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| package net.sourceforge.pmd.jaxen; |
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| import net.sourceforge.pmd.ast.Node; |
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| import java.lang.reflect.Method; |
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| import java.util.ArrayList; |
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| import java.util.HashMap; |
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| import java.util.Iterator; |
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| import java.util.List; |
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| import java.util.Map; |
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| |
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| public class AttributeAxisIterator implements Iterator { |
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| private static class MethodWrapper { |
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| public Method method; |
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| public String name; |
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| |
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1575
| public MethodWrapper(Method m) {
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1575
| this.method = m;
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1575
| this.name = truncateMethodName(m.getName());
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| } |
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1575
| private String truncateMethodName(String n) {
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1575
| if (n.startsWith("get")) {
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976
| n = n.substring("get".length());
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599
| } else if (n.startsWith("is")) {
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583
| n = n.substring("is".length());
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| } else if (n.startsWith("has")) {
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| n = n.substring("has".length());
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| } else if (n.startsWith("uses")) {
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| n = n.substring("uses".length());
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| } |
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1575
| return n;
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| } |
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| } |
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| |
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| private Object currObj; |
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| private MethodWrapper[] methodWrappers; |
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| private int position; |
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| private Node node; |
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| private static Map methodCache = new HashMap(); |
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974
| public AttributeAxisIterator(Node contextNode) {
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974
| this.node = contextNode;
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50 |
974
| if (!methodCache.containsKey(contextNode.getClass())) {
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176
| Method[] preFilter = contextNode.getClass().getMethods();
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| List postFilter = new ArrayList();
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| for (int i = 0; i < preFilter.length; i++) {
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9486
| if (isAttribute(preFilter[i])) {
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1575
| postFilter.add(new MethodWrapper(preFilter[i]));
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| } |
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| } |
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| methodCache.put(contextNode.getClass(), (MethodWrapper[]) postFilter.toArray(new MethodWrapper[postFilter.size()]));
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| } |
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974
| this.methodWrappers = (MethodWrapper[]) methodCache.get(contextNode.getClass());
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974
| this.position = 0;
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974
| this.currObj = getNextAttribute();
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| } |
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8742
| public Object next() {
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8742
| if (currObj == null) {
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0
| throw new IndexOutOfBoundsException();
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| } |
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8742
| Object ret = currObj;
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8742
| currObj = getNextAttribute();
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8742
| return ret;
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| } |
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10688
| public boolean hasNext() {
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10688
| return currObj != null;
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| } |
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1
| public void remove() {
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1
| throw new UnsupportedOperationException();
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| } |
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9716
| private Attribute getNextAttribute() {
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9716
| if (position == methodWrappers.length) {
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973
| return null;
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| } |
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8743
| MethodWrapper m = methodWrappers[position];
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| position++;
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| return new Attribute(node, m.name, m.method);
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| } |
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9486
| protected boolean isAttribute(Method method) {
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9486
| return (Integer.TYPE == method.getReturnType() || Boolean.TYPE == method.getReturnType() || String.class == method.getReturnType())
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| && (method.getParameterTypes().length == 0) |
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| && (Void.TYPE != method.getReturnType()) |
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| && !method.getName().startsWith("jjt") |
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| && !method.getName().equals("toString") |
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| && !method.getName().equals("getScope") |
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| && !method.getName().equals("getClass") |
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| && !method.getName().equals("getTypeNameNode") |
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| && !method.getName().equals("getImportedNameNode") |
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| && !method.getName().equals("hashCode"); |
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| } |
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| } |
