projectconfig.java

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  public boolean appendConfigStream(InputStream configFileStream)
      throws IOException {
    return appendConfigStream(myConfig, configFileStream);
  }

  private static boolean appendConfigStream(Properties currentValues,
      InputStream configFileStream) throws IOException {

    // Read from stream
    Properties newProps = new Properties();
    newProps.load(configFileStream);
    configFileStream.close();

    // Read new properties
    Enumeration en = newProps.keys();
    while (en.hasMoreElements()) {
      String key = (String) en.nextElement();
      String property = newProps.getProperty(key);
      if (property.startsWith("+ ")) {
        if (currentValues.getProperty(key) != null) {
          currentValues.setProperty(key, currentValues.getProperty(key) + " "
              + property.substring(1).trim());
        } else {
          currentValues.setProperty(key, property.substring(1).trim());
        }
      } else {
        currentValues.setProperty(key, property);
      }
    }

    return true;
  }

  /**
   * @return All property names in configuration
   */
  public Enumeration<String> getPropertyNames() {
    return (Enumeration<String>) myConfig.propertyNames();
  }

  /**
   * Get string value with given id.
   *
   * @param callingClass
   *          Class which value belongs to
   * @param id
   *          Id of value to return
   * @param defaultValue
   *          Default value to return if id is not found
   * @return Value or defaultValue if id wasn't found
   */
  public String getStringValue(Class callingClass, String id,
      String defaultValue) {
    return getStringValue(myConfig, callingClass, id, defaultValue);
  }

  private static String getStringValue(Properties currentValues,
      Class callingClass, String id, String defaultValue) {
    String val = currentValues.getProperty(callingClass.getName() + "." + id);

    if (val == null) {
      /*logger.warn("Could not find key named '" + callingClass.getName() + "."
          + id + "'");*/
      return defaultValue;
    }

    return val;
  }

  /**
   * Returns value of given name.
   *
   * @param name
   *          Name
   * @return Value as string
   */
  public String getStringValue(String name) {
    if (!myConfig.containsKey(name)) {
      logger.debug("Could not find key named '" + name + "'");
    }

    return myConfig.getProperty(name);
  }

  /**
   * Get string value with given id.
   *
   * @param callingClass
   *          Class which value belongs to
   * @param id
   *          Id of value to return
   * @return Value or null if id wasn't found
   */
  public String getStringValue(Class callingClass, String id) {
    return getStringValue(callingClass, id, null);
  }

  /**
   * Get string array value with given id.
   *
   * @param callingClass
   *          Class which value belongs to
   * @param id
   *          Id of value to return
   * @return Value or null if id wasn't found
   */
  public String[] getStringArrayValue(Class callingClass, String id) {
    String stringVal = getStringValue(callingClass, id, null);
    if (stringVal == null) {
      return new String[0];
    }

    return getStringValue(callingClass, id, "").split(" ");
  }

  /**
   * Get string value with given id.
   *
   * @param callingClass
   *          Class which value belongs to
   * @param id
   *          Id of value to return
   * @return Value or null if id wasn't found
   */
  public String getValue(Class callingClass, String id) {
    return getStringValue(callingClass, id);
  }

  /**
   * Get string array value with given id.
   *
   * @param id
   *          Id of value to return
   * @return Value or null if id wasn't found
   */
  public String[] getStringArrayValue(String id) {
    String stringVal = getStringValue(id);
    if (stringVal == null) {
      return new String[0];
    }

    return getStringValue(id).split(" ");
  }

  /**
   * Get integer value with given id.
   *
   * @param callingClass
   *          Class which value belongs to
   * @param id
   *          Id of value to return
   * @param defaultValue
   *          Default value to return if id is not found
   * @return Value or defaultValue if id wasn't found
   */
  public int getIntegerValue(Class callingClass, String id, int defaultValue) {
    String str = getStringValue(callingClass, id);
    if (str == null) {
      return defaultValue;
    }

    return Integer.parseInt(str);
  }

  /**
   * Get integer value with given id.
   *
   * @param callingClass
   *          Class which value belongs to
   * @param id
   *          Id of value to return
   * @return Value or 0 if id wasn't found
   */
  public int getIntegerValue(Class callingClass, String id) {
    return getIntegerValue(callingClass, id, 0);
  }

  /**
   * Get double value with given id.
   *
   * @param callingClass
   *          Class which value belongs to
   * @param id
   *          Id of value to return
   * @param defaultValue
   *          Default value to return if id is not found
   * @return Value or defaultValue if id wasn't found
   */
  public double getDoubleValue(Class callingClass, String id,
      double defaultValue) {
    String str = getStringValue(callingClass, id);
    if (str == null) {
      return defaultValue;
    }

    return Double.parseDouble(str);
  }

  /**
   * Get double value with given id.
   *
   * @param callingClass
   *          Class which value belongs to
   * @param id
   *          Id of value to return
   * @return Value or 0.0 if id wasn't found
   */
  public double getDoubleValue(Class callingClass, String id) {
    return getDoubleValue(callingClass, id, 0.0);
  }

  /**
   * Get boolean value with given id.
   *
   * @param callingClass
   *          Class which value belongs to
   * @param id
   *          Id of value to return
   * @param defaultValue
   *          Default value to return if id is not found
   * @return Value or defaultValue if id wasn't found
   */
  public boolean getBooleanValue(Class callingClass, String id,
      boolean defaultValue) {
    String str = getStringValue(callingClass, id);
    if (str == null) {
      return defaultValue;
    }

    return Boolean.parseBoolean(str);
  }

  /**
   * Get boolean value with given id.
   *
   * @param callingClass
   *          Class which value belongs to
   * @param id
   *          Id of value to return
   * @return Value or false if id wasn't found
   */
  public boolean getBooleanValue(Class callingClass, String id) {
    return getBooleanValue(callingClass, id, false);
  }

  public ProjectConfig clone() {
    try {
      ProjectConfig clone = new ProjectConfig(false);
      clone.myConfig = (Properties) this.myConfig.clone();
      clone.myProjectDirHistory = (Vector<File>) this.myProjectDirHistory.clone();
      return clone;
    } catch (Exception e) {
      return null;
    }
  }
}