AbstractAction.java

package org.springframework.roo.addon.tailor.actions;

import java.util.Map;
import java.util.logging.Logger;

import org.springframework.roo.addon.tailor.CommandTransformation;
import org.springframework.roo.addon.tailor.util.TailorHelper;
import org.springframework.roo.support.logging.HandlerUtils;

/**
 * Performs actual action in application logic.
 * 
 * @author Vladimir Tihomirov
 */
public abstract class AbstractAction implements Action {

  private static final Logger LOGGER = HandlerUtils.getLogger(AbstractAction.class);

  /**
   * {@inheritDoc}
   */
  public void execute(final CommandTransformation command, final ActionConfig config) {
    if (isValid(config)) {
      final ActionConfig processedConfig = processConfigAttributes(command, config);
      executeImpl(command, processedConfig);
    } else {
      LOGGER.warning("Invalid configuration for tailor action: " + config);
    }
  }

  /*
   * @see #execute(RooCommand, ActionConfig)
   */
  protected abstract void executeImpl(CommandTransformation command, ActionConfig config);

  private ActionConfig processConfigAttributes(final CommandTransformation command,
      final ActionConfig config) {
    // Process variables in config
    final ActionConfig processedConfig = new ActionConfig(config.getActionTypeId());
    final Map<String, String> attributes = config.getAttributes();
    for (final Map.Entry<String, String> entry : attributes.entrySet()) {
      final String processedValue = TailorHelper.replaceVars(command, entry.getValue());
      processedConfig.setAttribute(entry.getKey(), processedValue);
    }
    return processedConfig;
  }

}