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| package net.sourceforge.pmd.jsp.rules; |
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| import net.sourceforge.pmd.RuleContext; |
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| import net.sourceforge.pmd.jsp.ast.ASTJspDirectiveAttribute; |
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| import net.sourceforge.pmd.rules.ImportWrapper; |
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| import java.util.HashSet; |
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| import java.util.List; |
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| import java.util.Set; |
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| import java.util.StringTokenizer; |
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| public class DuplicateJspImports extends AbstractJspRule { |
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| private Set imports = new HashSet(); |
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| public void apply(List acus, RuleContext ctx) {
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| imports.clear();
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| super.apply(acus, ctx);
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| } |
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| public Object visit(ASTJspDirectiveAttribute node, Object data) {
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| if (!"import".equals(node.getName())) {
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| return super.visit(node, data);
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| } |
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| String values = node.getValue();
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| StringTokenizer st = new StringTokenizer(values, ",");
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| int count = st.countTokens();
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| for (int ix = 0; ix < count; ix++) {
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| String token = st.nextToken();
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| ImportWrapper wrapper = new ImportWrapper(token, token, node);
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| if (imports.contains(wrapper)) {
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| addViolation(data, node, node.getImage());
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| } else { |
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| imports.add(wrapper);
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| } |
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| } |
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| return super.visit(node, data);
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| } |
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| } |