public static void cleanup()

in designer/src/com/android/tools/idea/uibuilder/handlers/constraint/ConstraintComponentUtilities.java [1001:1120]
108 lines of code
42 McCabe index (conditional complexity)

  public static void cleanup(@NotNull NlAttributesHolder transaction, @NotNull NlComponent component) {
    boolean hasLeft = hasLeft(transaction);
    boolean hasRight = hasRight(transaction);
    boolean hasTop = hasTop(transaction);
    boolean hasBottom = hasBottom(transaction);
    boolean hasBaseline = transaction.getAttribute(SHERPA_URI, ATTR_LAYOUT_BASELINE_TO_BASELINE_OF) != null;
    boolean hasStart = hasStart(transaction);
    boolean hasEnd = hasEnd(transaction);
    boolean inFlow = isInFlow(component);
    String margin;
    // Horizontal attributes
    // cleanup needs to be sdk range specific
    //
    AndroidModuleInfo moduleInfo = StudioAndroidModuleInfo.getInstance(component.getModel().getFacet());
    boolean remove_left_right = moduleInfo.getMinSdkVersion().isAtLeast(17);

    margin = transaction.getAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_LEFT);
    if (margin != null && margin.equalsIgnoreCase(VALUE_ZERO_DP)) {
      transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_LEFT, null);
    }

    margin = transaction.getAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_RIGHT);
    if (margin != null && margin.equalsIgnoreCase(VALUE_ZERO_DP)) {
      transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_RIGHT, null);
    }

    if (!hasStart) {
      transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_START, null);
      if (!hasLeft) {
        transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_LEFT, null);
      }
    }
    else {
      margin = transaction.getAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_START);
      if (margin != null && margin.equalsIgnoreCase(VALUE_ZERO_DP)) {
        transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_START, null);
        transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_LEFT, null);
      }
    }
    if (!hasEnd) {
      transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_END, null);
      if (!hasRight) {
        transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_RIGHT, null);
      }
    }
    else {
      margin = transaction.getAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_END);
      if (margin != null && margin.equalsIgnoreCase(VALUE_ZERO_DP)) {
        transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_END, null);
        transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_RIGHT, null);
      }
    }

    if (!(hasLeft && hasRight) && !(hasStart && hasEnd)) {
      transaction.setAttribute(SHERPA_URI, ATTR_LAYOUT_HORIZONTAL_BIAS, null);
    }

    if (!hasLeft && !hasRight && !hasStart && !hasEnd) {
      if (transaction.getAttribute(TOOLS_URI, ATTR_LAYOUT_EDITOR_ABSOLUTE_X) == null && !inFlow) {
        setDpAttribute(TOOLS_URI, ATTR_LAYOUT_EDITOR_ABSOLUTE_X, transaction, pixelToDP(component, getXfromParent(component)));
        transaction.setAttribute(SHERPA_URI, ATTR_LAYOUT_HORIZONTAL_CHAIN_STYLE, null);
      }
    }
    else {
      transaction.setAttribute(TOOLS_URI, ATTR_LAYOUT_EDITOR_ABSOLUTE_X, null);
    }

    // Vertical attributes

    if (!hasTop) {
      transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_TOP, null);
      transaction.setAttribute(SHERPA_URI, ATTR_LAYOUT_VERTICAL_BIAS, null);
    }
    else {
      margin = transaction.getAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_TOP);
      if (margin != null && margin.equalsIgnoreCase(VALUE_ZERO_DP)) {
        transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_TOP, null);
      }
    }
    if (!hasBottom) {
      transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_BOTTOM, null);
      transaction.setAttribute(SHERPA_URI, ATTR_LAYOUT_VERTICAL_BIAS, null);
    }
    else {
      margin = transaction.getAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_BOTTOM);
      if (margin != null && margin.equalsIgnoreCase(VALUE_ZERO_DP)) {
        transaction.setAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_BOTTOM, null);
      }
    }
    if (!hasTop && !hasBottom && !hasBaseline) {
      if (transaction.getAttribute(TOOLS_URI, ATTR_LAYOUT_EDITOR_ABSOLUTE_Y) == null && !inFlow) {
        setDpAttribute(TOOLS_URI, ATTR_LAYOUT_EDITOR_ABSOLUTE_Y, transaction, pixelToDP(component, getYfromParent(component)));
        transaction.setAttribute(SHERPA_URI, ATTR_LAYOUT_VERTICAL_CHAIN_STYLE, null);
      }
    }
    else {
      transaction.setAttribute(TOOLS_URI, ATTR_LAYOUT_EDITOR_ABSOLUTE_Y, null);
    }

    if (isGuideLine(component) || isBarrier(component) || isGroup(component)) {
      transaction.setAttribute(TOOLS_URI, ATTR_LAYOUT_EDITOR_ABSOLUTE_X, null);
      transaction.setAttribute(TOOLS_URI, ATTR_LAYOUT_EDITOR_ABSOLUTE_Y, null);
    }
    if (remove_left_right) {
      boolean start = null != transaction.getAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_START);
      if (start) {
        boolean left = null != transaction.getAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_LEFT);
        if (left) {
          transaction.removeAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_LEFT);
        }
      }
      boolean end = null != transaction.getAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_END);
      if (end) {
        boolean right = null != transaction.getAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_RIGHT);
        if (right) {
          transaction.removeAttribute(ANDROID_URI, ATTR_LAYOUT_MARGIN_RIGHT);
        }
      }
    }
  }