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| package org.drools.semantics.annotation.model; |
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| |
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| import java.io.Externalizable; |
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| import java.io.IOException; |
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| import java.io.ObjectInput; |
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| import java.io.ObjectOutput; |
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| import java.lang.reflect.Method; |
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| |
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| import org.drools.rule.Rule; |
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| import org.drools.spi.Tuple; |
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| |
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| class RuleReflectMethod implements Externalizable |
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| { |
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| private Rule rule; |
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| private Object pojo; |
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| private Method method; |
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| private ParameterValue[] parameterValues; |
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| |
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| |
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| public RuleReflectMethod() {}
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| |
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| public RuleReflectMethod( Rule rule, Object pojo, Method method,
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| ParameterValue[] parameterValues ) |
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| { |
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| this.rule = rule;
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| this.pojo = pojo;
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| this.method = method;
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| this.parameterValues = parameterValues;
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| } |
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| |
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| public ParameterValue[] getParameterValues( )
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| { |
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| return parameterValues;
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| } |
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| |
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| public Object invokeMethod( Tuple tuple ) throws Exception
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| { |
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| method.setAccessible( true );
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| return method.invoke( pojo, getMethodArguments( tuple ) );
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| } |
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| |
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| private Object[] getMethodArguments( Tuple tuple )
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| { |
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| Object[] args = new Object[parameterValues.length];
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| for (int i = 0; i < parameterValues.length; i++)
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| { |
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| args[i] = parameterValues[i].getValue( tuple );
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| } |
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| return args;
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| } |
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| |
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| public void writeExternal(ObjectOutput out) throws IOException
|
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| { |
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| out.writeObject(rule);
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| out.writeObject(pojo);
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| out.writeObject(method.getName());
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| out.writeObject(method.getParameterTypes());
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| out.writeObject(parameterValues);
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| } |
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| |
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| public void readExternal(ObjectInput in) throws IOException,
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| ClassNotFoundException |
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| { |
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| rule = (Rule) in.readObject();
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| pojo = in.readObject();
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| |
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| String methodName = (String) in.readObject();
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| Class[] parameterTypes = (Class[]) in.readObject();
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| try
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| { |
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| method = pojo.getClass().getMethod(methodName, parameterTypes);
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| } |
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| catch ( Exception e ) |
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| { |
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| throw new RuntimeException(e);
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| } |
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| |
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| parameterValues = (ParameterValue[]) in.readObject();
|
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| } |
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| |
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| public String toString() {
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| return pojo.getClass().getSimpleName()
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| + "." + method.getName() |
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| + "(" + toStringParamterTypes() + ")"; |
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| } |
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| |
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| private String toStringParamterTypes() {
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| return "...";
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| } |
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| } |