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| package org.apache.tapestry.enhance; |
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| import java.lang.reflect.Modifier; |
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| import org.apache.hivemind.Location; |
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| import org.apache.hivemind.Resource; |
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| import org.apache.hivemind.service.MethodSignature; |
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| import org.apache.hivemind.util.Defense; |
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| import org.apache.tapestry.IScript; |
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| import org.apache.tapestry.engine.IScriptSource; |
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| import org.apache.tapestry.spec.InjectSpecification; |
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| public class InjectScriptWorker implements InjectEnhancementWorker |
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| { |
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| private IScriptSource _source; |
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| public void performEnhancement(EnhancementOperation op, InjectSpecification spec)
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| { |
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| String propertyName = spec.getProperty();
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| String scriptName = spec.getObject();
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| Location location = spec.getLocation();
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| injectScript(op, propertyName, scriptName, location);
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| } |
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| public void injectScript(EnhancementOperation op, String propertyName, String scriptName,
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| Location location) |
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| { |
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| Defense.notNull(op, "op");
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| Defense.notNull(propertyName, "propertyName");
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| Defense.notNull(scriptName, "scriptName");
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| Defense.notNull(location, "location");
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| op.claimReadonlyProperty(propertyName);
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| Class propertyType = EnhanceUtils.verifyPropertyType(op, propertyName, IScript.class);
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| String methodName = op.getAccessorMethodName(propertyName);
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| Resource resource = location.getResource().getRelativeResource(scriptName);
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| DeferredScript script = new DeferredScriptImpl(resource, _source, location);
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| String fieldName = op.addInjectedField("_$script", DeferredScript.class, script);
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| MethodSignature sig = new MethodSignature(propertyType, methodName, null, null);
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| op.addMethod(Modifier.PUBLIC, sig, "return " + fieldName + ".getScript();", location);
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| } |
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| public void setSource(IScriptSource source)
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| { |
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| _source = source;
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| } |
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| } |