DefaultValidationWorkflow.java

/*
 * Copyright (c) 2001-2007, Inversoft Inc., All Rights Reserved
 *
 * 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.primeframework.mvc.validation;

import com.google.inject.Inject;
import org.primeframework.mvc.workflow.WorkflowChain;

import javax.servlet.ServletException;
import java.io.IOException;

/**
 * Performs all the validation on the current action.
 *
 * @author Brian Pontarelli
 */
public class DefaultValidationWorkflow implements ValidationWorkflow {
  private final ValidationProcessor validationProcessor;

  @Inject
  public DefaultValidationWorkflow(ValidationProcessor validationProcessor) {
    this.validationProcessor = validationProcessor;
  }

  /**
   * Invokes the validationProcessor and if there is a validation exception, it passes the constraint violations to the
   * validationProcessor and then invokes the error workflow.
   *
   * @param chain The chain.
   * @throws IOException      If the chain throws.
   * @throws ServletException If the chain throws.
   */
  public void perform(WorkflowChain chain) throws IOException, ServletException {
    validationProcessor.validate();
    chain.continueWorkflow();
  }
}