;?&gt; aClass = (Class&lt;?&gt;) propertyType;
<a name="135" href="#135">135</a> <strong class="jxr_keyword">return</strong> aClass.isPrimitive() || aClass.isEnum() || WRAPPER_TYPES.contains(aClass) || CharSequence.<strong class="jxr_keyword">class</strong>.isAssignableFrom(aClass);
<a name="136" href="#136">136</a> } <strong class="jxr_keyword">else</strong> {
<a name="137" href="#137">137</a> <strong class="jxr_keyword">return</strong> false;
<a name="138" href="#138">138</a> }
<a name="139" href="#139">139</a> }
<a name="140" href="#140">140</a>
<a name="141" href="#141">141</a> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> ensureBeanTypeMapExists(Binder binder) {
<a name="142" href="#142">142</a> beanTypeMapBinding(binder).addBinding(TypeLiteral.get(BeanTypeKey.<strong class="jxr_keyword">class</strong>)).toInstance(<strong class="jxr_keyword">new</strong> BeanTypeKey(<strong class="jxr_keyword">null</strong>));
<a name="143" href="#143">143</a> }
<a name="144" href="#144">144</a>
<a name="145" href="#145">145</a> <strong class="jxr_keyword">static</strong> &lt;T&gt; <strong class="jxr_keyword">void</strong> bindBeanType(Binder binder, TypeLiteral&lt;T&gt; typeLiteral, Key&lt;? <strong class="jxr_keyword">extends</strong> T&gt; key) {
<a name="146" href="#146">146</a> beanTypeMapBinding(binder).addBinding(typeLiteral).toInstance(<strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/shiro/guice/BeanTypeListener.html">BeanTypeKey</a>(key));
<a name="147" href="#147">147</a> }
<a name="148" href="#148">148</a>
<a name="149" href="#149">149</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> MapBinder&lt;TypeLiteral, BeanTypeKey&gt; beanTypeMapBinding(Binder binder) {
<a name="150" href="#150">150</a> <strong class="jxr_keyword">return</strong> MapBinder.newMapBinder(binder, TypeLiteral.<strong class="jxr_keyword">class</strong>, BeanTypeKey.<strong class="jxr_keyword">class</strong>, Names.named(BEAN_TYPE_MAP_NAME));
<a name="151" href="#151">151</a> }
<a name="152" href="#152">152</a>
<a name="153" href="#153">153</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/shiro/guice/BeanTypeListener.html">BeanTypeKey</a> {
<a name="154" href="#154">154</a> Key&lt;?&gt; key;
<a name="155" href="#155">155</a>
<a name="156" href="#156">156</a> <strong class="jxr_keyword">private</strong> <a href="../../../../org/apache/shiro/guice/BeanTypeListener.html">BeanTypeKey</a>(Key&lt;?&gt; key) {
<a name="157" href="#157">157</a> <strong class="jxr_keyword">this</strong>.key = key;
<a name="158" href="#158">158</a> }
<a name="159" href="#159">159</a> }
<a name="160" href="#160">160</a> }
</pre>
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