gemfire-core/src/test/java/com/gemstone/gemfire/codeAnalysis/ClassAndVariableDetails.java

/*=========================================================================
 * Copyright (c) 2010-2014 Pivotal Software, Inc. All Rights Reserved.
 * This product is protected by U.S. and international copyright
 * and intellectual property laws. Pivotal products are covered by
 * one or more patents listed at http://www.pivotal.io/patents.
 *=========================================================================
 */
package com.gemstone.gemfire.codeAnalysis;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.gemstone.gemfire.codeAnalysis.decode.CompiledClass;
import com.gemstone.gemfire.codeAnalysis.decode.CompiledField;


/**
 * A class used to store the names of dataserializable classes and the sizes
 * of their toData/fromData methods.
 * 
 * @author bruces
 *
 */
public class ClassAndVariableDetails implements Comparable {
  public String className;
  public boolean hasSerialVersionUID;
  public String serialVersionUID;
  public Map<String, String> variables = new HashMap<String, String>();
  
  public ClassAndVariableDetails(CompiledClass dclass) {
    this.className = dclass.fullyQualifiedName();
  }
  
  public ClassAndVariableDetails(String storedValues) throws IOException {
    String[] fields = storedValues.split(",");
    try {
      int fieldIndex = 2;
      className = fields[0];
      hasSerialVersionUID = Boolean.valueOf(fields[1]);
      if (hasSerialVersionUID) {
        serialVersionUID = fields[2];
        fieldIndex ++;
      }
      for (int i=fieldIndex; i<fields.length; i++) {
        String[] nameAndType = fields[i].split(":");
        variables.put(nameAndType[0], nameAndType[1]);
      }
    } catch (Exception e) {
      throw new IOException("Error parsing " + storedValues, e);
    }
  }
  
  /**
   * returns a string that can be parsed by ClassAndVariableDetails(String)
   */
  public String valuesAsString() {
    StringBuilder sb = new StringBuilder(80);
    sb.append(className);
    for (Map.Entry<String,String> entry: variables.entrySet()) {
      sb.append(',').append(entry.getKey()).append(':').append(entry.getValue());
    }
    return sb.toString();
  }
  
  /**
   * convert a ClassAndMethods into a string that can then be used to
   * instantiate a ClassAndVariableDetails
   */
  public static String convertForStoring(ClassAndVariables cam)  {
    StringBuilder sb = new StringBuilder(150);
    sb.append(cam.dclass.fullyQualifiedName());
    sb.append(',').append(cam.hasSerialVersionUID);
    if (cam.hasSerialVersionUID) {
      sb.append(',').append(cam.serialVersionUID);
    }
    
    List<CompiledField> fields = new ArrayList<CompiledField>(cam.variables.values());
    Collections.sort(fields);
    for (CompiledField field: fields) {
      sb.append(',').append(field.name())
        .append(':').append(field.descriptor());
    }
    return sb.toString();
  }
  
  @Override
  public String toString() {
    return valuesAsString();
  }
  
  @Override
  public int compareTo(Object other) {
    return this.className.compareTo(((ClassAndVariableDetails)other).className);
  }
}