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| package org.dom4j.tree; |
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| import java.util.ArrayList; |
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| import java.util.Collections; |
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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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| import java.util.WeakHashMap; |
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| import org.dom4j.DocumentFactory; |
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| import org.dom4j.Namespace; |
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| import org.dom4j.QName; |
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| public class QNameCache { |
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| protected Map noNamespaceCache = Collections |
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| .synchronizedMap(new WeakHashMap()); |
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| protected Map namespaceCache = Collections |
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| .synchronizedMap(new WeakHashMap()); |
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| private DocumentFactory documentFactory; |
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| public QNameCache() {
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| } |
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| public QNameCache(DocumentFactory documentFactory) {
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| this.documentFactory = documentFactory;
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| } |
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| public List getQNames() {
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| List answer = new ArrayList();
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| answer.addAll(noNamespaceCache.values());
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| for (Iterator it = namespaceCache.values().iterator(); it.hasNext();) {
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| Map map = (Map) it.next();
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| answer.addAll(map.values());
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| } |
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| return answer;
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| } |
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26755
| public QName get(String name) {
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| QName answer = null;
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| if (name != null) {
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| answer = (QName) noNamespaceCache.get(name);
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| } else { |
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| name = "";
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| } |
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| if (answer == null) {
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| answer = createQName(name);
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| answer.setDocumentFactory(documentFactory);
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| noNamespaceCache.put(name, answer);
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| } |
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| return answer;
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| } |
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| public QName get(String name, Namespace namespace) {
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| Map cache = getNamespaceCache(namespace);
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| QName answer = null;
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| if (name != null) {
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| answer = (QName) cache.get(name);
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| } else { |
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| name = "";
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| } |
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| if (answer == null) {
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| answer = createQName(name, namespace);
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| answer.setDocumentFactory(documentFactory);
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| cache.put(name, answer);
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| } |
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| return answer;
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| } |
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| public QName get(String localName, Namespace namespace, String qName) {
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| Map cache = getNamespaceCache(namespace);
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| QName answer = null;
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| if (localName != null) {
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| answer = (QName) cache.get(localName);
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| } else { |
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| localName = "";
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| } |
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| if (answer == null) {
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| answer = createQName(localName, namespace, qName);
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| answer.setDocumentFactory(documentFactory);
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| cache.put(localName, answer);
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| } |
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| return answer;
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| } |
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| public QName get(String qualifiedName, String uri) {
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| int index = qualifiedName.indexOf(':');
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| if (index < 0) {
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| return get(qualifiedName, Namespace.get(uri));
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| } else { |
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| String name = qualifiedName.substring(index + 1);
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| String prefix = qualifiedName.substring(0, index);
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| return get(name, Namespace.get(prefix, uri));
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| } |
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| } |
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| public QName intern(QName qname) {
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| return get(qname.getName(), qname.getNamespace(), qname
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| .getQualifiedName()); |
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| } |
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105078
| protected Map getNamespaceCache(Namespace namespace) {
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| if (namespace == Namespace.NO_NAMESPACE) {
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84795
| return noNamespaceCache;
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| } |
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20283
| Map answer = null;
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| if (namespace != null) {
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| answer = (Map) namespaceCache.get(namespace);
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| } |
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| if (answer == null) {
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| answer = createMap();
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| namespaceCache.put(namespace, answer);
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| } |
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| return answer;
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| } |
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| protected Map createMap() {
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| return Collections.synchronizedMap(new HashMap());
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| } |
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| protected QName createQName(String name) {
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| return new QName(name);
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| } |
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| protected QName createQName(String name, Namespace namespace) {
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| return new QName(name, namespace);
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| } |
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| protected QName createQName(String name, Namespace namespace,
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| String qualifiedName) { |
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| return new QName(name, namespace, qualifiedName);
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| } |
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| } |
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