org.dianahep.root4j.classes.TArrayC Maven / Gradle / Ivy

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Derived from FreeHEP ROOT IO (http://java.freehep.org/freehep-rootio); modernized and GUI dropped.

There is a newer version: 0.1.6

package org.dianahep.root4j.classes;

import org.dianahep.root4j.core.GenericRootClass;
import org.dianahep.root4j.core.RootType;
import org.dianahep.root4j.core.StreamerInfo;

import org.apache.bcel.generic.ConstantPoolGen;
import org.apache.bcel.generic.InstructionConstants;
import org.apache.bcel.generic.InstructionFactory;
import org.apache.bcel.generic.InstructionList;
import org.apache.bcel.generic.NEWARRAY;
import org.apache.bcel.generic.Type;


/**
 * @author Tony Johnson ([email protected])
 * @version $Id: TArrayC.java 8584 2006-08-10 23:06:37Z duns $
 */
public class TArrayC extends GenericRootClass
{
   final static Type[] arrayArgType = new Type[] { RootType.CHARARRAY };

   public TArrayC(String name, StreamerInfo info)
   {
      super(name, info);
   }

   protected String getConvertMethod()
   {
      return "getArray";
   }

   protected Type getJavaTypeForMethod()
   {
      return RootType.CHARARRAY;
   }

   protected void generateStreamer(ConstantPoolGen cp, InstructionList il, InstructionFactory factory, String className, boolean hasHeader)
   {
      il.append(InstructionConstants.ALOAD_0);
      il.append(InstructionConstants.ALOAD_1);
      il.append(InstructionConstants.DUP2);
      il.append(factory.createInvoke("org.dianahep.root4j.core.RootInput", "readInt", Type.INT, Type.NO_ARGS, INVOKEINTERFACE));
      il.append(InstructionConstants.DUP_X1);
      il.append(factory.createPutField(className, "fN", Type.INT));
      il.append(new NEWARRAY(Type.CHAR));
      il.append(InstructionConstants.DUP_X1);
      il.append(factory.createInvoke("org.dianahep.root4j.core.RootInput", "readFixedArray", Type.VOID, arrayArgType, INVOKEINTERFACE));
      il.append(factory.createPutField(className, "fArray", RootType.CHARARRAY));
   }
}