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The Apache Commons Codec package contains simple encoder and decoders for various formats such as Base64 and Hexadecimal. In addition to these widely used encoders and decoders, the codec package also maintains a collection of phonetic encoding utilities.

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/*   Copyright 2004 The Apache Software Foundation
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.apache.xmlbeans.impl.jam.visitor;

import org.apache.xmlbeans.impl.jam.JClass;
import org.apache.xmlbeans.impl.jam.JMethod;
import org.apache.xmlbeans.impl.jam.JProperty;
import org.apache.xmlbeans.impl.jam.internal.elements.PropertyImpl;
import org.apache.xmlbeans.impl.jam.mutable.MClass;

import java.util.HashMap;
import java.util.Map;

/**
 * @author Patrick Calahan <email: pcal-at-bea-dot-com>
 */
public class PropertyInitializer extends MVisitor {

  //FIXME we may want to move to a model in which property initialization
  //is done even more lazily, i.e. only when getProperties is called.

  // ========================================================================
  // Element visitor implementation

  public void visit(MClass clazz) {
    addProperties(clazz,true);
    addProperties(clazz,false);
  }

  private void addProperties(MClass clazz, boolean declared) {
    JMethod[] methods = declared ? clazz.getDeclaredMethods() :
      clazz.getMethods();
    Map name2prop = new HashMap();
    for(int i=0; i 3 ||
        name.startsWith("is") && name.length() > 2) {
        JClass typ = methods[i].getReturnType();
        //FIXME we just want the name - this forces the whole thing to be resolved
        // need to either getReturnTypeRef() or change ClassImpl so that it lazily builds itself
        if (typ == null) continue; // must have a typ and have
        if (methods[i].getParameters().length > 0) continue; //no params
        if (name.startsWith("get")) {
          name = name.substring(3);
        } else {
          name = name.substring(2);
        }
        JProperty prop = (JProperty)name2prop.get(name);
        if (prop == null) {
          prop = declared ? clazz.addNewDeclaredProperty(name,methods[i],null) :
            clazz.addNewProperty(name,methods[i],null);
          name2prop.put(name,prop);
        } else {
          if (typ.equals(prop.getType())) {
            ((PropertyImpl)prop).setGetter(methods[i]); // cheater
          }
        }
      }

      //
      // process setters
      //
      if (name.startsWith("set") && name.length() > 3) {
        if (methods[i].getParameters().length != 1) continue; //1 param reqd
        JClass type = methods[i].getParameters()[0].getType();
        name = name.substring(3);
        JProperty prop = (JProperty)name2prop.get(name);
        if (prop == null) {
          prop = declared ? clazz.addNewDeclaredProperty(name,null,methods[i]) :
            clazz.addNewProperty(name,null,methods[i]);
          name2prop.put(name,prop);
        } else {
          if (type.equals(prop.getType())) {
            // if it's the same type, cool - just add the getter
            ((PropertyImpl)prop).setSetter(methods[i]); // with a sneaky cast
          }
        }
      }
    }
  }
}