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package org.mule.extras.picocontainer; |
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import org.mule.extras.picocontainer.i18n.PicocontainerMessages; |
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import org.mule.impl.container.AbstractContainerContext; |
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import org.mule.impl.container.ContainerKeyPair; |
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import org.mule.umo.lifecycle.InitialisationException; |
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import org.mule.umo.manager.ContainerException; |
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import org.mule.umo.manager.ObjectNotFoundException; |
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import org.mule.util.ClassUtils; |
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import org.mule.util.IOUtils; |
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import java.io.Reader; |
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import java.io.StringReader; |
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import org.nanocontainer.integrationkit.ContainerBuilder; |
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import org.nanocontainer.integrationkit.PicoCompositionException; |
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import org.nanocontainer.script.ScriptedContainerBuilderFactory; |
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import org.picocontainer.MutablePicoContainer; |
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import org.picocontainer.defaults.SimpleReference; |
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public class PicoContainerContext extends AbstractContainerContext |
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{ |
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public static final String CONFIGEXTENSION = "CONFIG"; |
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|
39 | 0 | private String extension = ScriptedContainerBuilderFactory.XML; |
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protected String configFile; |
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private MutablePicoContainer container; |
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public PicoContainerContext() |
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{ |
53 | 0 | super("pico"); |
54 | 0 | } |
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public String getExtension() |
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{ |
58 | 0 | return extension; |
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} |
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public void setExtension(String extension) |
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{ |
63 | 0 | this.extension = extension; |
64 | 0 | } |
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public Object getComponent(Object key) throws ObjectNotFoundException |
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{ |
68 | 0 | if (container == null) |
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{ |
70 | 0 | throw new IllegalStateException("Pico container has not been set"); |
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} |
72 | 0 | if (key == null) |
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{ |
74 | 0 | throw new ObjectNotFoundException("Component not found for null key"); |
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} |
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|
77 | 0 | if (key instanceof ContainerKeyPair) |
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{ |
79 | 0 | key = ((ContainerKeyPair)key).getKey(); |
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} |
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82 | 0 | Object component = null; |
83 | 0 | if (key instanceof String) |
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{ |
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try |
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{ |
87 | 0 | Class keyClass = ClassUtils.loadClass((String)key, getClass()); |
88 | 0 | component = container.getComponentInstance(keyClass); |
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} |
90 | 0 | catch (ClassNotFoundException e) |
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{ |
92 | 0 | component = container.getComponentInstance(key); |
93 | 0 | } |
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} |
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else |
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{ |
97 | 0 | component = container.getComponentInstance(key); |
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} |
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100 | 0 | if (component == null) |
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{ |
102 | 0 | throw new ObjectNotFoundException("Component not found for key: " + key.toString()); |
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} |
104 | 0 | return component; |
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} |
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public MutablePicoContainer getContainer() |
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{ |
112 | 0 | return container; |
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} |
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public void setContainer(MutablePicoContainer container) |
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{ |
120 | 0 | this.container = container; |
121 | 0 | } |
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public void setConfigFile(String configFile) throws PicoCompositionException |
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{ |
130 | 0 | this.configFile = configFile; |
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132 | 0 | } |
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public void configure(Reader configuration) throws ContainerException |
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{ |
136 | 0 | String className = ScriptedContainerBuilderFactory.getBuilderClassName(extension); |
137 | 0 | doConfigure(configuration, className); |
138 | 0 | } |
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protected void doConfigure(Reader configReader, String builderClassName) throws ContainerException |
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{ |
142 | 0 | org.picocontainer.defaults.ObjectReference containerRef = new SimpleReference(); |
143 | 0 | org.picocontainer.defaults.ObjectReference parentContainerRef = new SimpleReference(); |
144 | 0 | ScriptedContainerBuilderFactory scriptedContainerBuilderFactory = null; |
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try |
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{ |
147 | 0 | scriptedContainerBuilderFactory = new ScriptedContainerBuilderFactory(configReader, |
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builderClassName, Thread.currentThread().getContextClassLoader()); |
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} |
150 | 0 | catch (ClassNotFoundException e) |
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{ |
152 | 0 | throw new ContainerException(PicocontainerMessages.failedToConfigureContainer(), e); |
153 | 0 | } |
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|
155 | 0 | ContainerBuilder builder = scriptedContainerBuilderFactory.getContainerBuilder(); |
156 | 0 | builder.buildContainer(containerRef, parentContainerRef, null, false); |
157 | 0 | setContainer((MutablePicoContainer)containerRef.get()); |
158 | 0 | } |
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private String getBuilderClassName(String scriptName) |
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{ |
162 | 0 | String extension = scriptName.substring(scriptName.lastIndexOf('.')); |
163 | 0 | return ScriptedContainerBuilderFactory.getBuilderClassName(extension); |
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} |
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public void initialise() throws InitialisationException { |
167 | 0 | if (configFile == null) |
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{ |
169 | 0 | return; |
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} |
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try |
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{ |
173 | 0 | String builderClassName = getBuilderClassName(configFile); |
174 | 0 | String configString = IOUtils.getResourceAsString(configFile, getClass()); |
175 | 0 | StringReader configReader = new StringReader(configString); |
176 | 0 | doConfigure(configReader, builderClassName); |
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} |
179 | 0 | catch (Exception e) |
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{ |
181 | 0 | throw new PicoCompositionException(e); |
182 | 0 | } |
183 | 0 | } |
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public void dispose() |
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{ |
187 | 0 | if (container != null) |
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{ |
189 | 0 | container.dispose(); |
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} |
191 | 0 | } |
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} |