DependencyType.java

package org.springframework.roo.project;

import org.apache.commons.lang3.StringUtils;
import org.springframework.roo.support.util.DomUtils;
import org.springframework.roo.support.util.XmlUtils;
import org.w3c.dom.Element;

/**
 * The type of a {@link Dependency}.
 * 
 * @author Ben Alex
 * @author Juan Carlos García
 * @since 1.0
 */
public enum DependencyType {

  JAR, POM, OTHER, WAR, ZIP, APKLIB, TESTJAR;

  /**
   * Returns the type of the dependency represented by the given XML element
   * 
   * @param dependencyElement the element from which to parse the type
   *            (required)
   * @return a non-<code>null</code> type
   * @since 1.2.0
   */
  public static DependencyType getType(final Element dependencyElement) {
    // Find the type code, if any
    final String type = getTypeCode(dependencyElement);

    // Resolve this to a DependencyType
    return valueOfTypeCode(type);
  }

  private static String getTypeCode(final Element dependencyElement) {
    if (dependencyElement.hasAttribute("type")) {
      return dependencyElement.getAttribute("type");
    }
    // Read it from the "type" child element, if any
    return DomUtils.getTextContent(XmlUtils.findFirstElement("type", dependencyElement), "").trim();
  }

  /**
   * Returns the {@link DependencyType} with the given code.
   * 
   * @param typeCode the type code to decode (can be anything, case doesn't
   *            matter)
   * @return {@link #OTHER} if the given code is non-blank and unrecognised
   * @since 1.2.0
   */
  public static DependencyType valueOfTypeCode(final String typeCode) {
    if (StringUtils.isBlank(typeCode)) {
      return JAR;
    }
    if ("test-jar".equals(typeCode)) {
      return TESTJAR;
    }
    try {
      return valueOf(typeCode.toUpperCase());
    } catch (final IllegalArgumentException invalidCode) {
      return OTHER;
    }
  }
}